Surface treatment agent

Abstract

The purpose of the present disclosure is to provide a surface treatment agent that can realize a surface treatment layer having good heat resistance. Provided is a surface treatment agent that contains: a fluoropolyether group-containing silane compound (A); a low molecular weight fluorine-containing compound or low molecular weight silane compound (B); and a fluorine-based solvent (C). The low molecular weight fluorine-containing compound or low molecular weight silane compound (B) includes one or more compounds selected from among a low molecular weight fluorine-containing compound having an ether bond or an aromatic group and a low molecular weight silane coupling agent. The fluorine-based solvent (C) includes a compound represented by formula: CR1R2=CR3R4 (C1) [In formula (C1), R1 denotes a C1-6 perfluoroalkyl group or a fluorine atom, R2 denotes a C1-6 perfluoroalkyl group, R3 denotes a C1-6 perfluoroalkyl group, and R4 denotes a C1-6 perfluoroalkyl group.]

Description

Surface treatment agents

[0001] The present disclosure relates to a surface treatment agent.

[0002] It is known that certain fluorine-containing compounds can provide excellent water repellency, oil repellency, antifouling properties, etc. when used in the surface treatment of substrates. Layers obtained from surface treatment compositions containing fluorine-containing compounds are applied as so-called functional thin films to a wide variety of substrates, such as glass, plastics, fibers, and building materials. Patent Document 1 describes a surface treatment agent containing a perfluoro(poly)ether group-containing silane compound.

[0003] International Publication No. 2014 / 069592 International Publication No. 2020 / 066533

[0004] An object of the present disclosure is to provide a surface treatment agent that can realize a surface treatment layer with good heat resistance.

[0005] The present disclosure includes the following aspects: [1] A composition comprising a fluoropolyether group-containing silane compound (A), a low-molecular-weight fluorine-containing compound or a low-molecular-weight silane compound (B), and a fluorine-based solvent (C), wherein the low-molecular-weight fluorine-containing compound or the low-molecular-weight silane compound (B) comprises one or more compounds selected from a low-molecular-weight fluorine-containing compound having an ether bond or an aromatic group, and a low-molecular-weight silane coupling agent, and the fluorine-based solvent (C) is a compound represented by the following formula: CR １ R ２ =CR ３ R ４ (C1) [In formula (C1), R １ is C １－６ represents a perfluoroalkyl group or a fluorine atom, R ２ is C １－６ represents a perfluoroalkyl group, R ３ is C １－６ represents a perfluoroalkyl group, R ４ is C １－６ [2] The fluoropolyether group-containing silane compound (A) is a compound represented by the following formula (1) or (2): [In the formula: R Ｆ１is independently at each occurrence Rf １ -R Ｆ -O ｑ - or a fluoroalkyl group; R Ｆ２ is -Rf ２ ｐ -R Ｆ -O ｑ - or a fluoroalkylene group; Rf １ each occurrence independently represents a C optionally substituted by one or more fluorine atoms; １－１６ Rf is an alkyl group; ２ is a C optionally substituted by one or more fluorine atoms; １－６ is an alkylene group; R Ｆ is, independently in each occurrence, a divalent fluoropolyether group; p is 0 or 1; q is, independently in each occurrence, 0 or 1; R Ｓｉ is independently in each occurrence a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom, or a monovalent organic group is bonded; Ｓｉ is a monovalent group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded; X Ａare each independently a single bond or a divalent to decavalent organic group; α is an integer of 1 to 9; β is an integer of 1 to 9; and γ is each independently an integer of 1 to 9.] [3] The surface treatment agent according to [1] or [2], wherein the content of the fluoropolyether group-containing silane compound (A) is 0.01 mass% or more and 5 mass% or less, based on the total amount of the surface treatment agent. [4] The surface treatment agent according to any one of [1] to [3], wherein the low-molecular-weight fluorine-containing compound or low-molecular-weight silane compound (B) comprises one or more compounds selected from the group consisting of a low-molecular-weight fluorine-containing compound having an ether bond (B-1), a low-molecular-weight fluorine-containing compound having an aromatic group (B-2), and a low-molecular-weight silane coupling agent (B-3). [5] The surface treatment agent according to [4], wherein the content of the low-molecular-weight fluorine-containing compound (B-1) is 2 parts by mass or more and 1,000 parts by mass or less per 1 part by mass of the fluoropolyether group-containing silane compound (A). [6] The surface treatment agent according to [4] or [5], wherein the content of the low-molecular-weight fluorine-containing compound (B-2) is 1 part by mass or more and 50 parts by mass or less per 100 parts by mass of the fluoropolyether group-containing silane compound (A). [7] The surface treatment agent according to any one of [4] to [6], wherein the content of the low-molecular-weight silane coupling agent (B-3) is 1 part by mass or more and 50 parts by mass or less per 100 parts by mass of the fluoropolyether group-containing silane compound (A). [8] The surface treatment agent according to any one of [1] to [7], wherein the boiling point of the fluorine-containing solvent (C) is 100°C or higher. [9] A laminate comprising a glass substrate and a surface treatment layer, wherein the surface treatment layer is formed from the surface treatment agent according to any one of [1] to [8].

[10] The laminate according to [9], wherein the thickness of the surface treatment layer is 5 nm or more and 50 nm or less.

[11] The laminate according to [9] or

[10] , wherein the content of alkaline earth metal contained in the glass substrate is 0.7 atomic % or more.

[12] A kitchen utensil comprising the laminate according to any one of [9] to

[11] .

[0006] The surface treatment agent of the present disclosure can realize a surface treatment layer with good heat resistance.

[0007] The surface treatment agent of the present disclosure comprises a fluoropolyether group-containing silane compound (A), a low-molecular-weight fluorine-containing compound or low-molecular-weight silane compound (B), and a fluorine-based solvent (C), wherein the low-molecular-weight fluorine-containing compound or low-molecular-weight silane compound (B) comprises one or more compounds selected from low-molecular-weight fluorine-containing compounds having an ether bond or an aromatic group, and low-molecular-weight silane coupling agents, and the fluorine-based solvent (C) is a compound represented by the following formula: CR １ R ２ =CR ３ R ４ (C1) [In formula (C1), R １ is C １－６ represents a perfluoroalkyl group or a fluorine atom, R ２ is C １－６ represents a perfluoroalkyl group, R ３ is C １－６ represents a perfluoroalkyl group, R ４ is C １－６ represents a perfluoroalkyl group.]

[0008] The surface treatment agent of the present disclosure can realize a surface treatment layer with good heat resistance, and preferably can form a surface treatment layer with good heat resistance even after long-term storage.

[0009] (Fluoropolyether Group-Containing Silane Compound (A)) The fluoropolyether group-containing silane compound (A) is a compound containing at least a fluoropolyether group and a silane, preferably a compound containing at least a fluoropolyether group and a hydrolyzable silyl group, and more preferably a compound represented by the following formula (1) or (2): [In the formula: R Ｆ１ is independently at each occurrence Rf １ -R Ｆ -O ｑ - and R Ｆ２ is -Rf ２ ｐ -R Ｆ -O ｑ -; Rf １each occurrence independently represents a C optionally substituted by one or more fluorine atoms; １－１６ Rf is an alkyl group; ２ is a C optionally substituted by one or more fluorine atoms; １－６ is an alkylene group; R Ｆ is, independently in each occurrence, a divalent fluoropolyether group; p is 0 or 1; q is, independently in each occurrence, 0 or 1; R Ｓｉ is independently in each occurrence a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom, or a monovalent organic group is bonded; Ｓｉ is a monovalent group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded; X Ａ are each independently a single bond or a divalent to decavalent organic group; α is an integer of 1 to 9; β is an integer of 1 to 9; and γ is each independently an integer of 1 to 9.

[0010] As used herein, the term "hydrolyzable group" refers to a group that can undergo a hydrolysis reaction, i.e., a group that can be eliminated from the main skeleton of a compound by a hydrolysis reaction. Examples of hydrolyzable groups include -OR ｊ , -OCOR ｊ , —O—N═CR ｊ ２ , -NR ｊ ２ , -NHR ｊ , —NCO, halogen (wherein R ｊ is a substituted or unsubstituted C １－4 alkyl group), and preferably -OR ｊ (i.e., an alkoxy group). ｊExamples of the hydroxyl group include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, and isobutyl; and substituted alkyl groups such as chloromethyl. Among these, alkyl groups, particularly unsubstituted alkyl groups, are preferred, with methyl or ethyl groups being more preferred. The hydroxyl group in the hydrolyzable silyl group is not particularly limited, and may be one generated by hydrolysis of a hydrolyzable group.

[0011] As used herein, the term "organic group" refers to a monovalent group containing carbon. Unless otherwise specified, the organic group may be a hydrocarbon group or a derivative thereof. A hydrocarbon group derivative refers to a group having one or more N, O, S, Si, amide, sulfonyl, siloxane, carbonyl, carbonyloxy, etc. at the end of the hydrocarbon group or in the molecular chain. Note that when simply referring to an "organic group," it refers to a monovalent organic group. Furthermore, a "divalent organic group" refers to a divalent group containing carbon. Such a divalent organic group is not particularly limited, but examples include divalent groups in which one hydrogen atom has been further eliminated from an organic group.

[0012] As used herein, the term "hydrocarbon group" refers to a group containing carbon and hydrogen, which is a hydrocarbon group from which one hydrogen atom has been removed. Such hydrocarbon groups include, but are not limited to, C １－２０ Examples of hydrocarbon groups include aliphatic hydrocarbon groups and aromatic hydrocarbon groups. The "aliphatic hydrocarbon group" may be linear, branched, or cyclic, and may be saturated or unsaturated. The hydrocarbon group may contain one or more ring structures. The hydrocarbon group may have one or more substituents.

[0013] As used herein, the substituent of the "hydrocarbon group" is not particularly limited, but examples thereof include a halogen atom, a C １－６ Alkyl group, C ２－６ Alkenyl group, C ２－６ Alkynyl group, C ３－１０ Cycloalkyl group, C ３－１０Unsaturated cycloalkyl groups, 5- to 10-membered heterocyclyl groups, 5- to 10-membered unsaturated heterocyclyl groups, C ６－１０ The alkyl group may include one or more groups selected from aryl groups and 5- to 10-membered heteroaryl groups.

[0014] As used herein, unless otherwise specified, the term "alkyl group" includes, for example, C １－１２ (Preferably C １－６ , more preferably C １－３ , more preferably C １ ) alkyl groups (e.g., methyl group, ethyl group, propyl group, isopropyl group). The "alkyl group" may be linear or branched, but is preferably linear. The "alkyl group" may also contain a functional group.

[0015] In the above formula (1), R Ｆ１ is independently at each occurrence Rf １ -R Ｆ -O ｑ - or a fluoroalkyl group. Ｆ１ is preferably Rf １ -R Ｆ -O ｑ -, and in another embodiment, R Ｆ１ is preferably a fluoroalkyl group. Ｆ１ is Rf １ -R Ｆ -O ｑ When the formula (1) is -, the compound represented by formula (1) contains a fluoropolyether group and corresponds to a fluoropolyether group-containing silane compound.

[0016] In the above formula (2), R Ｆ２ is -Rf ２ ｐ -R Ｆ -O ｑ - or a fluoroalkylene group. Ｆ２ is preferably Rf ２ ｐ -R Ｆ -O ｑ -, and in another embodiment, R Ｆ２is preferably a fluoroalkylene group. Ｆ２ is Rf ２ ｐ -R Ｆ -O ｑ When the formula (2) is -, the compound represented by formula (2) contains a fluoropolyether group and corresponds to a fluoropolyether group-containing silane compound.

[0017] In the above formula, Rf １ each occurrence independently represents a C optionally substituted by one or more fluorine atoms; １－１６ It is an alkyl group.

[0018] The C optionally substituted with one or more fluorine atoms １－１６ "C" in the alkyl group １－１６ The "alkyl group" may be a straight chain or a branched chain, and is preferably a straight chain or branched chain C １－６ Alkyl groups, especially C １－３ alkyl group, more preferably a straight-chain C １－６ Alkyl groups, especially C １－３ It is an alkyl group.

[0019] The above Rf １ is preferably a C substituted by one or more fluorine atoms １－１６ alkyl group, more preferably CF ２ H-C １－１５ A perfluoroalkylene group, more preferably C １－１６ It is a perfluoroalkyl group.

[0020] Above C １－１６ The perfluoroalkyl group may be a straight chain or a branched chain, and preferably is a straight chain or branched chain C １－６ Perfluoroalkyl groups, especially C １－３ perfluoroalkyl groups, more preferably linear C １－６ Perfluoroalkyl groups, especially C １－３ Perfluoroalkyl groups, specifically —CF ３ , -CF ２ CF ３ , or -CF ２ CF ２CF ３ is.

[0021] In the above formula, Rf ２ is a C optionally substituted by one or more fluorine atoms; １－６ It is an alkylene group.

[0022] The C optionally substituted with one or more fluorine atoms １－６ "C" in the alkylene group １－６ The "alkylene group" may be a straight chain or a branched chain, and is preferably a straight chain or branched chain C １－３ alkylene groups, more preferably linear C １－３ It is an alkylene group.

[0023] The above Rf ２ is preferably a C substituted by one or more fluorine atoms １－６ is an alkylene group, more preferably C １－６ A perfluoroalkylene group, more preferably C １－３ It is a perfluoroalkylene group.

[0024] Above C １－６ The perfluoroalkylene group may be a straight chain or a branched chain, and is preferably a straight chain or branched chain C １－３ A perfluoroalkylene group, more preferably a linear C １－３ Perfluoroalkylene groups, specifically —CF ２ -, -CF ２ CF ２ - or -CF ２ CF ２ CF ２ - is.

[0025] In the above formula, p is 0 or 1. In one embodiment, p is 0. In another embodiment, p is 1.

[0026] In the above formula, q is independently at each occurrence 0 or 1. In one embodiment, q is 0. In another embodiment, q is 1.

[0027] In the above formulas (1) and (2), R Ｆis independently at each occurrence a divalent fluoropolyether group.

[0028] R Ｆ is preferably the following: ｈ１ R Ｆａ ２ｈ１ ) ｈ３ - (OC ｈ２ R Ｆａ ２ｈ２－２ ) ｈ４ - [In the formula: R Ｆａ are each independently a hydrogen atom, a fluorine atom, or a chlorine atom in each occurrence, h1 is an integer of 1 to 6, h2 is an integer of 4 to 8, h3 is an integer of 0 or greater, and h4 is an integer of 0 or greater, provided that the combination of h3 and h4 is 1 or greater, preferably 2 or greater, and more preferably 5 or greater, and the order of occurrence of the repeating units enclosed in parentheses with h3 and h4 is arbitrary in the formula.

[0029] In one embodiment, R Ｆ R can be linear or branched. Ｆ is preferably represented by the formula: -(OC ６ F １２ ) ａ - (OC ５ F １０ ) ｂ - (OC ４ F ８ ) ｃ - (OC ３ R Ｆａ ６ ) ｄ - (OC ２ F ４ ) ｅ -(OCF ２ ) ｆ - [In the formula: R Ｆａ are each independently a hydrogen atom, a fluorine atom, or a chlorine atom in each occurrence, and a, b, c, d, e, and f are each independently an integer of 0 to 200, and the sum of a, b, c, d, e, and f is 1 or more. The order of occurrence of each repeating unit enclosed in parentheses with a, b, c, d, e, or f is arbitrary in the formula. However, all R Ｆａis a hydrogen atom or a chlorine atom, then at least one of a, b, c, e and f is 1 or greater.]

[0030] R Ｆａ is preferably a hydrogen atom or a fluorine atom, and more preferably a fluorine atom. Ｆａ is a hydrogen atom or a chlorine atom, at least one of a, b, c, e and f is 1 or more.

[0031] a, b, c, d, e and f may preferably each independently be an integer of 0 to 100.

[0032] The sum of a, b, c, d, e, and f is preferably 5 or more, more preferably 10 or more, and may be, for example, 15 or more or 20 or more. The sum of a, b, c, d, e, and f is preferably 200 or less, more preferably 100 or less, and even more preferably 60 or less, and may be, for example, 50 or less or 30 or less.

[0033] These repeating units may be linear or branched, and may contain a ring structure. For example, -(OC ６ F １２ )- is -(OCF ２ CF ２ CF ２ CF ２ CF ２ CF ２ )-,-(OCF(CF ３ )CF ２ CF ２ CF ２ CF ２ ) -, -(OCF ２ CF (CF ３ )CF ２ CF ２ CF ２ ) -, -(OCF ２ CF ２ CF (CF ３ )CF ２ CF ２ ) -, -(OCF ２ CF ２ CF ２ CF (CF ３ )CF ２ ) -, -(OCF２ CF ２ CF ２ CF ２ CF(CF ３ )) - etc. may be. -(OC ５ F １０ )) - is, -(OCF ２ CF ２ CF ２ CF ２ CF ２ )) -,(OCF(CF ３ ))CF ２ CF ２ CF ２ )) -,(OCF ２ CF(CF ３ ))CF ２ CF ２ )) -,(OCF ２ CF ２ CF(CF ３ ))CF ２ )) -,(OCF ２ CF ２ CF ２ CF(CF ３ )) - etc. may be. -(OC ４ F ８ )) - is, -(OCF ２ CF ２ CF ２ CF ２ )) -,(OCF(CF ３ ))CF ２ CF ２ )) -,(OCF ２ CF(CF ３ ))CF ２ )) -,(OCF ２ CF ２ CF(CF ３ )) -,(OC(CF ３ )) ２ CF ２ )) -,(OCF ２ C(CF ３ )) ２ )) -,(OCF(CF ３ ))CF(CF ３ )) -,(OCF(C ２ F ５ ))CF ２ )) - and -(OCF ２ CF(C ２ F５ ))-. ３ F ６ ) - (i.e., in the above formula, R Ｆａ is a fluorine atom) is -(OCF ２ CF ２ CF ２ )-,-(OCF(CF ３ )CF ２ )-and-(OCF ２ CF (CF ３ ))-. ２ F ４ )- is -(OCF ２ CF ２ )-and-(OCF(CF ３ ))-.

[0034] In one embodiment, the repeating unit is linear. By making the repeating unit linear, the surface smoothness, abrasion resistance, etc. of the surface treatment layer can be improved.

[0035] In one embodiment, the repeating unit is branched. By making the repeating unit branched, the dynamic friction coefficient of the surface treatment layer can be increased.

[0036] In one embodiment, R Ｆ may contain a ring structure.

[0037] The ring structure may be a three-, four-, five-, or six-membered ring as shown below.

[0038] [In the formula, * indicates the bonding position.]

[0039] The ring structure may be preferably a four-membered ring, a five-membered ring, or a six-membered ring, more preferably a four-membered ring or a six-membered ring.

[0040] The repeating unit having a ring structure may preferably be the following unit.

[0041] [In the formula, * indicates the bonding position.]

[0042] In one embodiment, the repeating unit is linear. By making the repeating unit linear, the surface smoothness, abrasion resistance, etc. of the surface treatment layer can be improved.

[0043] In one embodiment, the repeating unit is branched. By making the repeating unit branched, the dynamic friction coefficient of the surface treatment layer can be increased.

[0044] In one embodiment, R Ｆ is independently a group represented by any one of the following formulas (f1) to (f6) in each occurrence: —(OC ３ F ６ ) ｄ - (OC ２ F ４ ) ｅ - (f1) [wherein d is an integer of 1 to 200, and e is 0 or 1]; - (OC ４ F ８ ) ｃ - (OC ３ F ６ ) ｄ - (OC ２ F ４ ) ｅ -(OCF ２ ) ｆ - (f2) [wherein c and d each independently represent an integer of 0 or more and 30 or less, e and f each independently represent an integer of 1 or more and 200 or less, the sum of c, d, e and f is 2 or more, and the order of occurrence of each repeating unit enclosed in parentheses with the subscript c, d, e or f is arbitrary in the formula.]; - (R ６ -R ７ ) ｇ - (f3) [wherein, R ６ is OCF ２ or O.C. ２ F ４ and R ７ is O.C. ２ F ４ , O.C. ３ F ６ , O.C. ４ F ８ , O.C. ５ F １０ and O.C. ６ F１２ or a combination of two or three groups independently selected from these groups, and g is an integer of 2 to 100. ６ -R ７ ) ｇ -R ｒ - (R ７’ -R ６’ ) ｇ’ - (f4) [wherein, R ６ is OCF ２ or O.C. ２ F ４ and R ７ is O.C. ２ F ４ , O.C. ３ F ６ , O.C. ４ F ８ , O.C. ５ F １０ and O.C. ６ F １２ or a combination of two or three groups independently selected from these groups; ６’ is OCF ２ or O.C. ２ F ４ and R ７’ is O.C. ２ F ４ , O.C. ３ F ６ , O.C. ４ F ８ , O.C. ５ F １０ and O.C. ６ F １２ or a combination of two or three groups independently selected from these groups, g is an integer from 2 to 100, g' is an integer from 2 to 100, R ｒ teeth,

[0045] (wherein * indicates the bond position). ]; -(OC ６ F １２ ) ａ - (OC ５ F １０ ) ｂ - (OC ４F ８ ) ｃ - (OC ３ F ６ ) ｄ - (OC ２ F ４ ) ｅ -(OCF ２ ) ｆ - (f5) [In the formula, e is an integer of 1 or more and 200 or less, a, b, c, d, and f are each independently an integer of 0 or more and 200 or less, and the order of the repeating units enclosed in parentheses with a, b, c, d, e, or f is arbitrary in the formula.] - (OC ６ F １２ ) ａ - (OC ５ F １０ ) ｂ - (OC ４ F ８ ) ｃ - (OC ３ F ６ ) ｄ - (OC ２ F ４ ) ｅ -(OCF ２ ) ｆ - (f6) (In the formula, f is an integer of 1 or more and 200 or less, a, b, c, d, and e each independently are an integer of 0 or more and 200 or less, and the order of the repeating units enclosed in parentheses with a, b, c, d, e, or f is arbitrary in the formula.)

[0046] In the above formula (f1), d is preferably an integer of 5 to 200, more preferably 10 to 100, and even more preferably 15 to 50, for example, an integer of 25 to 35. ３ F ６ is preferably (OCF ２ CF ２ CF ２ ), (OCF (CF ３ )CF ２ ) or (OCF ２ CF (CF ３ )), more preferably (OCF ２ CF ２ CF ２ ) in the above formula (f1).２ F ４ ) is preferably (OCF ２ CF ２ ) or (OCF(CF ３ )), more preferably (OCF ２ CF ２ In one embodiment, e is 0. In another embodiment, e is 1.

[0047] In the formula (f2), e and f are each independently an integer of preferably 5 to 200, more preferably 10 to 200. The sum of c, d, e and f is preferably 5 or more, more preferably 10 or more, and may be, for example, 15 or more or 20 or more. In one aspect, the formula (f2) is preferably -(OCF ２ CF ２ CF ２ CF ２ ) ｃ -(OCF ２ CF ２ CF ２ ) ｄ -(OCF ２ CF ２ ) ｅ -(OCF ２ ) ｆ In another embodiment, formula (f2) is a group represented by -(OC ２ F ４ ) ｅ -(OCF ２ ) ｆ It may be a group represented by -.

[0048] In the above formula (f3), R ６ is preferably OC ２ F ４ In the above (f3), R ７ is preferably OC ２ F ４ , O.C. ３ F ６ and O.C. ４ F ８ or a combination of two or three groups independently selected from these groups, more preferably OC ３ F ６ and O.C.４ F ８ is a group selected from ２ F ４ , O.C. ３ F ６ and O.C. ４ F ８ The combination of two or three groups independently selected from the group consisting of, but not limited to, —OC ２ F ４ O.C. ３ F ６ -, -OC ２ F ４ O.C. ４ F ８ -, -OC ３ F ６ O.C. ２ F ４ -, -OC ３ F ６ O.C. ３ F ６ -, -OC ３ F ６ O.C. ４ F ８ -, -OC ４ F ８ O.C. ４ F ８ -, -OC ４ F ８ O.C. ３ F ６ -, -OC ４ F ８ O.C. ２ F ４ -, -OC ２ F ４ O.C. ２ F ４ O.C. ３ F ６ -, -OC ２ F ４ O.C. ２ F ４ O.C. ４ F ８ -, -OC ２ F ４ O.C. ３ F ６ O.C. ２ F ４ -, -OC ２ F ４ O.C. ３ F ６ O.C. ３F ６ -, -OC ２ F ４ O.C. ４ F ８ O.C. ２ F ４ -, -OC ３ F ６ O.C. ２ F ４ O.C. ２ F ４ -, -OC ３ F ６ O.C. ２ F ４ O.C. ３ F ６ -, -OC ３ F ６ O.C. ３ F ６ O.C. ２ F ４ -, and -OC ４ F ８ O.C. ２ F ４ O.C. ２ F ４ In the formula (f3), g is preferably an integer of 3 or more, more preferably an integer of 5 or more. The g is preferably an integer of 50 or less. In the formula (f3), OC ２ F ４ , O.C. ３ F ６ , O.C. ４ F ８ , O.C. ５ F １０ and O.C. ６ F １２ may be either a straight chain or a branched chain, and is preferably a straight chain. In this embodiment, the above formula (f3) is preferably -(OC ２ F ４ -OC ３ F ６ ) ｇ -or- (OC ２ F ４ -OC ４ F ８ ) ｇ - is.

[0049] In the above formula (f4), R ６ , R ７and g have the same meanings as those in formula (f3) above, and have the same embodiments. ６’ , R ７’ and g′ are R ６ , R ７ and g have the same meaning and similar aspects. ｒ is preferably

[0050] [wherein * indicates the bonding position], and more preferably

[0051] [wherein * indicates the bonding position.]

[0052] In the above formula (f5), e is preferably an integer of 1 or more and 100 or less, more preferably an integer of 5 or more and 100 or less. The sum of a, b, c, d, e, and f is preferably 5 or more, more preferably 10 or more, for example, 10 or more and 100 or less.

[0053] In the above formula (f6), f is preferably an integer of 1 or more and 100 or less, more preferably an integer of 5 or more and 100 or less. The sum of a, b, c, d, e, and f is preferably 5 or more, more preferably 10 or more, for example, 10 or more and 100 or less.

[0054] In one embodiment, the R Ｆ is a group represented by the above formula (f1).

[0055] In one embodiment, the R Ｆ is a group represented by the above formula (f2).

[0056] In one embodiment, the R Ｆ is a group represented by the above formula (f3).

[0057] In one embodiment, the R Ｆ is a group represented by the above formula (f4).

[0058] In one embodiment, the R Ｆ is a group represented by the above formula (f5).

[0059] In one embodiment, the R Ｆ is a group represented by the above formula (f6).

[0060] In one aspect, the fluoropolyether group-containing silane compound contained in the surface treatment layer preferably contains a structure represented by the above formula (f1), (f2), (f3), (f5) or (f6), more preferably contains a structure represented by the above formula (f1) or (f2), and even more preferably contains a structure represented by the above formula (f1), from the viewpoint of the slipperiness of the surface treatment layer.

[0061] In another aspect, the fluoropolyether group-containing silane compound that can be contained in the surface treatment layer preferably contains a structure represented by the above formula (f1), (f2), (f3), (f4), (f5) or (f6), more preferably contains a structure represented by the above formula (f1) or (f2), and even more preferably contains a structure represented by the above formula (f2).

[0062] The above R Ｆ In the formula, the ratio of e to f (hereinafter referred to as the "e / f ratio") is 0.1 to 10, preferably 0.2 to 5, more preferably 0.2 to 2, even more preferably 0.2 to 1.5, and even more preferably 0.2 to 0.85. By setting the e / f ratio to 10 or less, the slip properties, abrasion resistance, and chemical resistance of the surface treatment layer obtained from this compound are further improved. The smaller the e / f ratio, the more improved the slip properties and abrasion resistance of the surface treatment layer. On the other hand, by setting the e / f ratio to 0.1 or more, the stability of the compound can be further increased. The larger the e / f ratio, the more improved the stability of the compound.

[0063] R Ｆ１ The fluoroalkyl group represented by the formula (I) is a group in which a hydrogen atom contained in an alkyl group is replaced with a fluorine atom, and may be linear or branched. Ｆ１ The fluoroalkyl group represented by the formula (I) is preferably C １－５０ fluoroalkyl groups, more preferably C １－２０ fluoroalkyl groups, more preferably C １－１６ fluoroalkyl groups, such as C １－１０ Fluoroalkyl groups, and further C １－６ Fluoroalkyl groups, especially C １－３In one embodiment, R Ｆ１ is a perfluoroalkyl group in which all hydrogen atoms are substituted with fluorine atoms. In this embodiment, the perfluoroalkyl group is preferably a linear or branched C １－５０ Perfluoroalkyl groups, more preferably linear or branched C １－２０ Perfluoroalkyl groups, more preferably linear or branched C １－１６ perfluoroalkyl groups, for example, linear or branched C １－１０ Perfluoroalkyl groups, and also linear or branched C １－６ Perfluoroalkyl groups, especially linear or branched C １－３ It may be a perfluoroalkyl group.

[0064] R Ｆ２ The fluoroalkylene group represented by the formula (I) is a group in which a hydrogen atom contained in an alkylene group is replaced with a fluorine atom, and may be linear or branched. Ｆ２ The fluoroalkylene group represented by the formula (I) is preferably C １－５０ Fluoroalkylene groups, more preferably C １－２０ Fluoroalkylene group, more preferably C １－１６ Fluoroalkylene groups, such as C １－１０ Fluoroalkylene groups, further C １－６ Fluoroalkylene groups, especially C １－３ It may be a fluoroalkylene group. Ｆ２ is a perfluoroalkylene group in which all hydrogen atoms are substituted with fluorine atoms. In this embodiment, the perfluoroalkylene group is preferably a linear or branched C １－５０ perfluoroalkylene groups, more preferably linear or branched C １－２０ Perfluoroalkylene groups, more preferably linear or branched C １－１６ perfluoroalkylene groups, for example, linear or branched C １－１０Perfluoroalkylene groups, and also linear or branched C １－６ Perfluoroalkylene groups, especially linear or branched C １－３ It may also be a perfluoroalkylene group.

[0065] In the fluoropolyether group-containing silane compound, R Ｆ１ and R Ｆ２ The number average molecular weight of the portion is not particularly limited, but is, for example, 500 to 30,000, preferably 1,500 to 30,000, and more preferably 2,000 to 10,000. Ｆ１ and R Ｆ２ The number average molecular weight of １９ The value is measured by F-NMR.

[0066] In another embodiment, R Ｆ１ and R Ｆ２ The number average molecular weight of the moiety may be from 500 to 30,000, preferably from 1,000 to 20,000, more preferably from 2,000 to 15,000, even more preferably from 2,000 to 10,000, for example from 3,000 to 6,000.

[0067] In another embodiment, R Ｆ１ and R Ｆ２ The number average molecular weight of the moiety can be from 4,000 to 30,000, preferably from 5,000 to 10,000, and more preferably from 6,000 to 10,000.

[0068] In the above formulas (1) and (2), R Ｓｉ is independently in each occurrence a hydroxyl group, a hydrolyzable group, a hydrogen atom, or a monovalent group containing a silicon atom bonded to a monovalent organic group, and at least one R Ｓｉ is a monovalent group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded.

[0069] Here, the term "hydrolyzable group" refers to a group that can undergo a hydrolysis reaction, that is, a group that can be eliminated from the main skeleton of a compound by a hydrolysis reaction. Examples of the hydrolyzable group include -OR ｊ , -OCOR ｊ , —O—N═CR ｊ ２, -NR ｊ ２ , -NHR ｊ , —NCO, halogen (wherein R ｊ is a substituted or unsubstituted C １－４ (representing an alkyl group) and the like.

[0070] In a preferred embodiment, R Ｓｉ is a monovalent group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded.

[0071] In a preferred embodiment, R Ｓｉ is represented by the following formula (S1), (S2), (S3), or (S4): It is a group represented by the following formula:

[0072] In the above formula, R １１ is independently at each occurrence a hydroxyl group or a hydrolyzable group.

[0073] R １１ is preferably, independently at each occurrence, a hydrolyzable group.

[0074] R １１ is preferably, independently at each occurrence, -OR ｊ , -OCOR ｊ , —O—N═CR ｊ ２ , -NR ｊ ２ , -NHR ｊ , —NCO, or halogen (wherein R ｊ is a substituted or unsubstituted C １－４ alkyl group), and more preferably -OR ｊ (i.e., an alkoxy group). ｊ Examples of R include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, and isobutyl; and substituted alkyl groups such as chloromethyl. Among these, alkyl groups, particularly unsubstituted alkyl groups, are preferred, and methyl or ethyl groups are more preferred. In one embodiment, R ｊ is a methyl group, and in another embodiment, R ｊ is an ethyl group.

[0075] In the above formula, R１２ is independently a hydrogen atom or a monovalent organic group in each occurrence. Such monovalent organic groups are monovalent organic groups excluding the above-mentioned hydrolyzable groups.

[0076] R １２ In the formula (I), the monovalent organic group is preferably C １－２０ alkyl group, more preferably C １－６ It is preferably an alkyl group, more preferably a methyl group.

[0077] In the above formula, n1 is (SiR １１ ｎ１ R １２ ３－ｎ１ ) units are each independently an integer of 0 to 3, provided that R Ｓｉ is a group represented by formula (S1) or (S2), the terminal R Ｓｉ In the moiety (hereinafter also simply referred to as the "terminal moiety" of formula (1) and formula (2)), n1 is 1 to 3 (SiR １１ ｎ１ R １２ ３－ｎ１ In other words, in such a terminal portion, all n1s do not simultaneously become 0. In other words, in the terminal portion of formula (1) and formula (2), there is at least one Si atom to which a hydroxyl group or a hydrolyzable group is bonded.

[0078] n1 is (SiR １１ ｎ１ R １２ ３－ｎ１ ) units are each independently an integer of preferably 1 to 3, more preferably 2 to 3, and even more preferably 3.

[0079] In the above formula, X １１ is independently in each occurrence a single bond or a divalent organic group. Such a divalent organic group is preferably -R ２８ -O ｘ -R ２９ - (wherein, R ２８ and R ２９ is, in each occurrence, independently a single bond or C １－２０ is an alkylene group, and x is 0 or 1. １－２０The alkylene group may be a straight chain or a branched chain, but is preferably a straight chain. １－２０ The alkylene group is preferably C １－１０ Alkylene group, more preferably C １－６ Alkylene group, more preferably C １－３ It is an alkylene group.

[0080] In one embodiment, X １１ is independently at each occurrence -C １－６ Alkylene -O-C １－６ Alkylene- or -O-C １－６ It is alkylene-.

[0081] In a preferred embodiment, X １１ each occurrence independently represents a single bond or a straight-chain C １－６ an alkylene group, preferably a single bond or a straight-chain C １－３ Alkylene group, more preferably a single bond or a straight chain C １－２ It is preferably a linear C alkylene group. １－２ It is an alkylene group.

[0082] In the above formula, R １３ is independently in each occurrence a hydrogen atom or a monovalent organic group. Such a monovalent organic group is preferably C １－２０ It is an alkyl group. １－２０ The alkyl group may be straight-chain or branched, but is preferably straight-chain.

[0083] In a preferred embodiment, R １３ each occurrence independently represents a hydrogen atom or a straight-chain C １－６ is an alkyl group, preferably a hydrogen atom or a straight-chain C １－３ It is an alkyl group, preferably a hydrogen atom or a methyl group.

[0084] In the above formula, t is independently in each occurrence an integer of 2 or greater.

[0085] In a preferred embodiment, t is independently in each occurrence an integer from 2 to 10, preferably an integer from 2 to 6.

[0086] In the above formula, R １４ is independently in each occurrence a hydrogen atom, a halogen atom or -X １１ -SiR １１ ｎ１ R １２ ３－ｎ１ Such a halogen atom is preferably an iodine atom, a chlorine atom or a fluorine atom, more preferably a fluorine atom. In a preferred embodiment, R １４ is a hydrogen atom.

[0087] In the above formula, R １５ is independently in each occurrence a single bond, an oxygen atom, an alkylene group having 1 to 6 carbon atoms, or an alkyleneoxy group having 1 to 6 carbon atoms.

[0088] In one embodiment, R １５ is independently in each occurrence an oxygen atom, an alkylene group having 1 to 6 carbon atoms, or an alkyleneoxy group having 1 to 6 carbon atoms.

[0089] In a preferred embodiment, R １５ is a single bond.

[0090] In one embodiment, formula (S1) is the following formula (S1-a): [In the formula, R １１ , R １２ , R １３ , X １１ and n1 are as defined in formula (S1) above; t1 and t2, each occurring independently, are an integer of 1 or more, preferably an integer of 1 to 10, more preferably an integer of 2 to 10, for example, an integer of 1 to 5 or an integer of 2 to 5; the order of occurrence of the repeating units enclosed in parentheses with t1 and t2 is arbitrary in the formula.]

[0091] In a preferred embodiment, formula (S1) is the following formula (S1-b): [In the formula, R １１ , R １２ , R １３ , X １１ , n1 and t are defined as in formula (S1) above.

[0092] In the above formula, R ａ１is independently at each occurrence -Z １ -SiR ２１ ｐ１ R ２２ ｑ１ R ２３ ｒ１ is.

[0093] Above Z １ In each occurrence, each independently represents an oxygen atom or a divalent organic group. １ The structure written as ２１ ｐ１ R ２２ ｑ１ R ２３ ｒ１ )

[0094] In a preferred embodiment, Z １ is a divalent organic group.

[0095] In a preferred embodiment, Z １ Is Z １ Preferably, in formula (S3), (Si-Z) does not include a compound that forms a siloxane bond with the Si atom to which (Si-Z) is bonded. １ —Si) does not contain a siloxane bond.

[0096] Above Z １ is preferably C １－６ Alkylene group, -(CH ２ ) ｚ１ -O-(CH ２ ) ｚ２ - (wherein z1 is an integer of 0 to 6, for example, an integer of 1 to 6, and z2 is an integer of 0 to 6, for example, an integer of 1 to 6), or -(CH ２ ) ｚ３ -phenylene-(CH ２ ) ｚ４ - (wherein z3 is an integer of 0 to 6, for example, an integer of 1 to 6, and z4 is an integer of 0 to 6, for example, an integer of 1 to 6). １－６ The alkylene group may be straight-chain or branched, but is preferably straight-chain. These groups may contain, for example, fluorine atoms, C １－６ Alkyl group, C ２－６ Alkenyl groups, and C ２－６It may be substituted with one or more substituents selected from alkynyl groups, but is preferably unsubstituted.

[0097] In a preferred embodiment, Z １ is C １－６ Alkylene group or -(CH ２ ) ｚ３ -phenylene-(CH ２ ) ｚ４ -, preferably -phenylene-(CH ２ ) ｚ４ - is. Z １ is such a group, the light resistance, particularly the ultraviolet resistance, can be improved.

[0098] In another preferred embodiment, the Z １ is C １－３ In one embodiment, Z is an alkylene group. １ is -CH ２ CH ２ CH ２ In another embodiment, Z １ is -CH ２ CH ２ -It can be.

[0099] The above R ２１ is independently at each occurrence -Z １’ -SiR ２１’ ｐ１’ R ２２’ ｑ１’ R ２３’ ｒ１’ is.

[0100] Above Z １’ In each occurrence, each independently represents an oxygen atom or a divalent organic group. １’ The structure written as ２１’ ｐ１’ R ２２’ ｑ１’ R ２３’ ｒ１’ )

[0101] In a preferred embodiment, Z １’ is a divalent organic group.

[0102] In a preferred embodiment, Z １’Is Z １’ Preferably, in formula (S3), (Si-Z) does not include a compound that forms a siloxane bond with the Si atom to which (Si-Z) is bonded. １’ —Si) does not contain a siloxane bond.

[0103] Above Z １’ is preferably C １－６ Alkylene group, -(CH ２ ) ｚ１’ -O-(CH ２ ) ｚ２’ - (wherein z1' is an integer of 0 to 6, for example, an integer of 1 to 6, and z2' is an integer of 0 to 6, for example, an integer of 1 to 6), or -(CH ２ ) ｚ３’ -phenylene-(CH ２ ) ｚ４’ - (wherein z3' is an integer of 0 to 6, for example, an integer of 1 to 6, and z4' is an integer of 0 to 6, for example, an integer of 1 to 6). １－６ The alkylene group may be straight-chain or branched, but is preferably straight-chain. These groups may contain, for example, fluorine atoms, C １－６ Alkyl group, C ２－６ Alkenyl groups, and C ２－６ It may be substituted with one or more substituents selected from alkynyl groups, but is preferably unsubstituted.

[0104] In a preferred embodiment, Z １’ is C １－６ Alkylene group or -(CH ２ ) ｚ３’ -phenylene-(CH ２ ) ｚ４’ -, preferably -phenylene-(CH ２ ) ｚ４’ - is. Z １’ is such a group, the light resistance, particularly the ultraviolet resistance, can be improved.

[0105] In another preferred embodiment, the Z １’ is C １－３ In one embodiment, Z is an alkylene group. １’ is -CH ２ CH ２ CH ２In another embodiment, Z １’ is -CH ２ CH ２ -It can be.

[0106] The above R ２１’ is independently at each occurrence -Z １” -SiR ２２” ｑ１” R ２３” ｒ１” is.

[0107] Above Z １” In each occurrence, each independently represents an oxygen atom or a divalent organic group. １” The structure written as ２２” ｑ１” R ２３” ｒ１” )

[0108] In a preferred embodiment, Z １” is a divalent organic group.

[0109] In a preferred embodiment, Z １” Is Z １” Preferably, in formula (S3), (Si-Z) does not include a compound that forms a siloxane bond with the Si atom to which (Si-Z) is bonded. １” —Si) does not contain a siloxane bond.

[0110] Above Z １” is preferably C １－６ Alkylene group, -(CH ２ ) ｚ１” -O-(CH ２ ) ｚ２” - (wherein z1" is an integer of 0 to 6, for example, an integer of 1 to 6, and z2" is an integer of 0 to 6, for example, an integer of 1 to 6), or - (CH ２ ) ｚ３” -phenylene-(CH ２ ) ｚ４” - (wherein z3" is an integer of 0 to 6, for example, an integer of 1 to 6, and z4" is an integer of 0 to 6, for example, an integer of 1 to 6). １－６ The alkylene group may be straight-chain or branched, but is preferably straight-chain. These groups may contain, for example, fluorine atoms, C１－６ Alkyl group, C ２－６ Alkenyl groups, and C ２－６ It may be substituted with one or more substituents selected from alkynyl groups, but is preferably unsubstituted.

[0111] In a preferred embodiment, Z １” is C １－６ Alkylene group or -(CH ２ ) ｚ３” -phenylene-(CH ２ ) ｚ４” -, preferably -phenylene-(CH ２ ) ｚ４” - is. Z １” is such a group, the light resistance, particularly the ultraviolet resistance, can be improved.

[0112] In another preferred embodiment, the Z １” is C １－３ In one embodiment, Z is an alkylene group. １” is -CH ２ CH ２ CH ２ In another embodiment, Z １” is -CH ２ CH ２ -It can be.

[0113] The above R ２２” is independently at each occurrence a hydroxyl group or a hydrolyzable group.

[0114] The above R ２２” is preferably, independently at each occurrence, a hydrolyzable group.

[0115] The above R ２２” is preferably, independently at each occurrence, -OR ｊ , -OCOR ｊ , —O—N═CR ｊ ２ , -NR ｊ ２ , -NHR ｊ , —NCO, or halogen (wherein R ｊ is a substituted or unsubstituted C １－４ alkyl group), and more preferably -OR ｊ(i.e., an alkoxy group). ｊ Examples of R include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, and isobutyl; and substituted alkyl groups such as chloromethyl. Among these, alkyl groups, particularly unsubstituted alkyl groups, are preferred, and methyl or ethyl groups are more preferred. In one embodiment, R ｊ is a methyl group, and in another embodiment, R ｊ is an ethyl group.

[0116] The above R ２３” is independently a hydrogen atom or a monovalent organic group in each occurrence. Such monovalent organic groups are monovalent organic groups excluding the above-mentioned hydrolyzable groups.

[0117] The above R ２３” In the formula (I), the monovalent organic group is preferably C １－２０ alkyl group, more preferably C １－６ It is preferably an alkyl group, more preferably a methyl group.

[0118] The above q1" is independently an integer of 0 to 3 in each occurrence, and the above r1" is independently an integer of 0 to 3 in each occurrence. The sum of q1" and r1" is (SiR ２２” ｑ１” R ２３” ｒ１” ) units, it is 3.

[0119] The above q1″ is (SiR ２２” ｑ１” R ２３” ｒ１” ) units are each independently an integer of preferably 1 to 3, more preferably 2 to 3, and even more preferably 3.

[0120] The above R ２２’ is independently at each occurrence a hydroxyl group or a hydrolyzable group.

[0121] R ２２’ is preferably, independently at each occurrence, a hydrolyzable group.

[0122] R ２２’is preferably, independently at each occurrence, -OR ｊ , -OCOR ｊ , —O—N═CR ｊ ２ , -NR ｊ ２ , -NHR ｊ , —NCO, or halogen (wherein R ｊ is a substituted or unsubstituted C １－４ alkyl group), and more preferably -OR ｊ (i.e., an alkoxy group). ｊ Examples of R include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, and isobutyl; and substituted alkyl groups such as chloromethyl. Among these, alkyl groups, particularly unsubstituted alkyl groups, are preferred, and methyl or ethyl groups are more preferred. In one embodiment, R ｊ is a methyl group, and in another embodiment, R ｊ is an ethyl group.

[0123] The above R ２３’ is independently a hydrogen atom or a monovalent organic group in each occurrence. Such monovalent organic groups are monovalent organic groups excluding the above-mentioned hydrolyzable groups.

[0124] R ２３’ In the formula (I), the monovalent organic group is preferably C １－２０ alkyl group, more preferably C １－６ It is preferably an alkyl group, more preferably a methyl group.

[0125] The above p1' is independently an integer of 0 to 3 in each occurrence, q1' is independently an integer of 0 to 3 in each occurrence, and r1' is independently an integer of 0 to 3 in each occurrence. The sum of p', q1', and r1' is (SiR ２１’ ｐ１’ R ２２’ ｑ１’ R ２３’ ｒ１’ ) units, it is 3.

[0126] In one embodiment, p1′ is 0.

[0127] In one embodiment, p1′ is (SiR ２１’ ｐ１’ R ２２’ ｑ１’ R ２３’ ｒ１’ ) units may each independently be an integer from 1 to 3, an integer from 2 to 3, or 3. In a preferred embodiment, p1′ is 3.

[0128] In one embodiment, q1′ is (SiR ２１’ ｐ１’ R ２２’ ｑ１’ R ２３’ ｒ１’ ) units are each independently an integer of 1 to 3, preferably an integer of 2 or 3, and more preferably 3.

[0129] In one embodiment, p1′ is 0 and q1′ is (SiR ２１’ ｐ１’ R ２２’ ｑ１’ R ２３’ ｒ１’ ) units are each independently an integer of 1 to 3, preferably an integer of 2 to 3, and more preferably 3.

[0130] The above R ２２ is independently at each occurrence a hydroxyl group or a hydrolyzable group.

[0131] R ２２ is preferably, independently at each occurrence, a hydrolyzable group.

[0132] R ２２ is preferably, independently at each occurrence, -OR ｊ , -OCOR ｊ , —O—N═CR ｊ ２ , -NR ｊ ２ , -NHR ｊ , —NCO, or halogen (wherein R ｊ is a substituted or unsubstituted C １－４ alkyl group), and more preferably -OR ｊ (i.e., an alkoxy group). ｊExamples of R include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, and isobutyl; and substituted alkyl groups such as chloromethyl. Among these, alkyl groups, particularly unsubstituted alkyl groups, are preferred, and methyl or ethyl groups are more preferred. In one embodiment, R ｊ is a methyl group, and in another embodiment, R ｊ is an ethyl group.

[0133] The above R ２３ is independently a hydrogen atom or a monovalent organic group in each occurrence. Such monovalent organic groups are monovalent organic groups excluding the above-mentioned hydrolyzable groups.

[0134] R ２３ In the formula (I), the monovalent organic group is preferably C １－２０ alkyl group, more preferably C １－６ It is preferably an alkyl group, more preferably a methyl group.

[0135] The above p1 is independently an integer of 0 to 3 in each occurrence, q1 is independently an integer of 0 to 3 in each occurrence, and r1 is independently an integer of 0 to 3 in each occurrence. The sum of p1, q1, and r1 is (SiR ２１ ｐ１ R ２２ ｑ１ R ２３ ｒ１ ) units, it is 3.

[0136] In one embodiment, p1 is 0.

[0137] In one embodiment, p1 is (SiR ２１ ｐ１ R ２２ ｑ１ R ２３ ｒ１ ) units may each independently be an integer from 1 to 3, an integer from 2 to 3, or 3. In a preferred embodiment, p1 is 3.

[0138] In one embodiment, q1 is (SiR ２１ ｐ１ R ２２ ｑ１ R ２３ｒ１ ) units are each independently an integer of 1 to 3, preferably an integer of 2 or 3, and more preferably 3.

[0139] In one embodiment, p1 is 0 and q1 is (SiR ２１ ｐ１ R ２２ ｑ１ R ２３ ｒ１ ) units are each independently an integer of 1 to 3, preferably an integer of 2 to 3, and more preferably 3.

[0140] In the above formula, R ｂ１ is independently at each occurrence a hydroxyl group or a hydrolyzable group.

[0141] The above R ｂ１ is preferably, independently at each occurrence, a hydrolyzable group.

[0142] The above R ｂ１ is preferably, independently at each occurrence, -OR ｊ , -OCOR ｊ , —O—N═CR ｊ ２ , -NR ｊ ２ , -NHR ｊ , —NCO, or halogen (wherein R ｊ is a substituted or unsubstituted C １－４ alkyl group), and more preferably -OR ｊ (i.e., an alkoxy group). ｊ Examples of R include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, and isobutyl; and substituted alkyl groups such as chloromethyl. Among these, alkyl groups, particularly unsubstituted alkyl groups, are preferred, and methyl or ethyl groups are more preferred. In one embodiment, R ｊ is a methyl group, and in another embodiment, R ｊ is an ethyl group.

[0143] In the above formula, R ｃ１is independently a hydrogen atom or a monovalent organic group in each occurrence. Such monovalent organic groups are monovalent organic groups excluding the above-mentioned hydrolyzable groups.

[0144] The above R ｃ１ In the formula (I), the monovalent organic group is preferably C １－２０ alkyl group, more preferably C １－６ It is preferably an alkyl group, more preferably a methyl group.

[0145] The above k1 is independently an integer of 0 to 3 in each occurrence, l1 is independently an integer of 0 to 3 in each occurrence, and m1 is independently an integer of 0 to 3 in each occurrence. The sum of k1, l1, and m1 is (SiR ａ１ ｋ１ R ｂ１ ｌ１ R ｃ１ ｍ１ ) units, it is 3.

[0146] In one embodiment, k1 is (SiR ａ１ ｋ１ R ｂ１ ｌ１ R ｃ１ ｍ１ ) units are each independently an integer of 1 to 3, preferably 2 or 3, more preferably 3. In a preferred embodiment, k1 is 3.

[0147] In the above formulas (1) and (2), R Ｓｉ When is a group represented by formula (S3), preferably, at least two Si atoms having hydroxyl groups or hydrolyzable groups bonded thereto are present in the terminal portions of formula (1) and formula (2).

[0148] In a preferred embodiment, the group represented by formula (S3) is -Z １ -SiR ２２ ｑ１ R ２３ ｒ１ (wherein q1 is an integer of 1 to 3, preferably 2 or 3, more preferably 3, and r1 is an integer of 0 to 2), -Z １’ -SiR ２２’ ｑ１’ R ２３’ｒ１’ (wherein q1' is an integer of 1 to 3, preferably 2 or 3, more preferably 3, and r1' is an integer of 0 to 2), or -Z １” -SiR ２２” ｑ１” R ２３” ｒ１” (wherein q1″ is an integer of 1 to 3, preferably 2 or 3, more preferably 3, and r1″ is an integer of 0 to 2). Z １ , Z １’ , Z １” , R ２２ , R ２３ , R ２２’ , R ２３’ , R ２２” , and R ２３” has the same meaning as above.

[0149] In a preferred embodiment, in formula (S3), R ２１’ When present, at least one, preferably all, R ２１’ In the formula, q1″ is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0150] In a preferred embodiment, in formula (S3), R ２１ When present, at least one, preferably all, R ２１ In the formula (I), p1' is 0, and q1' is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0151] In a preferred embodiment, in formula (S3), R ａ１ When present, at least one, preferably all, R ａ１ In the formula (I), p1 is 0, and q1 is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0152] In a preferred embodiment, in formula (S3), k1 is 2 or 3, preferably 3; p1 is 0; and q1 is 2 or 3, preferably 3.

[0153] R ｄ１ is independently at each occurrence -Z ２ -CR ３１ｐ２ R ３２ ｑ２ R ３３ ｒ２ is.

[0154] Z ２ In each occurrence, Z is independently a single bond, an oxygen atom, or a divalent organic group. ２ The structure written as follows is (CR ３１ ｐ２ R ３２ ｑ２ R ３３ ｒ２ )

[0155] In a preferred embodiment, Z ２ is a divalent organic group.

[0156] Above Z ２ is preferably C １－６ Alkylene group, -(CH ２ ) ｚ５ -O-(CH ２ ) ｚ６ - (wherein z5 is an integer of 0 to 6, for example, an integer of 1 to 6, and z6 is an integer of 0 to 6, for example, an integer of 1 to 6), or - (CH ２ ) ｚ７ -phenylene-(CH ２ ) ｚ８ - (wherein z7 is an integer of 0 to 6, for example, an integer of 1 to 6, and z8 is an integer of 0 to 6, for example, an integer of 1 to 6). １－６ The alkylene group may be straight-chain or branched, but is preferably straight-chain. These groups may contain, for example, fluorine atoms, C １－６ Alkyl group, C ２－６ Alkenyl groups, and C ２－６ It may be substituted with one or more substituents selected from alkynyl groups, but is preferably unsubstituted.

[0157] In a preferred embodiment, Z ２ is C １－６ Alkylene group or -(CH ２ ) ｚ７ -phenylene-(CH ２ ) ｚ８ -, preferably -phenylene-(CH２ ) ｚ８ - is. Z ２ is such a group, the light resistance, particularly the ultraviolet resistance, can be improved.

[0158] In another preferred embodiment, the Z ２ is C １－３ In one embodiment, Z is an alkylene group. ２ is -CH ２ CH ２ CH ２ In another embodiment, Z ２ is -CH ２ CH ２ -It can be.

[0159] R ３１ is independently at each occurrence -Z ２’ -CR ３２’ ｑ２’ R ３３’ ｒ２’ is.

[0160] Z ２’ In each occurrence, Z is independently a single bond, an oxygen atom, or a divalent organic group. ２’ The structure written as follows is (CR ３２’ ｑ２’ R ３３’ ｒ２’ )

[0161] Above Z ２’ is preferably C １－６ Alkylene group, -(CH ２ ) ｚ５’ -O-(CH ２ ) ｚ６’ - (wherein z5' is an integer of 0 to 6, for example, an integer of 1 to 6, and z6' is an integer of 0 to 6, for example, an integer of 1 to 6), or - (CH ２ ) ｚ７’ -phenylene-(CH ２ ) ｚ８’ - (wherein z7' is an integer of 0 to 6, for example, an integer of 1 to 6, and z8' is an integer of 0 to 6, for example, an integer of 1 to 6). １－６The alkylene group may be straight-chain or branched, but is preferably straight-chain. These groups may contain, for example, fluorine atoms, C １－６ Alkyl group, C ２－６ Alkenyl groups, and C ２－６ It may be substituted with one or more substituents selected from alkynyl groups, but is preferably unsubstituted.

[0162] In a preferred embodiment, Z ２’ is C １－６ Alkylene group or -(CH ２ ) ｚ７’ -phenylene-(CH ２ ) ｚ８’ -, preferably -phenylene-(CH ２ ) ｚ８’ - is. Z ２’ is such a group, the light resistance, particularly the ultraviolet resistance, can be improved.

[0163] In another preferred embodiment, the Z ２’ is C １－３ In one embodiment, Z is an alkylene group. ２’ is -CH ２ CH ２ CH ２ In another embodiment, Z ２’ is -CH ２ CH ２ -It can be.

[0164] The above R ３２’ is independently at each occurrence -Z ３ -SiR ３４ ｎ２ R ３５ ３－ｎ２ is.

[0165] Above Z ３ In each occurrence, Z is independently a single bond, an oxygen atom, or a divalent organic group. ３ The structure written as ３４ ｎ２ R ３５ ３－ｎ２ )

[0166] In one embodiment, Z ３is an oxygen atom.

[0167] In one embodiment, Z ３ is a divalent organic group.

[0168] Above Z ３ is preferably C １－６ Alkylene group, -(CH ２ ) ｚ５” -O-(CH ２ ) ｚ６” - (wherein z5" is an integer of 0 to 6, for example, an integer of 1 to 6, and z6" is an integer of 0 to 6, for example, an integer of 1 to 6), or - (CH ２ ) ｚ７” -phenylene-(CH ２ ) ｚ８” - (wherein z7" is an integer of 0 to 6, for example, an integer of 1 to 6, and z8" is an integer of 0 to 6, for example, an integer of 1 to 6). １－６ The alkylene group may be straight-chain or branched, but is preferably straight-chain. These groups may contain, for example, fluorine atoms, C １－６ Alkyl group, C ２－６ Alkenyl groups, and C ２－６ It may be substituted with one or more substituents selected from alkynyl groups, but is preferably unsubstituted.

[0169] In a preferred embodiment, Z ３ is C １－６ Alkylene group or -(CH ２ ) ｚ７” -phenylene-(CH ２ ) ｚ８” -, preferably -phenylene-(CH ２ ) ｚ８” - is. Z ３ is such a group, the light resistance, particularly the ultraviolet resistance, can be improved.

[0170] In another preferred embodiment, the Z ３ is C １－３ In one embodiment, Z is an alkylene group. ３ is -CH ２ CH ２ CH ２ In another embodiment, Z ３is -CH ２ CH ２ -It can be.

[0171] The above R ３４ is independently at each occurrence a hydroxyl group or a hydrolyzable group.

[0172] R ３４ is preferably, independently at each occurrence, a hydrolyzable group.

[0173] R ３４ is preferably, independently at each occurrence, -OR ｊ , -OCOR ｊ , —O—N═CR ｊ ２ , -NR ｊ ２ , -NHR ｊ , —NCO, or halogen (wherein R ｊ is a substituted or unsubstituted C １－４ alkyl group), and more preferably -OR ｊ (i.e., an alkoxy group). ｊ Examples of R include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, and isobutyl; and substituted alkyl groups such as chloromethyl. Among these, alkyl groups, particularly unsubstituted alkyl groups, are preferred, and methyl or ethyl groups are more preferred. In one embodiment, R ｊ is a methyl group, and in another embodiment, R ｊ is an ethyl group.

[0174] The above R ３５ is independently a hydrogen atom or a monovalent organic group in each occurrence. Such monovalent organic groups are monovalent organic groups excluding the above-mentioned hydrolyzable groups.

[0175] The above R ３５ In the formula (I), the monovalent organic group is preferably C １－２０ alkyl group, more preferably C １－６ It is preferably an alkyl group, more preferably a methyl group.

[0176] In the above formula, n2 is (SiR ３４ ｎ２ R３５ ３－ｎ２ ) units are each independently an integer of 0 to 3, provided that R Ｓｉ is a group represented by formula (S4), n2 is 1 to 3 in the terminal portion of formula (1) and formula (2) (SiR ３４ ｎ２ R ３５ ３－ｎ２ ) unit is present. That is, in such a terminal portion, all n2s do not become 0 at the same time. In other words, in the terminal portion of formula (1) and formula (2), there is at least one Si atom to which a hydroxyl group or a hydrolyzable group is bonded.

[0177] n2 is (SiR ３４ ｎ２ R ３５ ３－ｎ２ ) units are each independently an integer of preferably 1 to 3, more preferably 2 to 3, and even more preferably 3.

[0178] The above R ３３’ is independently a hydrogen atom, a hydroxyl group, or a monovalent organic group in each occurrence. Such monovalent organic groups are monovalent organic groups excluding the above-mentioned hydrolyzable groups.

[0179] The above R ３３’ In the formula (I), the monovalent organic group is preferably C １－２０ Alkyl group or -(C ｓ H ２ｓ ) ｔ１ -(O-C ｓ H ２ｓ ) ｔ２ H (wherein s is an integer of 1 to 6, preferably an integer of 2 to 4; t1 is 1 or 0, preferably 0; t2 is an integer of 1 to 20, preferably an integer of 2 to 10, more preferably an integer of 2 to 6), and more preferably C １－２０ alkyl group, more preferably C １－６ An alkyl group, particularly preferably a methyl group.

[0180] In one embodiment, R ３３’ is a hydroxyl group.

[0181] In another embodiment, R ３３’ is a monovalent organic group, preferably C１－２０ alkyl group, more preferably C １－６ It is an alkyl group.

[0182] The above q2' is independently an integer of 0 to 3 in each occurrence, and the above r2' is independently an integer of 0 to 3 in each occurrence. The sum of q2' and r2' is (CR ３２’ ｑ２’ R ３３’ ｒ２’ ) units, it is 3.

[0183] q2' is (CR ３２’ ｑ２’ R ３３’ ｒ２’ ) units are each independently an integer of preferably 1 to 3, more preferably 2 to 3, and even more preferably 3.

[0184] R ３２ is independently at each occurrence -Z ３ -SiR ３４ ｎ２ R ３５ ３－ｎ２ This is -Z ３ -SiR ３４ ｎ２ R ３５ ３－ｎ２ is the above R ３２’ This has the same meaning as the description in

[0185] The above R ３３ is independently a hydrogen atom, a hydroxyl group, or a monovalent organic group in each occurrence. Such monovalent organic groups are monovalent organic groups excluding the above-mentioned hydrolyzable groups.

[0186] The above R ３３ In the formula (I), the monovalent organic group is preferably C １－２０ Alkyl group or -(C ｓ H ２ｓ ) ｔ１ -(O-C ｓ H ２ｓ ) ｔ２H (wherein, s is independently in each occurrence an integer of 1 to 6, preferably an integer of 2 to 4; t1 is 1 or 0, preferably 0; and t2 is an integer of 1 to 20, preferably an integer of 2 to 10, more preferably an integer of 2 to 6), more preferably C １－２０ alkyl group, more preferably C １－６ An alkyl group, particularly preferably a methyl group.

[0187] In one embodiment, R ３３ is a hydroxyl group.

[0188] In another embodiment, R ３３ is a monovalent organic group, preferably C １－２０ alkyl group, more preferably C １－６ It is an alkyl group.

[0189] The above p2 is independently an integer of 0 to 3 in each occurrence, q2 is independently an integer of 0 to 3 in each occurrence, and r2 is independently an integer of 0 to 3 in each occurrence. The sum of p2, q2, and r2 is (CR ３１ ｐ２ R ３２ ｑ２ R ３３ ｒ２ ) units, it is 3.

[0190] In one embodiment, p2 is 0.

[0191] In one embodiment, p2 is (CR ３１ ｐ２ R ３２ ｑ２ R ３３ ｒ２ ) units may each independently be an integer from 1 to 3, an integer from 2 to 3, or 3. In a preferred embodiment, p2 is 3.

[0192] In one embodiment, q2 is (CR ３１ ｐ２ R ３２ ｑ２ R ３３ ｒ２ ) units are each independently an integer of 1 to 3, preferably an integer of 2 or 3, and more preferably 3.

[0193] In one embodiment, p2 is 0 and q2 is (CR ３１ ｐ２ R ３２ ｑ２ R ３３ ｒ２ ) units are each independently an integer of 1 to 3, preferably an integer of 2 to 3, and more preferably 3.

[0194] The above R ｅ１ is independently at each occurrence -Z ３ -SiR ３４ ｎ２ R ３５ ３－ｎ２ This is -Z ３ -SiR ３４ ｎ２ R ３５ ３－ｎ２ is the above R ３２’ This has the same meaning as the description in

[0195] The above R ｆ１ is independently a hydrogen atom, a hydroxyl group, or a monovalent organic group in each occurrence. Such monovalent organic groups are monovalent organic groups excluding the above-mentioned hydrolyzable groups.

[0196] The above R ｆ１ In the formula (I), the monovalent organic group is preferably C １－２０ Alkyl group or -(C ｓ H ２ｓ ) ｔ１ -(O-C ｓ H ２ｓ ) ｔ２ H (wherein s is an integer of 1 to 6, preferably an integer of 2 to 4; t1 is 1 or 0, preferably 0; t2 is an integer of 1 to 20, preferably an integer of 2 to 10, more preferably an integer of 2 to 6), and more preferably C １－２０ alkyl group, more preferably C １－６ An alkyl group, particularly preferably a methyl group.

[0197] In one embodiment, R ｆ１ is a hydroxyl group.

[0198] In another embodiment, R ｆ１is a monovalent organic group, preferably C １－２０ alkyl group, more preferably C １－６ It is an alkyl group.

[0199] The above k2 is independently an integer of 0 to 3 in each occurrence, l2 is independently an integer of 0 to 3 in each occurrence, and m2 is independently an integer of 0 to 3 in each occurrence. The sum of k2, l2, and m2 is (CR ｄ１ ｋ２ R ｅ１ ｌ２ R ｆ１ ｍ２ ) units, it is 3.

[0200] In the above formulas (1) and (2), R Ｓｉ When is a group represented by formula (S4), preferably, at least two Si atoms having hydroxyl groups or hydrolyzable groups bonded thereto are present in the terminal portions of formula (1) and formula (2).

[0201] In one embodiment, R Ｓｉ is a group represented by formula (S4), n2 is 1 to 3, preferably 2 or 3, and more preferably 3 (SiR ３４ ｎ２ R ３５ ３－ｎ２ ) units are present in each terminal portion of formula (1) and formula (2) at two or more, for example, 2 to 27, preferably 2 to 9, more preferably 2 to 6, even more preferably 2 to 3, and particularly preferably 3.

[0202] In a preferred embodiment, in formula (S4), R ３２’ When present, at least one, preferably all, R ３２’ In the formula, n2 is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0203] In a preferred embodiment, in formula (S4), R ３２ When present, at least one, preferably all, R ３２ In the formula, n2 is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0204] In a preferred embodiment, in formula (S4), R ｅ１ When present, at least one, preferably all, R ａ１ In the formula, n2 is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0205] In a preferred embodiment, in formula (S4), k2 is 0, l2 is 2 or 3, preferably 3, and n2 is 2 or 3, preferably 3.

[0206] The above R ｇ１ and R ｈ１ is independently at each occurrence -Z ４ -SiR １１ ｎ１ R １２ ３－ｎ１ , -Z ４ -SiR ａ１ ｋ１ R ｂ１ ｌ１ R ｃ１ ｍ１ , -Z ４ -CR ｄ１ ｋ２ R ｅ１ ｌ２ R ｆ１ ｍ２ Here, R １１ , R １２ , R ａ１ , R ｂ２ , R ｃ１ , R ｄ１ , R ｅ１ , R ｆ１ , n1, k1, l1, m1, k2, l2, and m2 have the same meanings as above.

[0207] In a preferred embodiment, R ｇ１ and R ｈ１ are each independently -Z ４ -SiR １１ ｎ１ R １２ ３－ｎ１ is.

[0208] Above Z ４ In each occurrence, Z is independently a single bond, an oxygen atom, or a divalent organic group. ４ The structure written as１１ ｎ１ R １２ ３－ｎ１ )

[0209] In one embodiment, Z ４ is an oxygen atom.

[0210] In one embodiment, Z ４ is a divalent organic group.

[0211] Above Z ４ is preferably C １－６ Alkylene group, -(CH ２ ) ｚ５” -O-(CH ２ ) ｚ６” - (wherein z5" is an integer of 0 to 6, for example, an integer of 1 to 6, and z6" is an integer of 0 to 6, for example, an integer of 1 to 6), or - (CH ２ ) ｚ７” -phenylene-(CH ２ ) ｚ８” - (wherein z7" is an integer of 0 to 6, for example, an integer of 1 to 6, and z8" is an integer of 0 to 6, for example, an integer of 1 to 6). １－６ The alkylene group may be straight-chain or branched, but is preferably straight-chain. These groups may contain, for example, fluorine atoms, C １－６ Alkyl group, C ２－６ Alkenyl groups, and C ２－６ It may be substituted with one or more substituents selected from alkynyl groups, but is preferably unsubstituted.

[0212] In a preferred embodiment, Z ４ is C １－６ Alkylene group or -(CH ２ ) ｚ７” -phenylene-(CH ２ ) ｚ８” -, preferably -phenylene-(CH ２ ) ｚ８” - is. Z ３ is such a group, the light resistance, particularly the ultraviolet resistance, can be improved.

[0213] In another preferred embodiment, the Z ４ is C １－３In one embodiment, Z is an alkylene group. ４ is -CH ２ CH ２ CH ２ In another embodiment, Z ４ is -CH ２ CH ２ -It can be.

[0214] In one embodiment, R Ｓｉ is a group represented by formula (S2), (S3), (S4) or (S5): These compounds can form a surface treatment layer having high surface slip properties.

[0215] In one embodiment, R Ｓｉ is a group represented by formula (S3), (S4), or (S5). These compounds have multiple hydrolyzable groups at one end, and therefore can form a surface treatment layer that adheres strongly to the substrate and has high abrasion resistance.

[0216] In one embodiment, R Ｓｉ is a group represented by formula (S3) or (S4). These compounds can have multiple hydrolyzable groups branched from one Si atom or C atom at one end, and therefore can form a surface treatment layer with even higher abrasion resistance.

[0217] In one embodiment, R Ｓｉ is a group represented by formula (S1).

[0218] In one embodiment, R Ｓｉ is a group represented by formula (S2).

[0219] In one embodiment, R Ｓｉ is a group represented by formula (S3).

[0220] In one embodiment, R Ｓｉ is a group represented by formula (S4).

[0221] In one embodiment, R Ｓｉ is a group represented by formula (S5).

[0222] In the above formulas (1) and (2), X Ａis a fluoropolyether moiety (R ) that mainly provides water repellency and surface slipperiness. Ｆ１ and R Ｆ２ ) and the portion (R Ｓｉ ) and the linker. Ａ may be a single bond or any other group as long as the compounds represented by formulas (1) and (2) can exist stably.

[0223] In the above formula (1), α is an integer of 1 to 9, and β is an integer of 1 to 9. These α and β are X Ａ The sum of α and β can vary depending on the valence of X Ａ For example, X Ａ When X is a decavalent organic group, the sum of α and β is 10, and for example, α can be 9 and β can be 1, α can be 5 and β can be 5, or α can be 1 and β can be 9. Ａ When is a divalent organic group, α and β are 1.

[0224] In the above formula (2), γ is an integer of 1 to 9. γ is X Ａ That is, γ can vary depending on the valence of X Ａ is the value obtained by subtracting 1 from the valence of

[0225] X Ａ are each independently a single bond or a divalent to decavalent organic group;

[0226] Above X Ａ The divalent to decavalent organic group in the formula (I) is preferably a divalent to octavalent organic group. In one embodiment, the divalent to decavalent organic group is preferably a divalent to tetravalent organic group, more preferably a divalent organic group. In another embodiment, the divalent to decavalent organic group is preferably a trivalent to octavalent organic group, more preferably a trivalent to hexavalent organic group.

[0227] In one embodiment, X Ａ represents a single bond or a divalent organic group, α is 1, and β is 1.

[0228] In one embodiment, X Ａ represents a single bond or a divalent organic group, and γ is 1.

[0229] In one embodiment, X Ａ is a trivalent to hexavalent organic group, α is 1, and β is 2 to 5.

[0230] In one embodiment, X Ａ is a trivalent to hexavalent organic group, and γ is 2 to 5.

[0231] In one embodiment, X Ａ is a trivalent organic group, α is 1, and β is 2.

[0232] In one embodiment, X Ａ is a trivalent organic group, and γ is 2.

[0233] X Ａ is a single bond or a divalent organic group, the formulas (1) and (2) are represented by the following formulas (1') and (2').

[0234] In one embodiment, X Ａ is a single bond.

[0235] In another embodiment, X Ａ is a divalent organic group.

[0236] In one embodiment, X Ａ is, for example, a single bond or the following formula: -(R ５１ ) ｐ５ -(X ５１ ) ｑ５ - [In the formula: R ５１ is a single bond, -(CH ２ ) ｓ５ - or an o-, m- or p-phenylene group, preferably -(CH ２ ) ｓ５ -, s5 is an integer of 1 to 20, preferably an integer of 1 to 6, more preferably an integer of 1 to 3, and even more preferably 1 or 2; X ５１ is -(X ５２ ) ｌ５ represents -, and X ５２ each occurrence independently represents an —O—, —S—, o-, m-, or p-phenylene group, —C(O)O—, —Si(R ５３ ) ２ -, -(Si(R ５３ ) ２O) ｍ５ -Si(R ５３ ) ２ --, --CONR ５４ --, --O-CONR ５４ -, -NR ５４ - and - (CH ２ ) ｎ５ represents a group selected from the group consisting of -, ５３ is independently in each occurrence a phenyl group, C １－６ Alkyl group or C １－６ represents an alkoxy group, preferably a phenyl group or C １－６ R is an alkyl group, more preferably a methyl group; ５４ is independently in each occurrence a hydrogen atom, a phenyl group or C １－６ represents an alkyl group (preferably a methyl group), m5, in each occurrence, is independently an integer of 1 to 100, preferably an integer of 1 to 20, n5, in each occurrence, is independently an integer of 1 to 20, preferably an integer of 1 to 6, more preferably an integer of 1 to 3, l5, in each occurrence, is independently an integer of 1 to 10, preferably an integer of 1 to 5, more preferably an integer of 1 to 3, p5 is 0 or 1, q5 is 0 or 1, wherein at least one of p5 and q5 is 1, and the order of occurrence of the repeating units enclosed in parentheses with p5 or q5 is arbitrary. Ａ (Typically X Ａ hydrogen atom) is a fluorine atom, C １－３ Alkyl group and C １－３ In a preferred embodiment, X Ａ is not substituted with these groups.

[0237] In a preferred embodiment, the X Ａ are each independently -(R ５１ ) ｐ５ -(X ５１ ) ｑ５ -R ５２ - is. R ５２ is a single bond, -(CH ２ )ｔ５ - or an o-, m- or p-phenylene group, preferably -(CH ２ ) ｔ５ t5 is an integer of 1 to 20, preferably an integer of 2 to 6, more preferably an integer of 2 to 3. ５２ (Typically R ５２ hydrogen atom) is a fluorine atom, C １－３ Alkyl group and C １－３ In a preferred embodiment, R ５６ is not substituted with these groups.

[0238] Preferably, the X Ａ are each independently a single bond, C １－２０ an alkylene group, —R ５１ -X ５３ -R ５２ - or -X ５４ -R ５２ - [wherein, R ５１ and R ５２ has the same meaning as above, and X ５３ -O-, -S-, -C(O)O-, -CONR ５４ -, -O-CONR ５４ -, -Si(R ５３ ) ２ -, -(Si(R ５３ ) ２ O) ｍ５ -Si(R ５３ ) ２ -, -O-(CH ２ ) u５ -(Si(R ５３ ) ２ O) ｍ５ -Si(R ５３ ) ２ -, -O-(CH ２ ) u５ -Si(R ５３ ) ２ —O—Si(R ５３ ) ２ -CH ２ CH ２ -Si(R ５３ ) ２ —O—Si(R５３ ) ２ -, -O-(CH ２ ) u５ -Si(OCH ３ ) ２ OSi(OCH ３ ) ２ -, -CONR ５４ - (CH ２ ) u５ -(Si(R ５３ ) ２ O) ｍ５ -Si(R ５３ ) ２ -, -CONR ５４ - (CH ２ ) u５ -N(R ５４ ) -, or -CONR ５４ -(o-, m- or p-phenylene)-Si(R ５３ ) ２ - (wherein, R ５３ , R ５４ and m5 are as defined above, and u5 is an integer of 1 to 20, preferably an integer of 2 to 6, more preferably an integer of 2 to 3; ５４ is -S-, -C(O)O-, -CONR ５４ -, -O-CONR ５４ -, -CONR ５４ - (CH ２ ) u５ -(Si(R ５４ ) ２ O) ｍ５ -Si(R ５４ ) ２ -, -CONR ５４ - (CH ２ ) u５ -N(R ５４ ) -, or -CONR ５４ -(o-, m- or p-phenylene)-Si(R ５４ ) ２ - (wherein each symbol has the same meaning as above).

[0239] More preferably, the above X Ａ are each independently a single bond, C １－２０ an alkylene group, —(CH ２ )ｓ５ -X ５３ -, -(CH ２ ) ｓ５ -X ５３ - (CH ２ ) ｔ５ - -X ５４ - or -X ５４ - (CH ２ ) ｔ５ - [wherein, X ５３ , X ５４ , s5 and t5 have the same meanings as above.]

[0240] More preferably, the above X Ａ are each independently a single bond, C １－２０ an alkylene group, —(CH ２ ) ｓ５ -X ５３ - (CH ２ ) ｔ５ - or -X ５４ - (CH ２ ) ｔ５ wherein each symbol has the same meaning as defined above.

[0241] In a preferred embodiment, the X Ａ are each independently a single bond C １－２０ an alkylene group, —(CH ２ ) ｓ５ -X ５３ - or -(CH ２ ) ｓ５ -X ５３ - (CH ２ ) ｔ５ - [wherein, X ５３ is -O-, -CONR ５４ -, or -O-CONR ５４ - and R ５４ is independently in each occurrence a hydrogen atom, a phenyl group or C １－６ represents an alkyl group, s5 is an integer of 1 to 20, and t5 is an integer of 1 to 20.

[0242] In a preferred embodiment, the X Ａ are each independently -(CH ２ ) ｓ５ -O-(CH２ ) ｔ５ --CONR ５４ - (CH ２ ) ｔ５ - [wherein, R ５４ is independently in each occurrence a hydrogen atom, a phenyl group or C １－６ represents an alkyl group, s5 is an integer of 1 to 20, and t5 is an integer of 1 to 20.

[0243] In one embodiment, the X Ａ are each independently a single bond, C １－２０ an alkylene group, —(CH ２ ) ｓ５ -O-(CH ２ ) ｔ５ -, -(CH ２ ) ｓ５ -(Si(R ５３ ) ２ O) ｍ５ -Si(R ５３ ) ２ - (CH ２ ) ｔ５ -, -(CH ２ ) ｓ５ -O-(CH ２ ) u５ -(Si(R ５３ ) ２ O) ｍ５ -Si(R ５３ ) ２ - (CH ２ ) ｔ５ - or -(CH ２ ) ｓ５ -O-(CH ２ ) ｔ５ -Si(R ５３ ) ２ - (CH ２ ) u５ -Si(R ５３ ) ２ -(C v H ２v ) - [wherein, R ５３ , m5, s5, t5 and u5 are as defined above, and v5 is an integer of 1 to 20, preferably an integer of 2 to 6, more preferably an integer of 2 or 3.]

[0244] In the above formula, -(Cv H ２v )- may be a straight chain or a branched chain, for example, -CH ２ CH ２ -, -CH ２ CH ２ CH ２ -, -CH(CH ３ ) -, -CH(CH ３ ) CH ２ -It can be.

[0245] Above X Ａ are each independently a fluorine atom, C １－３ Alkyl group and C １－３ Fluoroalkyl groups (preferably C １－３ In one embodiment, X may be substituted with one or more substituents selected from the group consisting of alkyl, aryl, aryls ... Ａ is non-substituted.

[0246] In addition, the above X Ａ The left side of each equation is R Ｆ１ or R Ｆ２ and the right side is R Ｓｉ Combine with.

[0247] In one embodiment, X Ａ are each independently —O—C １－６ It may be other than an alkylene group.

[0248] In another embodiment, X Ａ Examples of the group include the following: [In the formula, R ４１ are each independently a hydrogen atom, a phenyl group, an alkyl group having 1 to 6 carbon atoms, or C １－６ an alkoxy group, preferably a methyl group; D is —CH ２ O (CH ２ ) ２ -, -CH ２ O (CH ２ ) ３ -, -CF ２ O (CH ２ ) ３ -, -(CH ２ ) ２ -, -(CH ２ )３ -, -(CH ２ )4-, -CONH-(CH ２ ) ３ -, -CON(CH ３ )-(CH ２ ) ３ -, -CON(Ph)-(CH ２ ) ３ - (wherein Ph means phenyl), and (In the formula, R ４２ are each independently a hydrogen atom, C １－６ or an alkyl group of C １－６ E represents an alkoxy group, preferably a methyl group or a methoxy group, more preferably a methyl group; ２ ) ｎ - (n is an integer of 2 to 6), and D is R of the molecular main chain. Ｆ１ or R Ｆ２ and E is R Ｓｉ binds to.]

[0249] Above X Ａ Specific examples of include: a single bond, —CH ２ OCH ２ -, -CH ２ O (CH ２ ) ２ -, -CH ２ O (CH ２ ) ３ -, -CH ２ O (CH ２ ) ４ -, -CH ２ O (CH ２ ) ５ -, -CH ２ O (CH ２ ) ６ -, -CH ２ O (CH ２ ) ３ Si(CH ３ ) ２ OSi(CH ３ ) ２ (CH ２ ) ２ -, -CH ２ O (CH ２ ) ３ Si(CH３ ) ２ HUNTER ３ ) ２ HUNTER ３ ) ２ (CH ２ ) ２ -、 -CH ２ O(CH ２ ) ３ H ３ ) ２ O(Si(CH ３ ) ２ O) ２ H ３ ) ２ (CH ２ ) ２ -、 -CH ２ O(CH ２ ) ３ H ３ ) ２ O(Si(CH ３ ) ２ O) ３ H ３ ) ２ (CH ２ ) ２ -、 -CH ２ O(CH ２ ) ３ H ３ ) ２ O(Si(CH ３ ) ２ O) １０ H ３ ) ２ (CH ２ ) ２ -、 -CH ２ O(CH ２ ) ３ H ３ ) ２ O(Si(CH ３ ) ２ O) ２０ H ３ ) ２ (CH ２ ) ２ -、 -CH ２ H ２ CHFOCF ２ -、 -CH ２ H ２ CHFOCF ２CF ２ -、 -CH ２ OCF ２ CHFOCF ２ CF ２ CF ２ -、 -CH ２ OCH ２ CF ２ CF ２ OCF ２ -、 -CH ２ OCH ２ CF ２ CF ２ OCF ２ CF ２ -、 -CH ２ OCH ２ CF ２ CF ２ OCF ２ CF ２ CF ２ -、 -CH ２ OCH ２ CF ２ CF ２ OCF(CF ３ )CF ２ OCF ２ -、 -CH ２ OCH ２ CF ２ CF ２ OCF(CF ３ )CF ２ OCF ２ CF ２ -、 -CH ２ OCH ２ CF ２ CF ２ OCF(CF ３ )CF ２ OCF ２ CF ２ CF ２ -、 -CH ２ OCH ２ CHFCF ２ OCF ２ -、 -CH ２ OCH ２ CHFCF ２ OCF ２ CF ２ -、 -CH ２ OCH ２ CHFCF ２ OCF ２CF ２ CF ２ -、 -CH ２ OCH ２ CHFCF ２ OCF(CF ３ )CF ２ OCF ２ -、 -CH ２ OCH ２ CHFCF ２ OCF(CF ３ )CF ２ OCF ２ CF ２ -、 -CH ２ OCH ２ CHFCF ２ OCF(CF ３ )CF ２ OCF ２ CF ２ CF ２ -、 -CH ２ OCF ２ CHFOCF ２ CF ２ CF ２ -C(O)NH-CH ２ -、 -CH ２ OCH ２ (CH) ２ ) ７ CH ２ Si(OCH ３ ) ２ OSi (OCH) ３ ) ２ (CH) ２ ) ２ Si(OCH ３ ) ２ OSi (OCH) ３ ) ２ (CH) ２ ) ２ -、 -CH ２ OCH ２ CH ２ CH ２ Si(OCH ３ ) ２ OSi (OCH) ３ ) ２ (CH) ２ ) ３ -、 -CH ２ OCH ２ CH ２ CH ２ Si(OCH２ CH ３ ) ２ HUNTER ２ CH ３ ) ２ (CH ２ ) ３ -、 -CH ２ SO ２ CH ２ CH ２ H. ３ ) ２ HUNTER ３ ) ２ (CH ２ ) ２ -、 -CH ２ SO ２ CH ２ CH ２ H. ２ CH ３ ) ２ HUNTER ２ CH ３ ) ２ (CH ２ ) ２ -、 -(CH ２ ) ２ -Si(CH ３ ) ２ -(CH ２ ) ２ -、 -CH ２ -、 -(CH ２ ) ２ -、 -(CH ２ ) ３ -、 -(CH ２ ) ４ -、 -(CH ２ ) ５ -、 -(CH ２ ) ６ -、 -CO-、 -CONH-、 -CONH-CH ２ -、 -CONH-(CH ２ ) ２ -、 -CONH-(CH ２ ) ３ -、 -CONH-(CH ２ ) ４ -、 -CONH-(CH ２ ) ５ -、 -CONH-(CH ２ ) ６-, -CON(CH ３ )-CH ２ -, -CON(CH ３ )-(CH ２ ) ２ -, -CON(CH ３ )-(CH ２ ) ３ -, -CON(CH ３ )-(CH ２ ) ４ -, -CON(CH ３ )-(CH ２ ) ５ -, -CON(CH ３ )-(CH ２ ) ６ -, -CON(Ph)-CH ２ -(wherein Ph means phenyl), -CON(Ph)-(CH ２ ) ２ -(wherein Ph means phenyl), -CON(Ph)-(CH ２ ) ３ -(wherein Ph means phenyl), -CON(Ph)-(CH ２ ) ４ -(wherein Ph means phenyl), -CON(Ph)-(CH ２ ) ５ -(wherein Ph means phenyl), -CON(Ph)-(CH ２ ) ６ - (wherein Ph means phenyl), -CONH-(CH ２ ) ２ NH (CH ２ ) ３ -, -CONH-(CH ２ ) ６ NH (CH ２ ) ３ -, -CH ２ O-CONH-(CH ２ ) ３ -, -CH ２ O-CONH-(CH ２ ) ６ -, -S-(CH ２ ) ３ -, -(CH ２ ) ２ S (CH ２ )３ -、 -CONH-(CH ２ ) ３ H ３ ) ２ HUNTER ３ ) ２ (CH ２ ) ２ -、 -CONH-(CH ２ ) ３ H ３ ) ２ HUNTER ３ ) ２ HUNTER ３ ) ２ (CH ２ ) ２ -、 -CONH-(CH ２ ) ３ H ３ ) ２ O(Si(CH ３ ) ２ O) ２ H ３ ) ２ (CH ２ ) ２ -、 -CONH-(CH ２ ) ３ H ３ ) ２ O(Si(CH ３ ) ２ O) ３ H ３ ) ２ (CH ２ ) ２ -、 -CONH-(CH ２ ) ３ H ３ ) ２ O(Si(CH ３ ) ２ O) １０ H ３ ) ２ (CH ２ ) ２ -、 -CONH-(CH ２ ) ３ H ３ ) ２ O(Si(CH ３ ) ２ O) ２０ H ３ )２ (CH ２ ) ２ -, -C(O)O-(CH ２ ) ３ -, -C(O)O-(CH ２ ) ６ -, -CH ２ -O-(CH ２ ) ３ -Si(CH ３ ) ２ - (CH ２ ) ２ -Si(CH ３ ) ２ - (CH ２ ) ２ -, -CH ２ -O-(CH ２ ) ３ -Si(CH ３ ) ２ - (CH ２ ) ２ -Si(CH ３ ) ２ -CH(CH ３ ) -, -CH ２ -O-(CH ２ ) ３ -Si(CH ３ ) ２ - (CH ２ ) ２ -Si(CH ３ ) ２ - (CH ２ ) ３ -, -CH ２ -O-(CH ２ ) ３ -Si(CH ３ ) ２ - (CH ２ ) ２ -Si(CH ３ ) ２ -CH(CH ３ )-CH ２ -, -OCH ２ -, -O(CH ２ ) ３ -, -OCFHCF ２ -, Examples include:

[0250] In yet another embodiment, X Ａare each independently represented by the formula: -(R １６ ) ｘ１ -(CFR １７ ) ｙ１ - (CH ２ ) ｚ１ In the formula, x1, y1, and z1 each independently represent an integer of 0 to 10, the sum of x1, y1, and z1 is 1 or more, and the order of the repeating units enclosed in parentheses in the formula is arbitrary.

[0251] In the above formula, R １６ each occurrence independently represents an oxygen atom, phenylene, carbazolylene, -NR １８ - (wherein, R １８ represents a hydrogen atom or an organic group) or a divalent organic group. １８ is an oxygen atom or a divalent polar group.

[0252] The "divalent polar group" is not particularly limited, but examples thereof include -C(O)-, -C(=NR １９ )-, and -C(O)NR １９ - (wherein R １９ represents a hydrogen atom or a lower alkyl group). The "lower alkyl group" is, for example, an alkyl group having 1 to 6 carbon atoms, such as methyl, ethyl, or n-propyl, which may be substituted with one or more fluorine atoms.

[0253] In the above formula, R １７ are each independently a hydrogen atom, a fluorine atom, or a lower fluoroalkyl group, preferably a fluorine atom. The "lower fluoroalkyl group" is, for example, a fluoroalkyl group having 1 to 6 carbon atoms, preferably 1 to 3 carbon atoms, a perfluoroalkyl group having 1 to 3 carbon atoms, more preferably a trifluoromethyl group or a pentafluoroethyl group, and even more preferably a trifluoromethyl group.

[0254] In yet another embodiment, X Ａ Examples of include the following groups: [In the formula, R ４１ are each independently a hydrogen atom, a phenyl group, an alkyl group having 1 to 6 carbon atoms, or C１－６ The alkoxy group is preferably a methyl group; Ａ In the group, any number of T's may be R Ｆ１ or R Ｆ２ The following groups are attached to: ２ O (CH ２ ) ２ -, -CH ２ O (CH ２ ) ３ -, -CF ２ O (CH ２ ) ３ -, -(CH ２ ) ２ -, -(CH ２ ) ３ -, -(CH ２ )4-, -CONH-(CH ２ ) ３ -, -CON(CH ３ )-(CH ２ ) ３ -, -CON(Ph)-(CH ２ ) ３ - (wherein Ph means phenyl), or [In the formula, R ４２ are each independently a hydrogen atom, C １－６ or an alkyl group of C １－６ represents an alkoxy group, preferably a methyl group or a methoxy group, more preferably a methyl group.], and some of the other Ts are R Ｓｉ and if present, the remaining Ts are each independently a methyl group, a phenyl group, C １－６ It is an alkoxy group, a radical scavenger group, or an ultraviolet absorbing group.

[0255] The radical scavenging group is not particularly limited as long as it can capture radicals generated by light irradiation, and examples thereof include residues of benzophenones, benzotriazoles, benzoic acid esters, phenyl salicylates, crotonic acids, malonic acid esters, organoacrylates, hindered amines, hindered phenols, and triazines.

[0256] The ultraviolet absorbing group is not particularly limited as long as it can absorb ultraviolet light, and examples thereof include residues of benzotriazoles, hydroxybenzophenones, esters of substituted and unsubstituted benzoic acid or salicylic acid compounds, acrylates or alkoxycinnamates, oxamides, oxanilides, benzoxazinones, and benzoxazoles.

[0257] In a preferred embodiment, preferred radical scavenging groups or ultraviolet absorbing groups include: Examples include:

[0258] In this embodiment, X Ａ may each independently be a trivalent to decavalent organic group.

[0259] In yet another embodiment, X Ａ Examples of include the following groups: [In the formula, R ２５ , R ２６ and R ２７ are each independently a divalent to hexavalent organic group, and R ２５ is at least one R Ｆ１ and bonded to R ２６ and R ２７ Each of the groups is at least one R Ｓｉ binds to.]

[0260] In one embodiment, the R ２５ is a single bond, C １－２０ Alkylene group, C ３－２０ Cycloalkylene group, C ５－２０ arylene group, —R ５７ -X ５８ -R ５９ -, -X ５８ -R ５９ - or -R ５７ -X ５８ -. ５７ and R ５９ are each independently a single bond, C １－２０ Alkylene group, C ３－２０ a cycloalkylene group, or C ５－２０ The X is an arylene group. ５８ is —O—, —S—, —CO—, —O—CO— or —COO—.

[0261] In one embodiment, the R ２６ and R ２７ are each independently a hydrocarbon or a group having at least one atom selected from N, O and S at the end or in the main chain of the hydrocarbon, and preferably C １－６ alkyl group, -R ３６ -R ３７ -R ３６ -, -R ３６ -CHR ３８ ２ -, etc. Here, R ３６ are each independently a single bond or an alkyl group having 1 to 6 carbon atoms, preferably an alkyl group having 1 to 6 carbon atoms. ３７ is N, O or S, preferably N or O. ３８ is -R ４５ -R ４６ -R ４５ -, -R ４６ -R ４５ -or-R ４５ -R ４６ -. Here, R ４５ are each independently an alkyl group having 1 to 6 carbon atoms. ４６ is N, O or S, preferably O.

[0262] In this embodiment, X Ａ may each independently be a trivalent to decavalent organic group.

[0263] In yet another embodiment, X Ａ For example, the following: [In the formula, X ａ is a single bond or a divalent organic group.

[0264] Above X ａ is a single bond or a divalent linking group directly bonded to the isocyanuric ring. ａis preferably a single bond, an alkylene group, or a divalent group containing at least one bond selected from the group consisting of an ether bond, an ester bond, an amide bond, and a sulfide bond, and more preferably a single bond, an alkylene group having 1 to 10 carbon atoms, or a divalent organic group having 1 to 10 carbon atoms and containing at least one bond selected from the group consisting of an ether bond, an ester bond, an amide bond, and a sulfide bond.

[0265] X ａ The following formula: -(CX １２１ X １２２ ) ｘ１ -(X ａ１ ) ｙ１ - (CX １２３ X １２４ ) ｚ１ - (wherein, X １２１ ~X １２４ are each independently H, F, OH, or —OSi(OR １２１ ) ３ (wherein three R １２１ are each independently an alkyl group having 1 to 4 carbon atoms, and ａ１ is -C(=O)NH-, -NHC(=O)-, -O-, -C(=O)O-, -OC(=O)-, -OC(=O)O-, or -NHC(=O)NH- (the left side of each bond is CX １２１ X １２２ ), x1 is an integer of 0 to 10, y1 is 0 or 1, and z1 is an integer of 1 to 10.

[0266] Above X ａ１ is preferably —O— or —C(═O)O—.

[0267] Above X ａ The following formula: -(CF ２ ) ｍ１１ - (CH ２ ) ｍ１２ -O-(CH ２ ) ｍ１３ - (wherein m11 is an integer of 1 to 3, m12 is an integer of 1 to 3, and m13 is an integer of 1 to 3), a group represented by -(CF ２ )ｍ１４ - (CH ２ ) ｍ１５ -O-CH ２ CH(OH)-(CH ２ ) ｍ１６ - (wherein m14 is an integer of 1 to 3, m15 is an integer of 1 to 3, and m16 is an integer of 1 to 3), a group represented by -(CF ２ ) ｍ１７ - (CH ２ ) ｍ１８ - (wherein m17 is an integer of 1 to 3, and m18 is an integer of 1 to 3), a group represented by -(CF ２ ) ｍ１９ - (CH ２ ) ｍ２０ -O-CH ２ CH(OSi(OCH ３ ) ３ )-(CH ２ ) ｍ２１ - (wherein m19 is an integer of 1 to 3, m20 is an integer of 1 to 3, and m21 is an integer of 1 to 3), or -(CH ２ ) ｍ２２ A group represented by the formula: - (wherein m22 is an integer of 1 to 3) is particularly preferred.

[0268] Above X ａ is not particularly limited, but specifically includes -CH ２ -, -C ２ H ４ -, -C ３ H ６ -, -C ４ H ８ -, -C ４ H ８ -O-CH ２ -, -CO-O-CH ２ -CH(OH)-CH ２ -, - (CF ２ ) ｎ５ -(n5 is an integer from 0 to 4), -(CF ２ ) ｎ５ - (CH ２ ) ｍ５ -(n5 and m5 each independently represents an integer of 0 to 4), -CF ２ CF ２ CH２ OCH ２ CH(OH)CH ２ -, -CF ２ CF ２ CH ２ OCH ２ CH(OSi(OCH ３ ) ３ ) CH ２ - etc.

[0269] In this embodiment, X Ａ may each independently be a divalent or trivalent organic group.

[0270] The fluoropolyether group-containing silane compound represented by the formula (1) or (2) is not particularly limited, but may be 5×10 ２ ~1 x 10 ５ Within this range, it is preferable from the viewpoint of abrasion resistance that the average molecular weight is 2,000 to 32,000, more preferably 2,500 to 12,000. Note that the "average molecular weight" refers to a number average molecular weight, and the "average molecular weight" is １９ The value is measured by F-NMR.

[0271] The content of the fluoropolyether group-containing silane compound represented by the above formula (1) or (2) is preferably 90% by mass or more and 100% by mass or less, more preferably 95% by mass or more and 100% by mass or less, based on a total of 100% by mass of the fluoropolyether group-containing silane compound (A).

[0272] The content of the fluoropolyether group-containing silane compound (A) is preferably 0.01% by mass or more and 5% by mass or less, more preferably 0.05% by mass or more and 0.2% by mass or less, even more preferably 0.07% by mass or more and 0.15% by mass or less, and particularly preferably 0.09% by mass or more and 0.12% by mass or less, based on 100% by mass of the surface treatment agent. By setting the content of the fluoropolyether group-containing silane compound within the above range, higher heat resistance can be obtained. In the composition of the present disclosure, the non-volatile content may be the portion obtained by excluding the solvent from the total amount of the composition.

[0273] (Low-molecular-weight fluorine-containing compound or low-molecular-weight silane compound (B)) The low-molecular-weight fluorine-containing compound or low-molecular-weight silane compound typically represents a low-molecular-weight compound containing a fluorine atom, or a low-molecular-weight compound containing a Si atom, and includes one or more selected from low-molecular-weight fluorine-containing compounds having an ether bond or an aromatic group, and low-molecular-weight silane coupling agents. The low-molecular-weight fluorine-containing compound having an ether bond or an aromatic group may be one or two or more types, and the low-molecular-weight silane coupling agent may be one or two or more types.

[0274] Although the present disclosure should not be interpreted as being limited to a particular theory, it is believed that the inclusion of the low-molecular-weight fluorine-containing compound having an ether bond or an aromatic group can suppress the aggregation of the fluoropolyether group-containing silane compound (A). As a result, it is believed that a surface treatment layer with good heat resistance can be formed even after long-term storage. In addition, since the low-molecular-weight silane coupling agent has a site that can react with water, it is believed that it can trap moisture in the surface treatment agent. As a result, it is believed that a surface treatment layer with good heat resistance can be formed even after long-term storage.

[0275] The low-molecular-weight fluorine-containing compound or low-molecular-weight silane compound (B) preferably contains one or more compounds selected from the group consisting of a low-molecular-weight fluorine-containing compound having an ether bond (B-1), a low-molecular-weight fluorine-containing compound having an aromatic group (B-2), and a low-molecular-weight silane coupling agent (B-3).

[0276] The low-molecular-weight fluorine-containing compound (B-1) having an ether bond may typically be a compound having one or more ether bonds and one or two or more fluorine atoms. The number of ether bonds contained in the low-molecular-weight fluorine-containing compound (B-1) having an ether bond may be preferably 1 or more and 2 or less, more preferably 1, per molecule.

[0277] The low-molecular-weight fluorine-containing compound (B-1) having an ether bond may preferably have 2 or more and 20 or less carbon atoms, more preferably 3 or more and 8 or less carbon atoms, and even more preferably 4 or more and 6 or less carbon atoms.

[0278] The low-molecular-weight fluorine-containing compound (B-1) having an ether bond is preferably a compound represented by the following formula: Ｂ１ -O-R Ｂ２ (B1) [In formula (B1): R Ｂ１ is C １－１０ represents a perfluoroalkyl group, R Ｂ２ is C １－１０ represents an alkyl group.]

[0279] The above R Ｂ１ is C １－１０ It is a perfluoroalkyl group, which may be a straight chain or a branched chain, and preferably a straight chain or branched chain C ２－７ perfluoroalkyl groups, more preferably straight-chain or branched-chain C ３－６ It is a perfluoroalkyl group.

[0280] The above R Ｂ２ is C １－１０ The alkyl group may be a straight chain or a branched chain, and preferably is a straight chain or branched chain C １－５ alkyl group, more preferably a straight or branched C １－３ It is an alkyl group.

[0281] The content of the compound represented by the formula (B1) may be preferably from 70% by mass to 100% by mass, more preferably from 80% by mass to 100% by mass, and even more preferably from 90% by mass to 100% by mass, based on the total amount of the low-molecular-weight fluorine-containing compound (B-1) having an ether bond.

[0282] Examples of the low molecular weight fluorine-containing compound (B-1) having an ether bond include methyl perfluoroisobutyl ether, methyl perfluorobutyl ether, ethyl perfluoroisobutyl ether, ethyl perfluorobutyl ether, perfluoroisobutyl methyl ether, and perfluoropentyl methyl ether.

[0283] The content of the low-molecular-weight fluorine-containing compound (B-1) having an ether bond may be preferably 2 parts by mass or more and 1,000 parts by mass or less, more preferably 4 parts by mass or more and 600 parts by mass or less, per part by mass of the fluoroether group-containing silane compound (A).

[0284] The low-molecular-weight fluorine-containing compound (B-2) having an aromatic group may typically be a compound containing one or more aromatic groups and a fluorine atom. Examples of the aromatic group include a benzene ring.

[0285] The low-molecular-weight fluorine-containing compound (B-2) having an aromatic group is preferably a compound represented by the following formula:

[0286] [In formula (B2): R Ｂ３ is independently in each occurrence a fluorine atom or C １－１０ represents a perfluoroalkyl group, and nb1 represents an integer of 1 to 6.

[0287] The above R Ｂ３ C in １－１０ The perfluoroalkyl group may be a straight chain or a branched chain, and preferably is a straight chain or branched chain C １－５ Perfluoroalkyl groups, more preferably straight or branched C １－３ In one embodiment, R Ｂ３ is preferably a fluorine atom. Ｂ３ is preferably a linear or branched C １－３ It is a perfluoroalkyl group.

[0288] nb1 is an integer of 1 to 6, preferably 3 to 6, and particularly preferably 6.

[0289] The content of the compound represented by the formula (B2) may be preferably from 70% by mass to 100% by mass, more preferably from 80% by mass to 100% by mass, and even more preferably from 90% by mass to 100% by mass, of the total amount of the low-molecular-weight fluorine-containing compound (B-2) having an aromatic group.

[0290] An example of the low-molecular-weight fluorine-containing compound (B-2) having an aromatic group is hexafluorobenzene.

[0291] In one embodiment, the content of the low-molecular-weight fluorine-containing compound (B-2) having an aromatic group is preferably 1 part by mass or more and 50 parts by mass or less, more preferably 5 parts by mass or more and 30 parts by mass or less, per 100 parts by mass of the fluoroether group-containing silane compound (A). In another embodiment, the content of the low-molecular-weight fluorine-containing compound (B-2) having an aromatic group is preferably 0 part by mass per 100 parts by mass of the fluoroether group-containing silane compound (A).

[0292] The low-molecular-weight silane coupling agent (B-3) is a compound containing a hydrolyzable group bonded to a Si atom, and in a preferred embodiment, further contains a hydrocarbon group bonded to a Si atom.

[0293] The low molecular weight silane coupling agent (B-3) is preferably a silane coupling agent represented by the following formula: SiR Ｂ４ ｎｂ２ R Ｂ５ （４－ｎｂ２） (B3) [wherein: R Ｂ４ represents a hydrolyzable group, R Ｂ５ represents a hydrocarbon group, and nb2 represents an integer of 1 to 4.

[0294] The above R Ｂ４ The hydrolyzable group in R means a group that can undergo a hydrolysis reaction, that is, a group that can be eliminated from the main skeleton of the compound by a hydrolysis reaction. Ｂ４ Examples of the hydrolyzable group in ｊ , -OCOR ｊ , —O—N═CR ｊ ２ , -NR ｊ ２ , -NHR ｊ , —NCO, halogen (wherein R ｊ is a substituted or unsubstituted C １－4 alkyl group), and preferably -OR ｊ (i.e., an alkoxy group). ｊExamples of R include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, and isobutyl; and substituted alkyl groups such as chloromethyl. Ｂ４ The hydrolyzable group in is preferably an alkyl group, particularly an unsubstituted alkyl group, more preferably a methyl group or an ethyl group.

[0295] The above R Ｂ５ The hydrocarbon group in R is a group containing carbon and hydrogen, and means a group in which one hydrogen atom has been removed from a hydrocarbon. Ｂ５ The hydrocarbon group in is not particularly limited, but may be any of C １－２０ Examples of the hydrocarbon group include an aliphatic hydrocarbon group. The "aliphatic hydrocarbon group" may be linear, branched, or cyclic, and may be saturated or unsaturated. Ｂ５ The hydrocarbon group in may contain one or more ring structures. Ｂ５ The hydrocarbon group in １－５ Alkyl group or straight or branched chain C ２－５ Alkenyl groups are preferred, and straight or branched C １－３ Alkyl group or straight or branched chain C ２－３ Alkenyl groups are more preferred.

[0296] The content of the compound represented by the formula (B3) may be preferably 70% by mass or more and 100% by mass or less, more preferably 80% by mass or more and 100% by mass or less, and even more preferably 90% by mass or more and 100% by mass or less, based on the total amount of the low-molecular-weight silane coupling agent (B-3).

[0297] Examples of the low molecular weight silane coupling agent (B-3) include vinyltrimethoxysilane, vinyltriethoxysilane, methyltrimethoxysilane, and methyltriethoxysilane.

[0298] In one embodiment, the content of the low-molecular-weight silane coupling agent (B-3) may be preferably 1 part by mass or more and 50 parts by mass or less, more preferably 5 parts by mass or more and 30 parts by mass or less, relative to 100 parts by mass of the fluoropolyether group-containing silane compound (A). In another embodiment, the content of the low-molecular-weight silane coupling agent (B-3) may be preferably 0 part by mass relative to 100 parts by mass of the fluoropolyether group-containing silane compound (A).

[0299] The molecular weight of the low-molecular-weight fluorine-containing compound or low-molecular-weight silane compound (B) may typically be preferably 450 or less, more preferably 120 or more and 400 or less, and even more preferably 140 or more and 300 or less.

[0300] The content of the low molecular weight fluorine-containing compound or low molecular weight silane compound (B) is preferably 1 part by mass or more and 100,000 parts by mass or less, more preferably 2 parts by mass or more and 80,000 parts by mass or less, and even more preferably 5 parts by mass or more and 60,000 parts by mass or less, relative to 100 parts by mass of the fluoropolyether group-containing silane compound (A). In one aspect, the content of the low molecular weight fluorine-containing compound or low molecular weight silane compound (B) is preferably 2 parts by mass or more and 1,000 parts by mass or less, more preferably 4 parts by mass or more and 600 parts by mass or less, relative to 1 part by mass of the fluoropolyether group-containing silane compound (A). In another aspect, the content of the low molecular weight non-fluorine-containing compound or low molecular weight silane compound (B) is preferably 1 part by mass or more and 50 parts by mass or less, more preferably 5 parts by mass or more and 30 parts by mass or less, relative to 100 parts by mass of the fluoropolyether group-containing silane compound (A).

[0301] (Fluorine-Based Solvent (C)) The fluorine-based solvent (C) is a fluorine-based solvent represented by the following formula: CR １ R ２ =CR ３ R ４ (C1) [In formula (C1), R １ is C １－６ represents a perfluoroalkyl group or a fluorine atom, R ２ is C １－６ represents a perfluoroalkyl group, R ３ is C １－６represents a perfluoroalkyl group, R ４ is C １－６ represents a perfluoroalkyl group.]

[0302] Although the present disclosure should not be construed as being limited to a particular theory, it is believed that the fluorine-containing solvent (C) does not contain hydrogen atoms or oxygen atoms and has low polarity, and therefore can reduce the amount of water absorbed into the surface treatment agent, and as a result, it is believed that a surface treatment layer having good heat resistance can be formed even after long-term storage.

[0303] The above R １ C in １－６ The perfluoroalkyl group may be linear or branched, and is preferably a linear or branched C １－５ perfluoroalkyl groups, more preferably straight or branched C １－３ In one embodiment, R １ is preferably a fluorine atom. １ is preferably C １－３ It is a perfluoroalkyl group.

[0304] The above R ２ C in １－６ The perfluoroalkyl group may be linear or branched, and is preferably a linear or branched C １－５ perfluoroalkyl groups, more preferably straight or branched C １－３ It is a perfluoroalkyl group.

[0305] The above R ３ C in １－６ The perfluoroalkyl group may be linear or branched, and is preferably a linear or branched C １－５ perfluoroalkyl groups, more preferably straight or branched C １－３ It is a perfluoroalkyl group.

[0306] The above R ４ C in １－６The perfluoroalkyl group may be linear or branched, and is preferably a linear or branched C １－５ perfluoroalkyl groups, more preferably straight or branched C １－３ It is a perfluoroalkyl group.

[0307] The total number of carbon atoms contained in the compound represented by the formula (C1) is preferably 5 or more and 20 or less, more preferably 6 or more and 15 or less, and even more preferably 7 or more and 12 or less.

[0308] The content of the compound represented by formula (C1) may be preferably 5% by mass or more and 100% by mass or less, more preferably 30% by mass or more and 80% by mass or less, and even more preferably 50% by mass or more and 70% by mass or less, based on the total amount of the fluorine-containing solvent (C).

[0309] The content of the compound represented by formula (C1) above may be preferably 50 to 99.7 mass%, more preferably 60 to 99.7 mass%, even more preferably 70 to 99.7 mass%, and particularly preferably 80 to 99.7 mass%, of the total amount of the surface treatment agent.

[0310] The fluorine-based solvent includes hexafluoropropene trimer, which may be a mixture of isomers represented by the following formulae (T-1), (T-2), and (T-3):

[0311] The content of the isomer represented by formula (T-1) above may be preferably 0% by mass or more and 70% by mass or less, more preferably 1% by mass or more and 60% by mass or less, based on 100% by mass of the total hexafluoropropene trimer. The content of the isomer represented by formula (T-2) above may be preferably 5% by mass or more and 55% by mass or less, more preferably 10% by mass or more and 45% by mass or less, based on 100% by mass of the total hexafluoropropene trimer. The content of the isomer represented by formula (T-3) above may be preferably 20% by mass or more and 80% by mass or less, more preferably 30% by mass or more and 70% by mass or less, based on 100% by mass of the total hexafluoropropene trimer.

[0312] The boiling point of the fluorine-based solvent may be preferably 60° C. or higher, more preferably 70° C. or higher and 140° C. or lower, and even more preferably 80° C. or higher and 120° C. or lower, at 1 atmosphere (1,013 hPa).

[0313] The fluorine-containing solvent (C) may further contain other solvents. By containing other solvents, the handleability of the composition becomes good. When a layer is formed using such a composition, the formed layer can be a continuous thin film. Furthermore, such a composition can contribute to the formation of a thin film of any thickness.

[0314] The other solvents are not particularly limited, but examples thereof include perfluoroaliphatic hydrocarbons having 5 to 12 carbon atoms (e.g., perfluorohexane, perfluoromethylcyclohexane, and perfluoro-1,3-dimethylcyclohexane); polyfluoroaromatic hydrocarbons (e.g., bis(trifluoromethyl)benzene); polyfluoroaliphatic hydrocarbons (e.g., C ６ F １３ CH ２ CH ３ (e.g., Asahiklin (registered trademark) AC-6000 manufactured by Asahi Glass Co., Ltd.), 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 (trademark) 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) (the perfluoroalkyl group and the alkyl group may be linear or branched), or CF ３ CH ２ OCF ２ CHF ２ (For example, Asahiklin (registered trademark) AE-3000 manufactured by Asahi Glass Co., Ltd.)). These solvents can be used alone or as a mixture of two or more. Among them, hydrofluoroethers are preferred, and perfluorobutyl methyl ether (C ４ F ９ OCH ３ ) and / or perfluorobutyl ethyl ether (C ４ F ９ O.C. ２ H ５ ) is particularly preferred.

[0315] The boiling point (atmospheric pressure) of the solvent may be preferably less than 105°C, more preferably 90°C or less, and even more preferably 80°C or less. When the solvent has a boiling point within the above range, the surface treatment agent of the present disclosure, when applied to a substrate, evaporates relatively easily without the need for heating or the like, thereby reducing the time and energy required for the surface treatment process. The lower limit of the boiling point is not particularly limited, but may be, for example, 30°C or higher, preferably 50°C or higher.

[0316] The content of the other solvents may be preferably from 0 to 90% by mass, more preferably from 0 to 70% by mass, and even more preferably from 0 to 50% by mass, based on 100% by mass of the total of the fluorinated solvent (C).

[0317] The content of the fluorine-based solvent (C) in the surface treatment agent may be preferably 50 to 99.7 mass%, more preferably 60 to 99.7 mass%, even more preferably 70 to 99.7 mass%, and particularly preferably 80 to 99.7 mass%.

[0318] The surface treatment agent of the present disclosure may further contain a (non-reactive) fluoropolyether compound that can be understood as a fluorine-containing oil, preferably a perfluoro(poly)ether compound (hereinafter collectively referred to as "fluorine-containing oil"), a (non-reactive) silicone compound that can be understood as a silicone oil (hereinafter referred to as "silicone oil"), alcohols, catalysts, surfactants, polymerization inhibitors, sensitizers, etc. The other components are components different from the above-mentioned fluoropolyether group-containing silane compound (A), low-molecular-weight fluorine-containing compound or low-molecular-weight silane coupling agent (B), and fluorine-based solvent (C).

[0319] The fluorine-containing oil is not particularly limited, but examples thereof include compounds represented by the following general formula (4) (perfluoro(poly)ether compounds): ５ - (OC ４ F ８ ) ａ” - (OC ３ F ６ ) ｂ” - (OC ２ F ４ ) ｃ” -(OCF ２ ) ｄ” -Rf ６ ...(4) In the formula, Rf ５ is a C optionally substituted by one or more fluorine atoms; １－１６ Alkyl groups (preferably C １－１６ Rf represents a perfluoroalkyl group ６ is a C optionally substituted by one or more fluorine atoms; １－１６ Alkyl groups (preferably C １－１６ Rf represents a perfluoroalkyl group, a fluorine atom, or a hydrogen atom; ５ and Rf ６ More preferably, each independently represents C １－３It is a perfluoroalkyl group. a", b", c", and d" respectively represent the number of four types of repeating units of perfluoro(poly)ether constituting the main skeleton of the polymer, and are each independently an integer of 0 to 300, and the sum of a", b", c", and d" is greater than 30, preferably 40 to 300, and more preferably 50 to 300. The order of occurrence of each repeating unit enclosed in parentheses with the subscript a", b", c", or d" is arbitrary in the formula. Of these repeating units, -(OC ４ F ８ )- is -(OCF ２ CF ２ CF ２ CF ２ )-,-(OCF(CF ３ )CF ２ CF ２ ) -, -(OCF ２ CF (CF ３ )CF ２ ) -, -(OCF ２ CF ２ CF (CF ３ )) -, -(OC(CF ３ ) ２ CF ２ ) -, -(OCF ２ C (CF ３ ) ２ )-,-(OCF(CF ３ )CF(CF ３ ))-,-(OCF(C ２ F ５ )CF ２ )- and (OCF ２ CF (C ２ F ５ ))-, but preferably -(OCF ２ CF ２ CF ２ CF ２ )-. -(OC ３ F ６ )- is -(OCF ２ CF ２ CF ２ )-,-(OCF(CF ３ )CF ２ )- and (OCF ２ CF (CF ３))-, and preferably -(OCF ２ CF ２ CF ２ )-. -(OC ２ F ４ )- is -(OCF ２ CF ２ )- and (OCF(CF ３ ))-, but preferably -(OCF ２ CF ２ )-.

[0320] Examples of the perfluoro(poly)ether compound represented by the general formula (4) include compounds represented by the following general formulas (4a) and (4b) (which may be one type or a mixture of two or more types): ５ -(OCF ２ CF ２ CF ２ ) ｂ” -Rf ６ ...(4a) Rf ５ -(OCF ２ CF ２ CF ２ CF ２ ) ａ” -(OCF ２ CF ２ CF ２ ) ｂ” -(OCF ２ CF ２ ) ｃ” -(OCF ２ ) ｄ” -Rf ６ ...(4b) In these formulas, Rf ５ and Rf ６ is as defined above; in formula (4a), b" is an integer of 1 or more and 100 or less; in formula (4b), a" and b" are each independently an integer of 0 or more and 30 or less, and c" and d" are each independently an integer of 1 or more and 300 or less. The order of occurrence of each repeating unit enclosed in parentheses with the subscripts a", b", c", and d" is arbitrary in the formula.

[0321] From another viewpoint, the fluorine-containing oil may be a compound represented by the general formula Rf ３ -F (wherein, Rf３ is C ５－１６ The compound may be a compound represented by the formula (I) below, which is a perfluoroalkyl group. Also, it may be a chlorotrifluoroethylene oligomer.

[0322] The above-mentioned fluorinated oil may have a number average molecular weight of preferably 1000 or more, more preferably 1500 or more, and even more preferably 2000 or more. The above-mentioned fluorinated oil may also have a number average molecular weight of preferably 30000 or less, more preferably 20000 or less, and even more preferably 10000 or less. The molecular weight of the fluorinated oil can be measured using GPC.

[0323] The fluorinated oil may be contained in an amount of, for example, 0 to 50% by mass, preferably 0 to 30% by mass, and more preferably 0 to 5% by mass, relative to the surface treatment agent. In one embodiment, the surface treatment agent of the present disclosure is substantially free of fluorinated oil. "Substantially free of fluorinated oil" means that the surface treatment agent does not contain any fluorinated oil, or may contain a very small amount of fluorinated oil.

[0324] In one embodiment, the number-average molecular weight of the fluorinated oil may be smaller than the number-average molecular weight of the fluoropolyether group-containing silane compound (A). By setting the number-average molecular weight in this range, it is possible to form a cured product having high abrasion resistance and high surface slippage while suppressing a decrease in the transparency of the surface treatment layer obtained from such a compound.

[0325] The fluorine-containing oil contributes to improving the surface slip properties of the layer formed by the surface treatment agent of the present disclosure.

[0326] The silicone oil may be, for example, a linear or cyclic silicone oil having 2,000 or less siloxane bonds. The linear silicone oil may be a so-called straight silicone oil or a modified silicone oil. Examples of straight silicone oils include dimethyl silicone oil, methylphenyl silicone oil, and methylhydrogen silicone oil. Examples of modified silicone oils include straight silicone oils modified with alkyl, aralkyl, polyether, higher fatty acid ester, fluoroalkyl, amino, epoxy, carboxyl, alcohol, or the like. Examples of cyclic silicone oils include cyclic dimethylsiloxane oil.

[0327] In the surface treatment agent of the present disclosure, the silicone oil may be contained in an amount of, for example, 0 to 300 parts by mass, preferably 50 to 200 parts by mass, relative to a total of 100 parts by mass of the fluoropolyether group-containing silane compound (A) (when two or more types are used, the total of these, the same applies hereinafter).

[0328] The silicone oil contributes to improving the surface slipperiness of the surface treatment layer.

[0329] Examples of the alcohols include alcohols having 1 to 6 carbon atoms which may be substituted with one or more fluorine atoms, such as methanol, ethanol, isopropanol, tert-butanol, and CF ３ CH ２ OH, CF ３ CF ２ CH ２ OH, (CF ３ ) ２ Addition of these alcohols to the surface treatment agent improves the stability of the surface treatment agent and also improves the compatibility of the fluoropolyether group-containing silane compound (A) with the solvent.

[0330] The alcohol is contained in the surface treatment agent in an amount, in terms of molar ratio, of preferably 0.1 to 5 times, more preferably 0.5 to 3 times, and even more preferably 0.8 to 1.2 times, the amount of the metal compound. By setting the content ratio of the alcohol within the above range, the stability of the surface treatment layer can be further improved.

[0331] Examples of the catalyst include acids (for example, acetic acid, trifluoroacetic acid, etc.), bases (for example, ammonia, triethylamine, diethylamine, etc.), and transition metals (for example, Ti, Ni, Sn, etc.).

[0332] The catalyst promotes the hydrolysis and dehydration condensation of the fluoropolyether group-containing silane compound (A), and promotes the formation of the layer formed by the surface treatment agent of the present disclosure.

[0333] In addition to the above, other components include, for example, tetraethoxysilane, methyltrimethoxysilane, 3-aminopropyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, methyltriacetoxysilane, and the like.

[0334] The surface treatment layer can be formed by applying a surface treatment agent to the substrate. The surface treatment agent can be applied so as to coat the substrate. The coating method is not particularly limited. For example, a wet coating method or a dry coating method can be used.

[0335] Examples of wet coating methods include dip coating, spin coating, brush coating, flow coating, spray coating, roll coating, gravure coating and similar methods, with spray coating being preferred.

[0336] Examples of dry coating methods include vapor deposition (usually vacuum deposition), sputtering, CVD, and similar methods. Specific examples of vapor deposition methods (usually vacuum deposition) include resistance heating, electron beam, high frequency heating using microwaves, etc., ion beam, and similar methods. Specific examples of CVD methods include plasma-CVD, optical CVD, thermal CVD, and similar methods.

[0337] Furthermore, coating by atmospheric pressure plasma method is also possible.

[0338] When using the wet coating method, the surface treatment agent of the present disclosure can be diluted with a solvent and then applied to the surface of a substrate. From the viewpoints of the stability of the composition of the present disclosure and the volatility of the solvent, the following solvents are preferably used: perfluoroaliphatic hydrocarbons having 5 to 12 carbon atoms (e.g., perfluorohexane, perfluoromethylcyclohexane, and perfluoro-1,3-dimethylcyclohexane); polyfluoroaromatic hydrocarbons (e.g., bis(trifluoromethyl)benzene); polyfluoroaliphatic hydrocarbons (e.g., C ６ F １３ CH ２ CH ３ (e.g., Asahiklin (registered trademark) AC-6000 manufactured by Asahi Glass Co., Ltd.), 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 (trademark) 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) (the perfluoroalkyl group and the alkyl group may be linear or branched), or CF ３ CH ２ OCF ２ CHF ２(For example, Asahiklin (registered trademark) AE-3000 manufactured by Asahi Glass Co., Ltd.)). These solvents can be used alone or as a mixture of two or more. Among them, hydrofluoroethers are preferred, and perfluorobutyl methyl ether (C ４ F ９ OCH ３ ) and / or perfluorobutyl ethyl ether (C ４ F ９ O.C. ２ H ５ ) is particularly preferred.

[0339] When the dry coating method is used, the surface treatment agent of the present disclosure may be subjected to the dry coating method as it is, or may be subjected to the dry coating method after being diluted with the above-mentioned solvent.

[0340] The surface treatment agent is preferably formed into a layer so that the surface treatment agent of the present disclosure is present together with a catalyst for hydrolysis and dehydration condensation in the layer. Conveniently, in the case of a wet coating method, the surface treatment agent of the present disclosure may be diluted with a solvent, and then the catalyst may be added to the diluted solution of the surface treatment agent of the present disclosure immediately before application to the surface of a substrate.

[0341] Any suitable acid or base can be used as the catalyst. Examples of acid catalysts that can be used include acetic acid, formic acid, and trifluoroacetic acid. Examples of base catalysts that can be used include ammonia and organic amines.

[0342] After application of the surface treatment agent, the surface treatment agent may be dried as needed. Such drying promotes hydrolysis and dehydration condensation of the fluoropolyether group-containing silane compound (A) described below, and can remove the solvent and the like.

[0343] The precursor layer may be dried at a temperature of preferably 0°C or higher and 300°C or lower, more preferably 70°C or higher and 230°C or lower, and even more preferably 120°C or higher and 180°C or lower, for a time of preferably 0.1 hours or higher and 2 hours or lower, more preferably 0.15 hours or higher and 1 hour or lower, and even more preferably 0.3 hours or higher and 0.8 hours or lower.

[0344] Substrates that can be used in the present disclosure may be made of any suitable material, such as glass, resin (which may be a natural or synthetic resin, for example, a general plastic material), OCA (Optical Clear Adhesive), polarizing plate metal, ceramics, semiconductors (silicon, germanium, etc.), electronic devices, fibers (woven fabrics, nonwoven fabrics, etc.), fur, leather, wood, ceramics, stone, etc., building materials, etc., sanitary products, etc.

[0345] In a preferred embodiment, the substrate is glass, resin, a polarizing plate, OCA (Optical Clear Adhesive), or metal, and is preferably glass, resin, a polarizing plate, or OCA (Optical Clear Adhesive).

[0346] As the above-mentioned glass, sapphire glass, soda-lime glass, alkali aluminosilicate glass, borosilicate glass, alkali-free glass, crystal glass, and quartz glass are preferred, and chemically strengthened soda-lime glass, chemically strengthened alkali aluminosilicate glass, and chemically bonded borosilicate glass are particularly preferred.

[0347] For example, when the laminate to be produced is a kitchen utensil, the material constituting the surface of the substrate may be, for example, glass.Examples of glass substrates used in kitchen utensils include those containing alkaline earth metals such as Mg and Ca.The total content of alkaline earth metals in the glass substrate is preferably 0.7 atomic % or more, more preferably 0.7 atomic % or more and 5 atomic % or less, even more preferably 1 atomic % or more and 5 atomic % or less, and even more preferably 1.5 atomic % or more and 4 atomic % or less.

[0348] In the glass substrate used for the kitchen utensils, the O atom content is preferably 60 atomic % or more and 80 atomic % or less, more preferably 65 atomic % or more and 75 atomic % or less. The Si atom content is preferably 20 atomic % or more and 30 atomic % or less, more preferably 20 atomic % or more and 25 atomic % or less. The Na atom content is preferably 0.5 atomic % or more and 5 atomic % or less, more preferably 1 atomic % or more and 4.5 atomic % or less. The Ca atom content is preferably 1 atomic % or more and 3 atomic % or less, more preferably 1.2 atomic % or more and 2.2 atomic % or less. The Mg atom content is preferably 0.2 atomic % or more and 2 atomic % or less, more preferably 0.4 atomic % or more and 1.6 atomic % or less. The Sn atom content is preferably 0 atomic % or more and 3 atomic % or less, more preferably 0.1 atomic % or more and 2.8 atomic % or less.

[0349] The linear thermal expansion coefficient of the glass substrate used in the kitchen utensil is preferably 150×10 －７ / K or less, more preferably 100×10 －７ / K or less, more preferably 60×10 －７ / K or less, preferably 90×10 －７ / K or more.

[0350] The thickness of the glass substrate used in the kitchen utensils may be preferably 1 mm or more and 10 mm or less, more preferably 1.5 mm or more and 5 mm or less.

[0351] For example, when the laminate to be produced is an optical component, the material constituting the surface of the substrate may be a material for optical components, such as glass or transparent plastic. When the laminate to be produced is an optical component, some layer (or film), 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 , Al２ O ３ , Ta ２ O ５ , Ta ３ O ５ , Nb ２ O ５ , HfO ２ , Si ３ N ４ , CeO ２ , MgO, Y ２ O ３ , SnO ２ , MgF ２ , W.O. ３ These inorganic materials 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 laminate to be produced 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.

[0352] The shape of the substrate is not particularly limited and may be, for example, a plate, a film, or other form. The surface region of the substrate on which the surface treatment layer is to be formed may be at least a part of the substrate surface, and may be appropriately determined depending on the application and specific specifications of the laminate to be produced.

[0353] According to the present disclosure, a laminate having good heat resistance can be provided, and in one aspect, such a laminate can preferably have good heat resistance even after a surface treatment agent is stored for a long period of time. Therefore, the laminate of the present disclosure can be suitably used as a functional thin film.

[0354] The laminate of the present disclosure can be preferably used as a substrate for various substrates, for example, as a substrate for kitchen utensils, and kitchen utensils containing such laminates are also included in the technical scope of the present disclosure. Such kitchen utensils include cooking appliances such as gas stoves, electric stoves, hot plates, range hoods, and refrigerators.

[0355] The laminate of the present disclosure can also be used as an optical material. Preferred examples of the optical material include optical materials related to displays, etc., such as those exemplified below, as well as a wide variety of other optical materials: for example, 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, vacuum fluorescent displays (VFDs), and field emission displays (FEDs), or protective plates for such displays, or displays whose surfaces have been treated with an anti-reflection film.

[0356] The laminate of the present disclosure may be an optical member, but is not particularly limited thereto. Examples of optical members include lenses for eyeglasses and the like; front protective plates, anti-reflection plates, polarizing plates, and anti-glare plates for displays such as PDPs and LCDs; touch panel sheets for devices such as mobile phones and personal digital assistants; 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 and clocks.

[0357] The laminate of the present disclosure may also be a medical device or medical material. Furthermore, a laminate having a layer obtained by 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.

[0358] Furthermore, the laminate of the present disclosure may be an electronic device, such as a portable terminal device such as a smartphone, a tablet, a laptop PC, or a camera; a wearable device such as a smart watch; or a display device such as a television, a liquid crystal display, an organic EL display, or an inorganic EL display.

[0359] The laminate of the present disclosure has been described in detail above. However, the laminate of the present disclosure and the method for manufacturing the laminate are not limited to those exemplified above.

[0360] The present invention will be explained in more detail with reference to the following examples, but the present invention is not limited to these examples.

[0361] Surface treatment agents (1) to (14) were prepared in the weight ratios shown in Table 1. The fluoropolyether group-containing silane compounds (1) and (2) and the low-molecular-weight fluorine-containing compounds or low-molecular-weight silane compounds (1) to (4) are as follows:

[0362] Fluoropolyether group-containing silane compound (1)

[0363] Fluoropolyether group-containing silane compound (2)

[0364] Low-molecular-weight fluorine-containing compound or low-molecular-weight silane compound (1): ethyl nonafluorobutyl ether Low-molecular-weight fluorine-containing compound or low-molecular-weight silane compound (2): methyl perfluoroisobutyl ether Low-molecular-weight fluorine-containing compound or low-molecular-weight silane compound (3): hexafluorobenzene Low-molecular-weight fluorine-containing compound or low-molecular-weight silane compound (4): trimethoxyvinylsilane Fluorine-based solvent (1): hexafluoropropene trimer ((T-1): (T-2): (T-3) = 15.0: 40.1: 44.9 (mass ratio)) Fluorine-based solvent (2): Ethyl perfluorobutyl ether

[0365]

[0366] The surface treatment agent was applied to a substrate according to the following procedure. Kitchen glass was pre-cleaned using an alkaline detergent to remove oil from the surface. The surface of the glass substrate was then activated using atmospheric pressure rotating plasma (atmospheric pressure plasma conditions: 0.8 kW, height: 10 mm). The surface treatment agent was applied to the glass substrate using a spray device, and then the substrate was dried by heating at 150°C for 30 minutes (spray conditions: 40 g / m ２ , height 30 mm) and then left to stand for 2 hours to prepare a glass substrate treated with the surface treatment agent.

[0367] Method for Evaluating Water Contact Angle 2 μL of water was dropped onto the treated substrate, and the water contact angle of the water droplet was measured.

[0368] (1) Stain Resistance Evaluation A test solution was prepared by mixing 2 parts by mass of edible oil, 2 parts by mass of household soy sauce, 2 parts by mass of cooking wine, 1 part by mass of vinegar, 1 part by mass of oyster sauce, 1 part by mass of miso, 1 part by mass of edible salt, 1 part by mass of edible monosodium glutamate, 1 part by mass of chicken essence, 1 part by mass of sugar, and 10 parts by mass of water. The test solution was applied to the surface of the treated substrate in a circle with an R of 0.5 cm and left for 2 hours. After leaving the surface, the surface was washed with dishwashing detergent and water, and the water contact angle of the coating in the test area was measured. A water contact angle of less than 90 degrees was evaluated as x, 90 degrees or more but less than 100 degrees as △, 100 degrees or more but less than 110 degrees as ○, and 110 degrees or more as ◎.

[0369] (2) High-Temperature Resistance The treated substrate was placed in a heating oven and treated at 250°C ± 3°C for 3 hours, then removed and cooled to room temperature for 60 minutes, rinsed with clean water, and the surface was wiped clean, and the water contact angle of the treated substrate was measured. Water contact angle was rated as follows: less than 90°: ×, 90° to less than 100°: △, 100° to less than 105°: ○, and 105° or more: ◎.

[0370] (3) Evaluation of antifouling properties of treated substrate after 1 month of storage of the composition After preparing the surface treatment agent, it was stored at 25°C for 30 days, and after storage, it was sprayed onto a substrate according to the procedure to prepare a treated substrate. Thereafter, it was evaluated in the same manner as in (1) Evaluation of antifouling properties.

[0371] (4) High temperature resistance of treated substrate after 1 month of storage of composition After preparing the surface treatment agent, it was stored at 25°C for 30 days, and after storage, it was sprayed onto a substrate according to the procedure to prepare a treated substrate. Thereafter, it was evaluated in the same manner as in (2) High temperature resistance.

[0372] (5) Abrasion resistance of treated substrate after 1 month storage of composition After preparing the surface treatment agent, it was stored at 25 ° C for 30 days, and after storage, it was sprayed onto a substrate according to the procedure to prepare a treated substrate. Thereafter, the abrasion resistance of the treated substrate was evaluated. Using 0000# steel wool (1 × 1 cm), the treated substrate was abraded with a load of 1 kg, an abrasion stroke of 6 cm, and a speed of 60 rpm, and the number of times the water contact angle became less than 90 degrees was taken as the abrasion resistance evaluation result. Abrasion resistance less than 3000 times: ×, abrasion resistance 3000 times or more but less than 5000 times: △, abrasion resistance 5000 times or more but less than 10,000 times: ○, abrasion resistance number 10,000 times or more: ◎.

[0373] (6) Alkali resistance of treated substrate after 1 month of composition storage After preparing the surface treatment agent, it was stored at 25°C for 30 days, and after storage, it was sprayed onto a substrate according to the procedure to prepare a treated substrate. The alkali resistance of the treated substrate was then evaluated. The treated substrate was immersed in a 5% aqueous sodium carbonate solution for 24 hours, then removed and rinsed with clean water, and the water on the surface was wiped off thoroughly, and the water contact angle was measured. Water contact angle less than 90 degrees: ×, 90 degrees or more but less than 100 degrees: △, 100 degrees or more but less than 110 degrees: ○, and 110 degrees or more: ◎.

[0374] (7) Acid resistance of treated substrate after 1 month storage of composition After preparing the surface treatment agent, it was stored at 25°C for 30 days, and after storage, it was sprayed onto a substrate according to the procedure to prepare a treated substrate. The acid resistance of the treated substrate was then evaluated. The treated substrate was immersed in a 5% aqueous solution of sodium acetate for 24 hours, then removed and rinsed with clean water, and the water on the surface was wiped off thoroughly, and the water contact angle was measured. Water contact angle less than 90 degrees: ×, 90 degrees or more but less than 100 degrees: △, 100 degrees or more but less than 110 degrees: ○, and 110 degrees or more: ◎.

[0375]

[0376] The surface treatment agent compositions described in Examples 1 to 12 not only provide excellent antifouling properties and high-temperature resistance to the surface-treated substrate, but also provide excellent antifouling properties, high-temperature resistance, abrasion resistance, alkali resistance, and acid resistance to the substrate treated with the surface treatment agent after long-term storage.

Claims

1. A composition comprising a fluoropolyether group-containing silane compound (A), a low-molecular-weight fluorine-containing compound or a low-molecular-weight silane compound (B), and a fluorine-based solvent (C), wherein the low-molecular-weight fluorine-containing compound or the low-molecular-weight silane compound (B) comprises one or more compounds selected from the group consisting of low-molecular-weight fluorine-containing compounds having an ether bond or an aromatic group and low-molecular-weight silane coupling agents, and the fluorine-based solvent (C) is a compound represented by the following formula: CR １ R ２ =CR ３ R ４ (C1) [In formula (C1), R １ is C １－６ represents a perfluoroalkyl group or a fluorine atom, R ２ is C １－６ represents a perfluoroalkyl group, R ３ is C １－６ represents a perfluoroalkyl group, R ４ is C １－６ A surface treatment agent comprising a compound represented by the formula:

2. The fluoropolyether group-containing silane compound (A) is represented by the following formula (1) or (2): [In the formula: R Ｆ１ is independently at each occurrence Rf １ -R Ｆ -O ｑ - or a fluoroalkyl group; R Ｆ２ is -Rf ２ ｐ -R Ｆ -O ｑ - or a fluoroalkylene group; Rf １ each occurrence independently represents a C optionally substituted by one or more fluorine atoms; １－１６ Rf is an alkyl group; ２ is a C optionally substituted by one or more fluorine atoms; １－６ is an alkylene group; R Ｆ is, independently in each occurrence, a divalent fluoropolyether group; p is 0 or 1; q is, independently in each occurrence, 0 or 1; R Ｓｉ is independently in each occurrence a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom, or a monovalent organic group is bonded; Ｓｉ is a monovalent group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded; X Ａ are each independently a single bond or a divalent to decavalent organic group; α is an integer of 1 to 9; β is an integer of 1 to 9; and γ is each independently an integer of 1 to 9.

3. The surface treatment agent according to claim 1 or 2, wherein the content of the fluoropolyether group-containing silane compound (A) is 0.01 mass % or more and 5 mass % or less based on the total amount of the surface treatment agent.

4. The surface treatment agent according to any one of claims 1 to 3, wherein the low-molecular-weight fluorine-containing compound or low-molecular-weight silane compound (B) comprises one or more compounds selected from the group consisting of low-molecular-weight fluorine-containing compounds having an ether bond (B-1), low-molecular-weight fluorine-containing compounds having an aromatic group (B-2), and low-molecular-weight silane coupling agents (B-3).

5. The surface treatment agent according to claim 4, wherein the content of the low-molecular-weight fluorine-containing compound (B-1) is 2 parts by mass or more and 1,000 parts by mass or less per part by mass of the fluoropolyether group-containing silane compound (A).

6. The surface treatment agent according to claim 4 or 5, wherein the content of the low-molecular-weight fluorine-containing compound (B-2) is 1 part by mass or more and 50 parts by mass or less per 100 parts by mass of the fluoropolyether group-containing silane compound (A).

7. The surface treatment agent according to any one of claims 4 to 6, wherein the content of the low-molecular-weight silane coupling agent (B-3) is 1 part by mass or more and 50 parts by mass or less per 100 parts by mass of the fluoropolyether group-containing silane compound (A).

8. The surface treatment agent according to any one of claims 1 to 7, wherein the boiling point of the fluorine-containing solvent (C) is 100°C or higher.

9. A laminate comprising a glass substrate and a surface treatment layer, the surface treatment layer being formed from the surface treatment agent according to any one of claims 1 to 8.

10. The laminate according to claim 9, wherein the thickness of the surface treatment layer is 5 nm or more and 50 nm or less.

11. The laminate according to claim 9 or 10, wherein the content of alkaline earth metal contained in the glass substrate is 0.7 atomic % or more.

12. A kitchen utensil comprising the laminate according to any one of claims 9 to 11.

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