Composition, surface treatment agent, article, and method for producing article

Abstract

Provided are: a composition which contains a first compound and a second compound and in which the first compound and the second compound are represented by formula (A), and T and / or Y1 in formula (A) are different for the first compound and the second compound; and an application of said composition. In formula (A), Y1 denotes a monovalent hydrocarbon group or TA-(Si(R1A)2-O)ma-＊1A, Y2 denotes ＊S1-Si(R2)nL3-n or ＊S3-[Si(L2)2-P]r1-Si(L2)3, T and TA each denote a monovalent group, R1, R2 and R1A each denote a monovalent hydrocarbon group, A denotes a linking group having a valency of (q+1), m and ma each denote a number of 1 or more, q denotes an integer of 1 or more, L2 denotes a hydrolyzable group, a group having a hydrolyzable group, a hydroxyl group or a hydrocarbon group, L and at least four L2 moieties each denote a hydrolyzable group, a group having a hydrolyzable group, or a hydroxyl group, P denotes an oxygen atom or an organic group having one carbon atom that bonds to two adjacent Si atoms, n denotes an integer between 0 and 2, r1 denotes an integer between 1 and 3, and ＊1A, ＊A1 and ＊S3 each denote a bonding site.

Description

Composition, surface treatment agent, article, and method for manufacturing article

[0001] The present disclosure relates to compositions, surface treatments, articles, and methods for making articles.

[0002] In recent years, there has been a demand for technologies that make surfaces of articles less susceptible to fingerprints and that make them easier to remove stains, in order to improve performance such as appearance and visibility. As a specific method, a method of performing a surface treatment on the surface of an article using a surface treatment agent is known.

[0003] For example, Patent Document 1 describes a surface treatment agent containing a silane compound having a divalent linear organopolysiloxane group and a group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded.

[0004] International Publication No. 2023 / 017830

[0005] Compositions used as surface treatment agents and the like are required to be able to form a surface treatment layer that is resistant to stains such as fingerprints, is easy to wipe off, and has good slip properties.

[0006] The present disclosure has been made in view of the above circumstances, and one embodiment of the present disclosure relates to a composition and a surface treatment agent capable of forming a surface treatment layer on a substrate that has a well-balanced combination of antifouling properties, fingerprint removability, and slipperiness. Another embodiment of the present disclosure relates to an article having a surface treatment layer that has a well-balanced combination of antifouling properties, fingerprint removability, and slipperiness, and a method for manufacturing the article.

[0007] The present disclosure includes the following aspects: <1> A composition containing a first compound and a second compound, wherein the first compound and the second compound are each represented by formula (A), and T and Y in formula (A) are each independently selected from the group consisting of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 39, 38, 39, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, １ At least one of the above is different from each other.

[0008]

[0009] In formula (A), T is a monovalent group, and R １ are each independently a monovalent hydrocarbon group; １represents a monovalent hydrocarbon group or a group represented by formula (1A), A represents a (q+1)-valent linking group, and Y ２ are each independently a group represented by formula (S1) or formula (S3), m is a number of 1 or more, and q is an integer of 1 or more. Ａ -(Si(R １Ａ ) ２ -O) ｍａ -* １Ａ ...(1A) In formula (1A), T Ａ is a monovalent group, R １Ａ are each independently a monovalent hydrocarbon group, ma is a number of 1 or more, １Ａ is the bonding site to the silicon atom in formula (A). Ｓ１ -Si(R ２ ) ｎ L ３－ｎ ...(S1) In formula (S1), R ２ are each independently a hydrocarbon group; each L is independently a hydrolyzable group, a group having a hydrolyzable group, or a hydroxyl group; n is an integer of 0 to 2; Ｓ１ is the bonding site to the linking group represented by A in formula (A). Ｓ３ -[Si(L ２ ) ２ -P] ｒ１ -Si(L ２ ) ３ ...(S3) In formula (S3), L ２ each independently represents a hydrolyzable group, a group having a hydrolyzable group, a hydroxyl group, or a hydrocarbon group; ２ At least four L ２ is a hydrolyzable group, a group having a hydrolyzable group, or a hydroxyl group; each P is independently an oxygen atom or an organic group having one carbon atom bonded to adjacent Si atoms on both sides; r1 is an integer of 1 to 3; Ｓ３is a bonding site to the linking group represented by A in formula (A). <2> The composition according to <1>, wherein the first compound and the second compound are each represented by formula (1), and T in formula (1) of the first compound is different from T in formula (1) of the second compound. T-(Si(R １ ) ２ -O) ｍ -Si(R １ ) ２ -A-(Si(R ２ ) ｎ L ３－ｎ ) ｑ ...(1) In formula (1), T is a monovalent group, and R １ are each independently a monovalent hydrocarbon group, A is a (q+1)-valent linking group, and R ２ are each independently a monovalent hydrocarbon group, L is each independently a hydrolyzable group, a group having a hydrolyzable group, or a hydroxyl group, m is a number of 1 or more, n is each independently an integer of 0 to 2, and q is an integer of 1 or more. <3> The composition according to <1> or <2>, wherein in formula (A), T is a methyl group, a linear alkyl group having 2 or more carbon atoms, an alkyl group having at least one of a branched structure and a cyclic structure and having 3 or more carbon atoms, a group represented by formula (2A), or a group represented by formula (2B). [R １１ -(Si(R １２ ) ２ -O) ｍ１ ] ３ Si—O—* １ ... (2A) R １３ -O-* １ ...(2B) In formulas (2A) to (2B), R １１ are each independently a monovalent hydrocarbon group or a group R １４ ３ Si—O—* ２ and the three R １１ Two or more of the following are R １４ ３ Si—O—* ２ and R １４ are each independently a monovalent hydrocarbon group or a trialkylsilyloxy group, ２is the bonding site to the silicon atom in formula (2A), and R １２ are each independently a monovalent hydrocarbon group, m1 is each independently a number of 0 or more, R １３ is a monovalent cyclic polysiloxane residue or a monovalent cage-like polysiloxane residue, １ is a bonding site to the silicon atom in formula (1). <4> The composition according to <3>, wherein T in formula (A) in the second compound is a methyl group, a linear alkyl group having 2 or more carbon atoms, or an alkyl group having 3 or more carbon atoms and at least one of a branched structure and a cyclic structure. <5> The composition according to <3> or <4>, wherein T in formula (A) in the first compound is a group represented by formula (2A) or a group represented by formula (2B). <6> The first compound and the second compound are １ and Y in formula (A) in the second compound １ <7> The composition according to <1>, wherein Y in formula (A) of the first compound is different from １ is a group represented by formula (1A), and Y in formula (A) of the second compound １ is a monovalent hydrocarbon group. <8> The composition according to any one of <1> to <7>, wherein q in formula (A) is an integer of 1 to 4. <9> The composition according to any one of <1> to <8>, wherein m in formula (A) is a number of 1 to 500. <10> The composition according to any one of <1> to <9>, further comprising a liquid medium. <11> The surface treatment agent, which is the composition according to any one of <1> to <10>. <12> A method for producing an article, comprising treating a substrate with the surface treatment agent according to <11> to produce an article having a surface treatment layer formed on the substrate. <13> An article comprising a substrate and a surface treatment layer disposed on the substrate and surface-treated with the surface treatment agent according to <11>. <14> The article according to <13>, which is an optical member. <15> The article according to <13>, which is a display or a touch panel.

[0010] According to one embodiment of the present disclosure, there are provided a composition and a surface treatment agent capable of forming a surface treatment layer on a substrate that has a well-balanced combination of antifouling properties, fingerprint removability, and slipperiness. Also, according to one embodiment of the present disclosure, there are provided an article having a surface treatment layer that has a well-balanced combination of antifouling properties, fingerprint removability, and slipperiness, and a method for manufacturing the article.

[0011] Hereinafter, modes for carrying out embodiments of the present disclosure will be described in detail. However, the embodiments of the present disclosure are not limited to the following embodiments. In the following embodiments, components (including element steps, etc.) are not essential unless otherwise specified. The same applies to numerical values ​​and their ranges, and they do not limit the embodiments of the present disclosure.

[0012] In the present disclosure, numerical ranges indicated using "to" include the numerical values ​​before and after "to" as the minimum and maximum values, respectively. In numerical ranges described in stages in the present disclosure, the upper or lower limit value described in one numerical range may be replaced with the upper or lower limit value of another staged numerical range. Furthermore, in numerical ranges described in this specification, the upper or lower limit value of that numerical range may be replaced with a value shown in the examples. In the present disclosure, each component may contain multiple corresponding substances. When multiple substances corresponding to each component are present in the composition, the content or amount of each component refers to the total content or amount of the multiple substances present in the composition, unless otherwise specified. In the present disclosure, a "surface treatment layer" refers to a layer formed on the surface of a substrate by surface treatment. In the present disclosure, when a compound or group is represented by a specific formula (X), the compound or group represented by the formula (X) may be referred to as compound (X) or compound X, and group (X) or group X, respectively. In the present disclosure, "Me" may refer to a methyl group.

[0013] The bonding direction of divalent groups represented in this specification is not limited unless otherwise specified. For example, when Y is -COO- in a compound represented by the formula "X-Y-Z", Y may be -CO-O- or -O-CO-. In addition, the compound may be "X-CO-O-Z" or "X-O-CO-Z".

[0014] [Composition] The composition of the present disclosure includes a first compound and a second compound, and the first compound and the second compound are each represented by formula (A), and T and Y in formula (A) １ At least one of them is different from each other.

[0015]

[0016] In formula (A), T is a monovalent group, and R １ are each independently a monovalent hydrocarbon group; １ represents a monovalent hydrocarbon group or a group represented by formula (1A), A represents a (q+1)-valent linking group, and Y ２ are each independently a group represented by formula (S1) or formula (S3), m is a number of 1 or more, and q is an integer of 1 or more.

[0017] T Ａ -(Si(R １Ａ ) ２ -O) ｍａ -* １Ａ ...(1A) In formula (1A), T Ａ is a monovalent group, R １Ａ are each independently a monovalent hydrocarbon group, ma is a number of 1 or more, １Ａ is the bonding site to the silicon atom in formula (A).

[0018] * Ｓ１ -Si(R ２ ) ｎ L ３－ｎ ...(S1) In formula (S1), R ２ are each independently a hydrocarbon group; each L is independently a hydrolyzable group, a group having a hydrolyzable group, or a hydroxyl group; n is an integer of 0 to 2; Ｓ１is the bonding site to the linking group represented by A in formula (A).

[0019] * Ｓ３ -[Si(L ２ ) ２ -P] ｒ１ -Si(L ２ ) ３ ...(S3) In formula (S3), L ２ each independently represents a hydrolyzable group, a group having a hydrolyzable group, a hydroxyl group, or a hydrocarbon group; ２ At least four L ２ is a hydrolyzable group, a group having a hydrolyzable group, or a hydroxyl group; each P is independently an oxygen atom or an organic group having one carbon atom bonded to adjacent Si atoms on both sides; r1 is an integer of 1 to 3; Ｓ３ is the bonding site to the linking group represented by A in formula (A).

[0020] That is, the compositions of the present disclosure contain a group T and a group Y １ According to the composition of the present disclosure, the compound (A) contains two or more compounds in which at least one of the groups T and Y is different from each other. １ By including two or more compounds (A) in which at least one of the above is different from each other, it is possible to form a surface treatment layer that has a good balance of antifouling properties, fingerprint removability, and slipperiness. With a composition containing only one compound (A), it is easy to obtain a surface treatment layer that is excellent in any one of the three properties of antifouling properties, fingerprint removability, and slipperiness, but it is difficult to obtain a surface treatment layer that has a good balance of all three properties. The properties of a surface treatment layer formed by a composition containing only one compound (A) depend on the groups T and Y contained in the compound (A). １ Therefore, it is considered that a composition containing two or more types of compound (A) makes it easier to obtain a surface treatment layer having the above three properties in a good balance, compared to a composition containing only one type of compound (A).

[0021] The compositions of the present disclosure comprise a group T and a group Y １ The two or more compounds (A) may be at least one of which is different from each other, and the two or more compounds (A) may be at least one of which is a group T and a group Y １and the group T and the group Y １ In addition, the composition of the present disclosure may be such that only one of the groups T and Y １ It is sufficient that at least one of the groups T and Y contains two or more different compounds (A). １ In other words, the composition of the present disclosure may further include a third compound in addition to the first compound and the second compound, and the third compound is compound (A), and the group T and the group Y are different from each other. １ At least one of the first compound and the second compound may be different.

[0022] In the composition of the present disclosure, it is preferred that the first compound and the second compound are each represented by formula (1), and that T in formula (1) of the first compound is different from T in formula (1) of the second compound. １ ) ２ -O) ｍ -Si(R １ ) ２ -A-(Si(R ２ ) ｎ L ３－ｎ ) ｑ ...(1) In formula (1), T is a monovalent group, and R １ are each independently a monovalent hydrocarbon group, A is a (q+1)-valent linking group, and R ２ are each independently a monovalent hydrocarbon group; each L is independently a hydrolyzable group, a group having a hydrolyzable group, or a hydroxyl group; m is a number of 1 or more; each n is independently an integer of 0 to 2; and q is an integer of 1 or more.

[0023] That is, the composition of the present disclosure preferably contains two or more compounds (1) each having a different group T. Hereinafter, a composition containing two or more compounds (1) each having a different group T will also be referred to as a "first composition." According to the first composition, by containing two or more compounds (1) each having a different group T, a surface treatment layer having a good balance of antifouling properties, fingerprint removability, and slipperiness can be formed.

[0024] The first composition may contain two or more types of compound (1) each having a different group T, and may contain three or more types of compound (1) each having a different group T. That is, the first composition may further contain a third compound in addition to the first compound and the second compound, where the third compound is compound (1) and the group T of the third compound is different from the group T of the first compound and the group T of the second compound.

[0025] The composition of the present disclosure is a compound in which a first compound and a second compound are bonded to each other, and Y in formula (A) in the first compound is １ and Y in formula (A) in the second compound １ In other words, the compositions of the present disclosure are preferably such that the groups Y １ It is preferable that the compound (A) contains two or more compounds having different groups Y. １ A composition containing two or more compounds (A) having different structures is also referred to as a "second composition."

[0026] The second composition is a compound in which the groups Y １ The second composition may contain two or more compounds (A) having different groups T and Y. １ at least one of the compounds (A) is different from each other, and two or more of the compounds (A) have a group Y １ That is, the second composition further includes a third compound in addition to the first compound and the second compound, the third compound is compound (A), and the groups T and Y of the third compound are different from each other. １ at least one of the groups T and Y of the third compound is different from that of the first compound; １ At least one of the compounds may be different from the second compound.

[0027] Each component contained in the composition of the present disclosure will be described in detail below.

[0028] <Compound (1)> Compound (1) contained in the first composition, which is an example of the composition of the present disclosure, will be described.

[0029] (Group T) T in formula (1) is a monovalent group. Examples of the monovalent group represented by T in formula (1) include a methyl group, a linear alkyl group having 2 or more carbon atoms (hereinafter also simply referred to as a "linear alkyl group"), an alkyl group having 3 or more carbon atoms and having at least one of a branched structure and a cyclic structure (hereinafter also referred to as a "branched cyclic alkyl group"), a group represented by formula (2A) (hereinafter also referred to as "group (2A)"), and a group represented by formula (2B) (hereinafter also referred to as "group (2B)"). [R １１ -(Si(R １２ ) ２ -O) ｍ１ ] ３ Si—O—* １ ... (2A) R １３ -O-* １ ...(2B) In formulas (2A) to (2B), R １１ are each independently a monovalent hydrocarbon group or a group R １４ ３ Si—O—* ２ and the three R １１ Two or more of the following are R １４ ３ Si—O—* ２ and R １４ are each independently a monovalent hydrocarbon group or a trialkylsilyloxy group, ２ is the bonding site to the silicon atom in formula (2A), and R １２ are each independently a monovalent hydrocarbon group, m1 is each independently a number of 0 or more, R １３ is a monovalent cyclic polysiloxane residue or a monovalent cage-like polysiloxane residue, １ is the bonding site to the silicon atom in formula (1).

[0030] The methyl group, linear alkyl group, and branched cyclic alkyl group represented by T in formula (1) are all unsubstituted alkyl groups. The linear alkyl group may have 2 to 20 carbon atoms, preferably 2 to 10, more preferably 2 to 6, and particularly preferably 2 to 4. The branched cyclic alkyl group may be an alkyl group having a branched structure but not a cyclic structure, an alkyl group having a cyclic structure but not a branched structure other than the cyclic structure, or an alkyl group having both a cyclic structure and a branched structure other than the cyclic structure. Hereinafter, an alkyl group having a branched structure but not a cyclic structure will also be referred to as a "branched alkyl group." Furthermore, an alkyl group having a cyclic structure but not a branched structure other than the cyclic structure, and an alkyl group having both a cyclic structure and a branched structure other than the cyclic structure will also be collectively referred to as a "cyclic alkyl group." The branched alkyl group may have 3 to 20 carbon atoms, preferably 3 to 10, and more preferably 3 to 6. The cyclic alkyl group may have 3 to 20 carbon atoms, preferably 3 to 10, and more preferably 4 to 8. Examples of the cyclic alkyl group include a cycloalkyl group, a cycloalkylalkylene group, and an alkylcycloalkylene group.

[0031] R in formula (2A) １１ , R １２ , or R １４ Examples of the monovalent hydrocarbon group represented by the formula (2A) include an aliphatic hydrocarbon group and an aromatic hydrocarbon group. Among these, the hydrocarbon group is preferably an aliphatic hydrocarbon group, and more preferably an alkyl group. The alkyl group may be any of a linear alkyl group, a branched alkyl group, and a cyclic alkyl group, but a linear alkyl group is preferred, and a methyl group, an ethyl group, an n-propyl group, or an n-butyl group is more preferred, and a methyl group is even more preferred. R in formula (2A) １４The alkyl group contained in the trialkylsilyloxy group represented by the formula (2A) may be any of a linear alkyl group, a branched alkyl group, and a cyclic alkyl group, but a linear alkyl group is preferred, and a methyl group, an ethyl group, an n-propyl group, or an n-butyl group is more preferred, and a methyl group is even more preferred. When two or more trialkylsilyloxy groups are present in formula (2A), the two or more alkylsilyloxy groups may be the same or different from each other, but from the viewpoint of ease of production, they are preferably the same. In formula (2A), m1 is a number of 0 or more, and examples thereof include numbers from 0 to 6, preferably 0 to 3, more preferably 0 to 1, and even more preferably 0. In formula (2A), n1 is an integer of 2 to 3, and 3 is preferred.

[0032] Examples of the group (2A) include groups (2A-1) to (2A-8). In the following formulas (2A-1) to (2A-8), R １２ and m1 are R in formula (2A), １２ In the following formulae (2A-1) to (2A-8), R １５ and R １６ are each independently a monovalent hydrocarbon group, and specific and preferred examples are R １１ , R １２ , or R １４ In the following formulae (2A-1) to (2A-8), R １７ are each independently a trialkylsilyloxy group, and specific and preferred examples of the alkyl group contained in the trialkylsilyloxy group are R １４ In the following formulae (2A-1) to (2A-8), * is the same as the alkyl group contained in the trialkylsilyloxy group represented by the formula (2A-1) to (2A-8). １ are * in formula (2A), respectively. １ is synonymous with.

[0033] (R １５ ３ Si—O) ２ R １６ Si—O—* １ ...(2A-1) (R １５ ３ Si—O) ３Si—O—* １ ...(2A-2) (R １７ ３ Si—O) ２ R １６ Si—O—* １ ...(2A-3) (R １７ ３ Si—O) ３ Si—O—* １ ...(2A-4) (R １７ ２ R １５ Si—O) ２ R １６ Si—O—* １ ...(2A-5) (R １７ ２ R １５ Si—O) ３ Si—O—* １ ...(2A-6) [R １７ ３ Si-O-(Si(R １２ ) ２ -O) ｍ１ ] ２ R １６ Si—O—* １ ...(2A-7) [R １７ ３ Si-O-(Si(R １２ ) ２ -O) ｍ１ ] ３ Si—O—* １ ... (2A-8)

[0034] Specific examples of the group (2A) include the following groups. The group (2A) is not limited to these specific examples. In the following formula, * １ are * in formula (2A), respectively. １ is synonymous with.

[0035]

[0036] Among the groups (2A-1) to (2A-8), the groups (2A-1), (2A-2), (2A-3), and (2A-4) are preferred as the group (2A). Among the groups (2A-1), (2A-2), (2A-3), and (2A-4), R １５ and R １６are all methyl groups, that is, groups (2A-1-1), (2A-2-1), (2A-3-1), and (2A-4-1) are more preferred. Among groups (2A-1) and (2A-2), groups where R １５ are both methyl groups, that is, groups (2A-1-1) and (2A-2-1).

[0037] R in formula (2B) １３ Examples of the monovalent cyclic polysiloxane residue represented by the formula (T1) include a group represented by the following formula (T1): ３ each independently represents a hydrocarbon group, a hydrocarbon group having a substituent, or —O—SiR ５１ ３ where s is an integer of 1 to 4. ５１ are each independently a hydrocarbon group or a trialkylsilyloxy group. * represents a bonding site to an adjacent atom.

[0038]

[0039] R in formula (T1) ３ Examples of the hydrocarbon group represented by the formula (I) include an aliphatic hydrocarbon group and an aromatic hydrocarbon group. Among these, the hydrocarbon group is preferably an aliphatic hydrocarbon group, and more preferably an alkyl group.

[0040] The alkyl group may be any of a linear alkyl group, a branched alkyl group, and a cyclic alkyl group, but a linear alkyl group is preferred. The number of carbon atoms in the alkyl group is preferably 1 to 10, more preferably 1 to 8, and even more preferably 1 to 4. Specifically, R ３ The alkyl group represented by the formula (I) is preferably a methyl group, an ethyl group, an n-propyl group, an n-butyl group, an isobutyl group, or a heptyl group, more preferably a methyl group, an ethyl group, an n-propyl group, or an n-butyl group, and even more preferably a methyl group.

[0041] R in formula (T1) ３Examples of the hydrocarbon group contained in the hydrocarbon group having a substituent represented by the formula (I) include an aliphatic hydrocarbon group and an aromatic hydrocarbon group. Among these, the hydrocarbon group is preferably an aliphatic hydrocarbon group, and more preferably an alkyl group. The alkyl group may be any of a linear alkyl group, a branched alkyl group, and a cyclic alkyl group, but a linear alkyl group is preferred. The number of carbon atoms in the alkyl group contained in the substituted alkyl group is preferably 1 to 10, more preferably 1 to 8, and even more preferably 2 to 4.

[0042] R in formula (T1) ３ Examples of the substituent in the hydrocarbon group having a substituent represented by the formula: include a halogen atom, a hydroxyl group, an alkoxy group, a trialkylsilyl ether group, a trialkylsilyl group, an amino group, a nitro group, a cyano group, a sulfonyl group, a trifluoromethyl group, and —SiR ５２ ３ R ５２ are each independently a hydrocarbon group or a trialkylsilyloxy group.

[0043] R ５２ The hydrocarbon group represented by R ３ The hydrocarbon groups represented by R ５２ The alkyl group contained in the trialkylsilyloxy group represented by the formula (I) may be any of a linear alkyl group, a branched alkyl group, and a cyclic alkyl group, but a linear alkyl group is preferred. The alkyl group preferably has 1 to 10 carbon atoms, more preferably 1 to 8, even more preferably 1 to 4, and particularly preferably 1. The three alkyl groups contained in the trialkylsilyloxy group may be the same or different from each other.

[0044] The Three Rs ５２ may be the same or different from each other, but from the viewpoint of ease of production, it is preferable that they are the same.

[0045] R in formula (T1) ３ -O-SiR ５１ ３ In the group represented by ５１are each independently a hydrocarbon group or a trialkylsilyloxy group. ５１ The hydrocarbon group represented by R ３ The hydrocarbon groups represented by R ５１ The trialkylsilyloxy group represented by R ５２ Examples include the same as the trialkylsilyloxy group represented by the following formula:

[0046] A plurality of R in formula (T1) ３ may be the same or different from each other, but from the viewpoint of ease of production, it is preferable that they are the same.

[0047] Examples of the monovalent cyclic polysiloxane residue include the following groups: In the following formula, * represents a bonding site with an adjacent atom.

[0048]

[0049]

[0050] R in formula (2B) １３ Examples of the monovalent cage-like polysiloxane residue represented by the formula (T2) include a group represented by the following formula (T2): ４ are each independently a hydrocarbon group or a trialkylsilyloxy group. * represents a bonding site with an adjacent atom.

[0051]

[0052] R in formula (T2) ４ Examples of the hydrocarbon group represented by the formula (I) include an aliphatic hydrocarbon group and an aromatic hydrocarbon group. Among these, the hydrocarbon group is preferably an aliphatic hydrocarbon group, and more preferably an alkyl group. The alkyl group may be any of a linear alkyl group, a branched alkyl group, and a cyclic alkyl group, but a linear alkyl group or a branched alkyl group is preferred, and a methyl group, an ethyl group, an n-propyl group, an n-butyl group, or an isobutyl group is more preferred, and an isobutyl group is even more preferred.

[0053] R in formula (T2) ４The alkyl group contained in the trialkylsilyloxy group represented by the formula (R) may be any of a linear alkyl group, a branched alkyl group, and a cyclic alkyl group, but is preferably a linear alkyl group, more preferably a methyl group, an ethyl group, an n-propyl group, or an n-butyl group, and even more preferably a methyl group. ４ is a trialkylsilyloxy group, the three alkylsilyloxy groups may be the same or different from one another, but from the viewpoint of ease of production, they are preferably the same.

[0054] Examples of the monovalent cage-like polysiloxane residue include the following groups: In the following formula, * represents a bonding site with an adjacent atom.

[0055]

[0056] T in formula (1) may be a monovalent group containing at least one selected from the group consisting of Ge and Sn to which a hydroxyl group or a hydrolyzable group is not directly bonded. The monovalent group containing at least one selected from the group consisting of Ge and Sn to which a hydroxyl group or a hydrolyzable group is not directly bonded may or may not contain Ge or Sn to which a hydroxyl group or a hydrolyzable group is directly bonded.

[0057] In one embodiment, T in formula (1) may be a group having group (c). ３１ (R ５ ) ２ -...(c) In formula (c), M ３１ is Sn or Ge, R ５ are each independently a hydrocarbon group, a trialkylsilyloxy group, or (R ７ ) ３ M ３１ O-. In formula (c), there are a plurality of M ３１ When R ７ is a hydrocarbon group, preferably an alkyl group, and preferably has 1 to 6 carbon atoms, more preferably 1 to 4 carbon atoms, and even more preferably 1 or 2 carbon atoms.

[0058] M ３１is Sn or Ge. Ge has a larger atomic size than Sn, and can further reduce the surface free energy, thereby forming a surface treatment layer with excellent fingerprint removal properties. ３１ is preferably Ge.

[0059] R ５ is a hydrocarbon group, a trialkylsilyloxy group, or (R ７ ) ３ M ３１ O-. Examples of the hydrocarbon group include an alkyl group, a cycloalkyl group, an alkenyl group, and an allyl group. From the viewpoint of ease of synthesis, a saturated hydrocarbon group is preferred, and an alkyl group is more preferred. R ５ The number of carbon atoms in —CH is preferably 1 to 6, more preferably 1 to 3, and particularly preferably —CH ３ or -CH ２ CH ３ The trialkylsilyloxy group is preferably —O—SiR ４０ ３ Preferably, R ４０ are each independently a hydrocarbon group. ４０ The hydrocarbon group in R is preferably an alkyl group or an aryl group, and more preferably an alkyl group. ４０ The number of carbon atoms in R is preferably 1 to 6, more preferably 1 to 4, and even more preferably 1 or 2. ４０ Specific examples of the hydrocarbon group in ３ , -CH ２ CH ３ , -C(CH ３ ) ３ Examples include:

[0060] The group having the group (c) is M of the group (c). ３１ Examples of the organic group include a monovalent organic group, a divalent organic group, and a combination thereof. However, the monovalent organic group is not connected to both sides. Examples of the monovalent organic group include a hydrocarbon group or a trialkylsilyloxy group. The group (c) is M ３１ (R ５ ) ３ -, M ３１ (Me) ３-, Ge(Me) ３ The divalent organic group may be a chain hydrocarbon group; a chain hydrocarbon group having at its terminal or between carbon atoms -O-, -S-, -C(=O)NH-, -NHC(=O)-, -N(R ｄ )-, -C(=O)O-, -OC(=O)-, -C(=O)S-, -SC(=O)-, -S(=O) ２ NH-, -NHS (=O) ２ -, -S(=O) ２ -, -S(=O) ２ O-, -OS (=O) ２ -, and a group having at least one selected from the group consisting of a phenylene group; and combinations thereof. ｄ is a hydrogen atom or an alkyl group (preferably having 1 to 10 carbon atoms).

[0061] From the viewpoint of obtaining a surface treatment layer having excellent antifouling properties, it is preferable that at least one group T of the compound (1) contained in the first composition is at least one selected from the group consisting of a methyl group, a group (2A), and a group (2B), more preferably at least one selected from the group consisting of a group (2A) and a group (2B), and even more preferably a group (2A). From the viewpoint of obtaining a surface treatment layer having excellent fingerprint removability, it is preferable that at least one group T of the compound (1) contained in the first composition is at least one selected from the group consisting of a methyl group, a group (2A), and a group (2B), and even more preferably a methyl group. From the viewpoint of obtaining a surface treatment layer having excellent slip properties, it is preferable that at least one group T of the compound (1) contained in the first composition is at least one selected from the group consisting of a methyl group, a linear alkyl group, and a branched cyclic alkyl group, more preferably at least one selected from the group consisting of a linear alkyl group and a branched cyclic alkyl group, and even more preferably a linear alkyl group.

[0062] Examples of combinations of the group T of the first compound and the group T of the second compound include the following combinations T2-1 to T2-14, where the group T of the first compound and the group T of the second compound are groups with different structures.

[0063]

[0064] From the viewpoint of obtaining a surface treatment layer that has excellent slip properties and a good balance of antifouling properties and fingerprint removability, it is preferable that the group T of the second compound is a methyl group, a linear alkyl group, or a branched cyclic alkyl group. In the embodiment in which the group T of the second compound is a methyl group, a linear alkyl group, or a branched cyclic alkyl group, examples of combinations of the group T of the first compound and the group T of the second compound include combinations T2-1 to T2-11, and among these, combinations T2-1 to T2-4, T2-7 to T2-8, and T2-10 to T2-11 are preferred, and combinations T2-1, T2-2, T2-3, T2-7, and T2-10 are more preferred, and combinations T2-1, T2-3, and T2-7 are even more preferred.

[0065] From the viewpoint of obtaining a surface treatment layer that has excellent antifouling properties and also a well-balanced combination of fingerprint removability and slip properties, it is preferable that the group T of the first compound is the group (2A) or the group (2B). In the embodiment in which the group T of the first compound is the group (2A) or the group (2B), combinations of the group T of the first compound and the group T of the second compound include combinations T2-3 to T2-4, T2-7 to T2-8, and T2-10 to T2-14, and among these, combinations T2-3 to T2-4, T2-7 to T2-8, and T2-10 to T2-11 are preferred, and combinations T2-3, T2-7, and T2-10 are more preferred.

[0066] From the viewpoint of obtaining a surface treatment layer having a good balance of antifouling properties, fingerprint removability, and slip properties, it is preferred that the group T of the first compound is group (2A) or group (2B), and the group T of the second compound is a methyl group, a linear alkyl group, or a branched cyclic alkyl group. Examples of combinations of the group T of the first compound and the group T of the second compound in the above embodiment include combinations T2-3 to T2-4, T2-7 to T2-8, and T2-10 to T2-11, and among these, combinations T2-3, T2-7, and T2-10 are preferred, and combinations T2-3 and T2-7 are more preferred.

[0067] Among the combinations T2-3 and T2-7, it is preferable that the group T of the first compound is the group (2A-1) or the group (2A-2) and the group T of the second compound is a methyl group or a linear alkyl group, it is more preferable that the group T of the first compound is the group (2A-1-1) or the group (2A-2-1) and the group T of the second compound is a methyl group or a linear alkyl group, it is more preferable that the group T of the first compound is the group (2A-1-1) or the group (2A-2 It is more preferable that the group T of the first compound is the group (2A-1-1) or the group (2A-2-1) and the group T of the second compound is a methyl group or a linear alkyl group having 2 to 4 carbon atoms; it is particularly preferable that the group T of the first compound is the group (2A-1-1) or the group (2A-2-1) and the group T of the second compound is a methyl group or an n-butyl group; and it is extremely preferable that the group T of the first compound is the group (2A-1-1) or the group (2A-2-1) and the group T of the second compound is a methyl group.

[0068] When the first composition further contains a third compound, examples of combinations of the group T of the first compound with the group T of the second compound and the group T of the third compound include the following combinations T3-1 to T3-7, where the group T of the third compound is a group whose structure is different from the group T of the first compound and the group T of the second compound.

[0069]

[0070] From the viewpoint of obtaining a surface treatment layer that has excellent antifouling properties and a good balance of fingerprint removability and slip properties, the combination of the first compound, the second compound, and the third compound is preferably combination T3-2. Among the combinations of the first compound, the second compound, and the third compound in combination T3-2, the combination of combination T2-7 and a methyl group and the combination of combination T2-8 and a methyl group are preferred, and the combination of combination T2-7 and a methyl group is more preferred.

[0071] Among the combinations of T2-7 and methyl groups, it is preferable that the group T of the first compound is the group (2A-1) or the group (2A-2), the group T of the second compound is a linear alkyl group, and the group T of the third compound is a methyl group; it is more preferable that the group T of the first compound is the group (2A-1-1) or the group (2A-2-1), the group T of the second compound is a linear alkyl group, and the group T of the third compound is a methyl group; it is even more preferable that the group T of the first compound is the group (2A-1-1) or the group (2A-2-1), the group T of the second compound is a linear alkyl group having 2 to 4 carbon atoms, and the group T of the third compound is a methyl group; and it is particularly preferable that the group T of the first compound is the group (2A-1-1) or the group (2A-2-1), the group T of the second compound is an n-butyl group, and the group T of the third compound is a methyl group.

[0072] (Group R １ and m) R in formula (1) １ are each independently a monovalent hydrocarbon group. １ Examples of the monovalent hydrocarbon group represented by the formula (1) include an aliphatic hydrocarbon group and an aromatic hydrocarbon group. Among them, the monovalent hydrocarbon group is preferably an aliphatic hydrocarbon group, and more preferably an alkyl group. The alkyl group may be any of a linear alkyl group, a branched alkyl group, and a cyclic alkyl group, but a linear alkyl group is preferred, and a methyl group, an ethyl group, an n-propyl group, or an n-butyl group is more preferred, and a methyl group is even more preferred. Furthermore, a phenyl group is preferred as the aromatic hydrocarbon group. １ may all be the same group, or some of them may be different groups. In the embodiment where some of them are different groups, (2m+1) R １ In one embodiment, a part of the alkyl groups is an n-butyl group and the rest is a methyl group.

[0073] The group R in the first compound １ and the group R in the second compound １ may be the same or different, and from the viewpoint of improving the balance of antifouling property, fingerprint removability, and slipperiness, the group R１ and the group R in the second compound １ When the first composition contains a third compound, the group R １ and the group R in the second compound １ and the group R in the third compound １ The groups R in the first compound may all be the same, only two of them may be the same, or they may all be different. １ and the group R in the second compound １ and the group R in the third compound １ and are preferably the same from the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slipperiness.

[0074] In formula (1), m is a number of 1 or more, preferably 1 to 600, more preferably 1 to 500, even more preferably 3 to 500, particularly preferably 9 to 50, extremely preferably 11 to 30, and most preferably 11 to 25. In another embodiment, m in formula (1) is preferably 1 to 10, more preferably 1 to 4. m in the first compound and m in the second compound may be the same as or different from each other. When the first composition contains a third compound, m in the first compound, m in the second compound, and m in the third compound may all be the same as each other, or only two of them may be the same as each other, or they may all be different from each other.

[0075] (Group R ２ , groups L, n, and q) R in formula (1) ２ are each independently a monovalent hydrocarbon group. ２ The monovalent hydrocarbon group represented by R is preferably a monovalent saturated hydrocarbon group. ２ The number of carbon atoms is preferably 1 to 6, more preferably 1 to 3, and even more preferably 1 or 2.

[0076] Each L in formula (1) is independently a hydrolyzable group, a group having a hydrolyzable group, or a hydroxyl group. A hydrolyzable group is a group that becomes a hydroxyl group through a hydrolysis reaction. That is, a hydrolyzable silyl group represented by Si-L (L is a hydrolyzable group) becomes a silanol group represented by Si-OH through a hydrolysis reaction. The silanol groups further react with each other to form Si-O-Si bonds. Furthermore, the silanol groups can undergo a dehydration condensation reaction with silanol groups derived from oxides present on the surface of the substrate to form Si-O-Si bonds.

[0077] Examples of the hydrolyzable group include an alkoxy group, an aryloxy group, a halogen atom, an acyl group, an acyloxy group, an amino group, and —O—N═CR ｒ ２ and an isocyanato group (-NCO). The alkoxy group is preferably an alkoxy group having 1 to 4 carbon atoms. The aryloxy group is preferably an aryloxy group having 3 to 10 carbon atoms. However, the aryl group of the aryloxy group includes a heteroaryl group. The halogen atom is preferably a chlorine atom. The acyl group is preferably an acyl group having 1 to 6 carbon atoms. The acyloxy group is preferably an acyloxy group having 1 to 6 carbon atoms. R ｒ are each independently an alkyl group having 1 to 10 carbon atoms.

[0078] Examples of the group having a hydrolyzable group include the groups having a hydrolyzable group exemplified above, such as a group in which a hydrolyzable group is bonded to a linking group. Examples of the linking group include an alkylene group, -O-, and a combination thereof. Examples of the group having a hydrolyzable group include -O-L Ａ -L Ｂ is preferred. Ａ is an alkylene group, and L Ｂ is a hydrolyzable group. The alkylene group preferably has 1 to 10 carbon atoms. Ｂ The hydrolyzable group represented by the following formula has the same meaning as the hydrolyzable group described above, and the preferred embodiments are also the same. Ａ -L ＢExamples of the alkoxyalkyleneoxy group include an alkoxyalkyleneoxy group. The alkoxyalkyleneoxy group is preferably a group in which an alkoxy group having 1 to 4 carbon atoms is bonded to a carbon atom of an alkyleneoxy group having 1 to 10 carbon atoms. Specific examples of the alkoxyalkyleneoxy group include a 2-methoxyethoxy group.

[0079] In terms of ease of production of the compound, L in formula (1) is preferably an alkoxy group having 1 to 4 carbon atoms or a halogen atom. In terms of less outgassing during coating and better storage stability of the compound, L is preferably an alkoxy group having 1 to 4 carbon atoms, and more preferably an ethoxy group or a methoxy group.

[0080] The group L in the first compound and the group L in the second compound may be the same or different from each other, and from the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slippage, it is preferable that the group L in the first compound and the group L in the second compound are the same. When the first composition contains a third compound, the group L in the first compound, the group L in the second compound, and the group L in the third compound may all be the same, or only two of them may be the same, or they may all be different from each other. It is preferable that the group L in the first compound, the group L in the second compound, and the group L in the third compound are all the same from the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slippage.

[0081] In formula (1), n ​​is each independently an integer of 0 to 2, preferably 0 or 1, and more preferably 0. The presence of multiple Ls strengthens the adhesion of the surface treatment layer to the substrate. n in the first compound and n in the second compound may be the same or different from each other. From the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slippage, it is preferable that n in the first compound and n in the second compound are the same. When the first composition contains a third compound, n in the first compound, n in the second compound, and n in the third compound may all be the same, or only two of them may be the same, or they may all be different from each other. n in the first compound, n in the second compound, and n in the third compound are all preferably the same from the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slippage.

[0082] When n is 1 or less, the plurality of L's present in one molecule may be the same or different from each other. From the viewpoint of availability of raw materials and ease of production of the compound, it is preferable that the plurality of L's are the same. When n is 2, the plurality of R's present in one molecule may be different from each other. ２ may be the same or different from each other. From the viewpoint of availability of raw materials and ease of production of the compound, it is preferable to use a plurality of R ２ are preferably the same.

[0083] The group R in the first compound ２ and the group R in the second compound ２ may be the same or different, and from the viewpoint of improving the balance of antifouling property, fingerprint removability, and slipperiness, the group R ２ and the group R in the second compound ２ When the first composition contains a third compound, the group R ２ and the group R in the second compound ２ and the group R in the third compound ２The groups R in the first compound may all be the same, only two of them may be the same, or they may all be different. ２ and the group R in the second compound ２ and the group R in the third compound ２ and are preferably the same from the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slipperiness.

[0084] Hereinafter, [—Si(R ２ ) ｎ L ３－ｎ ] is also referred to as a "reactive silyl group". From the viewpoint of excellent uniformity and durability of the surface treatment layer, the reactive silyl group is preferably an alkoxysilyl group or a trichlorosilyl group. From the viewpoint of ease of handling of by-products generated in the reaction with the substrate, the reactive silyl group is more preferably an alkoxysilyl group. As the alkoxysilyl group, a dialkoxysilyl group or a trialkoxysilyl group is preferred, and a trialkoxysilyl group is more preferred.

[0085] When a molecule contains a plurality of reactive silyl groups, the plurality of reactive silyl groups may be the same or different from each other. From the viewpoints of availability of raw materials and ease of production of the compound, it is preferable that the plurality of reactive silyl groups are the same.

[0086] The reactive silyl group in the first compound and the reactive silyl group in the second compound may be the same or different from each other, and from the viewpoint of improving the balance between antifouling properties, fingerprint removability, and smoothness, it is preferable that the reactive silyl group in the first compound and the reactive silyl group in the second compound are the same. When the first composition contains a third compound, the reactive silyl group in the first compound, the reactive silyl group in the second compound, and the reactive silyl group in the third compound may all be the same, or only two of them may be the same, or they may all be different from each other. It is preferable that the reactive silyl group in the first compound, the reactive silyl group in the second compound, and the reactive silyl group in the third compound are all the same from the viewpoint of improving the balance between antifouling properties, fingerprint removability, and smoothness.

[0087] In formula (1), q is an integer of 1 or greater. From the viewpoint of achieving better abrasion resistance of the surface treatment layer, q is preferably 1 to 18, more preferably 1 to 12, even more preferably 1 to 8, particularly preferably 1 to 6, and extremely preferably 1 to 4. In one embodiment, q is preferably 2 to 18, more preferably 2 to 12, even more preferably 2 to 8, and particularly preferably 2 to 6. q in the first compound and q in the second compound may be the same or different from each other. From the viewpoint of improving the balance of antifouling properties, fingerprint removability, and slip properties, q in the first compound and q in the second compound are preferably the same. When the first composition contains a third compound, q in the first compound, q in the second compound, and q in the third compound may all be the same, or only two of them may be the same, or they may all be different from each other. From the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slip properties, it is preferable that q in the first compound, q in the second compound, and q in the third compound are all the same.

[0088] (Group A) Examples of the (q+1)-valent linking group represented by A in formula (1) include the (q+1)-valent linking group represented by the following (3): ３ -(Ak １ )ｋ１１ -(Ak ２ ) ｋ１２ -A １１ -* ４ ...(3) In formula (3), Ak １ is an alkylene chain, Ak ２ is a phenylene group, １１ represents a single bond or a (q+1)-valent linking group, k11 and k12 each independently represent 0 or 1, ３ is Si(R １ ) ２ is the binding site for * ４ is Si(R ２ ) ｎ L ３－ｎ It is the binding site for

[0089] A in formula (3) １ The number of carbon atoms in the alkylene chain represented by the formula (3) is preferably 1 to 30, more preferably 1 to 20, still more preferably 4 to 20, and particularly preferably 5 to 15. ２ The phenylene group represented by the formula (3) may be any of an o-phenylene group, an m-phenylene group, and a p-phenylene group, and is preferably a p-phenylene group. k11 in the formula (3) is preferably 1. k12 in the formula (3) is preferably 0. When both k11 and k12 in the formula (3) are 0, A １１ is a (q+1)-valent linking group. When q in formula (1) is an integer of 1 or more, A １１ is a (q+1)-valent linking group.

[0090] A in formula (3) １１ The (q+1)-valent linking group represented by the formula (3-1A), formula (3-1B), and formulas (3-1A-1) to (3-1A-7) may be any group as long as it does not impair the effects of the present disclosure, and examples thereof include alkylene groups which may have an etheric oxygen atom or a divalent organopolysiloxane residue, carbon atoms, nitrogen atoms, silicon atoms, divalent to octavalent organopolysiloxane residues, and Si(R ２ ) ｎ L ３－ｎ Examples include groups excluding A １１may contain a triptycene structure. The triptycene structure refers to a partial structure obtained by removing two or more hydrogen atoms from triptycene.

[0091] Also, A １１ may be any of the groups (g2-1) to (g2-14) described below.

[0092] -A １１ -(Si(R ２ ) ｎ L ３－ｎ ) ｑ The group represented by the formula (3-1A) is preferably the group (3-1A) or the group (3-1B), and more preferably the group (3-1A).

[0093] -Q ａ -X ３１ (-Q ｂ -Si(R ２ ) ｎ L ３－ｎ ) ｈ (-R ３１ ) ｉ …(3-1A) -Q ｃ - [CH ２ C (R ３２ ) (-Q ｄ -Si(R ２ ) ｎ L ３－ｎ )] ｙ -R ３３ ...(3-1B) In addition, in the formula (3-1A) and the formula (3-1B), R ２ , L, and n are defined as above.

[0094] In formula (3-1A), Q ａ is a single bond or a divalent linking group. However, when k11 is 1 and k12 is 0 in formula (3), Q ａ Ak １ The terminal on the side bonding to is not an alkylene group. Examples of the divalent linking group include a divalent hydrocarbon group, a divalent heterocyclic group, —O—, —S—, and —SO ２ -, -N(R ｄ )-, -C(O)-, -Si(R ａ ) ２- and groups obtained by combining two or more of these. The divalent hydrocarbon group may be a divalent saturated hydrocarbon group, a divalent aromatic hydrocarbon group, an alkenylene group, or an alkynylene group. The divalent saturated hydrocarbon group may be linear, branched, or cyclic, and examples thereof include alkylene groups. The alkylene group preferably has 1 to 30 carbon atoms, more preferably 1 to 20, even more preferably 4 to 20, and particularly preferably 5 to 15. Furthermore, the divalent aromatic hydrocarbon group preferably has 5 to 20 carbon atoms, and examples thereof include a phenylene group. In addition, the group may be an alkenylene group having 2 to 20 carbon atoms or an alkynylene group having 2 to 20 carbon atoms. The R ａ is an alkyl group (preferably having 1 to 10 carbon atoms) or a phenyl group. ｄ is a hydrogen atom or an alkyl group (preferably having 1 to 10 carbon atoms). Examples of groups formed by combining two or more of these groups include -OC(O)-, -C(O)O-, -C(O)S-, and -C(O)N(R ｄ ) -, -N(R ｄ )C(O)-,-N(R ｄ )C(O)N(R ｄ ) -, -N(R ｄ )C(O)O-, -OC(O)N(R ｄ ) -, -SO ２ N (R ｄ ) -, -N(R ｄ ) SO ２ -, -C(O)N(R ｄ an alkylene group having —N(R ｄ )C(O)-, an alkylene group having —OC(O)N(R ｄ an alkylene group having —OC(O)—, an alkylene group having —C(O)O—, an alkylene group having —C(O)S—, an alkylene group having —N(R ｄ an alkylene group having —N(R ｄ )C(O)N(R ｄ an alkylene group having —SO ２ N (R ｄ )-, an alkylene group having an alkylene group -Si(R ａ )２ -phenylene group -Si(R ａ ) ２ Examples include:

[0095] Among them, when k11 in formula (3) is 1 and k12 is 0, Q ａ represents a divalent hydrocarbon group other than an alkylene group, a divalent heterocyclic group, —O—, —S—, —SO ２ -, -N(R ｄ )-, -C(O)-, -Si(R ａ ) ２ -, -OC(O)-, -C(O)O-, -C(O)S-, -C(O)N(R ｄ ) -, -N(R ｄ )C(O)-,-N(R ｄ )C(O)N(R ｄ ) -, -N(R ｄ )C(O)O-, -OC(O)N(R ｄ ) -, -SO ２ N (R ｄ ) -, -N(R ｄ ) SO ２ -, -C(O)N(R ｄ an alkylene group having —N(R ｄ )C(O)-, an alkylene group having —OC(O)N(R ｄ an alkylene group having —OC(O)—, an alkylene group having —C(O)O—, an alkylene group having —C(O)S—, an alkylene group having —N(R ｄ an alkylene group having —N(R ｄ )C(O)N(R ｄ )- or -SO ２ N (R ｄ )- is preferred, and an alkylene group having —OC(O)—, —C(O)N(R ｄ )-, an alkylene group having —OC(O)N(R ｄ an alkylene group having —C(O)O—, an alkylene group having —C(O)S—, an alkylene group having —N(R ｄ an alkylene group having —N(R ｄ)C(O)N(R ｄ An alkylene group having —C(O)O— or —C(O)N(R ｄ Alkylene groups having the formula (I)- are more preferred.

[0096] When k11 and k12 in formula (3) are both 0, Q ａ represents a divalent hydrocarbon group other than an alkylene group, a divalent heterocyclic group, or —SO ２ -, -C(O)-, -Si(R ａ ) ２ -, -C(O)O-, -C(O)S-, -C(O)N(R ｄ ) -, -SO ２ N (R ｄ )-, -C(O)N(R ｄ an alkylene group having —C(O)O—, or —SO ２ N (R ｄ An alkylene group having —C(O)— is preferred, and —C(O)— is more preferred.

[0097] When k12 in formula (3) is 1, Q ａ represents a divalent hydrocarbon group other than an alkylene group, a divalent heterocyclic group, —O—, —S—, —SO ２ -, -N(R ｄ )-, -C(O)-, -Si(R ａ ) ２ -, -OC(O)-, -C(O)O-, -C(O)S-, -C(O)N(R ｄ ) -, -N(R ｄ )C(O)-,-N(R ｄ )C(O)N(R ｄ ) -, -N(R ｄ )C(O)O-, -OC(O)N(R ｄ ) -, -SO ２ N (R ｄ ) -, -N(R ｄ ) SO ２ -, -C(O)N(R ｄ an alkylene group having —N(R ｄ )C(O)-, an alkylene group having —OC(O)N(R ｄan alkylene group having —OC(O)—, an alkylene group having —C(O)O—, an alkylene group having —C(O)S—, an alkylene group having —N(R ｄ an alkylene group having —N(R ｄ )C(O)N(R ｄ )- or -SO ２ N (R ｄ )- is preferred, and an alkylene group having —OC(O)—, —C(O)N(R ｄ )-, an alkylene group having —OC(O)N(R ｄ an alkylene group having —C(O)O—, an alkylene group having —C(O)S—, an alkylene group having —N(R ｄ an alkylene group having —N(R ｄ )C(O)N(R ｄ An alkylene group having —C(O)O— or —C(O)N(R ｄ Alkylene groups having the formula (I)- are more preferred.

[0098] In formula (3-1A), X ３１ represents a single bond, an alkylene group, a carbon atom, a nitrogen atom, a silicon atom, a divalent to octavalent organopolysiloxane residue, or a group having a (h+i+1)-valent ring, provided that k11 in formula (3) is 1 and k12 is 0, and Q ａ When is a single bond, X ３１ Ak １ The terminal bonded to is not an alkylene group. ａ When is a single bond, X ３１ The terminal bonded to Si in X is not a divalent linear organopolysiloxane residue. ３１The terminal of X may be an alkylene group or a divalent linear organopolysiloxane residue. The alkylene group may have -O-, a silphenylene skeleton group, a divalent organopolysiloxane residue, or a dialkylsilylene group. The alkylene group may have a plurality of groups selected from the group consisting of -O-, a silphenylene skeleton group, a divalent organopolysiloxane residue, and a dialkylsilylene group. ３１ The number of carbon atoms in the alkylene group represented by the formula (I) is preferably 1 to 20, and more preferably 1 to 10. Examples of the divalent to octavalent organopolysiloxane residue include a divalent organopolysiloxane residue and a (w2+1)-valent organopolysiloxane residue described below.

[0099] In formula (3-1A), X ３１ is a group having a (h+i+1)-valent ring, Q ａ , (-Q ｂ -Si(R ２ ) ｎ L ３－ｎ ) and R ３１ is directly bonded to an atom constituting the ring, provided that the ring is a ring other than an organopolysiloxane ring. ３１The ring in may be any of a monocycle, a fused polycycle, a bridged ring, a spiro ring, and an aggregate polycycle, and the atoms constituting the ring may be a carbocycle consisting of only carbon atoms, or a heterocycle consisting of a heteroatom having a valence of divalent or higher and a carbon atom. The bond between the atoms constituting the ring may be a single bond or a multiple bond. Furthermore, the ring may be an aromatic ring or a non-aromatic ring. As the monocycle, a 4- to 8-membered ring is preferred, and a 5- or 6-membered ring is more preferred. As the fused polycycle, a fused polycycle in which two or more 4- to 8-membered rings are fused is preferred, and a fused polycycle in which two or three rings selected from 5- and 6-membered rings are bonded, and a fused polycycle in which one or two rings selected from 5- or 6-membered rings are bonded to one 4-membered ring are more preferred. The bridged ring is preferably a bridged ring having a 5-membered or 6-membered ring as the largest ring, and the spiro ring is preferably a spiro ring consisting of two 4- to 6-membered rings. The assembled polycycle is preferably an assembled polycycle in which two or three rings selected from the 5-membered and 6-membered rings are bonded via a single bond, 1 to 3 carbon atoms, or one heteroatom having a valence of 2 or 3. In the assembled polycycle, each ring may have a Q ａ , (-Q ｂ -Si(R ２ ) ｎ L ３－ｎ ) and R ３１ (when i = 1 or more) is preferably bonded. As heteroatoms constituting the ring, nitrogen atoms, oxygen atoms, and sulfur atoms are preferred, and nitrogen atoms and oxygen atoms are more preferred. The number of heteroatoms constituting the ring is preferably 3 or less. Furthermore, when the number of heteroatoms constituting the ring is 2 or more, those heteroatoms may be different.

[0100] X ３１In terms of ease of production of the compound and further excellent abrasion resistance of the surface treatment layer, the ring in the formula (I) is preferably one selected from the group consisting of a 3- to 8-membered aliphatic ring, a benzene ring, a 3- to 8-membered heterocyclic ring, a fused ring in which two or three of these rings are fused, a bridged ring in which the largest ring is a 5- or 6-membered ring, and an assembled polycyclic ring having two or more of these rings and in which the linking group is a single bond, an alkylene group having 3 or less carbon atoms, an oxygen atom, or a sulfur atom. Preferred rings are a benzene ring, a 5- or 6-membered aliphatic ring, a 5- or 6-membered heterocyclic ring having a nitrogen atom or an oxygen atom, and a fused ring of a 5- or 6-membered carbocyclic ring with a 4- to 6-membered heterocyclic ring. Specific examples of the ring include the rings shown below, as well as a 1,3-cyclohexadiene ring, a 1,4-cyclohexadiene ring, an anthracene ring, a cyclopropane ring, a decahydronaphthalene ring, a norbornene ring, a norbornadiene ring, a furan ring, a pyrrole ring, a thiophene ring, a pyrazine ring, a morpholine ring, an aziridine ring, an isoquinoline ring, an oxazole ring, an isoxazole ring, a thiazole ring, an imidazole ring, a pyrazole ring, a pyran ring, a pyridazine ring, a pyrimidine ring, and an indene ring. Rings having an oxo group (═O) are also shown below.

[0101]

[0102] X ３１ The bond that does not constitute the ring of the atom that constitutes the ring in ａ , (-Q ｂ -Si(R ２ ) ｎ L ３－ｎ ) or R ３１ When there are remaining bonds, the remaining bonds are bonded to a hydrogen atom or a substituent. Examples of the substituent include a halogen atom, an alkyl group (which may contain an etheric oxygen atom between carbon atoms), a cycloalkyl group, an alkenyl group, an allyl group, an alkoxy group, and an oxo group (=O). In addition, when one of the carbon atoms constituting the ring is bonded to Q ａ , (-Q ｂ -Si(R ２ ) ｎ L ３－ｎ ) or R ３１When there are two bonds bonded to one of the carbon atoms, Q ａ and (-Q ｂ -Si(R ２ ) ｎ L ３－ｎ ) may be bonded to two (-Q ｂ -Si(R ２ ) ｎ L ３－ｎ ) may be bonded to ａ and (-Q ｂ -Si(R ２ ) ｎ L ３－ｎ ) or R ３１ It is preferable that h (-Q ｂ -Si(R ２ ) ｎ L ３－ｎ ) may be bonded to different ring-constituting atoms, and two of them may be bonded to one ring-constituting carbon atom, and two (-Q ｂ -Si(R ２ ) ｎ L ３－ｎ There may be two or more ring-constituting carbon atoms to which i R ３１ may be bonded to different ring-constituting atoms, two of which may be bonded to one ring-constituting carbon atom, and two R ３１ There may be two or more ring-constituting carbon atoms to which is bonded.

[0103] Among them, X ３１ From the viewpoint of improving the abrasion resistance of the surface treatment layer, is preferably a carbon atom, a nitrogen atom, a silicon atom, a tetravalent to octavalent organopolysiloxane residue, or a group having a (h+i+1)-valent ring, and more preferably a carbon atom.

[0104] In formula (3-1A), Q ｂ is a single bond or a divalent linking group. The definition of a divalent linking group is the same as that of Q ａ However, in the formula (3), k11 is 1, k12 is 0, and Q ａ and X ３１ If is a single bond, Q ｂ Ak １The terminal bonded to Q is not an alkylene group. ｂ may be terminated with an alkylene group.

[0105] Among them, Q ｂ is preferably an alkylene group which may have an etheric oxygen atom. The number of carbon atoms in the alkylene group is preferably 1 to 30, more preferably 1 to 20, and even more preferably 2 to 20, and may be 2 to 10, 2 to 6, or 2 to 5. Examples include 2, 3, 8, 9, and 11. The number of carbon atoms may also be 1 to 10.

[0106] In formula (3-1A), R ３１ is a hydrogen atom, a hydroxyl group, or an alkyl group. The alkyl group preferably has 1 to 5 carbon atoms, more preferably 1 to 3 carbon atoms, and even more preferably 1 carbon atom.

[0107] X ３１ When X is a single bond or an alkylene group, h is 1 and i is 0; ３１ is a nitrogen atom, h is an integer of 1 to 2, i is an integer of 0 to 1, and h+i=2 is satisfied; ３１ is a carbon atom or a silicon atom, h is an integer of 1 to 3, i is an integer of 0 to 2, and h+i=3 is satisfied; ３１ When X is a divalent to octavalent organopolysiloxane residue, h is an integer of 1 to 7, i is an integer of 0 to 6, and h+i=1 to 7. ３１ is a group having a (h+i+1)-valent ring, h is an integer of 1 to 7, i is an integer of 0 to 6, and h+i=1 to 7 is satisfied. ｂ -Si(R) ｎ L ３－ｎ If there are two or more (-Q ｂ -Si(R) ｎ L ３－ｎ ) may be the same or different. ３１ If there are two or more, there are two or more (-R ３１ ) may be the same or different.

[0108] In particular, from the viewpoint of improving the abrasion resistance of the surface treatment layer, i is preferably 0.

[0109] In formula (3-1A), Q ａ , X ３１ , and Q ｂ is a single bond, at least one of k11 and k12 in formula (3) is 1, and [Si(R ２ ) ｎ L ３－ｎ ] is Ak １ Or Ak ２ directly bonded to

[0110] In formula (3-1B), Q ｃ is a single bond or a divalent linking group. However, when k11 is 1 and k12 is 0 in formula (3), Q ｃ Ak １ The terminal on the side bonding to is not an alkylene group. ａ This is the same as the definition explained in

[0111] In formula (3-1B), R ３２ is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, and is preferably a hydrogen atom in view of ease of production of the compound. As the alkyl group, a methyl group is preferred.

[0112] In formula (3-1B), Q ｄ is a single bond or an alkylene group. The number of carbon atoms in the alkylene group is preferably 1 to 10, more preferably 1 to 6. From the viewpoint of ease of production of the compound, Q ｄ is a single bond or CH ２ - is preferred.

[0113] In formula (3-1B), R ３３ is a hydrogen atom or a halogen atom, and is preferably a hydrogen atom in view of ease of producing the compound.

[0114] y is an integer of 1 to 10, preferably an integer of 1 to 6. ２ C (R ３２ ) (-Q ｄ -Si(R ２ ) ｎ L ３－ｎ ) )] may be the same or different.

[0115] As the group (3-1A), groups (3-1A-1) to (3-1A-7) are preferred.

[0116] -(X ３２ ) ｓ１ -Q ｂ１ -Si(R ２ ) ｎ L ３－ｎ ...(3-1A-1) -(X ３３ ) ｓ２ -Q ａ２ -N[-Q ｂ２ -Si(R ２ ) ｎ L ３－ｎ ] ２ ...(3-1A-2) -Q ａ３ -Si(R ｇ ) [-Q ｂ３ -Si(R ２ ) ｎ L ３－ｎ ] ２ ...(3-1A-3) -[Q ｅ ] ｓ４ -Q ａ４ -(O) ｔ４ -C[-(O) ｕ４ -Q ｂ４ -Si(R ２ ) ｎ L ３－ｎ ] ３－ｗ１ (-R ３１ ) ｗ１ ...(3-1A-4) -Q ａ５ -Si[-Q ｂ５ -Si(R ２ ) ｎ L ３－ｎ ] ３ ...(3-1A-5) -[Q ｅ ] ｖ -Q ａ６ -Z ａ [-Q ｂ６ -Si(R ２ ) ｎ L ３－ｎ ] ｗ２ ...(3-1A-6) -[Q ｅ ] ｓ４ -Q ａ４ -(O) ｔ４ -Z ｃ [-(O-Q ｂ４ ) ｕ４ -Si(R２ ) ｎ L ３－ｎ ] ｗ３ (-OH) ｗ４ ...(3-1A-7) In the formulas (3-1A-1) to (3-1A-7), R ２ The definitions of L and n are as described above. However, when k11 is 1 and k12 is 0 in the formula (3), Ak １ When k11 and k12 in formula (3) are both 0, the Si(R １ ) ２ The terminal on the side bonding to is not a divalent linear organopolysiloxane residue.

[0117] Of these, the group (3-1A) is preferably the group (3-1A-2) or the group (3-1A-4), and more preferably the group (3-1A-4).

[0118] In the group (3-1A-1), X ３２ is -O-, -S-, -N(R ｄ )-, -C(O)-, -C(O)O-, -C(O)S-, -SO ２ N (R ｄ ) -, -N(R ｄ ) SO ２ -, -N(R ｄ )C(O)-,-N(R ｄ )C(O)N(R ｄ )-,-OC(O)N(R ｄ )-, or -C(O)N(R ｄ ) - (where N in the formula is Q ｂ１ (Binds to R ｄ The definition of is as described above. s1 is 0 or 1.

[0119] Among them, when k11 in formula (3) is 1 and k12 is 0, X ３２ is -O-, -S-, -N(R ｄ )-, -C(O)-, -C(O)O-, -C(O)S-, -SO ２ N (R ｄ ) -, -N(R ｄ ) SO ２ -, -N(Rｄ )C(O)-,-N(R ｄ )C(O)N(R ｄ )-,-OC(O)N(R ｄ )- or -C(O)N(R ｄ )- is preferred, and —O—, —S—, —N(R ｄ )-, -C(O)O-, -C(O)S-, -N(R ｄ )C(O)N(R ｄ )-,-OC(O)N(R ｄ )-, or -C(O)N(R ｄ )- is more preferred, and -C(O)O- or -C(O)N(R ｄ When k11 and k12 in formula (3) are both 0, X ３２ is -O-, -S-, -N(R ｄ )-, -C(O)-, -C(O)O-, -C(O)S-, -SO ２ N (R ｄ ) -, -N(R ｄ ) SO ２ -, -N(R ｄ )C(O)-,-N(R ｄ )C(O)N(R ｄ )-,-OC(O)N(R ｄ )-, or -C(O)N(R ｄ When k12 in formula (3) is 1, X ３２ is -O-, -S-, -N(R ｄ )-, -C(O)-, -C(O)O-, -C(O)S-, -SO ２ N (R ｄ ) -, -N(R ｄ ) SO ２ -, -N(R ｄ )C(O)-,-N(R ｄ )C(O)N(R ｄ )-,-OC(O)N(R ｄ )- or -C(O)N(R ｄ )- is preferred, and —O—, —S—, —N(R ｄ )-, -C(O)O-, -C(O)S-, -N(R ｄ )C(O)N(R ｄ )-,-OC(O)N(R ｄ )-, or -C(O)N(Rｄ )- is more preferred, and -C(O)O- or -C(O)N(R ｄ )- is more preferred

[0120] Q ｂ１ is a single bond or an alkylene group. The alkylene group may have -O-, a silphenylene skeletal group, or a dialkylsilylene group. The alkylene group may have a plurality of groups selected from the group consisting of -O-, a silphenylene skeletal group, a divalent organopolysiloxane residue, and a dialkylsilylene group. When the alkylene group has -O-, a silphenylene skeletal group, a divalent organopolysiloxane residue, or a dialkylsilylene group, it is preferable that these groups be present between carbon atoms. Q ｂ１ The number of carbon atoms in the alkylene group represented by the formula (I) is preferably 1 to 30, more preferably 1 to 20, still more preferably 2 to 20, and particularly preferably 2 to 6. The number of carbon atoms may also be 1 to 10.

[0121] Among them, when k11 in formula (3) is 1 and k12 is 0, s1 is 0, and Q ｂ１ is a single bond, or s1 is 1 and Q ｂ１ is preferably an alkylene group having 2 to 6 carbon atoms. When k11 and k12 in formula (3) are both 0, s1 is 1, and Q ｂ１ is preferably an alkylene group having 2 to 6 carbon atoms. When k12 in formula (3) is 1, s1 is 0, and Q ｂ１ is a single bond, or s1 is 1 and Q ｂ１ is preferably an alkylene group having 2 to 6 carbon atoms.

[0122] Specific examples of the group (3-1A-1) include the following groups: In the following formula, * represents a bonding site to an adjacent atom.

[0123]

[0124]

[0125] In the group (3-1A-2), X ３３ is -O-, -S-, -N(R ｄ)-, -C(O)-, -C(O)O-, -C(O)S-, -SO ２ N (R ｄ ) -, -N(R ｄ ) SO ２ -, -N(R ｄ )C(O)-,-N(R ｄ )C(O)N(R ｄ )-,-OC(O)N(R ｄ )-, or -C(O)N(R ｄ )-. R ｄ The definition of is as described above. s2 is 0 or 1. s2 is preferably 0 in view of ease of production of the compound.

[0126] Among them, when k11 is 1 and k12 is 0 in the formula (3), or when k11 and k12 are both 0, X ３３ is -O-, -S-, -N(R ｄ )-, -C(O)-, -C(O)O-, -C(O)S-, -SO ２ N (R ｄ ) -, -N(R ｄ ) SO ２ -, -N(R ｄ )C(O)-,-N(R ｄ )C(O)N(R ｄ )-,-OC(O)N(R ｄ )- or -C(O)N(R ｄ When k12 in formula (3) is 1, X ３３ is -O-, -S-, -N(R ｄ )-, -C(O)-, -C(O)O-, -C(O)S-, -SO ２ N (R ｄ ) -, -N(R ｄ ) SO ２ -, -N(R ｄ )C(O)-,-N(R ｄ )C(O)N(R ｄ )-,-OC(O)N(R ｄ )-, or -C(O)N(R ｄ )- is preferred.

[0127] Q ａ２represents a single bond, an alkylene group, -C(O)-, or an etheric oxygen atom, -C(O)-, -C(O)O-, -OC(O)-, -C(O)N(R ｄ ) -, -N(R ｄ )C(O)-,-N(R ｄ )C(O)N(R ｄ ) -, -N(R ｄ )C(O)O-, -OC(O)N(R ｄ ) -, -SO ２ N (R ｄ ) -, -N(R ｄ ) SO ２ -, -C(O)N(R ｄ )- or -NH-. ａ２ The number of carbon atoms in the alkylene group represented by the formula (I) is preferably 1 to 20, more preferably 1 to 10, even more preferably 1 to 6, and particularly preferably 1 to 3. ａ２ an etheric oxygen atom between carbon atoms of an alkylene group having two or more carbon atoms, represented by —C(O)—, —C(O)O—, —OC(O)—, —C(O)N(R ｄ ) -, -N(R ｄ )C(O)-,-N(R ｄ )C(O)N(R ｄ ) -, -N(R ｄ )C(O)O-, -OC(O)N(R ｄ ) -, -SO ２ N (R ｄ ) -, -N(R ｄ ) SO ２ -, -C(O)N(R ｄ The group having — or —NH— preferably has 2 to 10 carbon atoms, more preferably 2 to 6 carbon atoms.

[0128] Q ａ２ is preferably —C(O)— or a single bond, more preferably —C(O)—, from the viewpoint of ease of production of the compound.

[0129] Q ｂ２ is an alkylene group or a group having a divalent organopolysiloxane residue, an etheric oxygen atom, or —NH— between carbon atoms of an alkylene group having two or more carbon atoms. ｂ２The number of carbon atoms in the alkylene group represented by the formula (I) is preferably 1 to 30, more preferably 1 to 20, and even more preferably 2 to 20, and may be 2 to 10 or 2 to 6. Examples include 2, 3, 8, 9, and 11. The number of carbon atoms may also be 1 to 10. Q ｂ２ The number of carbon atoms in the divalent organopolysiloxane residue, the group having an etheric oxygen atom or an —NH— between carbon atoms of the alkylene group having 2 or more carbon atoms, represented by the following formula (I), is preferably 2 to 10, and more preferably 2 to 6.

[0130] Q ｂ２ As the compound, -CH ２ CH ２ CH ２ -, -CH ２ CH ２ OCH ２ CH ２ CH ２ - is preferred (where the right side is bonded to Si).

[0131] Two [-Q ｂ２ -Si(R ２ ) ｎ L ３－ｎ ] may be the same or different.

[0132] Specific examples of the group (3-1A-2) include the following groups. In the following formula, * represents a bonding site with an adjacent atom. In addition, in the formula, (CH ２ ) α In the formula, α is an integer representing the number of methylene groups, and is preferably 1 to 30, more preferably 1 to 20, and even more preferably 2 to 20. It may be 2 to 10, or may be 2 to 6. Examples include 2, 3, 8, 9, and 11. The number of carbon atoms may be 1 to 10. Multiple α groups contained in the same compound may be the same or different, but are preferably the same. For example, multiple α groups contained in the same compound are all 2, 3, 8, 9, and 11. The same applies hereinafter.

[0133]

[0134] In the group (3-1A-3), Q ａ３is a single bond or an alkylene group which may have an etheric oxygen atom. ａ３ The alkylene group which may have an etheric oxygen atom preferably has 1 to 10 carbon atoms, and particularly preferably has 2 to 6 carbon atoms.

[0135] R ｇ is a hydrogen atom, a hydroxyl group, or an alkyl group. ｇ From the viewpoint of ease of production of the compound, a hydrogen atom or an alkyl group is preferred. The alkyl group preferably has 1 to 10 carbon atoms, more preferably 1 to 4 carbon atoms, and further preferably is a methyl group.

[0136] Q ｂ３ Q is an alkylene group or a group having an etheric oxygen atom or a divalent organopolysiloxane residue between carbon atoms of an alkylene group having two or more carbon atoms. ｂ３ The number of carbon atoms in the alkylene group represented by the formula (I) is preferably 1 to 30, more preferably 1 to 20, and even more preferably 2 to 20, and may be 2 to 10 or 2 to 6. Examples include 2, 3, 8, 9, and 11. The number of carbon atoms may also be 1 to 10. Q ｂ３ The number of carbon atoms in the group having an etheric oxygen atom or a divalent organopolysiloxane residue between carbon atoms in the alkylene group having 2 or more carbon atoms, represented by the formula (I), is preferably 2 to 20, more preferably 2 to 10, and even more preferably 2 to 6. ｂ３ is preferably -CH ２ CH ２ -, -CH ２ CH ２ CH ２ - or -CH ２ CH ２ CH ２ CH ２ CH ２ CH ２ CH ２ CH ２ - is preferred.

[0137] Two [-Q ｂ３ -Si(R ２ ) ｎ L ３－ｎ] may be the same or different.

[0138] Specific examples of the group (3-1A-3) include the following groups: In the following formula, * represents a bonding site to an adjacent atom.

[0139]

[0140] In the group (3-1A-4), Q ｅ is -C(O)O-, -SO ２ N (R ｄ ) -, -N(R ｄ ) SO ２ -, -N(R ｄ )C(O)- or -C(O)N(R ｄ )-. R ３１ The definition of is as described above. When w1 is 1 or 2, R ３１ is preferably a hydrogen atom. s4 is 0 or 1. Q ａ４ is a single bond or an alkylene group which may have an etheric oxygen atom. The number of carbon atoms in the alkylene group which may have an etheric oxygen atom is preferably 1 to 20, more preferably 1 to 10, still more preferably 1 to 6, and particularly preferably 1 to 3. t4 is 0 or 1 (provided that Q ａ４ If -Q is a single bond, it is 0. ａ４ -(O) ｔ４ When s4 is 0, a single bond or —CH ２ O-, -CH ２ OCH ２ -, -CH ２ OCH ２ CH ２ O-, -CH ２ OCH ２ CH ２ OCH ２ -, -CH ２ OCH ２ CH ２ CH ２ CH ２ OCH ２ - is preferred (however, the left side is (XO) ｍ When s4 is 1, it is a single bond, -CH ２ -, -CH２ CH ２ - is preferred.

[0141] Q ｂ４ is an alkylene group, and the alkylene group is —O—, —C(O)N(R ｄ )-(R ｄ The definition of is as described above. ), may have a silphenylene skeleton group, a divalent organopolysiloxane residue, or a dialkylsilylene group. When the alkylene group has -O- or a silphenylene skeleton group, it is preferable that the alkylene group has -O- or a silphenylene skeleton group between carbon atoms. In addition, when the alkylene group is -C(O)N(R ｄ )-, dialkylsilylene group or divalent organopolysiloxane residue, carbon atom-carbon atom or (O) ｕ４ It is preferable that these groups are present at the end of the bond with Q. ｂ４ The number of carbon atoms in the alkylene group represented by the formula (I) is preferably 1 to 30, more preferably 1 to 20, and even more preferably 2 to 20, and may be 2 to 10 or 2 to 6. Examples include 2, 3, 8, 9, and 11. The number of carbon atoms may also be 1 to 10.

[0142] u4 is 0 or 1. -(O) ｕ４ -Q ｂ４ As the -, -CH is preferred from the viewpoint of ease of production of the compound. ２ CH ２ -, -CH ２ CH ２ CH ２ -, -CH ２ CH ２ CH ２ CH ２ CH ２ CH ２ CH ２ CH ２ CH ２ CH ２ CH ２ -, -CH ２ OCH ２ CH ２ CH ２ -, -CH ２ OCH ２ CH ２ CH ２CH ２ CH ２ -, -OCH ２ CH ２ CH ２ -, -OSi(CH ３ ) ２ CH ２ CH ２ CH ２ -, -OSi(CH ３ ) ２ OSi(CH ３ ) ２ CH ２ CH ２ CH ２ -, -CH ２ CH ２ CH ２ Si(CH ３ ) ２ PhSi(CH ３ ) ２ CH ２ CH ２ - is preferred (where the right side is bonded to Si).

[0143] w1 is an integer of 0 to 2, preferably 0 or 1, and particularly preferably 0. [-(O) ｕ４ -Q ｂ４ -Si(R ２ ) ｎ L ３－ｎ If there are two or more [-(O) ｕ４ -Q ｂ４ -Si(R ２ ) ｎ L ３－ｎ ] may be the same or different. ３１ If there are two or more, there are two or more (-R ３１ ) may be the same or different.

[0144] Specific examples of the group (3-1A-4) include the following groups: In the following formula, * represents a bonding site to an adjacent atom.

[0145]

[0146] In the group (3-1A-5), Q ａ５is an alkylene group which may have an etheric oxygen atom. The alkylene group which may have an etheric oxygen atom preferably has 1 to 10 carbon atoms, and particularly preferably has 2 to 6 carbon atoms. ａ５ As the compound, -OCH ２ CH ２ CH ２ -, -OCH ２ CH ２ OCH ２ CH ２ CH ２ -, -CH ２ CH ２ -, -CH ２ CH ２ CH ２ - is preferred (where the right side is bonded to Si).

[0147] Q ｂ５ is an alkylene group or a group having an etheric oxygen atom or a divalent organopolysiloxane residue between carbon atoms of an alkylene group having two or more carbon atoms. ｂ５ The number of carbon atoms in the alkylene group represented by the formula (I) is preferably 1 to 30, more preferably 1 to 20, and even more preferably 2 to 20, and may be 2 to 10 or 2 to 6. Examples include 2, 3, 8, 9, and 11. The number of carbon atoms may also be 1 to 10. Q ｂ５ The number of carbon atoms in the group having an etheric oxygen atom or a divalent organopolysiloxane residue between carbon atoms in the alkylene group having 2 or more carbon atoms, represented by the formula (I), is preferably 2 to 20, more preferably 2 to 10, and even more preferably 2 to 6. ｂ５ As the compound, -CH ２ CH ２ CH ２ -, -CH ２ CH ２ OCH ２ CH ２ CH ２ - is preferred (however, the right side is Si(R ２ ) ｎ L ３－ｎ Bind to. ).

[0148] Three [-Q ｂ５ -Si(R２ ) ｎ L ３－ｎ ] may be the same or different.

[0149] Specific examples of the group (3-1A-5) include the following groups: In the following formula, * represents a bonding site to an adjacent atom.

[0150]

[0151] Q in group (3-1A-6) ｅ is as defined in the above group (3-1A-4). v is 0 or 1.

[0152] Q ａ６ is an alkylene group which may have an etheric oxygen atom. The alkylene group which may have an etheric oxygen atom preferably has 1 to 10 carbon atoms, and particularly preferably has 2 to 6 carbon atoms. ａ６ As the compound, -CH ２ OCH ２ CH ２ CH ２ -, -CH ２ OCH ２ CH ２ OCH ２ CH ２ CH ２ -, -CH ２ CH ２ -, -CH ２ CH ２ CH ２ - is preferred (however, the right side is Z ａ Bind to. ).

[0153] Z ａ is a (w2+1)-valent organopolysiloxane residue, or a (w2+1)-valent group having an alkylene group between the organopolysiloxane residues. w2 is an integer of 2 to 7. Examples of the (w2+1)-valent organopolysiloxane residue and the (w2+1)-valent group having an alkylene group between the organopolysiloxane residues include the following groups. However, R in the following formula ａ * indicates a binding site.

[0154]

[0155] Q ｂ６ Q is an alkylene group or a group having an etheric oxygen atom or a divalent organopolysiloxane residue between carbon atoms of an alkylene group having two or more carbon atoms. ｂ６ The number of carbon atoms in the alkylene group represented by the formula (I) is preferably 1 to 30, more preferably 1 to 20, and even more preferably 2 to 20, and may be 2 to 10 or 2 to 6. Examples include 2, 3, 8, 9, and 11. The number of carbon atoms may also be 1 to 10. Q ｂ６ The number of carbon atoms in the group having an etheric oxygen atom or a divalent organopolysiloxane residue between carbon atoms in the alkylene group having 2 or more carbon atoms, represented by the formula (I), is preferably 2 to 20, more preferably 2 to 10, and even more preferably 2 to 6. ｂ６ As the compound, -CH ２ CH ２ -, -CH ２ CH ２ CH ２ - is preferred. ｂ６ -Si(R ２ ) ｎ L ３－ｎ ] may be the same or different.

[0156] Specific examples of the group (3-1A-6) include the following groups: In the following formula, * represents a bonding site to an adjacent atom.

[0157]

[0158] In the group (3-1A-7), Z ｃ is a hydrocarbon group having a valence of (w3+w4+1). w3 is an integer of 4 or more. w4 is an integer of 0 or more. Q ｅ , s4, Q ａ４ , t4, Q ｂ４ The definitions and preferred ranges of u4 and u5 are the same as those of the respective symbols in group (3-1A-4).

[0159] Z ｃmay be composed of a hydrocarbon chain, and may have an etheric oxygen atom between carbon atoms in the hydrocarbon chain, and is preferably composed of a hydrocarbon chain. ｃ The valence of Z is preferably from 5 to 20, more preferably from 5 to 10, still more preferably from 5 to 8, and particularly preferably from 5 to 6. ｃ The number of carbon atoms in [-(O-Q ｂ４ ) ｕ４ -Si(R ２ ) ｎ L ３－ｎ If there are two or more [-(O-Q ｂ４ ) ｕ４ -Si(R ２ ) ｎ L ３－ｎ ] may be the same or different.

[0160] Specific examples of the group (3-1A-7) include the following groups: In the following formula, * represents a bonding site to an adjacent atom.

[0161]

[0162] A in formula (3) １１ may be a group (g2-1) (where d1+d3=1, d2+d4=q), a group (g2-2) (where e1=1, e2=q), a group (g2-3) (where q=2), a group (g2-4) (where h1=1, h2=q), a group (g2-5) (where i1=1, i2=q), a group (g2-6) (where q=1), or a group (g2-7) (where i3=q).

[0163]

[0164] (-A １ -Q １２ -) ｅ１ C (R ｅ２ )４－ｅ１－ｅ２ (-Q ２２ -) ｅ２ ... (g2-2) -A １ -Q １３ -N(-Q ２３ -) ２ ...(g2-3) (-A １ -Q １４ -) ｈ１ Z ４ (-Q ２４ -) ｈ２ ...(g2-4) (-A １ -Q １５ -) ｉ１ Si(R ｅ３ ) ４－ｉ１－ｉ２ (-Q ２５ -) ｉ２ ... (g2-5) -A １ -Q ２６ - (g2-6) -A １ -Q １２ -CH(-Q ２２ -)-Si(R ｅ３ ) ３－ｉ３ (-Q ２５ -) ｉ３ …(g2-7)

[0165] However, in formulas (g2-1) to (g2-7), A １ The side is (Ak ２ ) ｋ１２ side, and Q ２２ , Q ２３ , Q ２４ , Q ２５ or Q ２６ The side is [-Si(R ２ ) ｎ L ３－ｎ When k11 is 1 and k12 is 0 in formula (3), A １ (Ak ２ ) ｋ１２ The end of the side bonded to the side is not an alkylene group. １ represents a single bond, -C(O)NR ６ -, -C(O)-, -OC(O)O-, -NHC(O)O-, -NHC(O)NR ６ -, -O- or SO ２ NR ６ - is. １１represents a single bond, —O—, an alkylene group, or —C(O)NR between carbon atoms of an alkylene group having two or more carbon atoms. ６ -, -C(O)-, -NR ６ - or O- containing group. １２ represents a single bond, an alkylene group, or a —C(O)NR group between carbon atoms of an alkylene group having two or more carbon atoms. ６ -, -C(O)-, -NR ６ - or O-, and A １１ GaQ １２ If there are two or more, there are two or more Q １２ may be the same or different. １３ is a single bond (where A １ is —C(O)—), an alkylene group, an alkylene group having 2 or more carbon atoms having —C(O)NR between carbon atoms. ６ -, -C(O)-, -NR ６ Q is a group having - or O-, or a group having -C(O)- at the N-terminal of the alkylene group. １４ Is, Q １４ Z to which ４ If the atom in is a carbon atom, Q １２ and Q １４ Z to which ４ When the atom in is a nitrogen atom, Q １３ and A １１ GaQ １４ If there are two or more, there are two or more Q １４ may be the same or different. １５ represents an alkylene group or an alkylene group having two or more carbon atoms with —C(O)NR between carbon atoms. ６ -, -C(O)-, -NR ６ - or O-, and A １１ GaQ １５ If there are two or more, there are two or more Q １５ may be the same or different. ２２ represents an alkylene group, an alkylene group having 2 or more carbon atoms, and a —C(O)NR group between carbon atoms. ６ -, -C(O)-, -NR ６ a group having - or O-, and -C(O)NR at the end of the alkylene group not connected to Si;６ -, -C(O)-, -NR ６ A group having - or O-, or an alkylene group having 2 or more carbon atoms having -C(O)NR between carbon atoms. ６ -, -C(O)-, -NR ６ - or O- and -C(O)NR at the end not connected to Si ６ -, -C(O)-, -NR ６ - or O-, and A １１ GaQ ２２ If there are two or more, there are two or more Q ２２ may be the same or different. ２３ represents an alkylene group or an alkylene group having two or more carbon atoms with —C(O)NR between carbon atoms. ６ -, -C(O)-, -NR ６ - or O-, and two Q ２３ may be the same or different. ２４ Is, Q ２４ Z to which ４ If the atom in is a carbon atom, Q ２２ and Q ２４ Z to which ４ When the atom in is a nitrogen atom, Q ２３ and A １１ GaQ ２４ If there are two or more, there are two or more Q ２４ may be the same or different. ２５ represents an alkylene group or an alkylene group having two or more carbon atoms with —C(O)NR between carbon atoms. ６ -, -C(O)-, -NR ６ - or O-, and A １１ GaQ ２５ If there are two or more, there are two or more Q ２５ may be the same or different. ２６ represents an alkylene group or an alkylene group having two or more carbon atoms with —C(O)NR between carbon atoms. ６ -, -C(O)-, -NR ６ - or O- containing group. ２２ , Q ２３ , Q ２４ , Q ２５ , Q２６ When Z is an alkylene group, it preferably has 1 to 20 carbon atoms, more preferably 1 to 10 carbon atoms, and even more preferably 1 to 6 carbon atoms. ４ Is, Q １４ has a carbon atom or nitrogen atom to which Q is directly bonded, ２４ is a group having a valence of h1+h2 and a carbon atom or nitrogen atom to which R is directly bonded. ｅ１ is a hydrogen atom or an alkyl group, and A １１ is R ｅ１ When there are two or more R ｅ１ may be the same or different. ｅ２ is a hydrogen atom, a hydroxyl group, an alkyl group, or an acyloxy group. ｅ３ is an alkyl group. ６ is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a phenyl group.

[0166] d1 is an integer of 0 to 1. d2 is an integer of 0 to 3, preferably 1 or 2. d1 + d2 is an integer of 1 to 3. d3 is an integer of 0 to 1. d4 is an integer of 0 to 3, preferably 2 or 3. d3 + d4 is an integer of 1 to 3. d1 + d3 is 1. d2 + d4 is an integer of 1 to 5, preferably 4 or 5. e1 + e2 is 3 or 4. e1 is 1. e2 is an integer of 1 to 3, preferably 2 or 3. h1 is 1. h2 is an integer of 1 or more, preferably 2 or 3. i1 + i2 is 3 or 4. i1 is 1. i2 is an integer of 1 to 3, preferably 2 or 3. i3 is 2 or 3.

[0167] Q １１ , Q １２ , Q １３ , Q １４ , Q １５ , Q ２２ , Q ２３ , Q ２４ , Q ２５ and Q ２６The number of carbon atoms in the alkylene group is preferably 1 to 30, more preferably 1 to 20, and even more preferably 2 to 20, from the viewpoints of ease of production of the compound and further superior abrasion resistance of the surface treatment layer, and may be 2 to 10 or 2 to 6. Examples include 2, 3, 8, 9, and 11. The number of carbon atoms may also be 1 to 10, 1 to 6, or 1 to 4. However, when a specific bond is present between carbon atoms, the lower limit of the number of carbon atoms in the alkylene group is 2.

[0168] Z ４ Examples of the ring structure in Z include the ring structures described above, and the preferred embodiments are also the same. ４ The ring structure in １４ YaQ ２４ is directly bonded to the ring structure, for example, an alkylene group is linked to the alkylene group, and Q １４ YaQ ２４ are never connected.

[0169] R ｅ１ , R ｅ２ or R ｅ３ The number of carbon atoms in the alkyl group of R is preferably 1 to 6, more preferably 1 to 3, and particularly preferably 1 or 2, from the viewpoint of ease of production of the compound. ｅ２ The number of carbon atoms in the alkyl group portion of the acyloxy group is preferably 1 to 6, more preferably 1 to 3, and particularly preferably 1 or 2, from the viewpoint of ease of production of the compound. h1 is preferably 1 to 6, more preferably 1 to 4, even more preferably 1 or 2, and particularly preferably 1, from the viewpoint of ease of production of the compound and further excellent abrasion resistance of the surface treatment layer. h2 is preferably 2 to 6, more preferably 2 to 4, and particularly preferably 2 or 3, from the viewpoint of ease of production of the compound and further excellent abrasion resistance of the surface treatment layer.

[0170] A １１Other forms of the formula include a group (g2-8) (where d1 + d3 = 1, and d2 × k3 + d4 × k3 = q), a group (g2-9) (where e1 = 1, and e2 × k3 = q), a group (g2-10) (where 2 × k3 = q), a group (g2-11) (where h1 = 1, and h2 × k3 = q), a group (g2-12) (where i1 = 1, and i2 × k3 = q), a group (g2-13) (where k3 = q), and a group (g2-14) (where i3 × k3 = q).

[0171]

[0172] (-A １ -Q １２ -) ｅ１ C (R ｅ２ ) ４－ｅ１－ｅ２ (-Q ２２ -G １ ) ｅ２ ... (g2-9) -A １ -Q １３ -N(-Q ２３ -G １ ) ２ ...(g2-10) (-A １ -Q １４ -) ｈ１ Z ４ (-Q ２４ -G １ ) ｈ２ ...(g2-11) (-A １ -Q １５ -) ｉ１ Si(R ｅ３ ) ４－ｉ１－ｉ２ (-Q ２５ -G １ ) ｉ２ ...(g2-12) -A １ -Q ２６ -G １ ...(g2-13) -A １ -Q １２ -CH(-Q ２２ -G １ )-Si(R ｅ３ ) ３－ｉ３ (-Q ２５ -G １ ) ｉ３ …(g2-14)

[0173] However, in formulas (g2-8) to (g2-14), A １ The side is (Ak ２ ) ｋ１２ Binds to the side, G １ The side is [-Si(R ２ ) ｎ L ３－ｎ When k11 is 1 and k12 is 0 in formula (3), A １ (Ak ２ ) ｋ１２ The end of the side bonded to the side is not an alkylene group.

[0174] G １ is the following group (g3), and A １１ Two or more Gs １ may be the same or different. １ The symbols other than are the same as those in formulas (g2-1) to (g2-7). １３ ) ３－ｋ３ (-Q ３ -) ｋ３ ...(g3) In the group (g3), the Si side is Q ２２ , Q ２３ , Q ２４ , Q ２５ and Q ２６ Connect to Q ３ The side is [-Si(R ２ ) ｎ L ３－ｎ ]. １３ is an alkyl group. ３ represents an alkylene group, an alkylene group having 2 or more carbon atoms, and a —C(O)NR group between carbon atoms. ６ -, -C(O)-, -NR ６ - or -O- containing group, or (OSi(R ９ ) ２ ) ｐ -O-, and two or more Q ３ may be the same or different. k3 is 2 or 3. R ６ is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a phenyl group. ９ is an alkyl group, a phenyl group, or an alkoxy group, and two R ９may be the same or different. p is an integer of 0 to 5, and when p is 2 or more, there are two or more (OSi(R ９ ) ２ ) may be the same or different.

[0175] Q ３ The number of carbon atoms in the alkylene group is preferably 1 to 30, more preferably 1 to 20, and even more preferably 2 to 20, from the viewpoint of ease of production of the compound and further superior abrasion resistance of the surface treatment layer, and may be 2 to 10 or 2 to 6. Examples include 2, 3, 8, 9, and 11. The number of carbon atoms may be 1 to 10, 1 to 6, or 1 to 4. However, when there is a specific bond between carbon atoms, the lower limit of the number of carbon atoms in the alkylene group is 2. R １３ The number of carbon atoms in the alkyl group of R is preferably 1 to 6, more preferably 1 to 3, and even more preferably 1 or 2, from the viewpoint of ease of production of the compound. ９ The number of carbon atoms in the alkyl group of R is preferably 1 to 6, more preferably 1 to 3, and even more preferably 1 or 2, from the viewpoint of ease of production of the compound. ９ In view of excellent storage stability of the compound, the number of carbon atoms in the alkoxy group is preferably 1 to 6, more preferably 1 to 3, and particularly preferably 1 or 2. p is preferably 0 or 1.

[0176] The group A in the first compound and the group A in the second compound may be the same or different from each other, and are preferably the same from the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slippage. When the first composition contains a third compound, the group A in the first compound, the group A in the second compound, and the group A in the third compound may all be the same, or only two of them may be the same, or they may all be different from each other. The group A in the first compound, the group A in the second compound, and the group A in the third compound are preferably the same from the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slippage.

[0177] (Specific Examples) Specific examples of compound (1) include the following compounds. In the following formulae, m has the same meaning as m in formula (1). In each of the compounds of formulas 23 and 24, (Si(R １ ) ２ -O) ｍ The part related to (Si(Me) ２ —O) and (Si(R １ ) ２ -O) < where (R １ ) ２ Me ２ Not. > and (Si(Me) ２ -O) ｍ－２ and bond to form (Si(R １ ) ２ -O) ｍ In addition, in each compound of Chemical Formula 25, the (Si(R １ ) ２ -O) ｍ The part related to (Si(R １ ) ２ -O) < where (R １ ) ２ Me ２ Not. > and (Si(Me) ２ -O) ｍ－１ and bond to form (Si(R １ ) ２ -O) ｍ It has become.

[0178]

[0179]

[0180]

[0181]

[0182]

[0183]

[0184]

[0185]

[0186] The number average molecular weight (Mn) of compound (1) is preferably 500 to 20,000, more preferably 600 to 18,000, and even more preferably 700 to 15,000. Here, the number average molecular weight (Mn) of compound (1) means the total number average molecular weight (Mn) of two or more types of compound (1) contained in the first composition.

[0187] If Mn is 500 or more, the abrasion resistance of the surface treatment layer is superior. If Mn is 20,000 or less, the viscosity can be easily adjusted within an appropriate range, and the solubility is improved, resulting in excellent handling properties during film formation.

[0188] The two or more compounds (1) may be different from each other in at least the structure of the group T. The structure other than the group T in the first compound and the structure other than the group T in the second compound may be the same or different. The first compound and the second compound may be different from each other in the structure of the group R from the viewpoint of improving the balance of antifouling properties, fingerprint removability, and slip properties. １ are preferably the same as each other, and the groups R １ and groups A are preferably the same as each other, and groups R １ It is more preferable that the group A, the reactive silyl group, and q are the same as each other. When the first composition contains a third compound, the first compound, the second compound, and the third compound only need to have different structures of at least the group T. The structure other than the group T in the first compound, the structure other than the group T in the second compound, and the structure other than the group T in the third compound may all be the same as each other, or only two of them may be the same as each other, or they may all be different from each other. From the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slip properties, the first compound, the second compound, and the third compound may have different structures of the group R １ are preferably the same as each other, and the group R １ and groups A are preferably the same as each other, and groups R １ It is more preferred that the group A, the reactive silyl group, and q are all the same as each other.

[0189] The first composition may contain impurities such as by-products produced in the production process of compound (1).

[0190] (Content) When the first composition contains two or more types of compound (1), the compound (1) contained in the first composition with the largest content is designated as the first compound, and the compound (1) with the second largest content is designated as the second compound, the content of the first compound relative to the total content of the compounds (1) is preferably 10 to 90 mass%, more preferably 30 to 90 mass%, and even more preferably 40 to 80 mass%. Furthermore, the content of the first compound relative to the total (100 mass%) of the first and second compounds is preferably 50 to 90 mass%, more preferably 50 to 80 mass%.

[0191] When the first composition contains three or more compounds (1), the compound (1) with the highest content among the compounds (1) contained in the first composition is designated as the first compound, the compound (1) with the second highest content is designated as the second compound, and the compound (1) with the third highest content is designated as the third compound. The content of the first compound relative to the total amount of compounds (1) is preferably 10 to 90% by mass, more preferably 30 to 80% by mass, and even more preferably 40 to 60% by mass. The content of the second compound relative to the total amount of compounds (1) is preferably 5% by mass or more, more preferably 10% by mass or more, and even more preferably 20% by mass or more. Furthermore, the content of the first compound relative to the total amount (100% by mass) of the first compound, the second compound, and the third compound is preferably 35 to 90% by mass, more preferably 35 to 80% by mass, and even more preferably 35 to 60% by mass. The content of the second compound relative to the total (100% by mass) of the first compound, the second compound, and the third compound is preferably 5% by mass or more, more preferably 10% by mass or more, and even more preferably 20% by mass or more. The content of the third compound relative to the total (100% by mass) of the first compound, the second compound, and the third compound is preferably 5% by mass or more, more preferably 10% by mass or more, and even more preferably 20% by mass or more.

[0192] When the first composition contains a first compound in which the group T is the group (2A) or the group (2B), and a second compound in which the group T is a methyl group, a linear alkyl group, or a branched cyclic alkyl group, the content of the first compound relative to the total (100% by mass) of the first compound and the second compound is preferably 10 to 90% by mass, more preferably 30 to 90% by mass, and even more preferably 40 to 80% by mass.

[0193] When the first composition comprises a first compound in which the group T is group (2A) or group (2B), a second compound in which the group T is a linear alkyl group or a branched cyclic alkyl group, and a third compound in which the group T is a methyl group, the content of the first compound relative to the total (100% by mass) of the first compound, the second compound, and the third compound is preferably 10 to 90% by mass, more preferably 30 to 80% by mass, and even more preferably 40 to 60% by mass. The content of the second compound relative to the total (100% by mass) of the first compound, the second compound, and the third compound is preferably 5 to 85% by mass, more preferably 10 to 60% by mass, and even more preferably 20 to 40% by mass. The content of the third compound relative to the total (100% by mass) of the first compound, the second compound, and the third compound is preferably 5 to 85% by mass, more preferably 10 to 60% by mass, and even more preferably 20 to 40% by mass.

[0194] From the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slip properties, the first composition preferably contains, as the first compound, a compound in which the group T is the group (2A) or the group (2B), in an amount of 10% by mass or more, more preferably 30% by mass or more, even more preferably 40% by mass or more, and particularly preferably 50% by mass or more, based on the entire compound (1). From the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slip properties, the first composition preferably contains, as the first compound, a compound in which the group T is the group (2A-1) or the group (2A-2), in an amount of 10% by mass or more, more preferably 30% by mass or more, even more preferably 40% by mass or more, and particularly preferably 50% by mass or more, based on the entire compound (1). From the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slip properties, the first composition preferably contains, as the first compound, a compound in which the group T is the group (2A-1-1) or the group (2A-2-1) in an amount of 10% by mass or more, more preferably 30% by mass or more, even more preferably 40% by mass or more, and particularly preferably 50% by mass or more, based on the total amount of compounds (1).

[0195] When the compound (1) contained in the first composition is the compound (1) with the highest content as the first compound and the compound (1) with the second highest content as the second compound, the content of the second compound relative to 100 parts by mass of the first compound is preferably 5 to 100 parts by mass, more preferably 10 to 100 parts by mass, even more preferably 12 to 100 parts by mass, particularly preferably 25 to 100 parts by mass, and most preferably 33 to 100 parts by mass. When the first composition contains three or more types of compound (1), when the compound (1) with the highest content is the first compound, the compound (1) with the second highest content is the second compound, and the compound (1) with the third highest content is the third compound, the content of the third compound relative to 100 parts by mass of the first compound is preferably 5 to 85 parts by mass, more preferably 12 to 85 parts by mass, and even more preferably 33 to 85 parts by mass.

[0196] The total content of the two or more compounds (1) is preferably 0.001 to 50% by mass, more preferably 0.01 to 20% by mass, and even more preferably 0.1 to 10% by mass, relative to the total amount of the first composition. In the case of a first composition used in a wet coating method, the total content of the two or more compounds (1) may be 0.01 to 10% by mass, 0.02 to 5% by mass, 0.03 to 3% by mass, or 0.05 to 2% by mass, relative to the total amount of the first composition.

[0197] <Compound (A)> The compound (A) contained in the composition of the present disclosure will be described.

[0198] (Group T) T in formula (A) is a monovalent group, and specific examples and preferred examples are the same as the monovalent group represented by T in formula (1). The group T in the first compound and the group T in the second compound may be the same or different from each other. However, the group Y in the first compound １ and the group Y in the second compound １ On the other hand, when the composition is the second composition, that is, when the group Y in the first compound is the same as the group Y in the second compound, the group T in the first compound is different from the group T in the second compound. １ and the group Y in the second compound １ and are different from each other, the group T in the first compound and the group T in the second compound may be the same or different.

[0199] When the composition includes a third compound, the group Y in the third compound １ and the group Y in the first compound １ The group T in the third compound and the group T in the first compound may be the same or different, provided that they are different. １ and the group Y in the first compound １ are the same, the group T in the third compound and the group T in the first compound are different from each other. The relationship between the group T in the third compound and the group T in the second compound is the same as the relationship between the group T in the third compound and the group T in the first compound.

[0200] (Group R １ , groups A, m, and q) R in formula (A) １ are each independently a monovalent hydrocarbon group, and specific and preferred examples are １ A in formula (A) is a (q+1)-valent linking group, and specific examples and preferred examples are the same as the (q+1)-valent linking group represented by A in formula (1). m in formula (A) is a number of 1 or more, and the preferred range is the same as m in formula (1). q in formula (A) is an integer of 1 or more, and the preferred range is the same as q in formula (1).

[0201] The group R in the first compound １ and the group R in the second compound １ may be the same or different, and from the viewpoint of improving the balance of antifouling property, fingerprint removability, and slipperiness, the group R １ and the group R in the second compound １ When the composition includes a third compound, the group R １ and the group R in the second compound １ and the group R in the third compound １ The groups R in the first compound may all be the same, only two of them may be the same, or they may all be different. １ and the group R in the second compound １ and the group R in the third compound １ From the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slip properties, it is preferable that all of these are the same. The same applies to the groups A, m, and q.

[0202] (Group Y １ ) Y in formula (A) １ is a monovalent hydrocarbon group or a group represented by formula (1A). Ａ -(Si(R １Ａ ) ２ -O) ｍａ -* １Ａ ...(1A) In formula (1A), T Ａ is a monovalent group, R１Ａ are each independently a monovalent hydrocarbon group, ma is a number of 1 or more, １Ａ is the bonding site to the silicon atom in formula (A).

[0203] Y in formula (A) １ Specific and preferred examples of the monovalent hydrocarbon group represented by the formula (1) are １ The same applies to the monovalent hydrocarbon group represented by the formula (A). １ is group (1A), T in formula (1A) Ａ and a monovalent group represented by R １Ａ Specific examples and preferred examples of the monovalent hydrocarbon group represented by the formula (1) are the monovalent group represented by T and R １ The same applies to the monovalent hydrocarbon group represented by the formula (A). １ When Y in formula (A) is group (1A), the preferred range of ma in formula (1A) is the same as that of m in formula (1). １ is group (1A), T-(Si(R １ ) ２ -O) ｍ - and Y １ (i.e., group (1A)) may be the same as or different from each other. From the viewpoint of availability of raw materials and ease of production of the compound, T-(Si(R １ ) ２ -O) ｍ - and Y １ are preferably the same as each other.

[0204] From the viewpoint of obtaining a surface treatment layer having excellent antifouling properties, it is preferable that at least one group Y of the compound (A) contained in the composition is contained. １ From the viewpoint of obtaining a surface treatment layer having excellent fingerprint removability, it is preferable that at least one group Y of the compound (A) contained in the composition is １ is preferably a monovalent hydrocarbon group, more preferably a methyl group. From the viewpoint of obtaining a surface treatment layer having excellent slip properties, at least one group Y of the compound (A) contained in the composition is １ is preferably a monovalent hydrocarbon group, more preferably a methyl group.

[0205] Group Y of the first compound １ and the group Y of the second compound １ Examples of the combination include a combination of group (1A) with a group (1A), a combination of group (1A) with a monovalent hydrocarbon group, and a combination of a monovalent hydrocarbon group with a monovalent hydrocarbon group. However, when the group T in the first compound and the group T in the second compound are the same, the group Y in the first compound may be １ and the group Y in the second compound １ On the other hand, when the group T in the first compound and the group T in the second compound are different from each other, the group Y in the first compound １ and the group Y in the second compound １ and may be the same or different. From the viewpoint of obtaining a surface treatment layer having a good balance of antifouling property, fingerprint removability, and slipperiness, the group Y of the first compound is １ is group (1A) and the second compound is group Y １ is preferably a monovalent hydrocarbon group, and the group Y １ is a trimethylsilyloxy group, and the group Y １ is more preferably a methyl group.

[0206] When the composition further comprises a third compound, the group Y of the first compound １ and the group Y of the second compound １ and the group Y of the third compound １ Examples of the combination include a combination of group (1A), a combination of group (1A), a combination of group (1A), a combination of group (1A), a monovalent hydrocarbon group, a combination of group (1A), a monovalent hydrocarbon group, and a combination of a monovalent hydrocarbon group, a monovalent hydrocarbon group, and a monovalent hydrocarbon group. However, the first compound and the third compound are not limited to the combination of group T and group Y. １ and the second compound and the third compound have at least one of the groups T and Y １ From the viewpoint of obtaining a surface treatment layer having a good balance of antifouling property, fingerprint removability, and slipperiness, the group Y of the first compound is different from the group Y of the second compound. １is group (1A), and the second compound is group Y １ is a monovalent hydrocarbon group, and the group Y of the third compound １ is preferably a monovalent hydrocarbon group, and the group Y １ is a trimethylsilyloxy group, and the group Y １ is a methyl group, and the group Y １ is more preferably a methyl group.

[0207] (Group Y ２ ) Y in formula (A) ２ are each independently a group represented by formula (S1) or formula (S3). Ｓ１ -Si(R ２ ) ｎ L ３－ｎ ...(S1) In formula (S1), R ２ are each independently a hydrocarbon group; each L is independently a hydrolyzable group, a group having a hydrolyzable group, or a hydroxyl group; n is an integer of 0 to 2; Ｓ１ is the bonding site to the linking group represented by A in formula (A). Ｓ３ -[Si(L ２ ) ２ -P] ｒ１ -Si(L ２ ) ３ ...(S3) In formula (S3), L ２ each independently represents a hydrolyzable group, a group having a hydrolyzable group, a hydroxyl group, or a hydrocarbon group; ２ At least four L ２ is a hydrolyzable group, a group having a hydrolyzable group, or a hydroxyl group; each P is independently an oxygen atom or an organic group having one carbon atom bonded to adjacent Si atoms on both sides; r1 is an integer of 1 to 3; Ｓ３ is the bonding site to the linking group represented by A in formula (A).

[0208] When a plurality of groups (S1) are present in one molecule, the plurality of groups (S1) may be the same or different from each other. From the viewpoint of availability of raw materials and ease of production of the compound, it is preferable that the plurality of groups (S1) are the same. ２ Specific and preferred examples of L are R ２ and L. The preferred range of n in formula (S1) is the same as that of n in formula (1). Specific examples and preferred examples of the group (S1) are the same as those of the reactive silyl group in formula (1).

[0209] When a plurality of groups (S3) are present in one molecule, the plurality of groups (S3) may be the same or different from each other. From the viewpoint of availability of raw materials and ease of production of the compound, it is preferable that the plurality of groups (S3) are the same.

[0210] L ２ are each independently a hydrolyzable group, a group having a hydrolyzable group, a hydroxyl group, or a hydrocarbon group. Details of the hydrolyzable group and the group having a hydrolyzable group are as described above. ２ From the viewpoint of ease of production of the compound, the hydrolyzable group or the group having a hydrolyzable group in L is preferably an alkoxy group having 1 to 4 carbon atoms, an alkylene oxide-modified alkoxy group, or a halogen atom. ２ From the viewpoints of reducing outgassing during application and improving the storage stability of the compound, L is preferably an alkoxy group having 1 to 4 carbon atoms, and more preferably an ethoxy group or a methoxy group. ２ Examples of the hydrocarbon group represented by the formula (I) include an alkyl group, a cycloalkyl group, an alkenyl group, and an allyl group. From the viewpoint of ease of synthesis, a saturated hydrocarbon group is preferred, and an alkyl group is more preferred. The number of carbon atoms in the hydrocarbon group is preferably 1 to 6, more preferably 1 to 3, and even more preferably 1 or 2.

[0211] r1 is an integer of 1 to 3, and from the viewpoint of ease of synthesis, 1 or 2 is preferred, and 1 is more preferred.

[0212] A plurality of Ls in one group (S3) ２Among these, at least four are hydrolyzable groups, groups having a hydrolyzable group, or hydroxyl groups. This allows the group (S3) to bond more firmly to the substrate, resulting in a surface treatment layer with excellent durability. From this viewpoint, the number of hydrolyzable groups, groups having a hydrolyzable group, and hydroxyl groups in the group (S3) is preferably 4 to 9, more preferably 4 to 7, and even more preferably 4 or 5. In addition, when multiple Ls exist in one molecule, ２ may be the same or different from each other. For example, ２ may be the same hydrolyzable group.

[0213] Each P is independently an oxygen atom or an organic group having one carbon atom that bonds to adjacent Si on both sides. Here, "an organic group having one carbon atom that bonds to adjacent Si on both sides" means that Si is linked to itself via one carbon atom. Examples of P include hydrocarbon groups, such as -CH ２ -, -C(CH ３ ) ２ From the viewpoint of durability of the surface treatment layer, P may be an oxygen atom, —CH ２ -, or -C(CH ３ ) ２ - is preferred, and an oxygen atom or -CH ２ - is more preferred, and an oxygen atom is even more preferred.

[0214] From the viewpoint of excellent durability of the surface treatment layer, the group (S3) is -[Si(OR １２ ) ２ -O] ｒ１ -Si(OR １２ ) ３ is preferred, and among these, -Si(OR １２ ) ２ —O—Si(OR １２ ) ３ is particularly preferred. １２ R are each independently a hydrocarbon group. Examples of the hydrocarbon group include an alkyl group, a cycloalkyl group, an alkenyl group, and an allyl group. From the viewpoint of ease of synthesis, a saturated hydrocarbon group is preferred, and an alkyl group is more preferred. １２The number of carbon atoms is preferably 1 to 6, more preferably 1 to 3, and even more preferably 1 or 2.

[0215] Specific examples of the group (S3) include —Si(OCH ３ ) ２ —O—Si(OCH ３ ) ３ , -Si(OCH ３ ) ２ -CH ２ -Si(OCH ３ ) ３ , -Si(OCH ３ ) ２ -C(CH ３ ) ２ -Si(OCH ３ ) ３ , -Si(OCH ２ CH ３ ) ２ —O—Si(OCH ３ ) ３ , -Si(OCH ３ ) ２ —O—Si(OCH ２ CH ３ ) ３ , -Si(OCH ２ CH ３ ) ２ —O—Si(OCH ２ CH ３ ) ３ , -Si(OCH ２ CH ３ ) ２ -CH ２ -Si(OCH ３ ) ３ , -Si(OCH ３ ) ２ -CH ２ -Si(OCH ２ CH ３ ) ３ , -Si(OCH ２ CH ３ ) ２ -CH ２ -Si(OCH ２ CH ３ ) ３ , -Si(OCH ２ CH ３ ) ２ -C(CH ３ )２ -Si(OCH ３ ), -Si(OCH ３ ), -Si(OCH ３ ), -Si(OCH ２ ), -C(CH ３ ), -C(CH ２ ), -Si(OCH ２ CH ３ ), -Si(OCH ３ ), -C(CH ２ CH ３ ), -C(CH ２ ), -Si(OCH ３ CH ２ ), -Si(OCH ２ CH ３ ), -Si(OH) ３ ), -Si(OH) ２ -O-Si(OH) ３ ), -Si(OH) ２ -O-Si(OCH ３ ), -Si(OCH ３ ), -Si(OCH ３ ), -Si(OCH ２ -O-Si(OH) ３ ), -Si(OH) ２ -CH ２ -Si(OH) ３ ), -Si(OH) ２ -CH ２ -Si(OCH ３ ), -Si(OCH ３ ), -Si(OCH ３ ), -Si(OCH ２ -CH ２ -Si(OH) ３ ), -Si(OH) ２ -C(CH ３ ), -C(CH ２ -Si(OH) ３ ), -Si(OH) ２ -C(CH ３ ), -C(CH ２ -Si(OCH ３ ), -Si(OCH ３ ), -Si(OCH ３ ), -Si(OCH ２ -C(CH ３ ), -C(CH ２ -Si(OH) ３ ), etc. <​​​​​From the viewpoint of availability of raw materials and ease of production of the compound, it is preferable to use a plurality of groups Y ２ Preferably, the groups Y in the first compound are the same. ２ and the group Y in the second compound ２ and may be the same or different from each other. From the viewpoint of improving the balance between antifouling property, fingerprint removability, and slipperiness, the group Y ２ and the group Y in the second compound ２ When the composition includes a third compound, the group Y in the first compound is preferably the same as ２ and the group Y in the second compound ２ and the group Y in the third compound ２ The groups Y in the first compound may all be the same, only two of them may be the same, or they may all be different. ２ and the group Y in the second compound ２ and the group Y in the third compound ２ and are preferably the same from the viewpoint of improving the balance between antifouling properties, fingerprint removability, and slipperiness.

[0217] (Specific Examples) Specific examples of the compound (A) other than the specific examples of the compound (1) include the following compounds: In the following formula, m has the same meaning as m in formula (A).

[0218]

[0219] The preferred range of the number average molecular weight (Mn) of compound (A) is the same as the preferred range of the number average molecular weight (Mn) of compound (1) described above. The composition of the present disclosure may contain impurities such as by-products produced in the production process of compound (A).

[0220] (Content) The preferred range of the content of each compound in the composition of the present disclosure containing two or more compounds (A) is the same as the content of each compound in the first composition described above. When the composition of the present disclosure contains three or more compounds (A), the preferred range of the content of each compound is the same as the content of each compound in the first composition described above. The preferred range of the total content of two or more compounds (A) relative to the total amount of the composition of the present disclosure is the same as the total content of two or more compounds (1) relative to the total amount of the first composition described above.

[0221] <Liquid medium> The composition of the present disclosure preferably further contains a liquid medium. When the composition of the present disclosure contains a liquid medium, the composition of the present disclosure may be in a liquid state, and may be a solution or a dispersion. The liquid medium contained in the composition of the present disclosure may be only one type, or may be two or more types. The liquid medium is preferably an organic solvent.

[0222] Examples of organic solvents include compounds consisting only of hydrogen atoms and carbon atoms, and compounds consisting only of hydrogen atoms, carbon atoms, and oxygen atoms, and specific examples include hydrocarbon organic solvents, ketone organic solvents, ether organic solvents, ester organic solvents, glycol organic solvents, and alcohol organic solvents. Specific examples of hydrocarbon organic solvents include pentane, hexane, heptane, octane, hexadecane, isohexane, isooctane, isononane, cycloheptane, cyclohexane, bicyclohexyl, benzene, toluene, ethylbenzene, o-xylene, m-xylene, p-xylene, o-diethylbenzene, m-diethylbenzene, p-diethylbenzene, n-butylbenzene, sec-butylbenzene, and tert-butylbenzene. Specific examples of ketone-based organic solvents include acetone, methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, cyclohexanone, 2-heptanone, 4-heptanone, 3,5,5-trimethyl-2-cyclohexen-1-one, 3,3,5-trimethylcyclohexanone, and isophorone.Specific examples of ether-based organic solvents include diethyl ether, cyclopentyl methyl ether, tetrahydrofuran, and 1,4-dioxane.Specific examples of the ester-based organic solvent include methyl acetate, ethyl acetate, propyl acetate, isopropyl acetate, butyl acetate, isobutyl acetate, tert-butyl acetate, amyl acetate, isoamyl acetate, ethyl 3-ethoxypropionate, ethyl lactate, ethylene glycol monobutyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, dipropylene glycol methyl ether acetate, 3-methoxy-3-methylbutyl acetate, 3-methoxybutyl acetate, propylene glycol monomethyl acetate, propylene glycol dimethyl acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monomethyl ether acetate, diethylene glycol Cholesterol monoethyl ether acetate, cyclohexanol acetate, propylene glycol diacetate, propylene glycol monomethyl ether acetate, propylene glycol monomethyl ether propionate, propylene glycol monoethyl ether acetate, propylene glycol monobutyl ether acetate, propylene glycol monopropyl ether acetate, dipropylene glycol methyl ether acetate, 1,3-butylene glycol diacetate, 1,4-butanediol diacetate, 1,3-butylene glycol diacetate, 1,6-hexanediol diacetate, γ-butyrolactone, triacetin, and 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate.Specific examples of glycol-based organic solvents include ethylene glycol, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, tetraethylene glycol monobutyl ether, ethylene glycol monohexyl ether, diethylene glycol monohexyl ether, ethylene glycol mono-2-ethylhexyl ether, diethylene glycol mono-2-ethylhexyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monobutyl ether, propylene glycol monopropyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monoethyl ether, ethylene glycol mono-tert-butyl ether, ethylene glycol monopropyl ether, ethylene glycol monomethyl ether, diethylene glycol monoisopropyl ether, diethylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monobutyl ether, and dipropylene glycol monopropyl ether. Examples of the glycol monopropyl ether include dipropylene glycol monomethyl ether, tripropylene glycol monobutyl ether, tripropylene glycol monomethyl ether, propylene glycol monophenyl ether, 1,3-butylene glycol, propylene glycol n-propyl ether, propylene glycol n-butyl ether, diethylene glycol monoethyl ether, dipropylene glycol n-propyl ether, dipropylene glycol n-butyl ether, tripropylene glycol methyl ether, tripropylene glycol n-butyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, diethylene glycol diethyl ether, diethylene glycol dimethyl ether, dipropylene glycol dimethyl ether, diethylene glycol dibutyl ether, tetraethylene glycol dimethyl ether, dipropylene glycol dimethyl ether pentane, triethylene glycol dimethyl ether, and polyethylene glycol dimethyl ether.Specific examples of alcohol-based organic solvents include methanol, ethanol, 1-propanol, isopropyl alcohol, n-butanol, diacetone alcohol, isobutanol, sec-butanol, tert-butanol, pentanol, 3-methyl-1,3-butanediol, 1,3-butanediol, 1,3-butylene glycol, octanediol, 2,4-diethylpentanediol, butylethylpropanediol, 2-methyl-1,3-propanediol, 4-hydroxy-4-methyl-2-pentanone, 2-ethyl-1-hexanol, 3,5,5-trimethyl-1-hexanol, isodecanol, isotridecanol, 3-methoxy-3-methyl-1-butanol, 2-methoxybutanol, 3-methoxybutanol, cyclohexanol, furfuryl alcohol, tetrahydrofurfuryl alcohol, benzyl alcohol, and methylcyclohexanol.

[0223] Examples of the organic solvent include halogen-based organic solvents, nitrogen-containing compounds, sulfur-containing compounds, siloxane compounds, and fluorine-containing organic solvents.

[0224] Specific examples of halogen-based organic solvents include dichloromethane, chloroform, carbon tetrachloride, dichloroethane, chlorobenzene, o-chlorotoluene, m-chlorotoluene, p-chlorotoluene, m-dichlorobenzene, and 1,2,3-trichloropropane.

[0225] Examples of the nitrogen-containing compound include nitrobenzene, acetonitrile, benzonitrile, N,N-dimethylformamide, N,N-dimethylacetamide, N-methylpyrrolidone, and 1,3-dimethyl-2-imidazolidinone.

[0226] Examples of sulfur-containing compounds include carbon disulfide and dimethyl sulfoxide.

[0227] Examples of the siloxane compound include hexamethyldisiloxane, hexaethyldisiloxane, octamethyltrisiloxane, octaethyltrisiloxane, hexamethylcyclotrisiloxane, hexaethylcyclotrisiloxane, octamethylcyclotetrasiloxane, octaethylcyclotetrasiloxane, and decamethyltetrasiloxane.

[0228] Examples of the fluorine-containing organic solvent include polyfluoroaromatic hydrocarbons (e.g., 1,3-bis(trifluoromethyl)benzene); polyfluoroaliphatic hydrocarbons (e.g., C ６ F １３ CH ２ CH ３ (e.g., Asahiklin (registered trademark) AC-6000 manufactured by AGC Corporation), 1,1,2,2,3,3,4-heptafluorocyclopentane (e.g., Zeorora (registered trademark) H manufactured by Zeon Corporation); hydrofluoroethers (HFEs) (e.g., perfluoropropyl methyl ether (C ３ F ７ OCH ３ ) (e.g., Novec™ 7000 manufactured by Sumitomo 3M Limited), perfluorobutyl methyl ether (C ４ F ９ OCH ３ ) (e.g., Novec (trademark) 7100 manufactured by Sumitomo 3M Limited), perfluorobutyl ethyl ether (C ４ F ９ O.C. ２ H ５ ) (e.g., Novec (trademark) 7200 manufactured by Sumitomo 3M Limited), perfluorohexyl methyl ether (C ２ F ５ CF (OCH ３ ) C ３ F ７ ) (e.g., Novec™ 7300 manufactured by Sumitomo 3M Limited) and other alkyl perfluoroalkyl ethers (the perfluoroalkyl group and the alkyl group may be linear or branched), and CF ３ CH ２ OCF ２ CHF ２(for example, Asahiklin (registered trademark) AE-3000 manufactured by AGC); hydrofluoroolefins (HFOs) (for example, 1-chloro-2,3,3-trifluoro-1-propene (HCFO-1233yd) (for example, Amorea (registered trademark) AS-300 manufactured by AGC), Opteon (registered trademark) SF01, SF05, SF10, SF30, SF33, SF70, SF79, SF80 manufactured by Chemours).

[0229] The content of the liquid medium is preferably 50 to 99.999 mass%, more preferably 80 to 99.99 mass%, and even more preferably 90 to 99.9 mass%, based on the total amount of the composition of the present disclosure. In the case of a composition of the present disclosure used in a wet coating method, the content of the liquid medium may be 90 to 99.99 mass%, 95 to 99.98 mass%, 97 to 99.97 mass%, or 98 to 99.95 mass%, based on the total amount of the composition of the present disclosure.

[0230] <Other Components> The composition of the present disclosure may contain other components in addition to the compound (A) and the liquid medium, as long as the effects of the present disclosure are not impaired. Examples of other components include the group Y in the compound (A). ２ Examples of suitable additives include known additives such as acid catalysts and basic catalysts that promote the hydrolysis and condensation reaction of the above.

[0231] The catalyst may be any appropriate acid or base, transition metal (e.g., Ti, Ni, Sn, Zr, Al, B, etc.), sulfur-containing compounds having an unshared electron pair in their molecular structure, nitrogen-containing compounds (e.g., sulfoxide compounds, aliphatic amine compounds, aromatic amine compounds, phosphoric acid amide compounds, amide compounds, urea compounds), etc. Examples of acid catalysts include acetic acid, formic acid, trifluoroacetic acid, hydrochloric acid, nitric acid, sulfuric acid, phosphoric acid, sulfonic acid, methanesulfonic acid, and p-toluenesulfonic acid. Examples of base catalysts include ammonia, sodium hydroxide, potassium hydroxide, and organic amines such as triethylamine and diethylamine.

[0232] Other components also include metal compounds having a hydrolyzable group (hereinafter, metal compounds having a hydrolyzable group are also referred to as "specific metal compounds"). When the composition of the present disclosure contains a specific metal compound, the slip properties and antifouling properties of the surface treatment layer can be further improved. Examples of the specific metal compounds include those represented by the following formulas (M1) to (M3).

[0233] M (X ｂ１ ) ｍ１１ (X ｂ２ ) ｍ１２ (X ｂ３ ) ｍ１３ ... (M1) Si (X ｂ４ ) (X ｂ５ ) ３ ... (M2) (X ｂ６ ) ３ Si-(Y ｂ１ )-Si(X ｂ７ ) ３ …(M3)

[0234] In formula (M1), M represents a trivalent or tetravalent metal atom. ｂ１ each independently represents a hydrolyzable group. ｂ２ each independently represents a siloxane skeleton-containing group. ｂ３ each independently represents a hydrocarbon chain-containing group, m11 is an integer of 2 to 4, m12 and m13 are each independently an integer of 0 to 2, when M is a trivalent metal atom, m11 + m12 + m13 is 3, and when M is a tetravalent metal atom, m11 + m12 + m13 is 4.

[0235] In formula (M2), X ｂ４ represents a hydrolyzable silane oligomer residue. ｂ５ each independently represents a hydrolyzable group or an alkyl group having 1 to 4 carbon atoms.

[0236] In formula (M3), X ｂ６ and X ｂ７ each independently represents a hydrolyzable group or a hydroxyl group. ｂ１ represents a divalent organic group.

[0237] In formula (M1), the metal represented by M also includes semimetals such as Si and Ge. M is preferably a trivalent metal or a tetravalent metal, more preferably Al, Fe, In, Hf, Si, Ti, Sn, or Zr, still more preferably Al, Si, Ti, or Zr, and particularly preferably Si.

[0238] In formula (M1), X ｂ１ The hydrolyzable group represented by the formula (1) includes the group represented by the formula [—Si(R ２ ) ｎ L ３－ｎ Examples of the hydrolyzable group include the same as the hydrolyzable group represented by L in the formula (1).

[0239] X ｂ２ The siloxane skeleton-containing group represented by the formula (I) has a siloxane unit (—Si—O—) and may be linear or branched. Examples of the siloxane unit include a dialkylsilyloxy group, such as a dimethylsilyloxy group or a diethylsilyloxy group. The number of repeating siloxane units in the siloxane skeleton-containing group is 1 or more, preferably 1 to 5, more preferably 1 to 4, and even more preferably 1 to 3. The siloxane skeleton-containing group may contain a divalent hydrocarbon group as part of the siloxane skeleton. Specifically, some oxygen atoms in the siloxane skeleton may be replaced with a divalent hydrocarbon group. Examples of the divalent hydrocarbon group include alkylene groups such as methylene, ethylene, propylene, and butylene. A hydrolyzable group, a hydrocarbon group (preferably an alkyl group), or the like may be bonded to the terminal silicon atom of the siloxane skeleton-containing group. The number of elements in the siloxane skeleton-containing group is preferably 100 or less, more preferably 50 or less, and even more preferably 30 or less. The number of elements is preferably 10 or more. Examples of the siloxane skeleton-containing group include: ＊ -(O-Si(CH ３ ) ２ ) ｎ CH ３ In this case, n is an integer of 1 to 5, and * represents a bonding site with an adjacent atom.

[0240] X ｂ３The hydrocarbon chain-containing group represented by the formula (I) may be a group consisting of only a hydrocarbon chain, or may be a group having an etheric oxygen atom between carbon atoms in the hydrocarbon chain. The hydrocarbon chain may be a straight chain or a branched chain, with a straight chain being preferred. The hydrocarbon chain may be a saturated hydrocarbon chain or an unsaturated hydrocarbon chain, with a saturated hydrocarbon chain being preferred. The number of carbon atoms in the hydrocarbon chain-containing group is preferably 1 to 3, more preferably 1 to 2, and even more preferably 1. The hydrocarbon chain-containing group is preferably an alkyl group, and more preferably a methyl group, an ethyl group, or a propyl group.

[0241] m1 is preferably 3 or 4.

[0242] As the compound represented by formula (M1), compounds represented by the following formulas (M1-1) to (M1-5) in which M is Si are preferred, and the compound represented by formula (M1-1) is more preferred. As the compound represented by formula (M1-1), tetraethoxysilane, tetramethoxysilane, and triethoxymethylsilane are preferred.

[0243] Si(X ｂ１ ) ４ ... (M1-1) CH ３ -Si(X ｂ１ ) ３ 　 …(M1-2) C ２ H ５ -Si(X ｂ１ ) ３ ...(M1-3) n-C ３ H ７ -Si(X ｂ１ ) ３ ...(M1-4) (CH ３ ) ２ CH—Si(X ｂ１ ) ３ …(M1-5)

[0244] In formula (M2), X ｂ４The number of silicon atoms contained in the hydrolyzable silane oligomer residue represented by the formula (I) is preferably 3 or more, more preferably 5 or more, and even more preferably 7 or more. The number of silicon atoms is preferably 15 or less, more preferably 13 or less, and even more preferably 10 or less. The hydrolyzable silane oligomer residue may have an alkoxy group bonded to a silicon atom. Examples of the alkoxy group include a methoxy group, an ethoxy group, a propoxy group, and a butoxy group, with a methoxy group and an ethoxy group being preferred. The hydrolyzable silane oligomer residue may have one or more of these alkoxy groups, and preferably has one type. Examples of the hydrolyzable silane oligomer residue include (C ２ H ５ O) ３ Si-(OSi(OC) ２ H ５ ) ２ ) ４ O- ＊ Here, * represents a bonding site with an adjacent atom.

[0245] In formula (M2), X ｂ５ The hydrolyzable group represented by the formula (I) is the reactive silyl group represented by the formula (I). ２ ) ｎ L ３－ｎ Examples of the hydrolyzable group include the same as the hydrolyzable group represented by L in the formula (1), a cyano group, a hydrogen atom, and an allyl group, and an alkoxy group or an isocyanato group is preferred. The alkoxy group is preferably an alkoxy group having 1 to 4 carbon atoms. X ｂ５ As the group, a hydrolyzable group is preferred.

[0246] The compound represented by formula (M2) includes (H ５ C ２ O) ３ -Si-(OSi(OC) ２ H ５ ) ２ ) ４ O.C. ２ H ５ etc.

[0247] The compound represented by formula (M3) is a compound having reactive silyl groups at both ends of a divalent organic group, i.e., a bissilane. ｂ６and X ｂ７ Examples of the hydrolyzable group represented by formula (M3) include an alkoxy group, an acyloxy group, a ketoxime group, an alkenyloxy group, an amino group, an aminoxy group, an amide group, an isocyanato group, and a halogen atom, and an alkoxy group and an isocyanato group are preferred. As the alkoxy group, an alkoxy group having 1 to 4 carbon atoms is preferred, and a methoxy group and an ethoxy group are more preferred. In formula (M3), X ｂ６ and X ｂ７ may be the same group or different groups. ｂ６ and X ｂ７ are preferably the same group.

[0248] In formula (M3), Y ｂ１ is a divalent organic group that connects the reactive silyl groups at both ends. ｂ１ The number of carbon atoms in Y is preferably 1 to 8, and more preferably 1 to 3. ｂ１ Examples of the alkylene group include an alkylene group, a phenylene group, and an alkylene group having an etheric oxygen atom between carbon atoms. ２ CH ２ -, -CH ２ CH ２ CH ２ -, -CH ２ CH ２ CH ２ CH ２ -, -CH ２ CH ２ CH ２ CH ２ CH ２ -, -CH ２ CH ２ CH ２ CH ２ CH ２ CH ２ -, -CH ２ C(CH ３ ) ２ CH ２ -, -C(CH ３ ) ２ CH ２ CH ２ C(CH ３ ) ２ -, -CH ２ CH ２ OCH２ CH ２ -, -CH ２ CH ２ CH ２ OCH ２ CH ２ CH ２ -, -CH(CH ３ ) CH ２ OCH ２ CH (CH ３ ) -, -C ６ H ４ - are listed.

[0249] The compound represented by formula (M3) includes (CH ３ O) ３ Si(CH ２ ) ２ Si(OCH ３ ) ３ , (C ２ H ５ O) ３ Si(CH ２ ) ２ Si(OC ２ H ５ ) ３ , (OCN) ３ Si(CH ２ ) ２ Si(NCO) ３ , Cl ３ Si(CH ２ ) ２ SiCl ３ , (CH ３ O) ３ Si(CH ２ ) ６ Si(OCH ３ ) ３ , (C ２ H ５ O) ３ Si(CH ２ ) ６ Si(OC ２ H ５ ) ３ Examples include:

[0250] The content of other components that may be included in the composition of the present disclosure is preferably 10% by mass or less, and more preferably 1% by mass or less, relative to the total amount of the composition of the present disclosure. When the composition of the present disclosure contains a specific metal compound, the content of the specific metal compound is preferably 0.01 to 30% by mass, more preferably 0.01 to 10% by mass, and even more preferably 0.05 to 5% by mass, relative to the total amount of the composition of the present disclosure.

[0251] The total content of compound (A) and other components (hereinafter also referred to as "solid content concentration") is preferably 0.001 to 50 mass%, more preferably 0.01 to 20 mass%, and even more preferably 0.1 to 10 mass%, relative to the total amount of the composition of the present disclosure. The solid content concentration of the composition of the present disclosure is a value calculated from the mass before heating and the mass after heating for 4 hours in a convection dryer at 120°C.

[0252] When the composition of the present disclosure includes a liquid medium, the composition of the present disclosure is useful for coating purposes and can be used as a coating liquid.

[0253] [Surface Treatment Agent] The surface treatment agent of the present disclosure is the above-described composition. １ The surface treatment agent of the present disclosure contains two or more compounds (A) in which at least one of the groups T and Y is different, and may contain a liquid medium as needed, or may contain other components in addition to the compound (A) and the liquid medium. １ Since the compound (A) contains two or more types of compounds, at least one of which is different, it is possible to form a surface treatment layer that has a good balance of antifouling properties, fingerprint removability, and slipperiness.

[0254] [Article] In one embodiment, the article of the present disclosure includes a substrate and a surface treatment layer disposed on the substrate and surface-treated with the surface treatment agent of the present disclosure.

[0255] The surface treatment layer may be formed on a part of the surface of the substrate, or may be formed on the entire surface of the substrate. The surface treatment layer may be spread in the form of a film on the surface of the substrate, or may be scattered in the form of dots. In the surface treatment layer, the compound (A) contained in the composition of the present disclosure is a compound having a group Y ２is contained in a state in which partial or total hydrolysis has progressed and the dehydration condensation reaction of the silanol groups has progressed.

[0256] The thickness of the surface treatment layer is preferably 1 to 100 nm, more preferably 1 to 50 nm. If the thickness of the surface treatment layer is 1 nm or more, the effect of the surface treatment is likely to be sufficient. If the thickness of the surface treatment layer is 100 nm or less, the utilization efficiency is high. The thickness of the surface treatment layer can be calculated from the oscillation period of the interference pattern obtained by X-ray reflectivity using a thin film analysis X-ray diffractometer (product name "ATX-G", manufactured by RIGAKU Corporation).

[0257] The type of substrate is not particularly limited, and examples thereof include substrates that are required to be water-repellent. Examples of substrates include substrates that may be used by contacting other articles (e.g., stylus) or human fingers; substrates that may be held by human fingers during operation; and substrates that may be placed on other articles (e.g., a mounting table). Examples of substrate materials include metal, resin, glass, sapphire, ceramic, semiconductor, stone, fiber, nonwoven fabric, paper, wood, fur, natural leather, artificial leather, ceramics, and composite materials thereof. Glass may be chemically strengthened.

[0258] Examples of the substrate include glass or resin used for building materials, decorative building materials, interior goods, transportation equipment (e.g., automobiles), signs, bulletin boards, drinking vessels, tableware, aquariums, ornamental equipment (e.g., frames, boxes), laboratory equipment, furniture, textile products, packaging containers, art, sports, games, etc., and glass or resin used for the exterior parts (excluding display parts) of devices such as mobile phones (e.g., smartphones), personal digital assistants, game consoles, remote controls, etc. The shape of the substrate may be a plate or a film.

[0259] The substrate is preferably a substrate for a touch panel, a substrate for a display, or a lens for glasses, and is particularly preferably a substrate for a touch panel.The material of the substrate for a touch panel is preferably glass or a transparent resin.

[0260] The substrate may be a substrate whose one or both surfaces have been subjected to a surface treatment such as corona discharge treatment, plasma treatment, or plasma graft polymerization treatment. A surface-treated substrate has better adhesion to the surface treatment layer and further improved abrasion resistance of the surface treatment layer. Therefore, it is preferable to perform the surface treatment on the surface of the substrate that comes into contact with the surface treatment layer. Furthermore, when a base layer described below is provided on the surface-treated substrate, it has better adhesion to the base layer and further improved abrasion resistance of the surface treatment layer. Therefore, when a base layer is provided, it is preferable to perform the surface treatment on the surface of the substrate that comes into contact with the base layer.

[0261] The surface treatment layer may be provided directly on the surface of the substrate, or a primer layer may be provided between the substrate and the surface treatment layer. From the viewpoint of further improving the water repellency and abrasion resistance of the surface treatment layer, the article of the present disclosure preferably includes a substrate, a primer layer disposed on the substrate, and a surface treatment layer surface-treated with the surface treatment agent of the present disclosure, disposed on the primer layer.

[0262] The underlayer is preferably a layer containing an oxide containing silicon and at least one specific element selected from the group consisting of Group 1 elements, Group 2 elements, Group 4 elements, Group 5 elements, Group 13 elements, and Group 15 elements of the periodic table.

[0263] The Group 1 elements of the periodic table (hereinafter also referred to as "Group 1 elements") refer to lithium, sodium, potassium, rubidium, and cesium. As the Group 1 elements, lithium, sodium, and potassium are preferred, and sodium and potassium are more preferred, from the viewpoint of enabling a surface treatment layer to be formed more uniformly on the underlayer without defects, or from the viewpoint of further suppressing variation in the composition of the underlayer between samples. The underlayer may contain two or more types of Group 1 elements.

[0264] The Group 2 elements of the periodic table (hereinafter also referred to as "Group 2 elements") refer to beryllium, magnesium, calcium, strontium, and barium. As the Group 2 elements, magnesium, calcium, and barium are preferred, and magnesium and calcium are more preferred, from the viewpoint of enabling a surface treatment layer to be formed more uniformly on the underlayer without defects, or from the viewpoint of further suppressing variation in the composition of the underlayer between samples. The underlayer may contain two or more Group 2 elements.

[0265] The Group 4 elements of the periodic table (hereinafter also referred to as "Group 4 elements") refer to titanium, zirconium, and hafnium. As the Group 4 elements, titanium and zirconium are preferred, and titanium is more preferred, from the viewpoint of being able to form a surface treatment layer on the underlayer more uniformly without defects, or from the viewpoint of further suppressing variation in the composition of the underlayer between samples. The underlayer may contain two or more types of Group 4 elements.

[0266] The Group 5 elements of the periodic table (hereinafter also referred to as "Group 5 elements") refer to vanadium, niobium, and tantalum. As the Group 5 element, vanadium is particularly preferred from the viewpoint of providing a surface treatment layer with better abrasion resistance. The underlayer may contain two or more Group 5 elements.

[0267] The Group 13 elements of the periodic table (hereinafter also referred to as "Group 13 elements") refer to boron, aluminum, gallium, and indium. As the Group 13 elements, boron, aluminum, and gallium are preferred, and boron and aluminum are more preferred, from the viewpoint of enabling the surface treatment layer to be formed more uniformly on the underlayer without defects, or from the viewpoint of further suppressing variation in the composition of the underlayer between samples. The underlayer may contain two or more Group 13 elements.

[0268] The Group 15 elements of the periodic table (hereinafter also referred to as "Group 15 elements") refer to nitrogen, phosphorus, arsenic, antimony, and bismuth. As the Group 15 elements, phosphorus, antimony, and bismuth are preferred, and phosphorus and bismuth are more preferred, from the viewpoint of enabling a surface treatment layer to be formed more uniformly on the underlayer without defects, or from the viewpoint of further suppressing variation in the composition of the underlayer between samples. The underlayer may contain two or more Group 15 elements.

[0269] As the specific element contained in the underlayer, Group 1 elements, Group 2 elements, and Group 13 elements are preferred because they provide better abrasion resistance to the surface treatment layer, and Group 1 elements and Group 2 elements are more preferred, with Group 1 elements being even more preferred. The specific element may contain only one type of element or two or more types of elements.

[0270] The oxide contained in the underlayer may be a mixture of oxides of the above elements (silicon and the specific element) alone (for example, a mixture of silicon oxide and an oxide of the specific element), a composite oxide containing two or more of the above elements, or a mixture of an oxide of the above elements alone and a composite oxide.

[0271] From the viewpoint of achieving superior abrasion resistance of the surface treatment layer, the ratio of the total molar concentration of the specific elements in the underlayer to the molar concentration of silicon in the underlayer (specific elements / silicon) is preferably 0.02 to 2.90, more preferably 0.10 to 2.00, and even more preferably 0.20 to 1.80. The molar concentrations (mol %) of each element in the underlayer can be measured, for example, by depth profile analysis by X-ray photoelectron spectroscopy (XPS) using ion sputtering.

[0272] The underlayer may be a single layer or multiple layers. The underlayer may have an uneven surface. The thickness of the underlayer is preferably 1 to 100 nm, more preferably 1 to 50 nm, and even more preferably 2 to 20 nm. When the thickness of the underlayer is equal to or greater than the above lower limit, the adhesion of the underlayer to the surface treatment layer is further improved, and the surface treatment layer has better abrasion resistance. When the thickness of the underlayer is equal to or less than the above upper limit, the underlayer itself has excellent abrasion resistance. The thickness of the underlayer is measured by observing the cross section of the underlayer using a transmission electron microscope (TEM).

[0273] The underlayer can be formed by, for example, a vapor deposition method using a vapor deposition material or a wet coating method.

[0274] The deposition material used in the deposition method preferably contains an oxide containing silicon and a specific element. Specific examples of the form of the deposition material include powder, melt, sintered body, granules, and crushed body, with melt, sintered body, and granules being preferred from the viewpoint of ease of handling. Here, the melt refers to a solid obtained by melting the powder of the deposition material at a high temperature and then cooling and solidifying it. The sintered body refers to a solid obtained by firing the powder of the deposition material. If necessary, a molded body obtained by pressing the powder may be used instead of the powder of the deposition material. The granule refers to a solid obtained by kneading the powder of the deposition material with a liquid medium (e.g., water, organic solvent) to obtain particles, and then drying the particles.

[0275] The vapor deposition material can be produced by, for example, the following methods: A method of mixing silicon oxide powder with a powder of an oxide of a specific element to obtain a vapor deposition material powder. A method of kneading the vapor deposition material powder with water to obtain particles, and then drying the particles to obtain granules of the vapor deposition material. A method of mixing a powder containing silicon (e.g., silicon oxide powder, silica sand, silica gel), a powder containing a specific element (e.g., oxide powder, carbonate, sulfate, nitrate, oxalate, hydroxide of the specific element), and water, drying the mixture, and then firing the dried mixture or a compact obtained by pressing the dried mixture to obtain a sintered body. A method of melting a powder containing silicon (e.g., silicon oxide powder, silica sand, silica gel) and a powder containing a specific element (e.g., oxide powder, carbonate, sulfate, nitrate, oxalate, hydroxide of the specific element) at a high temperature, and then cooling and solidifying the melt to obtain a melt.

[0276] A specific example of a vapor deposition method using a vapor deposition material is a vacuum vapor deposition method. The vacuum vapor deposition method is a method in which a vapor deposition material is evaporated in a vacuum chamber and attached to the surface of a substrate. The temperature during vapor deposition (for example, the temperature of the boat in which the vapor deposition material is placed when a vacuum vapor deposition apparatus is used) is preferably 100 to 3,000°C, and more preferably 500 to 3,000°C. The pressure during vapor deposition (for example, the pressure in the chamber in which the vapor deposition material is placed when a vacuum vapor deposition apparatus is used) is preferably 1 Pa or less, and more preferably 0.1 Pa or less. When forming an underlayer using a vapor deposition material, one vapor deposition material may be used, or two or more vapor deposition materials containing different elements may be used.

[0277] Specific examples of evaporation methods for the deposition material include a resistance heating method, in which the deposition material is melted and evaporated on a resistance heating boat made of a high-melting-point metal, and an electron gun method, in which the deposition material is irradiated with an electron beam to directly heat the deposition material, melting and evaporating the surface. The electron gun method is preferred as an evaporation method for the deposition material because it can evaporate high-melting-point substances due to its ability to locally heat the material, and because areas not irradiated by the electron beam are at low temperatures, eliminating the risk of reaction with the container or the inclusion of impurities. The evaporation method for the deposition material may use multiple boats, or all of the deposition materials may be placed in a single boat. The deposition method may be co-evaporation or alternating deposition. Specific examples include mixing silica and a specific source in the same boat, co-evaporating silica and a specific element source in separate boats, or similarly placing them in separate boats and alternately depositing them. The deposition conditions, order, etc., are appropriately selected depending on the composition of the underlayer.

[0278] In the wet coating method, it is preferable to form an undercoat layer on a substrate by a wet coating method using a coating liquid containing a silicon-containing compound, a compound containing a specific element, and a liquid medium.

[0279] Specific examples of the silicon compound include silicon oxide, silicic acid, partial condensates of silicic acid, alkoxysilanes, and partial hydrolysis condensates of alkoxysilanes.

[0280] Specific examples of compounds containing a specific element include oxides of the specific element, alkoxides of the specific element, carbonates of the specific element, sulfates of the specific element, nitrates of the specific element, oxalates of the specific element, and hydroxides of the specific element.

[0281] The liquid medium may be the same as the liquid medium that may be included in the composition of the present disclosure.

[0282] The content of the liquid medium is preferably 80 to 99.99% by mass, more preferably 90 to 99.9% by mass, based on the total amount of the coating liquid used to form the underlayer.

[0283] Specific examples of wet coating methods for forming the underlayer include spin coating, wipe coating, spray coating, squeegee coating, dip coating, die coating, inkjet coating, flow coating, roll coating, casting, Langmuir-Blodgett coating, and gravure coating.

[0284] After wet-coating the coating liquid, it is preferable to dry the coating film. The drying temperature for the coating film is preferably 20 to 200°C, more preferably 80 to 160°C.

[0285] The article of the present disclosure may be an optical material having a surface treatment layer as the outermost layer. Examples of the optical material include optical materials related to displays and the like, as well as a wide variety of other optical materials. Examples of the optical material include displays such as cathode ray tubes (CRTs; for example, personal computer monitors), liquid crystal displays, plasma displays, organic electroluminescent displays, inorganic thin-film electroluminescent dot matrix displays, rear projection displays, fluorescent display tubes (VFDs), and field emission displays (FEDs), as well as protective plates for such displays, or displays whose surfaces have been treated with an anti-reflection film.

[0286] The article of the present disclosure is preferably an optical member. Examples of optical members include car navigation systems, mobile phones, smartphones, digital cameras, digital video cameras, PDAs, portable audio players, car audio systems, game consoles, eyeglass lenses, camera lenses, lens filters, sunglasses, medical equipment such as gastroscopes, copiers, PCs, displays (e.g., liquid crystal displays, organic EL displays, plasma displays, touch panel displays), touch panels, protective films, and anti-reflection films. Examples of optical members include front protective plates, anti-reflection plates, polarizing plates, and anti-glare plates for displays such as PDPs and LCDs; disc surfaces of optical discs such as Blu-ray (registered trademark) discs, DVD discs, CD-Rs, and MO discs; optical fibers; and the display surfaces of watches. In particular, the article of the present disclosure is preferably a display or a touch panel.

[0287] The article of the present disclosure may be a medical device or a medical material. The article of the present disclosure may also be an automobile interior or exterior component. Examples of exterior components include windows, light covers, and exterior camera covers. Examples of interior components include instrument panel covers, navigation system touch panels, and decorative interior components.

[0288] When the article of the present disclosure is an optical component, the material constituting the surface of the substrate is a material for optical components, such as glass or transparent plastic. When the article of the present disclosure is an optical component, a functional layer such as a hard coat layer or an anti-reflection layer may be formed on the surface (outermost layer) of the substrate. The anti-reflection layer may be either a single-layer anti-reflection layer or a multi-layer anti-reflection layer. Examples of inorganic materials that can be used for the anti-reflection layer include SiO ２ , SiO, ZrO ２ , TiO ２ , TiO, Ti ２ O ３ , Ti ２ O ５ , Al ２ O ３ , Ta ２ O ５ , Ta ３ O ５ , Nb２ O ５ , HfO ２ , Si ３ N ４ , CeO ２ , MgO, Y ２ O ３ , SnO ２ , MgF ２ , and W.O. ３ These inorganic substances may be used alone or in combination of two or more (for example, as a mixture). When a multi-layer antireflection layer is formed, the outermost layer may contain SiO ２ and / or SiO is preferably used. When the article of the present disclosure is an optical glass component for a touch panel, a transparent electrode, for example, a thin film using indium tin oxide (ITO) or indium zinc oxide, may be provided on a portion of the surface of the substrate (glass). Furthermore, the substrate may have an insulating layer, an adhesive layer, a protective layer, a decorative frame layer (I-CON), an atomization film layer, a hard coating film layer, a polarizing film, a phase difference film, a liquid crystal display module, or the like, depending on its specific specifications.

[0289] [Method for manufacturing an article] The method for manufacturing an article according to the present disclosure is, for example, a method for manufacturing an article having a surface-treated layer formed on a substrate by performing a surface treatment on a substrate using the surface treatment agent according to the present disclosure. Examples of the surface treatment include a dry coating method and a wet coating method.

[0290] Examples of dry coating methods include vacuum deposition, CVD, and sputtering. Vacuum deposition is preferred as a dry coating method from the viewpoints of suppressing decomposition of the compound and simplicity of the equipment. For vacuum deposition, a pellet-shaped substance obtained by impregnating a metal porous body such as iron or steel with the compound of the present disclosure may be used. A composition containing the compound of the present disclosure and a liquid medium may be impregnated into a metal porous body such as iron or steel, and the liquid medium may be dried to obtain a pellet-shaped substance impregnated with the compound of the present disclosure.

[0291] Examples of wet coating methods include spin coating, wipe coating, spray coating, squeegee coating, dip coating, die coating, inkjet coating, flow coating, roll coating, casting, Langmuir-Blodgett coating, and gravure coating.

[0292] In order to improve the abrasion resistance of the surface treatment layer, an operation to promote the reaction between the compound of the present disclosure and the substrate may be performed as necessary. Examples of such an operation include heating, humidification, and light irradiation. For example, the substrate on which the surface treatment layer is formed can be heated in a humid atmosphere to promote reactions such as the hydrolysis reaction of hydrolyzable groups, the reaction between hydroxyl groups on the surface of the substrate and silanol groups, and the formation of siloxane bonds through the condensation reaction of silanol groups. After surface treatment, compounds in the surface treatment layer that are not chemically bonded to other compounds or the substrate may be removed as needed. Examples of removal methods include pouring a solvent over the surface treatment layer and wiping with a cloth soaked in the solvent.

[0293] The present invention will be explained in more detail below using examples, but the present invention is not limited to these examples.

[0294] [Synthesis of Compound A5] Under a nitrogen atmosphere, 2,3,4,5,6-pentafluorophenol (6.8 g), THF (tetrahydrofuran, 42 mL), and triethylamine (5.1 g) were added to a 100 mL flask and stirred at 25°C. 10-Undecenoyl chloride (5.0 g) was added dropwise to the reaction mixture, and the mixture was stirred for 1 hour. The reaction solution was filtered, and the solvent and low-boiling components were distilled off under reduced pressure. 7.9 g of Compound A1 was obtained by flash column chromatography using silica gel (developing solvent: hexane / ethyl acetate). The structure of Compound A1 was confirmed by the following NMR data.

[0295]

[0296] １ H-NMR (400 MHz, CDCl ３ ​) δ5.74 (ddt, J = 16.9, 10.2, 6.6 Hz, 1H), 5.05 - 4.77 (m, 2H), 2.59 (t, J = 7.4 Hz, 2H), 1.97 (q, J = 7.1 Hz, 2H), 1.70 (p, J = 7.4 Hz, 2H), 1.42 - 1.08 (m, 10H).

[0297] Under a nitrogen atmosphere, compound A1 (5.6 g), THF (5.0 mL), chlorodimethylsilane (2.3 g), and a xylene solution of platinum / 1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex (platinum content: 3% by mass, 0.10 mL) were placed in a 200 mL flask and stirred at 25°C for 2 hours. The solvent and low-boiling components were removed by distillation under reduced pressure, yielding 7.2 g of compound A2. The structure of compound A2 was confirmed by the following NMR data.

[0298]

[0299] １ H-NMR (400 MHz, CDCl ３ ) δ 2.63 (t, J = 7.4 Hz, 2H), 1.74 (p, J = 7.4 Hz, 2H), 1.46 - 1.17 (m, 14H), 0.90 - 0.69 (m, 2H), 0.37 (s, 6H).

[0300] ​Under a nitrogen atmosphere, tris(trimethylsiloxy)silanol (1.3 g) and THF (20 mL) were added to a 200 mL three-neck flask and stirred. The mixture was cooled to 0°C, and a hexane solution of n-BuLi (1.6 M, 2.4 mL) was added dropwise. A THF solution of hexamethylcyclotrisiloxane (1.0 M, 4.4 mL) was added dropwise, followed by a THF solution of hexamethylcyclotrisiloxane (1.0 M, 22 mL) and stirring for 6 hours. Compound A2 (3.6 g) was then added, and the mixture was stirred for 24 hours. Hexane and ion-exchanged water were added sequentially to the reaction solution, followed by separation, and the organic layer was isolated. The solvent and low-boiling point components were distilled off under reduced pressure, and then flash column chromatography using silica gel (developing solvent: hexane / ethyl acetate) was performed to obtain 5.5 g of compound A3. The structure of Compound A3 was confirmed by the following NMR data: In Compound A3, the average value of m was 23.

[0301]

[0302] １ H-NMR (400 MHz, CDCl ３ ) δ 2.58 (t, J = 7.4 Hz, 2H), 1.70 (p, J = 7.4 Hz, 2H), 1.41 - 1.07 (m, 14H), 0.45 (t, J = 7.4 Hz, 2H), 0.10 (s, 171H).

[0303] Compound A3 (1.0 g), 1,3-bis(trifluoromethyl)benzene (1.5 g), and 2,2-diallylpent-4-en-1-amine (0.25 g) were added to a 200 mL flask and stirred at 25°C for 3 hours. Hexane and ion-exchanged water were added sequentially to the reaction solution, followed by separation and the organic layer was separated. The solvent and low-boiling components were distilled off under reduced pressure, and then flash column chromatography using silica gel (developing solvent: hexane / ethyl acetate) was performed to obtain 0.35 g of compound A4. The structure of compound A4 was confirmed by the following NMR data. The average value of m in compound A4 was 23.

[0304]

[0305] １ H-NMR (400 MHz, CDCl​​３ ) δ 5.80 (ddt, J = 17.7, 10.6, 7.4 Hz, 3H), 5.15 - 4.90 (m, 6H), 3.12 (d, J = 6.3 Hz, 2H), 2.09 (t, J = 7.5 Hz, 2H), 1.96 (dd, J = 7.6, 1.3 Hz, 6H), 1.34 - 1.07 (m, 16H), 0.45 (t, J = 7.6 Hz, 2H), 0.06 - -0.10 (m, 171H).

[0306] Dichloromethane (10 g), Compound A4 (0.33 g), a toluene solution of platinum / 1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex (platinum content: 3% by mass, 4.1 mg), aniline (2.6 mg), and trimethoxysilane (0.40 g) were placed in a 100 mL flask and stirred at 25°C for 2 hours. The solvent was distilled off under reduced pressure to obtain 0.38 g of Compound A5. The structure of Compound A5 was confirmed by the following NMR data. The average value of m in Compound A5 was 23.

[0307]

[0308] １ H-NMR (400 MHz, CDCl ３ ) δ 5.66 (d, J = 6.4 Hz, 1H), 3.46 (d, J = 29.0 Hz, 2H), 2.12 (t, J = 7.5 Hz, 2H), 1.61 - 1.42 (m, 2H), 1.32 - 1.02 (m, 26H), 0.53 (t, J = 7.7 Hz, 6H), 0.45 (t, J = 7.0 Hz, 2H), 0.22 - -0.24 (m, 171H).

[0309] [Synthesis of Compound A6] Compound A6 was obtained according to the synthesis method described in Synthesis Example 26 of JP-A No. 2024-025757.

[0310]

[0311] ​[Synthesis of Compound B2] Under a nitrogen atmosphere, 5.0 g of carboxylic acid-terminated polydimethylsiloxane (the average value of m is 16, the number of carbon atoms in the alkylene group linked to the carboxy group is 10, manufactured by Gelest, product number MCR-B12), methylene chloride (20 mL), and oxalyl chloride (1.3 g) were placed in a 200 mL flask and stirred at 25°C for 2 hours. The solvent and low-boiling point components were removed by distillation under reduced pressure, and then 2,2-diallylpent-4-en-1-amine (1.2 g), methylene chloride (20 mL), and triethylamine (0.70 g) were added and stirred at 25°C for 2 hours. The solvent and low-boiling point components were removed by distillation under reduced pressure, and then flash column chromatography using silica gel (developing solvent: hexane / ethyl acetate) was performed to obtain 2.2 g of Compound B1. The structure of Compound B1 was confirmed by the following NMR data. The average value of m in Compound B1 was 16.

[0312]

[0313] １ H-NMR (400MHz, Chloroform-d) δ 5.85 (ddt, J = 16.6, 10.5, 7.4 Hz, 3H), 5.48 (s, 1H), 5.17-4.98 (m, 6H), 3.18 (d, J = 6.4 Hz, 2H), 2.19-2.09 (m, 2H), 2.01 (dt, J = 7.4, 1.2 Hz, 6H), 1.54 (m, 2H), 1.40-1.06 (m, 18H), 0.94-0.76 (m, 3H), 0.59-0.38 (m, 4H), 0.05 (s, 102H).

[0314] 1,3-bistrifluoromethylbenzene (2.0 mL), compound B1 (1.0 g), a toluene solution of platinum / 1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex (platinum content: 3% by mass, 15 μL), aniline (4.8 μL), and trimethoxysilane (0.31 g) were placed in a 100 mL recovery flask and stirred at 40°C for 2 hours. The solvent was distilled off under reduced pressure to obtain 1.1 g of compound B2. The structure of compound B2 was confirmed from the following NMR data. The average value of m in compound B2 was 16.

[0315] ​

[0316] １ H-NMR (400 MHz, Chloroform-d) δ 5.65 (t, J = 6.1 Hz, 1H), 3.49 (s, 27H), 3.04 (d, J = 6.2 Hz, 2H), 2.18-2.04 (m, 2H), 1.37-0.95 (m, 32H), 0.95-0.72 (m, 3H), 0.69-0.36 (m, 10H), -0.07 (s, 102H).

[0317] [Synthesis of Compound C1] Compound C1 was obtained according to the synthesis method described in Example 1 of WO 2022 / 030495. In Compound C1, the average value of m was 19.

[0318]

[0319] [Synthesis of Compound C2] Compound C2 was obtained according to the synthesis method described in Synthesis Example 6 of JP-A No. 2024-025757.

[0320]

[0321] [Preparation of Surface Treatment Agent and Formation of Surface Treatment Layer] Heptane was used as a liquid medium, and each compound shown in Tables 3 and 4 was added to the liquid medium in the amount (parts by mass) shown in Tables 3 and 4, and mixed to obtain a surface treatment agent with a solid content concentration of 0.2 mass%. The surface treatment was performed on a substrate using the surface treatment agent. A wet coating method was used as the surface treatment method.

[0322] <Wet Coating Method> 30 g of silicon oxide was placed as a deposition source in a copper hearth in a vacuum deposition apparatus (VTR-350M manufactured by ULVAC Kiko Co., Ltd.). A glass substrate was placed in the vacuum deposition apparatus, and the interior of the vacuum deposition apparatus was heated to 5 × 10 －３ The hearth was evacuated to a pressure of 100 Pa or less. The hearth was heated to about 2,000° C., and silicon oxide was vacuum-deposited on the surface of the substrate. As a result, a silicon oxide layer having a thickness of about 20 nm was formed on the substrate.

[0323] ​The substrate with the silicon oxide layer formed thereon was placed on the sample stage of a spray coater (API-90RS, manufactured by Apiros Co., Ltd.) so that the silicon oxide layer was on the surface. Next, 13 g of the prepared surface treatment agent was placed in a syringe in the spray coater, and spray-coated at an atomization pressure of 130 kPa, a nozzle-to-sample surface distance of 50 mm, and a scanning speed of 300 mm / sec. The coated substrate was then heat-treated at 140°C for 30 minutes. This resulted in an article having a surface-treated layer on the surface of the silicon oxide layer.

[0324] [Evaluation] <Evaluation of Antifouling Properties> The initial water contact angle and initial oleic acid contact angle of the surface treatment layer of the obtained article were measured using the following measurement method to evaluate the antifouling properties. Specifically, approximately 2 μL of distilled water or oleic acid was dropped onto the surface treatment layer of the article, and the initial water contact angle or initial oleic acid contact angle was measured using a contact angle measuring device (product name "DM-500", manufactured by Kyowa Interface Science Co., Ltd.). Measurements were taken at five points on the surface treatment layer, and the average value was calculated. The 2θ method was used to calculate the water contact angle and oleic acid contact angle. The evaluation criteria are as follows, with larger contact angles indicating better antifouling properties. (Evaluation criteria for soil resistance against water) A: Water contact angle is 105 degrees or more B: Water contact angle is 100 degrees or more and less than 105 degrees C: Water contact angle is less than 100 degrees (Evaluation criteria for soil resistance against oil) A: Oleic acid contact angle is 55 degrees or more B: Oleic acid contact angle is 50 degrees or more and less than 55 degrees C: Oleic acid contact angle is less than 50 degrees

[0325] <Evaluation of Slipperiness> The dynamic friction coefficient of the surface of the surface treatment layer of the obtained article was measured in accordance with ASTM D4917 using a surface property measuring instrument (FPT-1 manufactured by Labthink) and paper as a friction element. Specifically, the article having the surface treatment layer was placed horizontally, and a paper friction element (2 cm x 2 cm) was brought into contact with the exposed surface of the surface treatment layer, and a load of 1.96 N was applied thereto. Thereafter, with the load applied, the paper friction element was translated at a speed of 200 mm / sec to measure the dynamic friction coefficient and evaluate the slipperiness. The evaluation criteria are as follows, and the smaller the dynamic friction coefficient, the better the slipperiness. (Evaluation criteria for slipperiness) A: Dynamic friction coefficient less than 0.10 B: Dynamic friction coefficient 0.10 or more but less than 0.15 C: Dynamic friction coefficient 0.15 or more

[0326] <Evaluation of Fingerprint Removability> A 1 kg weight equipped with a 2 cm diameter red rubber stopper to serve as the fingerprint stamp was prepared. Next, 70 μL of artificial fingerprint fluid (manufactured by Isekyu Co., Ltd.) was dropped onto a waste cloth, and the fingerprint stamp was left to adhere to the artificial fingerprint fluid for 1 minute. To remove excess artificial fingerprint fluid from the fingerprint stamp, the fingerprint stamp was left to adhere to a new waste cloth for 20 seconds. Then, an article with a surface treatment layer formed thereon was placed on a hot plate regulated to 23°C. The fingerprint stamp was stamped against the surface treatment layer. The article with the artificial fingerprint fluid attached was placed in a sliding device (product name "HHS-2000", manufactured by Shinto Scientific Co., Ltd.). A wiping cloth (Savina Minimax, manufactured by KB Seiren Co., Ltd.) was attached to a flat indenter with an area of ​​1 cm square using double-sided tape, and the article was then placed in the sliding device. The artificial fingerprint fluid attached to the surface treatment layer was wiped off in one direction with the wiping cloth under a load of 100 g. The haze of the wiped area was measured using a haze meter (product name "NDH7000SP", manufactured by Nippon Denshoku Co., Ltd.) to evaluate fingerprint removability. The evaluation criteria are as follows, with the smaller the haze value, the better the fingerprint removability. (Evaluation criteria for fingerprint removability) A: Haze value less than 0.1% B: Haze value 0.1% or more and less than 0.15% C: Haze value 0.15% or more

[0327] The evaluation results are shown in Tables 3 and 4. Examples 1 to 9 and 13 to 21 are working examples, and Examples 10 to 12 and 22 to 23 are comparative examples.

[0328]

[0329]

[0330] As shown in Table 3, it was found that in Examples 1 to 9, two or more types of compound (1) were contained and a surface treatment layer having a good balance of antifouling properties, fingerprint removability, and slipperiness could be formed. As shown in Table 4, it was found that in Examples 13 to 21, two or more types of compound (A) were contained and a surface treatment layer having a good balance of antifouling properties, fingerprint removability, and slipperiness could be formed.

[0331] The composition and surface treatment agent of the present disclosure can be used for substrates in, for example, display devices such as touch panel displays, optical elements, semiconductor elements, building materials, automotive parts, nanoimprint technology, and the like. The composition and surface treatment agent can also be used for bodies, window glass (windshields, side glass, rear glass), mirrors, bumpers, and the like of transportation equipment such as trains, automobiles, ships, and aircraft. The composition and surface treatment agent can also be used for outdoor items such as building exterior walls, tents, solar power generation modules, soundproofing panels, and concrete; fishing nets, insect nets, and aquariums. The composition and surface treatment agent can also be used for various indoor facilities such as kitchens, bathrooms, sinks, mirrors, and toilet peripherals; ceramics such as chandeliers and tiles; artificial marble, and air conditioners. The composition and surface treatment agent can also be used for antifouling treatments for jigs, interior walls, piping, and the like in factories. The composition and surface treatment agent can also be used for goggles, eyeglasses, helmets, pachinko machines, fibers, umbrellas, playground equipment, and soccer balls. The composition and surface treatment agent can also be used as an anti-adhesion agent for various packaging materials such as food packaging materials, cosmetic packaging materials, the inside of pots, etc. The composition and surface treatment agent can also be used for car navigation systems, mobile phones, smartphones, digital cameras, digital video cameras, PDAs, portable audio players, car audio equipment, game machines, eyeglass lenses, camera lenses, lens filters, sunglasses, medical equipment such as gastroscopes, copiers, PCs, displays (e.g., liquid crystal displays, organic EL displays, plasma displays, touch panel displays), touch panels, protective films, anti-reflection films, and other optical components.

[0332] (Additional Notes) The present disclosure includes the following aspects. <1> A composition containing a first compound and a second compound, wherein the first compound and the second compound are each represented by formula (1), and T in formula (1) of the first compound is different from T in formula (1) of the second compound. T-(Si(R １ ) ２ -O) ｍ -Si(R １ )２ -A-(Si(R ２ ) ｎ L ３－ｎ ) ｑ ...(1) In formula (1), T is a monovalent group, and R １ are each independently a monovalent hydrocarbon group, A is a (q+1)-valent linking group, and R ２ are each independently a monovalent hydrocarbon group, L is each independently a hydrolyzable group, a group having a hydrolyzable group, or a hydroxyl group, m is a number of 1 or more, n is each independently an integer of 0 to 2, and q is an integer of 1 or more. <2> The composition according to <1>, wherein in formula (1), T is a methyl group, a linear alkyl group having 2 or more carbon atoms, an alkyl group having at least one of a branched structure and a cyclic structure and having 3 or more carbon atoms, a group represented by formula (2A), or a group represented by formula (2B). [R １１ -(Si(R １２ ) ２ -O) ｍ１ ] ３ Si—O—* １ ... (2A) R １３ -O-* １ ...(2B) In formulas (2A) to (2B), R １１ are each independently a monovalent hydrocarbon group or a group R １４ ３ Si—O—* ２ and the three R １１ Two or more of the following are R １４ ３ Si—O—* ２ and R １４ are each independently a monovalent hydrocarbon group or a trialkylsilyloxy group, ２ is the bonding site to the silicon atom in formula (2A), and R １２ are each independently a monovalent hydrocarbon group, m1 is each independently a number of 0 or more, R １３ is a monovalent cyclic polysiloxane residue or a monovalent cage-like polysiloxane residue, １is a bonding site to the silicon atom in formula (1). <3> The composition according to <1> or <2>, wherein T in formula (1) of the second compound is a methyl group, a linear alkyl group having two or more carbon atoms, or an alkyl group having three or more carbon atoms and at least one of a branched structure and a cyclic structure. <4> The composition according to any one of <1> to <3>, wherein T in formula (1) of the first compound is a group represented by formula (2A) or a group represented by formula (2B). <5> The composition according to any one of <1> to <4>, wherein q in formula (1) is an integer of 1 to 4. <6> The composition according to any one of <1> to <5>, wherein m in formula (1) is a number of 3 to 500. <7> The composition according to any one of <1> to <6>, further comprising a liquid medium. <8> The surface treatment agent, which is the composition according to any one of <1> to <7>. <9> A method for manufacturing an article, comprising surface treating a substrate using the surface treatment agent according to <8> to manufacture an article having a surface treatment layer formed on the substrate. <10> An article comprising a substrate and a surface treatment layer disposed on the substrate and surface-treated with the surface treatment agent according to <8>. <11> The article according to <10>, which is an optical member. <12> The article according to <10>, which is a display or a touch panel.

[0333] The disclosure of Japanese Patent Application No. 2023-174756, filed on October 6, 2023, is incorporated herein by reference in its entirety. All documents, patent applications, and technical standards mentioned herein are incorporated herein by reference to the same extent as if each individual document, patent application, and technical standard was specifically and individually indicated to be incorporated by reference.

Claims

1. A composition comprising a first compound and a second compound, wherein the first compound and the second compound are each represented by formula (A), and T and Y in formula (A) are １ At least one of the above is different from the other. In formula (A), T is a monovalent group; R １ are each independently a monovalent hydrocarbon group; １ is a monovalent hydrocarbon group or a group represented by formula (1A), A is a (q+1)-valent linking group, Y ２ are each independently a group represented by formula (S1) or formula (S3), m is a number of 1 or more, and q is an integer of 1 or more. Ａ -(Si(R １Ａ ) ２ -O) ｍａ -* １Ａ ...(1A) In formula (1A), T Ａ is a monovalent group, R １Ａ are each independently a monovalent hydrocarbon group, ma is a number of 1 or more, １Ａ is the bonding site to the silicon atom in formula (A). Ｓ１ -Si(R ２ ) ｎ L ３－ｎ ...(S1) In formula (S1), R ２ each independently represents a hydrocarbon group; each L independently represents a hydrolyzable group, a group having a hydrolyzable group, or a hydroxyl group; n is an integer of 0 to 2; Ｓ１ is the bonding site to the linking group represented by A in formula (A). Ｓ３ -[Si(L ２ ) ２ -P] ｒ１ -Si(L ２ ) ３ ...(S3) In formula (S3), L ２ each independently represents a hydrolyzable group, a group having a hydrolyzable group, a hydroxyl group, or a hydrocarbon group; ２ At least four L ２ is a hydrolyzable group, a group having a hydrolyzable group, or a hydroxyl group, each P is independently an oxygen atom or an organic group having one carbon atom bonded to adjacent Si on both sides, r1 is an integer of 1 to 3, Ｓ３ is a bonding site to the linking group represented by A in formula (A).

2. The composition according to claim 1, wherein the first compound and the second compound are each represented by formula (1), and T in formula (1) of the first compound is different from T in formula (1) of the second compound. T-(Si(R １ ) ２ -O) ｍ -Si(R １ ) ２ -A-(Si(R ２ ) ｎ L ３－ｎ ) ｑ In formula (1), T is a monovalent group, and R １ are each independently a monovalent hydrocarbon group, A is a (q+1)-valent linking group, R ２ each independently represents a monovalent hydrocarbon group; each L independently represents a hydrolyzable group, a group having a hydrolyzable group, or a hydroxyl group; each m is a number of 1 or more; each n is independently an integer from 0 to 2; and each q is an integer of 1 or more.

3. The composition according to claim 1, wherein in the formula (A), T is a methyl group, a linear alkyl group having two or more carbon atoms, an alkyl group having three or more carbon atoms and having at least one of a branched structure and a cyclic structure, a group represented by formula (2A), or a group represented by formula (2B). １１ -(Si(R １２ ) ２ -O) ｍ１ ] ３ Si-O-* １ ... (2A) R １３ -O-* １ ...(2B) In formulas (2A) to (2B), R １１ each independently represents a monovalent hydrocarbon group or a group R １４ ３ Si-O-* ２ And the three R １１ Two or more of the following are R １４ ３ Si-O-* ２ and R １４ are each independently a monovalent hydrocarbon group or a trialkylsilyloxy group, ２ is the bonding site to the silicon atom in formula (2A), R １２ Each m1 is independently a monovalent hydrocarbon group, each m1 is independently a number of 0 or more, R １３ is a monovalent cyclic polysiloxane residue or a monovalent cage-shaped polysiloxane residue, １ is the bonding site to the silicon atom in formula (A).

4. The composition according to claim 3, wherein T in formula (A) of the second compound is a methyl group, a linear alkyl group having two or more carbon atoms, or an alkyl group having three or more carbon atoms and at least one of a branched structure and a cyclic structure.

5. The composition according to claim 4, wherein T in formula (A) in the first compound is a group represented by formula (2A) or a group represented by formula (2B).

6. The first compound and the second compound are each a compound represented by the formula (A) of the first compound, １ and Y in formula (A) in the second compound １ The composition of claim 1 , wherein 7. Y in formula (A) of the first compound １ is a group represented by formula (1A), and Y in formula (A) of the second compound is １ The composition of claim 6 , wherein: is a monovalent hydrocarbon group.

8. The composition according to claim 1, wherein q in formula (A) is an integer from 1 to 4.

9. The composition according to claim 1, wherein m in formula (A) is a number from 1 to 500.

10. The composition of claim 1, further comprising a liquid medium.

11. A surface treatment agent which is the composition according to any one of claims 1 to 10.

12. A method for manufacturing an article, comprising: performing a surface treatment on a substrate using the surface treatment agent according to claim 11; and manufacturing an article having a surface treatment layer formed on the substrate.

13. An article comprising a substrate, and a surface treatment layer disposed on the substrate and surface-treated with the surface treatment agent according to claim 11.

14. The article of claim 13 which is an optical component.

15. The article according to claim 13, which is a display or a touch panel.

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