Surface treatment agent

Abstract

The present invention relates to a surface treatment agent containing a fluorinated polyether group-containing silane compound and an amide compound, wherein the content of the amide compound is 0.5% by mass or more based on the entire surface treatment agent.

Description

Technical Field

[0001] The present invention relates to a surface treating agent and an article having a layer formed of the surface treating agent. Background Art

[0002] It is known that certain types of fluorinated polyether silane compounds, when used for surface treatment of substrates, can provide excellent water repellency, oil repellency, antifouling properties, etc. The layer obtained from the surface treatment agent containing the fluorinated polyether silane compound (hereinafter also referred to as "surface treatment layer") is applied as a so-called functional film to various substrates such as glass, plastic, fiber, sanitary products, building materials, etc. (Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2014-218639 Summary of the invention

[0006] Problems to be solved by the invention

[0007] The fluorinated polyether group-containing silane compound described in Patent Document 1 can provide a surface-treated layer having excellent functions, but a surface-treated layer having higher wear durability is still required.

[0008] An object of the present invention is to provide an article having a surface-treated layer having higher wear durability.

[0009] Technical solutions to solve problems

[0010] The present invention includes the following aspects.

[0011] [1] A surface treatment agent comprising a fluorinated polyether group-containing silane compound and an amide compound, wherein the amide compound is contained in an amount of 0.5% by mass or more based on the total amount of the surface treatment agent.

[0012] [2] The surface treatment agent according to [1] above, wherein the fluorinated polyether group-containing silane compound is at least one fluorinated polyether group-containing silane compound represented by the following formula (1) or (2).

[0013] R F1 α -X A -R Si β (1)

[0014] R Si γ -X A -R F2 -X A-R Si γ (2)

[0015] [Where:

[0016] R F1 Rf is independently 1 -R F -O q -;

[0017] R F2 Rf 2 p -R F -O q -;

[0018] R 1 Each occurrence is independently C which may be substituted with one or more fluorine atoms. 1－16 alkyl;

[0019] R 2 is C which may be substituted by one or more fluorine atoms 1－6 Alkylene;

[0020] R F Each occurrence is independently a divalent fluoropolyether group;

[0021] p is 0 or 1;

[0022] q is independently 0 or 1 at each occurrence;

[0023] R Si Each occurrence is independently 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;

[0024] At least 1 R Si It is a monovalent group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded;

[0025] X A Each is independently a single bond or a 2- to 10-valent organic group;

[0026] α is an integer from 1 to 9;

[0027] β is an integer from 1 to 9;

[0028] γ is each independently an integer of 1 to 9.]

[0029] [3] The surface treatment agent according to [2] above, wherein Rf 1 Each time it occurs, it is independently C 1－16 Perfluoroalkyl, Rf 2Each time it occurs, it is independently C 1－6 Perfluoroalkylene.

[0030] [4] The surface treatment agent according to [2] or [3] above, wherein R F Each time it occurs, it is independently of the formula: -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3R Fa 6) d -(OC2F4) e -(OCF2) f - the group shown.

[0031] [Where R Fa is independently a hydrogen atom, a fluorine atom or a chlorine atom at each occurrence,

[0032] a, b, c, d, e and f are each independently an integer of 0 to 200, the sum of a, b, c, d, e and f is 1 or more, and the order of existence of each repeating unit marked with a, b, c, d, e or f and enclosed in parentheses in the formula is arbitrary, but in all R Fa When it is a hydrogen atom or a chlorine atom, at least one of a, b, c, e and f is 1 or more.]

[0033] [5] The surface treatment agent according to [4] above, wherein R Fa A fluorine atom.

[0034] [6] The surface treatment agent according to any one of [2] to [5] above, wherein R F Each occurrence is independently a group represented by the following formula (f1), (f2), (f3), (f4) or (f5).

[0035] -(OC3F6) d -(OC2F4) e - (f1)

[0036] [Wherein, d is an integer of 1 to 200, and e is 0 or 1.]

[0037] -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f -(f2)

[0038] [wherein, c and d are each independently an integer of 0 to 30;

[0039] e and f are each independently an integer of 1 to 200;

[0040] The sum of c, d, e and f is an integer from 10 to 200;

[0041] The order of presence of the repeating units marked with the subscript c, d, e or f and enclosed in parentheses is arbitrary in the formula.]

[0042] -(R 6 -R 7 ) g - (f3)

[0043] [Where R 6 OCF2 or OC2F4;

[0044] R 7 is selected from OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 or a combination of 2 or 3 groups selected from these groups;

[0045] g is an integer from 2 to 100.]

[0046] -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f - (f4)

[0047] [In the formula, e is an integer from 1 to 200, a, b, c, d and f are each independently an integer from 0 to 200, and the order of existence of each repeating unit marked with a, b, c, d, e or f and enclosed in parentheses is arbitrary in the formula.]

[0048] -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f - (f5)

[0049] [In the formula, f is an integer from 1 to 200, a, b, c, d and e are each independently an integer from 0 to 200, and the order of existence of each repeating unit marked with a, b, c, d, e or f and enclosed in parentheses is arbitrary in the formula.]

[0050] [7] The surface treatment agent according to any one of [2] to [6] above, wherein

[0051] R Si It is a group represented by the following formula (S1), (S2), (S3), (S4) or (S5).

[0052]

[0053] -SiR 11 n1 R 12 3-n1 (S2)

[0054] -SiR a1 k1 R b1 11 R c1 m1 (S3)

[0055] -CR d1 k2 R e1 12 R f1 m2 (S4)

[0056] -NR g1 R h1 (S5)

[0057] [Where:

[0058] R 11 is independently a hydroxyl group or a hydrolyzable group at each occurrence;

[0059] R 12 Each occurrence is independently a hydrogen atom or a monovalent organic group;

[0060] n1 in each (SiR 11 n1 R 12 3-n1 ) units are independently an integer from 0 to 3;

[0061] X 11 Each occurrence is independently a single bond or a divalent organic group;

[0062] R 13Each occurrence is independently a hydrogen atom or a monovalent organic group;

[0063] t is independently an integer greater than 2 at each occurrence;

[0064] R 14 Each occurrence is independently a hydrogen atom, a halogen atom or -X 11 -SiR 11 n1 R 12 3-n1 ;

[0065] R a1 -Z independently at each occurrence 1 -SiR 21 p1 R 22 q1 R 23 r1 ;

[0066] Z 1 Each occurrence is independently an oxygen atom or a divalent organic group;

[0067] R 21 -Z independently at each occurrence 1′ -SiR 21′ p1′ R2 2′ q1′ R 23′ r1′ ;

[0068] R 22 is independently a hydroxyl group or a hydrolyzable group at each occurrence;

[0069] R 23 Each occurrence is independently a hydrogen atom or a monovalent organic group;

[0070] p1 is independently an integer from 0 to 3 at each occurrence;

[0071] q1 is independently an integer from 0 to 3 each time it appears;

[0072] r1 is independently an integer from 0 to 3 at each occurrence;

[0073] The sum of p1, q1 and r1 is 3;

[0074] Z 1′ Each occurrence is independently an oxygen atom or a divalent organic group;

[0075] R 21′ -Z independently at each occurrence1″ -SiR 22″ q1″ , R 23″ r1″ ;

[0076] R 22′ is independently a hydroxyl group or a hydrolyzable group at each occurrence;

[0077] R 23′ Each occurrence is independently a hydrogen atom or a monovalent organic group;

[0078] p1′ is independently an integer from 0 to 3 at each occurrence;

[0079] q1′ is independently an integer from 0 to 3 at each occurrence;

[0080] r1′ is independently an integer from 0 to 3 at each occurrence;

[0081] The sum of p1′, q1′ and r1′ is 3;

[0082] Z 1″ Each occurrence is independently an oxygen atom or a divalent organic group;

[0083] R 22″ is independently a hydroxyl group or a hydrolyzable group at each occurrence;

[0084] R 23″ Each occurrence is independently a hydrogen atom or a monovalent organic group;

[0085] q1″ is independently an integer from 0 to 3 at each occurrence;

[0086] r1″ is independently an integer from 0 to 3 at each occurrence;

[0087] The sum of q1″ and r1″ is 3;

[0088] R b1 is independently a hydroxyl group or a hydrolyzable group at each occurrence;

[0089] R c1 Each occurrence is independently a hydrogen atom or a monovalent organic group;

[0090] k1 is independently an integer from 0 to 3 at each occurrence;

[0091] l1 is independently an integer from 0 to 3 each time it appears;

[0092] m1 is independently an integer from 0 to 3 at each occurrence;

[0093] The sum of k1, l1 and m1 is 3;

[0094] R d1 Each time it occurs, it is independently -Z 2 -CR 31 p2 R 32 q2 R 33 r2 ;

[0095] Z 2 Each occurrence is independently a single bond, an oxygen atom or a divalent organic group;

[0096] R 31 Each time it occurs, it is independently -Z 2′ -CR 32′ q2′ R 33′ r2′ ;

[0097] R 32 Each time it occurs, it is independently -Z 3 -SiR 34 n2 R 35 3－n2 ;

[0098] R 33 Each occurrence is independently a hydrogen atom, a hydroxyl group or a monovalent organic group;

[0099] p2 is independently an integer from 0 to 3 at each occurrence;

[0100] q2 is independently an integer from 0 to 3 at each occurrence;

[0101] r2 is independently an integer from 0 to 3 at each occurrence;

[0102] The sum of p2, q2 and r2 is 3;

[0103] Z 2′ Each occurrence is independently a single bond, an oxygen atom or a divalent organic group;

[0104] R 32′ Each time it occurs, it is independently -Z 3 -SiR 34 n2 R 35 3－n2 ;

[0105] R 33′ Each occurrence is independently a hydrogen atom, a hydroxyl group or a monovalent organic group;

[0106] q2′ is independently an integer from 0 to 3 at each occurrence;

[0107] r2′ is independently an integer from 0 to 3 at each occurrence;

[0108] The sum of q2′ and r2′ is 3;

[0109] Z 3 Each occurrence is independently a single bond, an oxygen atom or a divalent organic group;

[0110] R 34 is independently a hydroxyl group or a hydrolyzable group at each occurrence;

[0111] R 35 Each occurrence is independently a hydrogen atom or a monovalent organic group;

[0112] n2 is independently an integer from 0 to 3 at each occurrence;

[0113] R e1 Each time it occurs, it is independently -Z 3 -SiR 34 n2 R 35 3－n2 ;

[0114] R f1 Each occurrence is independently a hydrogen atom, a hydroxyl group or a monovalent organic group;

[0115] k2 is independently an integer from 0 to 3 at each occurrence;

[0116] l2 is independently an integer from 0 to 3 at each occurrence;

[0117] m2 is independently an integer from 0 to 3 at each occurrence;

[0118] The sum of k2, l2 and m2 is 3;

[0119] R g1 and R h1 Each time it occurs, it is independently -Z 4 -SiR 11 n1 R 12 3－n1 , -Z 4 -SiR a1 k1 R b1 l1 R c1 m1 or -Z 4 -CR d1k2 R e1 l2 R f1 m2 ;

[0120] Z 4 Each occurrence is independently a single bond, an oxygen atom or a divalent organic group;

[0121] In formulas (S1), (S2), (S3), (S4) and (S5), there is at least one Si atom bonded with a hydroxyl group or a hydrolyzable group.]

[0122] [8] The surface treatment agent according to any one of [2] to [7] above, wherein α, β and γ are 1.

[0123] [9] The surface treatment agent according to [7] or [8], wherein the group represented by the formula (S1) is a group represented by the following formula (S1-b).

[0124]

[0125] [Where R 11 , R 12 , R 13 , X 11 , n1 and t have the same meanings as those in the above formula (S1).]

[0126]

[10] The surface treatment agent according to any one of [1] to [9] above, wherein the content of the amide compound is 0.5 to 10.0% by mass based on the total mass of the surface treatment agent.

[0127]

[11] The surface treatment agent according to any one of [1] to

[10] above, wherein the amide compound has a boiling point of 150 to 300° C. under atmospheric pressure.

[0128]

[12] The surface treatment agent according to any one of [1] to

[11] above, wherein the amide compound is an amide compound represented by the following formula (A).

[0129] NR 61 R 62 -COR 63 (A)

[0130] [Where:

[0131] R 61 A hydrogen atom or C 1－10 alkyl;

[0132] R 62 C 1－10 alkyl;

[0133] R 63 For hydrogen atoms, C 1－10 Alkyl, NR 65 2. or -R 66 x -R 67 y -R 68 ;

[0134] or R 62 and R 63 Respectively bond to form -R 62 -R 63 -, the -R 62 -R 63 - for C 3－4 Alkylene or -C 2－3 Alkylene-NR 65 -;

[0135] R 65 are independently a hydrogen atom or a C 1－10 alkyl;

[0136] R 66 Each time it occurs, it is independently C 1－6 Alkylene;

[0137] R 67 is oxygen atom or CO;

[0138] R 68 C 1－10 alkyl;

[0139] x is an integer from 1 to 6;

[0140] y is an integer from 1 to 6;

[0141] Here, -R 66 x -R 67 y -R 68 In, R 66 and R 67 The order in which each exists is arbitrary.]

[0142]

[13] The surface treatment agent according to

[12] above, wherein R 63 For -R 66 x -R 67 y -R 68 .

[0143]

[14] The surface treatment agent according to

[12] above, wherein R 63 For -R 66 -R67 -R 66 -R 68 .

[0144]

[15] The surface treatment agent according to

[12] above, wherein R 62 and R 63 Respectively bond to form -R 62 -R 63 -, the -R 62 -R 63 - for C 3－4 Alkylene.

[0145]

[16] The surface treatment agent according to any one of [1] to

[15] above, further comprising one or more other components selected from fluorinated oil, silicone oil and a catalyst.

[0146]

[17] The surface treatment agent according to any one of [1] to

[16] above, further comprising a solvent.

[0147]

[18] The surface treatment agent according to any one of [1] to

[17] above, wherein the surface treatment agent is used as an antifouling coating agent or a water-repellent coating agent.

[0148]

[19] A pellet containing the surface treatment agent according to any one of [1] to

[17] above.

[0149]

[20] An article comprising a substrate and a layer formed on the substrate using the surface treatment agent according to any one of [1] to

[18] above.

[0150]

[21] The article as described in

[20] above, wherein the substrate is a glass substrate.

[0151]

[22] The article as described in

[20] above, wherein the article is an optical component.

[0152] Effects of the Invention

[0153] According to the present invention, there is provided a surface treatment agent capable of obtaining a surface treatment layer having higher wear durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0154] Figure 1 The results of the stability tests in Examples are shown. DETAILED DESCRIPTION

[0155] When used in this specification, "monovalent organic group" refers to a monovalent group containing carbon. The monovalent organic group is not particularly limited, and may be a hydrocarbon group or a derivative thereof. A derivative of a hydrocarbon group refers to a group having one or more N, O, S, Si, amide group, sulfonyl group, siloxane group, carbonyl group, carbonyloxy group, etc. at the end of the hydrocarbon group or in the molecular chain. Among them, when simply written as "organic group", it means a monovalent organic group. In addition, "2- to 10-valent organic group" refers to a carbon-containing 2- to 10-valent group. The 2- to 10-valent organic group is not particularly limited, and 2- to 10-valent groups from which 1 to 9 hydrogen atoms are further separated can be listed. For example, as a divalent organic group, it is not particularly limited, and a divalent group from which 1 hydrogen atom is further separated can be listed.

[0156] As used in this specification, a "hydrocarbon group" is a group containing carbon and hydrogen, and refers to a group in which one hydrogen atom is separated from a hydrocarbon. The hydrocarbon group is not particularly limited, and examples thereof include C 1－20 Hydrocarbon groups include aliphatic hydrocarbon groups, aromatic hydrocarbon groups, etc. The aliphatic hydrocarbon group may be linear, branched, or cyclic, and may be saturated or unsaturated. In addition, the hydrocarbon group may contain one or more ring structures.

[0157] As used in the present specification, the substituent of the "hydrocarbon group" is not particularly limited, and examples thereof include halogen atoms, C 1－6 Alkyl, C 2－6 Alkenyl, C 2－6 Alkynyl, C 3－10 Cycloalkyl, C 3－10 unsaturated cycloalkyl, 5- to 10-membered heterocyclic group, 5- to 10-membered unsaturated heterocyclic group, C 6－10 One or more of an aryl group and a 5- to 10-membered heteroaryl group.

[0158] As used in this specification, a "hydrolyzable group" refers to a group that can undergo a hydrolysis reaction, that is, a group that can be separated 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 (in these formulas, R j represents substituted or unsubstituted C 1－4 Alkyl) etc.

[0159] The surface treatment agent of the present invention contains a fluorinated polyether group-containing silane compound and an amide compound.

[0160] In the surface treatment agent of the present invention, by further containing an amide compound in addition to the fluorinated polyether group-containing silane compound, a surface treatment layer having improved friction resistance can be obtained.

[0161] (Fluorinated polyether group-containing silane compound)

[0162] The fluorinated polyether group-containing silane compound contains fluorine and is a compound capable of forming a surface-treated layer having antifouling properties.

[0163] In one embodiment, the fluorinated polyether group-containing silane compound is at least one fluorinated polyether group-containing silane compound represented by the following formula (1) or (2).

[0164] R F1 u -X A -R Si β (1)

[0165] R Si γ -X A -R F2 -X A -R Si γ (2)

[0166] [Where:

[0167] R F1 Rf is independently 1 -R F -O q -;

[0168] R F2 Rf 2 p -R F -O q -;

[0169] R 1 Each occurrence is independently C which may be substituted with one or more fluorine atoms. 1－16 alkyl;

[0170] R 2 is C which may be substituted by one or more fluorine atoms 1－6 Alkylene;

[0171] R F Each occurrence is independently a divalent fluoropolyether group;

[0172] p is 0 or 1;

[0173] q is independently 0 or 1 at each occurrence;

[0174] R Si Each occurrence is independently 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;

[0175] At least 1 R Si It is a monovalent group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded;

[0176] X A Each is independently a single bond or a 2- to 10-valent organic group;

[0177] α is an integer from 1 to 9;

[0178] β is an integer from 1 to 9;

[0179] γ is each independently an integer of 1 to 9.]

[0180] In the above formula (1), R F1 Rf is independently 1 -R F -O q -

[0181] In the above formula (2), R F2 Rf 2 p -R F -O q -

[0182] In the above formula, Rf 1 Each occurrence is independently C which may be substituted with one or more fluorine atoms. 1－16 alkyl.

[0183] The above C may be substituted with one or more fluorine atoms 1－16 The "C" in the alkyl 1－16 The "alkyl" may be a straight chain or a branched chain, preferably a straight chain or a branched chain C 1－6 Alkyl groups, especially C 1－3 Alkyl, more preferably a straight chain C 1－6 Alkyl groups, especially C 1－3 alkyl.

[0184] The above Rf 1 Preferably, C is substituted with one or more fluorine atoms. 1－16 Alkyl, more preferably CF2H-C 1－15 Perfluoroalkylene, more preferably C1－16 Perfluoroalkyl.

[0185] C 1－16 The perfluoroalkyl group may be a straight chain or a branched chain, preferably a straight chain or a branched chain C 1－6 Perfluoroalkyl, especially C 1－3 Perfluoroalkyl, more preferably linear C 1－6 Perfluoroalkyl, especially C 1－3 Perfluoroalkyl group, specifically -CF3, -CF2CF3 or -CF2CF2CF3.

[0186] In the above formula, Rf 2 is C which may be substituted by one or more fluorine atoms 1－6 Alkylene.

[0187] The above C may be substituted with one or more fluorine atoms 1－6 The "C" in the alkylene 1－6 The "alkylene" may be a straight chain or a branched chain, preferably a straight chain or a branched chain C 1－3 Alkylene, more preferably a straight chain C 1－3 Alkylene.

[0188] The above Rf 2 Preferably, C is substituted with one or more fluorine atoms. 1－6 Alkylene, more preferably C 1－6 Perfluoroalkylene, more preferably C 1－3 Perfluoroalkylene.

[0189] C 1－6 The perfluoroalkylene group may be a straight chain or a branched chain, preferably a straight chain or a branched chain C 1－3 Perfluoroalkylene, more preferably linear C 1－3 Perfluoroalkylene is specifically -CF2-, -CF2CF2- or -CF2CF2CF2-.

[0190] In the above formula, p is 0 or 1. In one embodiment, p is 0. In another embodiment, p is 1.

[0191] In the above formula, q is independently 0 or 1 at each occurrence. In one embodiment, q is 0. In another embodiment, q is 1.

[0192] In the above formulas (1) and (2), R F Each occurrence is independently a divalent fluorinated polyether group.

[0193] R F Preferred are groups represented by the following formulas.

[0194] -(OC6F12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3R Fa 6) d -(OC2F4) e -(OCF2) f -

[0195] [Where:

[0196] R Fa is independently a hydrogen atom, a fluorine atom or a chlorine atom at each occurrence,

[0197] 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 existence of each repeating unit indicated by a, b, c, d, e or f and enclosed in parentheses in the formula is arbitrary. Fa When it is a hydrogen atom or a chlorine atom, at least one of a, b, c, e and f is 1 or more. ].

[0198] R Fa Preferably it is a hydrogen atom or a fluorine atom, more preferably a fluorine atom. Fa When it is a hydrogen atom or a chlorine atom, at least one of a, b, c, e and f is 1 or more.

[0199] It is preferred that a, b, c, d, e and f are each independently an integer of 0 to 100.

[0200] The sum of a, b, c, d, e and f is preferably 5 or more, more preferably 10 or more, 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, further preferably 60 or less, for example, 50 or less or 30 or less.

[0201] These repeating units can be straight chain or branched chain. 12 )- can be -(OCF2CF2CF2CF2CF2CF2)-, -(OCF(CF3)CF2CF2CF2CF2)-, -(OCF2CF(CF3)CF2CF2CF2)-, -(OCF2CF2CF(CF3)CF2CF2)-, -(OCF2CF2CF2CF(CF3)CF2)-, -(OCF2CF2CF2CF2CF(CF3))-, etc. -(OC5F 10)- may be any of -(OCF2CF2CF2CF2CF2)-, -(OCF(CF3)CF2CF2CF2)-, -(OCF2CF(CF3)CF2CF2)-, -(OCF2CF2CF(CF3)CF2)-, -(OCF2CF2CF2CF(CF3))-, etc. -(OC4F8)- may be any of -(OCF2CF2CF2CF2)-, -(OCF(CF3)CF2CF2)-, -(OCF2CF(CF3)CF2)-, -(OCF2CF2CF(CF3))-, -(OC(CF3)2CF2)-, -(OCF2C(CF3)2)-, -(OCF(CF3)CF(CF3))-, -(OCF(C2F5)CF2)-, and -(OCF2CF(C2F5))-. -(OC3F6)-(i.e., R Fa is a fluorine atom) may be any of -(OCF2CF2CF2)-, -(OCF(CF3)CF2)- and -(OCF2CF(CF3))-. -(OC2F4)- may be any of -(OCF2CF2)- and -(OCF(CF3))-.

[0202] In one embodiment, the repeating unit is linear. When the repeating unit is linear, the surface slip property, wear durability, etc. of the surface treatment layer can be improved.

[0203] 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.

[0204] In one approach, R F Each occurrence is independently a group represented by any one of the following formulae (f1) to (f5).

[0205] -(OC3F6) d -(OC2F4) e - (f1)

[0206] [Wherein, d is an integer of 1 to 200, and e is 0 or 1.]

[0207] -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f -(f2)

[0208] [wherein, c and d are each independently an integer from 0 to 30, e and f are each independently an integer from 1 to 200,

[0209] The sum of c, d, e and f is greater than 2,

[0210] The order of presence of the repeating units marked with the subscript c, d, e or f and enclosed in parentheses is arbitrary in the formula.]

[0211] -(R 6 -R 7 ) g - (f3)

[0212] [Where R 6 For OCF2 or OC2F4,

[0213] R 7 is selected from OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 or a combination of 2 or 3 groups independently selected from these groups,

[0214] g is an integer from 2 to 100.]

[0215] -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f - (f4)

[0216] [In the formula, e is an integer from 1 to 200, a, b, c, d and f are each independently an integer from 0 to 200, and the order of existence of each repeating unit marked with a, b, c, d, e or f and enclosed in parentheses is arbitrary in the formula.]

[0217] -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f - (f5)

[0218] [In the formula, f is an integer from 1 to 200, a, b, c, d and e are each independently an integer from 0 to 200, and the order of existence of each repeating unit marked with a, b, c, d, e or f and enclosed in parentheses is arbitrary in the formula.]

[0219] In the above formula (f1), d is preferably an integer of 5 to 200, more preferably an integer of 10 to 100, further preferably an integer of 15 to 50, for example, an integer of 25 to 35. In one embodiment, e is 1. In another embodiment, e is 0. In the above formula (f1), OC3F6 is preferably OCF2CF2CF2, OCF2CF(CF3) or OCF(CF3)CF2, more preferably OCF2CF2CF2.

[0220] In the above formula (f2), e and f are each independently preferably an integer of 5 to 200, and more preferably an integer of 10 to 200. In addition, the sum of c, d, e and f is preferably 5 or more, and more preferably 10 or more, for example, 15 or more or 20 or more. In one embodiment, the above formula (f2) is preferably -(OCF2CF2CF2CF2) c -(OCF2CF2CF2) d -(OCF2CF2) e -(OCF2) f In another embodiment, formula (f2) may be -(OC2F4) e -(OCF2) f - the group shown.

[0221] In the above formula (f3), R 6 Preferably, it is OC2F4. In the above (f3), R 7It is preferably a group selected from OC2F4, OC3F6 and OC4F8, or a combination of two or three groups independently selected from these groups, and more preferably a group selected from OC3F6 and OC4F8. The combination of two or three groups independently selected from OC2F4, OC3F6 and OC4F8 is not particularly limited, and examples thereof include -OC2F4OC3F6-, -OC2F4OC4F8-, -OC3F6OC2F4-, -OC3F6OC3F6-, -OC3F6OC4F8-, -OC4F8OC4F8-, -OC4F8OC3F6-, -OC4F8OC2F4-, -OC2 F4OC2F4OC3F6-, -OC2F4OC2F4OC4F8-, -OC2F4OC3F6OC2F4-, -OC2F4OC3F6OC3F6-, -OC2F4OC4F8OC2F4-, -OC3F6OC2F4OC2F4-, -OC3F6OC2F4OC3F6-, -OC3F6OC3F6OC2F4- and -OC4F8OC2F4OC2F4-. In the above formula (f3), g is preferably an integer greater than or equal to 3, and more preferably an integer greater than or equal to 5. The above g is preferably an integer less than or equal to 50. In the above formula (f3), OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 It may be either a straight chain or a branched chain, preferably a straight chain. In this embodiment, the above formula (f3) is preferably -(OC2F4-OC3F6) g - or - (OC2F4 - OC4F8) g -

[0222] In the above formula (f4), e is preferably an integer of 1 to 100, more preferably an integer of 5 to 100. The sum of a, b, c, d, e and f is preferably 5 or more, more preferably 10 or more, for example 10 to 100.

[0223] In the above formula (f5), f is preferably an integer of 1 to 100, more preferably an integer of 5 to 100. The sum of a, b, c, d, e and f is preferably 5 or more, more preferably 10 or more, for example 10 to 100.

[0224] In one embodiment, the above R F It is a group represented by the above formula (f1).

[0225] In one embodiment, the above R F It is a group represented by the above formula (f2).

[0226] In one embodiment, the above R F It is a group represented by the above formula (f3).

[0227] In one embodiment, the above R F It is a group represented by the above formula (f4).

[0228] In one embodiment, the above R F It is a group represented by the above formula (f5).

[0229] In the above R F In the embodiment of the present invention, the ratio of e to f (hereinafter referred to as "e / f ratio") is 0.1 to 10, preferably 0.2 to 5, more preferably 0.2 to 2, further preferably 0.2 to 1.5, and further more preferably 0.2 to 0.85. By making the e / f ratio less than 10, the sliding property, wear durability and chemical resistance (for example, durability to artificial sweat) of the surface treatment layer obtained from the compound are further improved. The smaller the e / f ratio, the higher the sliding property and wear durability of the surface treatment layer. On the other hand, by making the e / f ratio greater than 0.1, the stability of the compound can be further improved. The larger the e / f ratio, the higher the stability of the compound.

[0230] In one embodiment, the e / f ratio is preferably 0.2 to 0.95, and more preferably 0.2 to 0.9.

[0231] In one embodiment, from the viewpoint of heat resistance, the e / f ratio is preferably 1.0 or more, and more preferably 1.0 to 2.0.

[0232] In the above fluorinated polyether silane compound, R F1 and R F2 The number average molecular weight of the moiety is not particularly limited, and 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 is obtained by 19 The value measured by F-NMR.

[0233] In another way, R F1 and R F2 The number average molecular weight of the moiety is 500 to 30,000, preferably 1,000 to 20,000, more preferably 2,000 to 15,000, further preferably 2,000 to 10,000, and for example, may be 3,000 to 6,000.

[0234] In another way, R F1 and R F2 The number average molecular weight of the moiety is 4,000 to 30,000, preferably 5,000 to 10,000, more preferably 6,000 to 10,000.

[0235] In the above formulas (1) and (2), R Si Each occurrence is independently 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, and at least one R Si It is a monovalent group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded.

[0236] Here, the term "hydrolyzable group" refers to a group that can undergo hydrolysis reaction, that is, a group that can be separated from the main skeleton of the compound by hydrolysis reaction. Examples of hydrolyzable groups include -OR j , -OCOR j 、-O-N=CR j 2. -NR j 2. -NHR j , -NCO, halogen (in these formulas, R j represents substituted or unsubstituted C 1－4 Alkyl) etc.

[0237] In a preferred embodiment, R Si It is a monovalent group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded.

[0238] In a preferred embodiment, R Si It is a group represented by the following formula (S1), (S2), (S3) or (S4).

[0239]

[0240] -SiR 11 n1 R 12 3-n1 (S2)

[0241] -SiR a1 k1 R b1 11 R c1 m1 (S3)

[0242] -CR d1 k2 R e1 12 R f1 m2 (S4)

[0243] -NR g1 R h1 (S5)

[0244] In the above formula, R 11Each occurrence is independently a hydroxyl group or a hydrolyzable group.

[0245] R 11 Preferably, each occurrence is independently a hydrolyzable group.

[0246] R 11 Preferably, each occurrence is independently -OR j 、-OCOR j 、-ON=CR j 2. -NR j 2. -NHR j , -NCO or halogen (in these formulas, R j represents substituted or unsubstituted C 1-4 alkyl), more preferably -OR j (i.e., alkoxy). j , which may include: unsubstituted alkyl groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, etc.; substituted alkyl groups such as chloromethyl, etc. Among these, alkyl groups are preferred, unsubstituted alkyl groups are particularly preferred, and methyl or ethyl groups are more preferred. In one embodiment, R j is methyl, in another embodiment, R j It is ethyl.

[0247] In the above formula, R 12 Each occurrence of is independently a hydrogen atom or a monovalent organic group. The monovalent organic group is a monovalent organic group other than the above-mentioned hydrolyzable group.

[0248] In R 12 The monovalent organic group is preferably C 1-20 Alkyl, more preferably C 1-6 The alkyl group is more preferably a methyl group.

[0249] In the above formula, n1 is in each (SiR 11 n1 R 12 3-n1 ) units are independently an integer of 0 to 3. Si In the case of a group represented by formula (S1) or (S2), R at the end of formula (1) and formula (2) is Si part (hereinafter also referred to as the "terminal part" of formula (1) and formula (2)), there is at least one (SiR 11 n1 R 12 3-n1 ) unit. That is, at the terminal part, all n1 are not 0 at the same time. In other words, at the terminal part of formula (1) and formula (2), there is at least one Si atom bonded with a hydroxyl group or a hydrolyzable group.

[0250] n1 in (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.

[0251] In the above formula, X 11 Each occurrence is independently a single bond or a divalent organic group. The divalent organic group is preferably -R 28 -O x -R 29 -(where R 28 and R 29 Each occurrence is independently a single bond or C 1－20 alkylene, x is 0 or 1). 1－20 The alkylene group may be a straight chain or a branched chain, and is preferably a straight chain. 1－20 The alkylene group is preferably C 1－10 Alkylene, more preferably C 1－6 Alkylene, more preferably C 1－3 Alkylene.

[0252] In one approach, X 11 Each time it occurs, it is independently -C 1－6 Alkylene-O-C 1－6 Alkylene-or-O-C 1－6 Alkylene-.

[0253] In a preferred embodiment, X 11 Each occurrence is independently a single bond or a linear C 1－6 Alkylene, preferably a single bond or straight chain C 1－3 Alkylene, more preferably a single bond or straight chain C 1－2 Alkylene, more preferably a straight chain C 1－2 Alkylene.

[0254] In the above formula, R 13 Each occurrence is independently a hydrogen atom or a monovalent organic group. The monovalent organic group is preferably C 1－20 Alkyl. 1－20 The alkyl group may be a linear chain or a branched chain, and is preferably a linear chain.

[0255] In a preferred embodiment, R 13 Each occurrence is independently a hydrogen atom or a linear C 1－6 Alkyl, preferably a hydrogen atom or a straight-chain C 1－3 The alkyl group is preferably a hydrogen atom or a methyl group.

[0256] In the above formula, t is independently an integer greater than or equal to 2 at each occurrence.

[0257] In a preferred embodiment, t is independently an integer of 2 to 10, preferably an integer of 2 to 6, at each occurrence.

[0258] In the above formula, R 14 Each occurrence is independently a hydrogen atom, a halogen atom or -X 11 -SiR 11 n1 R 12 3－n1 The 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 A hydrogen atom.

[0259] In one embodiment, formula (S1) is the following formula (S1-a).

[0260]

[0261] [Wherein,

[0262] R 11 , R 12 , R 13 , X 11 and n1 have the same meanings as those described in the above formula (S1);

[0263] t1 and t2 are each independently an integer greater than 1, preferably an integer from 1 to 10, more preferably an integer from 2 to 10, for example an integer from 1 to 5 or an integer from 2 to 5;

[0264] The order of presence of the repeating units indicated by t1 and t2 and enclosed in parentheses is arbitrary in the formula.]

[0265] In a preferred embodiment, formula (S1) is the following formula (S1-b).

[0266]

[0267] [Where R 11 , R 12 , R 13 , X 11 , n1 and t have the same meanings as those in the above formula (S1).]

[0268] In the above formula, R a1 Each time it occurs, it is independently -Z 1 -SiR 21 p1 R 22 q1 R 23r1 .

[0269] The above Z 1 Each occurrence is independently an oxygen atom or a divalent organic group. 1 The right side of the structure is bonded to (SiR 21 p1 R 22 q1 R 23 r1 ).

[0270] In a preferred embodiment, Z 1 It is a divalent organic group.

[0271] In a preferred embodiment, Z 1 Not including Z 1 The bonded Si atom forms a siloxane bond. 1 -Si) does not contain siloxane bonds.

[0272] The above Z 1 Preferably C 1－6 Alkylene, -(CH2) z1 -O-(CH2) 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 -(CH2) z3 -phenylene-(CH2) 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 a straight chain or a branched chain, preferably a straight chain. 1－6 Alkyl, C 2－6 Alkenyl and C 2－6 One or more substituents in the alkynyl group may be substituted, but preferably the alkynyl group is unsubstituted.

[0273] In a preferred embodiment, Z 1 C 1－6 Alkylene or -(CH2) z3 -phenylene-(CH2) z4 -, preferably -phenylene-(CH2) z4 -. In Z 1 In the case of these groups, light resistance, particularly ultraviolet resistance, is further improved.

[0274] In another preferred embodiment, the above Z 1 C 1－3 In one embodiment, Z1 It can be -CH2CH2CH2-. In another embodiment, Z 1 It can be -CH2CH2-.

[0275] The above R 21 Each time it occurs, it is independently -Z 1′ -SiR 21′ p1′ R 22′ q1′ R 23′ r1′ .

[0276] The above Z 1′ Each occurrence is independently an oxygen atom or a divalent organic group. 1′ The right side of the structure is bonded to (SiR 21′ p1′ R 22′ q1′ R 23′ r1′ ).

[0277] In a preferred embodiment, Z 1′ It is a divalent organic group.

[0278] In a preferred embodiment, Z 1′ Not including Z 1′ The bonded Si atom forms a siloxane bond. 1′ -Si) does not contain siloxane bonds.

[0279] The above Z 1′ Preferably C 1－6 Alkylene, -(CH2) z1′ -O-(CH2) 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 -(CH2) z3′ -phenylene-(CH2) 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 a straight chain or a branched chain, preferably a straight chain. 1－6 Alkyl, C 2－6 Alkenyl and C 2－6 One or more substituents in the alkynyl group may be substituted, but preferably the alkynyl group is unsubstituted.

[0280] In a preferred embodiment, Z 1′ C 1－6Alkylene or -(CH2) z3′ -phenylene-(CH2) z4′ -, preferably -phenylene-(CH2) z4′ -. In Z 1′ In the case of these groups, light resistance, particularly ultraviolet resistance, is further improved.

[0281] In another preferred embodiment, the above Z 1′ C 1－3 In one embodiment, Z 1′ It can be -CH2CH2CH2-. In another embodiment, Z 1′ It can be -CH2CH2-.

[0282] The above R 21′ Each time it occurs, it is independently -Z 1″ -SiR 22″ q1″ R 23″ r1″ .

[0283] The above Z 1″ Each occurrence is independently an oxygen atom or a divalent organic group. 1″ The right side of the structure is bonded to (SiR 22″ q1″ R 23″ r1″ ).

[0284] In a preferred embodiment, Z 1″ It is a divalent organic group.

[0285] In a preferred embodiment, Z 1″ Not including Z 1″ The bonded Si atom forms a siloxane bond. 1″ -Si) does not contain siloxane bonds.

[0286] The above Z 1″ Preferably C 1－6 Alkylene, -(CH2) z1″ -O-(CH2) 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 -(CH2) z3″ -phenylene-(CH2) 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). 1－6The alkylene group may be a straight chain or a branched chain, preferably a straight chain. 1－6 Alkyl, C 2－6 Alkenyl and C 2－6 One or more substituents in the alkynyl group may be substituted, but preferably the alkynyl group is unsubstituted.

[0287] In a preferred embodiment, Z 1″ C 1－6 Alkylene or -(CH2) z3″ -phenylene-(CH2) z4″ -, preferably -phenylene-(CH2) z4″ -. In Z 1″ In the case of these groups, light resistance, particularly ultraviolet resistance, is further improved.

[0288] In another preferred embodiment, the above Z 1″ C 1－3 In one embodiment, Z 1″ It can be -CH2CH2CH2-. In another embodiment, Z 1″ It can be -CH2CH2-.

[0289] The above R 22″ Each occurrence is independently a hydroxyl group or a hydrolyzable group.

[0290] The above R 22″ Preferably, each occurrence is independently a hydrolyzable group.

[0291] The above R 22″ Preferably, each occurrence is independently -OR j , -OCOR j 、-O-N=CR j 2. -NR j 2. -NHR j , -NCO or halogen (in these formulas, R j represents substituted or unsubstituted C 1－4 alkyl), more preferably -OR j (i.e., alkoxy). j , which may include: unsubstituted alkyl groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, etc.; substituted alkyl groups such as chloromethyl, etc. Among these, alkyl groups are preferred, unsubstituted alkyl groups are particularly preferred, and methyl or ethyl groups are more preferred. In one embodiment, R j is methyl, in another embodiment, R j It is ethyl.

[0292] The above R 23″Each occurrence of is independently a hydrogen atom or a monovalent organic group. The monovalent organic group is a monovalent organic group other than the above-mentioned hydrolyzable group.

[0293] In the above R 23″ The monovalent organic group is preferably C 1－20 Alkyl, more preferably C 1－6 The alkyl group is more preferably a methyl group.

[0294] The above q1" is independently an integer of 0 to 3 at each occurrence, and the above r1" is independently an integer of 0 to 3 at each occurrence. The sum of q1" and r1" is (SiR 22″ q1″ R 23″ r1″ ) unit is 3.

[0295] The above q1" is in each (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.

[0296] The above R 22′ Each occurrence is independently a hydroxyl group or a hydrolyzable group.

[0297] R 22′ Preferably, each occurrence is independently a hydrolyzable group.

[0298] R 22′ Preferably, each occurrence is independently -OR j , -OCOR j 、-O-N=CR j 2. -NR j 2. -NHR j , -NCO or halogen (in these formulas, R j represents substituted or unsubstituted C 1－4 alkyl), more preferably -OR j (i.e., alkoxy). j , which may include: unsubstituted alkyl groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, etc.; substituted alkyl groups such as chloromethyl, etc. Among these, alkyl groups are preferred, unsubstituted alkyl groups are particularly preferred, and methyl or ethyl groups are more preferred. In one embodiment, R j is methyl, in another embodiment, R j It is ethyl.

[0299] The above R 23′Each occurrence of is independently a hydrogen atom or a monovalent organic group. The monovalent organic group is a monovalent organic group other than the above-mentioned hydrolyzable group.

[0300] In R 23′ The monovalent organic group is preferably C 1－20 Alkyl, more preferably C 1－6 The alkyl group is more preferably a methyl group.

[0301] The above p1' is independently an integer of 0 to 3 at each occurrence, q1' is independently an integer of 0 to 3 at each occurrence, and r1' is independently an integer of 0 to 3 at each occurrence. The sum of p', q1' and r1' is (SiR 21′ p1′ R 22′ q1′ R 23′ r1′ ) unit is 3.

[0302] In one embodiment, p1′ is zero.

[0303] In one embodiment, p1′ is 21′ p1′ R 22′ q1′ R 23′ r1′ ) units are each independently an integer of 1 to 3, an integer of 2 to 3, or 3. In a preferred embodiment, p1' is 3.

[0304] In one embodiment, q1′ is 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.

[0305] In one embodiment, p1′ is 0 and q1′ is 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.

[0306] The above R 22 Each occurrence is independently a hydroxyl group or a hydrolyzable group.

[0307] R 22 Preferably, each occurrence is independently a hydrolyzable group.

[0308] R 22 Preferably, each occurrence is independently -OR j , -OCOR j 、-O-N=CR j 2. -NR j 2. -NHR j , -NCO or halogen (in these formulas, R j represents substituted or unsubstituted C 1－4 alkyl), more preferably -OR j (i.e., alkoxy). j , which may include: unsubstituted alkyl groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, etc.; substituted alkyl groups such as chloromethyl, etc. Among these, alkyl groups are preferred, unsubstituted alkyl groups are particularly preferred, and methyl or ethyl groups are more preferred. In one embodiment, R j is methyl, in another embodiment, R j It is ethyl.

[0309] The above R 23 Each occurrence of is independently a hydrogen atom or a monovalent organic group. The monovalent organic group is a monovalent organic group other than the above-mentioned hydrolyzable group.

[0310] In R 23 The monovalent organic group is preferably C 1－20 Alkyl, more preferably C 1－6 The alkyl group is more preferably a methyl group.

[0311] The above p1 is independently an integer of 0 to 3 at each occurrence, q1 is independently an integer of 0 to 3 at each occurrence, and r1 is independently an integer of 0 to 3 at each occurrence. The sum of p1, q1 and r1 is (SiR 21 p1 R 22 q1 R 23 r1 ) unit is 3.

[0312] In one embodiment, p1 is zero.

[0313] In one embodiment, p1 is 21 p1 R 22 q1 R 23 r1 ) units are each independently an integer of 1 to 3, an integer of 2 to 3, or 3. In a preferred embodiment, p1 is 3.

[0314] In one embodiment, q1 is21 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.

[0315] In one embodiment, p1 is 0 and q1 is 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.

[0316] In the above formula, R b1 Each occurrence is independently a hydroxyl group or a hydrolyzable group.

[0317] The above R b1 Preferably, each occurrence is independently a hydrolyzable group.

[0318] The above R b1 Preferably, each occurrence is independently -OR j , -OCOR j 、-O-N=CR j 2. -NR j 2. -NHR j , -NCO or halogen (in these formulas, R j represents substituted or unsubstituted C 1－4 alkyl), more preferably -OR j (i.e., alkoxy). j , which may include: unsubstituted alkyl groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, etc.; substituted alkyl groups such as chloromethyl, etc. Among these, alkyl groups are preferred, unsubstituted alkyl groups are particularly preferred, and methyl or ethyl groups are more preferred. In one embodiment, R j is methyl, in another embodiment, R j It is ethyl.

[0319] In the above formula, R c1 Each occurrence of is independently a hydrogen atom or a monovalent organic group. The monovalent organic group is a monovalent organic group other than the above-mentioned hydrolyzable group.

[0320] In the above R c1 The monovalent organic group is preferably C 1－20 Alkyl, more preferably C 1－6 The alkyl group is more preferably a methyl group.

[0321] The above k1 is independently an integer of 0 to 3 at each occurrence, l1 is independently an integer of 0 to 3 at each occurrence, and m1 is independently an integer of 0 to 3 at each occurrence. The sum of k1, l1 and m1 is (SiR a1 k1 R b1 l1 R c1 m1 ) unit is 3.

[0322] In one embodiment, k1 is a1 k1 R b1 l1 R c1 m1 ) units are each independently an integer of 1 to 3, preferably 2 or 3, and more preferably 3. In a preferred embodiment, k1 is 3.

[0323] In the above formulas (1) and (2), R Si In the case of a group represented by formula (S3), it is preferred that at least two Si atoms to which a hydroxyl group or a hydrolyzable group is bonded exist at the terminal parts of formula (1) and formula (2).

[0324] In a preferred embodiment, the group represented by formula (S3) has -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). 1 , Z 1′ , Z 1″ , R 22 , R 23 , R 22′ , R 23′ , R 22″ and R 23″ Same meaning as above.

[0325] In a preferred embodiment, in formula (S3) there is R 21′ In the case of 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.

[0326] In a preferred embodiment, in formula (S3) there is R 21 In the case of at least one, preferably all, R 21 In the formula (a), p1′ is 0, q1′ is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0327] In a preferred embodiment, in formula (S3) there is R a1 In the case of at least one, preferably all, R a1 In the formula (a), p1 is 0, q1 is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0328] 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.

[0329] R d1 Each time it occurs, it is independently -Z 2 -CR 31 p2 R 32 q2 R 33 r2 .

[0330] Z 2 Each occurrence is independently a single bond, an oxygen atom or a divalent organic group. 2 The right side of the structure is bonded to (CR 31 p2 R 32 q2 R 33 r2 ).

[0331] In a preferred embodiment, Z 2 It is a divalent organic group.

[0332] The above Z 2 Preferably C 1－6 Alkylene, -(CH2) z5 -O-(CH2) 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 -(CH2) z7 -phenylene-(CH2) 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 a straight chain or a branched chain, preferably a straight chain. 1－6 Alkyl, C 2－6 Alkenyl and C 2－6 One or more substituents in the alkynyl group may be substituted, but preferably the alkynyl group is unsubstituted.

[0333] In a preferred embodiment, Z 2 C 1－6 Alkylene or -(CH2) z7 -phenylene-(CH2) z8 -, preferably -phenylene-(CH2) z8 -. In Z 2 In the case of these groups, light resistance, particularly ultraviolet resistance, is further improved.

[0334] In another preferred embodiment, the above Z 2 C 1－3 In one embodiment, Z 2 It can be -CH2CH2CH2-. In another embodiment, Z 2 It can be -CH2CH2-.

[0335] R 31 Each time it occurs, it is independently -Z 2′ -CR 32′ q2′ R 33′ r2′ .

[0336] Z 2′ Each occurrence is independently a single bond, an oxygen atom or a divalent organic group. 2′ The right side of the structure is bonded to (CR 32′ q2′ R 33′ r2′ ).

[0337] The above Z 2′ Preferably C 1－6 Alkylene, -(CH2) z5′ -O-(CH2) 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 -(CH2) z7′ -phenylene-(CH2) 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 a straight chain or a branched chain, preferably a straight chain. 1－6 Alkyl, C 2－6 Alkenyl and C 2－6 One or more substituents in the alkynyl group may be substituted, but preferably the alkynyl group is unsubstituted.

[0338] In a preferred embodiment, Z 2′ C 1－6 Alkylene or -(CH2) z7′ -phenylene-(CH2) z8′ -, preferably -phenylene-(CH2) z8′ -. In Z 2′ In the case of these groups, light resistance, particularly ultraviolet resistance, is further improved.

[0339] In another preferred embodiment, the above Z 2′ C 1－3 In one embodiment, Z 2′ It can be -CH2CH2CH2-. In another embodiment, Z 2′ It can be -CH2CH2-.

[0340] The above R 32′ Each time it occurs, it is independently -Z 3 -SiR 34 n2 R 35 3－n2 .

[0341] The above Z 3 Each occurrence is independently a single bond, an oxygen atom or a divalent organic group. 3 The right side of the structure is bonded to (SiR 34 n2 R 35 3－n2 ).

[0342] In one approach, Z 3 For oxygen atoms.

[0343] In one approach, Z 3 It is a divalent organic group.

[0344] The above Z 3 Preferably C 1－6 Alkylene, -(CH2) z5″ -O-(CH2) 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 -(CH2) z7″ -phenylene-(CH2) 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 a straight chain or a branched chain, preferably a straight chain. 1－6 Alkyl, C 2－6 Alkenyl and C 2－6 One or more substituents in the alkynyl group may be substituted, but preferably the alkynyl group is unsubstituted.

[0345] In a preferred embodiment, Z 3 C 1－6 Alkylene or -(CH2) z7″ -phenylene-(CH2) z8″ -, preferably -phenylene-(CH2) z8″ -. In Z 3 In the case of these groups, light resistance, particularly ultraviolet resistance, is further improved.

[0346] In another preferred embodiment, the above Z 3 C 1－3 In one embodiment, Z 3 It can be -CH2CH2CH2-. In another embodiment, Z 3 It can be -CH2CH2-.

[0347] The above R 34 Each occurrence is independently a hydroxyl group or a hydrolyzable group.

[0348] R 34 Preferably, each occurrence is independently a hydrolyzable group.

[0349] R 34 Preferably, each occurrence is independently -OR j , -OCOR j 、-O-N=CR j 2. -NR j 2. -NHR j , -NCO or halogen (in these formulas, R j represents substituted or unsubstituted C 1－4 alkyl), more preferably -OR j (i.e., alkoxy). j, which may include: unsubstituted alkyl groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, etc.; substituted alkyl groups such as chloromethyl, etc. Among these, alkyl groups are preferred, unsubstituted alkyl groups are particularly preferred, and methyl or ethyl groups are more preferred. In one embodiment, R j is methyl, in another embodiment, R j It is ethyl.

[0350] The above R 35 Each occurrence of is independently a hydrogen atom or a monovalent organic group. The monovalent organic group is a monovalent organic group other than the above-mentioned hydrolyzable group.

[0351] In the above R 35 The monovalent organic group is preferably C 1－20 Alkyl, more preferably C 1－6 The alkyl group is more preferably a methyl group.

[0352] In the above formula, n2 is in each (SiR 34 n2 R 35 3－n2 ) units are independently an integer of 0 to 3. Si In the case of a group represented by formula (S4), at least one (SiR 34 n2 R 35 3－n2 ) unit. That is, at the terminal part, all n2 are not 0 at the same time. In other words, at the terminal part of formula (1) and formula (2), there is at least one Si atom bonded with a hydroxyl group or a hydrolyzable group.

[0353] n2 in each (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.

[0354] The above R 33′ Each occurrence of is independently a hydrogen atom, a hydroxyl group or a monovalent organic group. The monovalent organic group is a monovalent organic group other than the above-mentioned hydrolyzable group.

[0355] In the above R 33′ The monovalent organic group is preferably C 1－20 Alkyl or -(C s H 2s ) t1 -(O-C s H 2s ) t2(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), more preferably C 1－20 Alkyl, more preferably C 1－6 The alkyl group is particularly preferably a methyl group.

[0356] In one approach, R 33′ It is hydroxyl.

[0357] In another embodiment, R 33′ is a monovalent organic group, preferably C 1－20 Alkyl, more preferably C 1－6 alkyl.

[0358] The above q2′ is independently an integer of 0 to 3 at each occurrence, and the above r2′ is independently an integer of 0 to 3 at each occurrence. The sum of q2′ and r2′ is (CR 32′ q2′ R 33′ r2′ ) unit is 3.

[0359] q2′ in each (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.

[0360] R 32 Each time it occurs, it is independently -Z 3 -SiR 34 n2 R 35 3－n2 . The -Z 3 -SiR 34 n2 R 35 3－n2 The meaning is the same as above R 32′ The records in are the same.

[0361] The above R 33 Each occurrence of is independently a hydrogen atom, a hydroxyl group or a monovalent organic group. The monovalent organic group is a monovalent organic group other than the above-mentioned hydrolyzable group.

[0362] In the above R 33 The monovalent organic group is preferably C 1－20 Alkyl or -(C s H 2s ) t1 -(O-C s H2s ) t2 (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), more preferably C 1－20 Alkyl, more preferably C 1－6 The alkyl group is particularly preferably a methyl group.

[0363] In one approach, R 33 It is hydroxyl.

[0364] In another embodiment, R 33 is a monovalent organic group, preferably C 1－20 Alkyl, more preferably C 1－6 alkyl.

[0365] The above p2 is independently an integer of 0 to 3 at each occurrence, q2 is independently an integer of 0 to 3 at each occurrence, and r2 is independently an integer of 0 to 3 at each occurrence. The sum of p2, q2 and r2 is (CR 31 p2 R 32 q2 R 33 r2 ) unit is 3.

[0366] In one embodiment, p2 is zero.

[0367] In one embodiment, p2 is 31 p2 R 32 q2 R 33 r2 ) units are each independently an integer of 1 to 3, an integer of 2 to 3, or 3. In a preferred embodiment, p2 is 3.

[0368] In one embodiment, q2 is 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.

[0369] In one embodiment, p2 is 0 and q2 is 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.

[0370] The above R e1 Each time it occurs, it is independently -Z 3 -SiR 34 n2 R 35 3－n2 . The -Z 3 -SiR 34 n2 R 35 3－n2 The meaning is the same as above R 32′ The records in are the same.

[0371] The above R f1 Each occurrence of is independently a hydrogen atom, a hydroxyl group or a monovalent organic group. The monovalent organic group is a monovalent organic group other than the above-mentioned hydrolyzable group.

[0372] In the above R f1 The monovalent organic group is preferably C 1－20 Alkyl or -(C s H 2s ) t1 -(O-C s H 2s ) t2 (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), more preferably C 1－20 Alkyl, more preferably C 1－6 The alkyl group is particularly preferably a methyl group.

[0373] In one approach, R f1 It is hydroxyl.

[0374] In another embodiment, R f1 is a monovalent organic group, preferably C 1－20 Alkyl, more preferably C 1－6 alkyl.

[0375] The above k2 is independently an integer of 0 to 3 at each occurrence, l2 is independently an integer of 0 to 3 at each occurrence, and m2 is independently an integer of 0 to 3 at each occurrence. The sum of k2, l2 and m2 is (CR d1 k2 R e1 l2 R f1 m2 ) unit is 3.

[0376] In the above formulas (1) and (2), R SiIn the case of a group represented by formula (S4), it is preferred that at least two Si atoms to which a hydroxyl group or a hydrolyzable group is bonded exist at the terminal parts of formula (1) and formula (2).

[0377] In one approach, in R Si In the case of a group represented by formula (S4), n2 is 1 to 3, preferably 2 or 3, more preferably 3 (SiR 34 n2 R 35 3－n2 ) units exist in 2 or more numbers at each terminal portion of formula (1) and formula (2), for example, 2 to 27 numbers, preferably 2 to 9 numbers, more preferably 2 to 6 numbers, further preferably 2 to 3 numbers, and particularly preferably 3 numbers.

[0378] In a preferred embodiment, in formula (S4) there is R 32′ In the case of at least one, preferably all, R 32′ Here, n2 is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0379] In a preferred embodiment, in formula (S4) there is R 32 In the case of at least one, preferably all, R 32 Here, n2 is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0380] In a preferred embodiment, in formula (S4) there is R e1 In the case of at least one, preferably all, R a1 Here, n2 is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0381] 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.

[0382] The above R g1 and R h1 Each time it occurs, it is independently -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 Rf1 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.

[0383] In a preferred embodiment, R g1 and R h1 Independently -Z 4 -SiR 11 n1 R 12 3－n1 .

[0384] The above Z 4 Each occurrence is independently a single bond, an oxygen atom or a divalent organic group. 4 The right side of the structure is bonded to (SiR 11 n1 R 12 3－n1 ).

[0385] In one approach, Z 4 For oxygen atoms.

[0386] In one approach, Z 4 It is a divalent organic group.

[0387] The above Z 4 Preferably C 1－6 Alkylene, -(CH2) z5″ -O-(CH2) 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 -(CH2) z7″ -phenylene-(CH2) 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 a straight chain or a branched chain, preferably a straight chain. 1－6 Alkyl, C 2－6 Alkenyl and C 2－6 One or more substituents in the alkynyl group may be substituted, but preferably the alkynyl group is unsubstituted.

[0388] In a preferred embodiment, Z 4 C1－6 Alkylene or -(CH2) z7″ -phenylene-(CH2) z8″ -, preferably -phenylene-(CH2) z8″ -. In Z 3 In the case of these groups, light resistance, particularly ultraviolet resistance, is further improved.

[0389] In another preferred embodiment, the above Z 4 C 1－3 In one embodiment, Z 4 It can be -CH2CH2CH2-. In another embodiment, Z 4 It can be -CH2CH2-.

[0390] In one approach, R Si It is a group represented by formula (S2), (S3), (S4) or (S5). These compounds can form a surface treatment layer having high surface slip properties.

[0391] In one approach, R Si The group is represented by formula (S1), (S3), (S4) or (S5). Since these compounds have a plurality of hydrolyzable groups at one end, they can strongly adhere to the substrate and form a surface treatment layer with high wear durability.

[0392] In one approach, R Si It is a group represented by formula (S1), (S3) or (S4). Since these compounds have a plurality of hydrolyzable groups at one end, they can strongly adhere to the substrate and form a surface treatment layer with high wear durability.

[0393] In one approach, R Si The group is represented by the formula (S3) or (S4). Since these compounds have a plurality of hydrolyzable groups branching from one Si atom or C atom at one end, they can form a surface treatment layer having higher wear durability.

[0394] In one approach, R Si It is a group represented by formula (S1).

[0395] In one approach, R Si It is a group represented by formula (S2).

[0396] In one approach, R Si It is a group represented by formula (S3).

[0397] In one approach, R Si It is a group represented by formula (S4).

[0398] In one approach, R Si It is a group represented by formula (S5).

[0399] In the above formulas (1) and (2), X A It can be understood that the fluoropolyether part (R F1 and R F2 ) and the site that provides bonding energy with the substrate (R Si ) is connected to the connecting part. Therefore, as long as the compounds represented by formula (1) and (2) can exist stably, the X A It may be a single bond or an arbitrary group.

[0400] 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 can be determined according to X A The sum of α and β is equal to X A For example, in X A When X is a devalent organic group, the sum of α and β is 10, for example, α is 9 and β is 1, α is 5 and β is 5, or α is 1 and β is 9. A In the case of a divalent organic group, α and β are 1.

[0401] In the above formula (2), γ is an integer from 1 to 9. γ can be calculated based on X A That is, γ is X A The value of the valence minus 1.

[0402] X A Each independently represents a single bond or a di- to decavalent organic group.

[0403] In one approach, X A Does not contain siloxane bonds (-Si-O-Si-).

[0404] The above X A The 2- to 10-valent organic group is preferably a 2- to 8-valent organic group. In one embodiment, the 2- to 10-valent organic group is preferably a 2- to 4-valent organic group, and more preferably a 2-valent organic group. In another embodiment, the 2- to 10-valent organic group is preferably a 3- to 8-valent organic group, and more preferably a 3- to 6-valent organic group.

[0405] In one approach, X A is a single bond or a divalent organic group, α is 1, and β is 1.

[0406] In one approach, X A is a single bond or a divalent organic group, and γ is 1.

[0407] In one approach, X A It is a tri- to hexavalent organic group, wherein α is 1 and β is 2-5.

[0408] In one approach, X A It is a tri- to hexavalent organic group, and γ is 2-5.

[0409] In one approach, X A It is a trivalent organic group, α is 1, and β is 2.

[0410] In one approach, X A It is a trivalent organic group, and γ is 2.

[0411] In X A In the case of a single bond or a divalent organic group, Formula (1) and Formula (2) are represented by the following Formula (1') and Formula (2').

[0412] R F1 -X A -R Si (1')

[0413] R Si -X A -R F2 -X A -R Si (2')

[0414] In one approach, X A For a single key.

[0415] In another way, X A It is a divalent organic group.

[0416] In one approach, as X A , for example, a single bond or a divalent organic group represented by the following formula.

[0417] -(R 51 ) p5 -(X 51 ) q5 -

[0418] [Where:

[0419] R 51 Represents a single bond, -(CH2) s5 - or o-phenylene, m-phenylene or p-phenylene, preferably -(CH2) s5 -

[0420] s5 is an integer of 1 to 20, preferably an integer of 1 to 6, more preferably an integer of 1 to 3, further preferably 1 or 2,

[0421] X 51Indicates - (X 52 ) l5 -

[0422] X 52 Each occurrence independently represents a group selected from -O-, -S-, o-phenylene, m-phenylene or p-phenylene, -C(O)O-, -Si(R 53 )2-、-(Si(R 53 )2O) m5 -Si(R 53 )2-,-CONR 54 -、-O-CONR 54 -, -NR 54 - and -(CH2) n5 - group,

[0423] R 53 Each occurrence independently represents phenyl, C 1－6 Alkyl or C 1－6 Alkoxy, preferably phenyl or C 1－6 Alkyl, more preferably methyl,

[0424] R 54 Each occurrence independently represents a hydrogen atom, a phenyl group or a C 1－6 Alkyl (preferably methyl),

[0425] m5 is independently an integer of 1 to 100 at each occurrence, preferably an integer of 1 to 20,

[0426] n5 is independently an integer of 1 to 20 at each occurrence, preferably an integer of 1 to 6, more preferably an integer of 1 to 3,

[0427] l5 is an integer of 1 to 10, preferably an integer of 1 to 5, and more preferably an integer of 1 to 3.

[0428] p5 is 0 or 1,

[0429] q5 is 0 or 1,

[0430] Here, at least one of p5 and q5 is 1, and the order of existence of the repeating units indicated by p5 or q5 and enclosed in parentheses is arbitrary].

[0431] Here, X A (Typically X A The hydrogen atoms) may be selected from fluorine atoms, C 1－3 Alkyl and C 1－3 In a preferred embodiment, X A Not substituted by these groups.

[0432] In a preferred embodiment, the above X A Each independently is -(R 51 ) p5 -(X 51 ) q5 -R 52 -. R 52 Represents a single bond, -(CH2) t5 - or o-phenylene, m-phenylene or p-phenylene, preferably -(CH2) t5 -. t5 is an integer of 1 to 20, preferably an integer of 2 to 6, and more preferably an integer of 2 to 3. Here, R 52 (Typically R 52 The hydrogen atoms) may be selected from fluorine atoms, C 1－3 Alkyl and C 1－3 In a preferred embodiment, R 56 Not substituted by these groups.

[0433] Preferably the above X A Respectively and independently:

[0434] single bond,

[0435] C 1－20 Alkylene,

[0436] -R 51 -X 53 -R 52 -,or

[0437] -X 54 -R 5 -

[0438] [Where R 51 and R 52 The meaning is the same as above.

[0439] X 53 express:

[0440] -O-,

[0441] -S-,

[0442] -C(O)O-,

[0443] -CONR 54 -

[0444] -O-CONR 54 -

[0445] -Si(R 53 )2-、

[0446] -(Si(R 53 )2O)m5 -Si(R 53 )2-、

[0447] -O-(CH2) u5 -(Si(R 53 )2O) m5 -Si(R 53 )2-、

[0448] -O-(CH2) u5 -Si(R 53 )2-O-Si(R 53 )2-CH2CH2-Si(R 53 )2-O-Si(R 53 )2-、

[0449] -O-(CH2) u5 -Si(OCH3)2OSi(OCH3)2-,

[0450] -CONR 54 -(CH2) u5 -(Si(R 53 )2O) m5 -Si(R 53 )2-、

[0451] -CONR 54 -(CH2) u5 -N(R 54 )-,or

[0452] -CONR 54 -(o-phenylene, m-phenylene or p-phenylene)-Si(R 53 )2-

[0453] (Where R 53 , R 54 Same meaning as m5.

[0454] u5 is an integer of 1 to 20, preferably an integer of 2 to 6, and more preferably an integer of 2 to 3), X 54 express:

[0455] -S-,

[0456] -C(O)O-,

[0457] -CONR 54 -

[0458] -O-CONR 54 -

[0459] -CONR 54 -(CH2) u5-(Si(R 54 )2O) m5 -Si(R 54 )2-、

[0460] -CONR 54 -(CH2) u5 -N(R 54 )-,or

[0461] -CONR 54 -(o-phenylene, m-phenylene or p-phenylene)-Si(R 54 )2-

[0462] (In the formula, the meanings of the symbols are the same as above)].

[0463] More preferably, the above X A Respectively and independently:

[0464] single bond,

[0465] C 1－20 Alkylene,

[0466] -(CH2) s5 -X 53 -

[0467] -(CH2) s5 -X 53 -(CH2) t5 -

[0468] -X 54 -,or

[0469] -X 54 -(CH2) t5 -

[0470] [Wherein, X 53 , X 54 , s5 and t5 have the same meanings as above].

[0471] More preferably, the above X A Respectively and independently:

[0472] single bond,

[0473] C 1－20 Alkylene,

[0474] -(CH2) s5 -X 53 -(CH2) t5 -,or

[0475] -X 54 -(CH2) t5 -

[0476] [In the formula, the symbols have the same meaning as above].

[0477] In a preferred embodiment, the above X A Respectively and independently:

[0478] single bond,

[0479] C 1－20 Alkylene,

[0480] -(CH2) s5 -X 53 -,or

[0481] -(CH2) s5 -X 53 -(CH2) t5 -

[0482] [Wherein,

[0483] X 53 -O-, -CONR 54 -, or -O-CONR 54 -

[0484] R 54 Each occurrence independently represents a hydrogen atom, a phenyl group or a C 1－6 Alkyl, s5 is an integer from 1 to 20,

[0485] t5 is an integer from 1 to 20].

[0486] In a preferred embodiment, the above X A Respectively and independently:

[0487] -(CH2) s5 -O-(CH2) t5 -

[0488] -CONR 54 -(CH2) t5 -

[0489] [Wherein,

[0490] R 54 Each occurrence independently represents a hydrogen atom, a phenyl group or a C 1－6 alkyl,

[0491] s5 is an integer from 1 to 20,

[0492] t5 is an integer from 1 to 20].

[0493] In one embodiment, the above X A Respectively and independently:

[0494] single bond,

[0495] C 1－20 Alkylene,

[0496] -(CH2) s5 -O-(CH2) t5 -

[0497] -(CH2) s5 -(Si(R 53 )2O) m5 -Si(R 53 )2-(CH2) t5 -

[0498] -(CH2) s5 -O-(CH2) u5 -(Si(R 53 )2O) m5 -Si(R 53 )2-(CH2) t5 -,or

[0499] -(CH2) s5 -O-(CH2) t5 -Si(R 53 )2-(CH2) u5 -Si(R 53 )2-(C v H 2v )-

[0500] [Where R 53 , m5, s5, t5 and u5 have the same meanings as above, v5 is an integer from 1 to 20, preferably an integer from 2 to 6, and more preferably an integer from 2 to 3].

[0501] In the above formula, -(C v H 2v )- may be a straight chain or a branched chain, for example, it may be -CH2CH2-, -CH2CH2CH2-, -CH(CH3)-, or -CH(CH3)CH2-.

[0502] The above X A can be independently selected from fluorine atoms, C 1－3 Alkyl and C 1－3 Fluorinated alkyl (preferably C 1－3 In one embodiment, X A For non-substitution.

[0503] Among them, the above X A The left side of each formula is bonded to R F1 or R F2 , the right side is bonded to R Si .

[0504] In one approach, X A Can be independently -O-C 1－6 Groups other than alkylene.

[0505] In another way, as X A , for example, the following groups can be cited:

[0506]

[0507]

[0508] [Where R 41 are independently a hydrogen atom, a phenyl group, an alkyl group having 1 to 6 carbon atoms, or a C 1－6 Alkoxy, preferably methyl,

[0509] D is selected from the following groups:

[0510] -CH2O(CH2)2-,

[0511] -CH2O(CH2)3-,

[0512] -CF2O(CH2)3-,

[0513] -(CH2)2-,

[0514] -(CH2)3-,

[0515] -(CH2)4-,

[0516] -CONH-(CH2)3-,

[0517] -CON(CH3)-(CH2)3-,

[0518] -CON(Ph)-(CH2)3- (where Ph represents phenyl), and

[0519]

[0520] (Where R 42 Each independently represents a hydrogen atom, a C 1－6 Alkyl or C 1－6 The alkoxy group preferably represents a methyl group or a methoxy group, and more preferably represents a methyl group.)

[0521] E is -(CH2) n - (n is an integer from 2 to 6),

[0522] D is bonded to the main chain of the molecule F1 or R F2 , E is bonded to R Si . ]

[0523] As the above X A Specific examples include:

[0524] single bond,

[0525] -CH2OCH2-,

[0526] -CH2O(CH2)2-,

[0527] -CH2O(CH2)3-,

[0528] -CH2O(CH2)4-,

[0529] -CH2O(CH2)5-,

[0530] -CH2O(CH2)6-,

[0531] -CH2O(CH2)3Si(CH3)2OSi(CH3)2(CH2)2-,

[0532] -CH2O(CH2)3Si(CH3)2OSi(CH3)2OSi(CH3)2(CH2)2-,

[0533] -CH2O(CH2)3Si(CH3)2O(Si(CH3)2O)2Si(CH3)2(CH2)2-,

[0534] -CH2O(CH2)3Si(CH3)2O(Si(CH3)2O)3Si(CH3)2(CH2)2-,

[0535] -CH2O(CH2)3Si(CH3)2O(Si(CH3)2O) 10 Si(CH3)2(CH2)2-,

[0536] -CH2O(CH2)3Si(CH3)2O(Si(CH3)2O) 20 Si(CH3)2(CH2)2-,

[0537] -CH2OCF2CHFOCF2-,

[0538] -CH2OCF2CHFOCF2CF2-,

[0539] -CH2OCF2CHFOCF2CF2CF2-,

[0540] -CH2OCH2CF2CF2OCF2-,

[0541] -CH2OCH2CF2CF2OCF2CF2-,

[0542] -CH2OCH2CF2CF2OCF2CF2CF2-、

[0543] -CH2OCH2CF2CF2OCF(CF3)CF2OCF2-、

[0544] -CH2OCH2CF2CF2OCF(CF3)CF2OCF2CF2-、

[0545] -CH2OCH2CF2CF2OCF(CF3)CF2OCF2CF2CF2-、

[0546] -CH2OCH2CHFCF2OCF2-、

[0547] -CH2OCH2CHFCF2OCF2CF2-、

[0548] -CH2OCH2CHFCF2OCF2CF2CF2-、

[0549] -CH2OCH2CHFCF2OCF(CF3)CF2OCF2-、

[0550] -CH2OCH2CHFCF2OCF(CF3)CF2OCF2CF2-、

[0551] -CH2OCH2CHFCF2OCF(CF3)CF2OCF2CF2CF2-、

[0552] -CH2OCF2CHFOCF2CF2CF2-C(O)NH-CH2-、

[0553] -CH2OCH2(CH2)7CH2Si(OCH3)2OSi(OCH3)2(CH2)2Si(OCH3)2OSi(OCH3)2(CH2)2-、

[0554] -CH2OCH2CH2CH2Si(OCH3)2OSi(OCH3)2(CH2)3-、

[0555] -CH2OCH2CH2CH2Si(OCH2CH3)2OSi(OCH2CH3)2(CH2)3-、

[0556] -CH2OCH2CH2CH2Si(OCH3)2OSi(OCH3)2(CH2)2-、

[0557] -CH2OCH2CH2CH2Si(OCH2CH3)2OSi(OCH2CH3)2(CH2)2-、

[0558] -(CH2)2-Si(CH3)2-(CH2)2-,

[0559] -CH2-,

[0560] -(CH2)2-,

[0561] -(CH2)3-,

[0562] -(CH2)4-,

[0563] -(CH2)5-,

[0564] -(CH2)6-,

[0565] -CO-,

[0566] -CONH-,

[0567] -CONH-CH2-,

[0568] -CONH-(CH2)2-,

[0569] -CONH-(CH2)3-,

[0570] -CONH-(CH2)4-,

[0571] -CONH-(CH2)5-,

[0572] -CONH-(CH2)6-,

[0573] -CON(CH3)-CH2-,

[0574] -CON(CH3)-(CH2)2-,

[0575] -CON(CH3)-(CH2)3-,

[0576] -CON(CH3)-(CH2)4-,

[0577] -CON(CH3)-(CH2)5-,

[0578] -CON(CH3)-(CH2)6-,

[0579] -CON(Ph)-CH2- (where Ph represents phenyl),

[0580] -CON(Ph)-(CH2)2- (where Ph represents phenyl),

[0581] -CON(Ph)-(CH2)3- (where Ph represents phenyl),

[0582] -CON(Ph)-(CH2)4- (where Ph represents phenyl),

[0583] -CON(Ph)-(CH2)5- (where Ph represents phenyl),

[0584] -CON(Ph)-(CH2)6- (where Ph represents phenyl),

[0585] -CONH-(CH2)2NH(CH2)3-,

[0586] -CONH-(CH2)6NH(CH2)3-,

[0587] -CH2O-CONH-(CH2)3-、

[0588] -CH2O-CONH-(CH2)6-、

[0589] -S-(CH2)3-,

[0590] -(CH2)2S(CH2)3-,

[0591] -CONH-(CH2)3Si(CH3)2OSi(CH3)2(CH2)2-,

[0592] -CONH-(CH2)3Si(CH3)2OSi(CH3)2OSi(CH3)2(CH2)2-,

[0593] -CONH-(CH2)3Si(CH3)2O(Si(CH3)2O)2Si(CH3)2(CH2)2-,

[0594] -CONH-(CH2)3Si(CH3)2O(Si(CH3)2O)3Si(CH3)2(CH2)2-,

[0595] -CONH-(CH2)3Si(CH3)2O(Si(CH3)2O) 10 Si(CH3)2(CH2)2-、

[0596] -CONH-(CH2)3Si(CH3)2O(Si(CH3)2O) 20 Si(CH3)2(CH2)2-、

[0597] -C(O)O-(CH2)3-,

[0598] -C(O)O-(CH2)6-,

[0599] -CH2-O-(CH2)3-Si(CH3)2-(CH2)2-Si(CH3)2-(CH2)2-,

[0600] -CH2-O-(CH2)3-Si(CH3)2-(CH2)2-Si(CH3)2-CH(CH3)-,

[0601] -CH2-O-(CH2)3-Si(CH3)2-(CH2)2-Si(CH3)2-(CH2)3-,

[0602] -CH2-O-(CH2)3-Si(CH3)2-(CH2)2-Si(CH3)2-CH(CH3)-CH2-,

[0603] -OCH2-,

[0604] -O(CH2)3-,

[0605] -OCFHCF2-,

[0606] wait.

[0607] In yet another approach, X A Each independently has the formula: -(R 16 ) x1 -(CFR 17 ) y1 -(CH2) z1 - In the formula, x1, y1 and z1 are each independently an integer of 0 to 10, the sum of x1, y1 and z1 is 1 or more, and the order of existence of each repeating unit enclosed in parentheses is arbitrary in the formula.

[0608] In the above formula, R 16 Each occurrence is independently an oxygen atom, a phenylene group, a carbazolyl group, -NR 18 -(where R 18 represents a hydrogen atom or an organic group) or a divalent organic group. Preferably R 18 It is an oxygen atom or a divalent polar group.

[0609] The "divalent polar group" is not particularly limited, and examples thereof include -C(O)-, -C(=NR 19 )- and -C(O)NR 19 -(In these formulas, 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, and n-propyl, which may be substituted with one or more fluorine atoms.

[0610] In the above formula, R17 Each occurrence is 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, preferably a perfluoroalkyl group having 1 to 3 carbon atoms, more preferably a trifluoromethyl group or a pentafluoroethyl group, and still more preferably a trifluoromethyl group.

[0611] In yet another embodiment, as X A As examples, the following groups can be cited:

[0612]

[0613] R 41 are independently a hydrogen atom, a phenyl group, an alkyl group having 1 to 6 carbon atoms, or a C 1－6 Alkoxy, preferably methyl;

[0614] Each X A In the base, any of the Ts are R F1 or R F2 The following groups are bonded:

[0615] -CH2O(CH2)2-,

[0616] -CH2O(CH2)3-,

[0617] -CF2O(CH2)3-,

[0618] -(CH2)2-,

[0619] -(CH2)3-,

[0620] -(CH2)4-,

[0621] -CONH-(CH2)3-,

[0622] -CON(CH3)-(CH2)3-,

[0623] -CON(Ph)-(CH2)3- (wherein Ph represents phenyl), or

[0624]

[0625] [Where R 42 Each independently represents a hydrogen atom, a C 1－6 Alkyl or C 1－6 The alkoxy group is preferably a methyl group or a methoxy group, and more preferably a methyl group.]

[0626] The other T and R of the main chain of the molecule SiThe remaining T's, when present, are each independently methyl, phenyl, C1-6 alkoxy, or a free radical scavenging group or an ultraviolet absorbing group.

[0627] The radical scavenging group is not particularly limited as long as it is a group that can capture free radicals generated by light irradiation, and examples thereof include residues of benzophenones, benzotriazoles, benzoates, phenyl salicylates, crotonic acids, malonic esters, organic acrylates, hindered amines, hindered phenols, or triazines.

[0628] The ultraviolet absorbing group is not particularly limited as long as it is a group that can absorb ultraviolet rays, 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.

[0629] In a preferred embodiment, preferred free radical scavenging groups or ultraviolet absorbing groups include:

[0630]

[0631] In this method, X A Each independently may be a tri- to decavalent organic group.

[0632] In yet another embodiment, as X A As examples, the following groups can be cited:

[0633]

[0634] [Where R 25 , R 26 and R 27 are each independently a divalent to hexavalent organic group,

[0635] R 25 With at least 1 R F1 Bonding, R 26 and R 27 Each with at least 1 R Si Bonding.]

[0636] In one embodiment, the above R 25 For a single bond, C 1－20 Alkylene, C 3－20 Cycloalkylene, C 5－20 Arylene, -R 57 -X 58 -R 59 -, -X 58 -R 59 -or-R 57 -X 58-. The above R 57 and R 59 are independently a single bond, C 1－20 Alkylene, C 3－20 Cycloalkylene or C 5－20 The above X 58 It is -O-, -S-, -CO-, -O-CO- or -COO-.

[0637] In one embodiment, the above 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, preferably C 1－6 Alkyl, -R 36 -R 37 -R 36 -, -R 36 -CHR 38 2- etc. Here, R 36 Each of R is 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 For -R 45 -R 46 -R 45 -, -R 46 -R 45 -or-R 45 -R 46 -. Here, R 45 Each R is independently an alkyl group having 1 to 6 carbon atoms. 46 is N, O or S, preferably O.

[0638] In this method, X A Each independently may be a tri- to decavalent organic group.

[0639] In one embodiment, the fluorinated polyether group-containing silane compound represented by the formula (1) or (2) does not contain a siloxane bond (—Si—O—Si—).

[0640] The fluorinated polyether silane compound represented by the formula (1) or (2) may have a 2 ~1×10 5 The average molecular weight is not particularly limited. From the viewpoint of wear durability, the average molecular weight is preferably 2,000 to 32,000, and more preferably 2,500 to 12,000. Here, the "average molecular weight" refers to the number average molecular weight, and the "average molecular weight" is calculated by 19 The value measured by F-NMR.

[0641] In one embodiment, in the surface treatment agent of the present invention, the fluorinated polyether group-containing silane compound is a compound represented by formula (1).

[0642] In another embodiment, in the surface treatment agent of the present invention, the fluorinated polyether group-containing silane compound is a compound represented by formula (2).

[0643] In another embodiment, in the surface treatment agent of the present invention, the fluorinated polyether group-containing silane compound is a compound represented by formula (1) or a compound represented by formula (2).

[0644] In the surface treatment agent of the present invention, the compound represented by formula (2) is preferably 0.1 mol% or more and 35 mol% or less relative to the total of the compound represented by formula (1) and the compound represented by formula (2). The lower limit of the content of the compound represented by formula (2) is preferably 0.1 mol%, more preferably 0.2 mol%, further preferably 0.5 mol%, further more preferably 1 mol%, particularly preferably 2 mol%, and particularly preferably 5 mol%. The upper limit of the content of the compound represented by formula (2) is preferably 35 mol%, more preferably 30 mol%, further preferably 20 mol%, further more preferably 15 mol% or 10 mol% relative to the total of the compound represented by formula (1) and the compound represented by formula (2). Relative to the total of the compound represented by formula (1) and the compound represented by formula (2), the compound represented by formula (2) is preferably 0.1 mol% to 30 mol%, more preferably 0.1 mol% to 20 mol%, further preferably 0.2 mol% to 10 mol%, further more preferably 0.5 mol% to 10 mol%, particularly preferably 1 mol% to 10 mol%, for example 2 mol% to 10 mol% or 5 mol% to 10 mol%. By making the compound represented by formula (2) within this range, the wear durability can be further improved.

[0645] The compound represented by the above formula (1) or (2) can be obtained by the method described in the above Patent Document 1, for example.

[0646] The content of the compound represented by the formula (1) or (2) is preferably 0.1 to 50.0% by mass, more preferably 1.0 to 30.0% by mass, further preferably 5.0 to 25.0% by mass, and particularly preferably 10.0 to 20.0% by mass relative to the entire surface treatment agent. By making the content of the fluorinated polyether group-containing silane compound within the above range, higher water and oil repellency can be obtained.

[0647] (Amide compound)

[0648] The amide compound contains an amide group and is a compound capable of improving the wear durability of the surface treatment layer formed by the surface treatment agent of the present invention.

[0649] In a preferred embodiment, the amide compound is an amide compound represented by the following formula (A).

[0650] NR 61 R 62 -COR 63 (A)

[0651] [Where:

[0652] R 61 A hydrogen atom or C 1－10 Alkyl (preferably C 1－6 alkyl);

[0653] R 62 C 1－10 Alkyl (preferably C 1－6 alkyl);

[0654] R 63 For hydrogen atoms, C 1－10 Alkyl (preferably C 1－6 Alkyl), NR 65 2 or -R 66 x -R 67 y -R 68 ;

[0655] or R 62 and R 63 Respectively bond to form -R 62 -R 63 -, the -R 62 -R 63 - for C 3－4 Alkylene or -C 2－3 Alkylene-NR 65 -;

[0656] R 65 are independently a hydrogen atom or a C 1－10 Alkyl (preferably C 1－6 alkyl);

[0657] R 66 Each time it occurs, it is independently C 1－6 Alkylene;

[0658] R 67 is oxygen atom or CO;

[0659] R 68 C 1－10 Alkyl (preferably C 1－6alkyl);

[0660] x is an integer from 1 to 6;

[0661] y is an integer from 1 to 6;

[0662] Here, in -R 66 x -R 67 y -R 68 In, R 66 and R 67 The order in which each exists is arbitrary.]

[0663] In the above formula (A), the above alkyl group may be a straight chain or a branched chain, and is preferably a straight chain.

[0664] In the above formula (A), the above alkylene group may be a straight chain or a branched chain, and is preferably a straight chain.

[0665] The above R 61 A hydrogen atom or C 1－10 alkyl.

[0666] In one embodiment, the above R 61 A hydrogen atom.

[0667] In another embodiment, the above R 61 C 1－10 alkyl.

[0668] C 1－10 The alkyl group is preferably C 1－6 Alkyl, more preferably C 1－3 Alkyl, more preferably C 1－2 alkyl.

[0669] The above R 62 C 1－10 Alkyl, preferably C 1－6 Alkyl, more preferably C 1－3 Alkyl, more preferably C 1－2 alkyl.

[0670] In a preferred embodiment, R 61 and R 62 C 1－2 The alkyl group is preferably a methyl group or an ethyl group, and more preferably a methyl group.

[0671] The above R 63 For hydrogen atoms, C 1－10 Alkyl, NR 65 2. or -R 66 x -R 67 y -R68 , or R 62 and R 63 Respectively bond to form -R 62 -R 63 -, the -R 62 -R 63 - for C 3－4 Alkylene or -C 2－3 Alkylene-NR 65 -

[0672] In one approach, R 63 A hydrogen atom.

[0673] In one approach, R 63 C 1－10 Alkyl, preferably C 1－6 Alkyl, more preferably C 1－4 Alkyl, more preferably C 1－3 The alkyl group is particularly preferably a methyl group or an ethyl group.

[0674] In one approach, R 63 NR 65 2.

[0675] The above R 65 are independently a hydrogen atom or a C 1－10 Alkyl, preferably C 1－10 Alkyl. C 1－10 The alkyl group is preferably C 1－6 Alkyl, more preferably C 1－4 Alkyl, more preferably C 1－3 The alkyl group is particularly preferably a methyl group.

[0676] Above - R 66 x -R 67 y -R 68 In the above R 66 Each time it occurs, it is independently C 1－6 Alkylene (preferably C 1－4 Alkylene, more preferably C 2－3 Alkylene), the above R 67 is an oxygen atom, and the above R 68 C 1－6 Alkyl (preferably C 1－4 alkyl), the above x is an integer of 1 to 6 (preferably an integer of 1 to 3), the above y is an integer of 1 to 6 (preferably an integer of 1 to 3), -R 66 x -R 67 y -R 68 In, R 66 and R67 The order of existence is arbitrary. 66 x -R 67 y -R 68 By R 66 Bonded to the carbon atom of the amide group.

[0677] In one approach, R 63 For -R 66 x -R 67 y -R 68 , preferably -R 66 -R 67 -R 68 In one embodiment, R 63 For -R 66 -O-R 68 In another embodiment, R 63 For -R 66 -CO-R 68 .

[0678] In another embodiment, R 62 and R 63 Respectively bond to form -R 62 -R 63 -, the -R 62 -R 63 - for C 3－4 Alkylene or -C 2－3 Alkylene-NR 65 -. That is, R 62 and R 63 The nitrogen atom and the carbon atom to which they are bonded together form a 5-membered or 6-membered ring. In a preferred embodiment, the 5-membered or 6-membered ring is a pyrrolidone ring or a tetrahydropyrimidone ring which may be N-substituted.

[0679] In a preferred embodiment, R 61 and R 62 C 1－2 Alkyl, R 63 For -R 66 -O-R 68 , R 66 C 2－3 Alkylene, R 68 C 1－4 alkyl.

[0680] In another preferred embodiment, R 61 C 1－2 Alkyl, R 62 and R 63 Respectively bond to form -R 62 -R63 -, the -R 62 -R 63 - is a C3 alkylene group.

[0681] The boiling point of the amide compound under atmospheric pressure is preferably 150 to 300°C, more preferably 180 to 260°C.

[0682] The content of the amide compound is 0.5 to 10.0% by mass relative to the entire surface treatment agent. The surface treatment agent of the present invention can form a surface treatment layer having high wear durability by containing the amide compound in the above content.

[0683] In a preferred embodiment, the content of the amide compound is preferably 1.0 to 9.0% by mass based on the entire surface treatment agent.

[0684] In a preferred embodiment, in the surface treatment agent of the present invention, the mass ratio of the fluorinated polyether group-containing silane compound to the amide compound is preferably 1:100 to 50:1, more preferably 1:50 to 30:1, and even more preferably 1:30 to 20:1.

[0685] In one embodiment, in the surface treatment agent of the present invention, the mass ratio of the fluorinated polyether group-containing silane compound to the amide compound is preferably 1:1 to 50:1, more preferably 2:1 to 40:1, further preferably 2:1 to 10:1, and still more preferably 2:1 to 5:1.

[0686] The surface treatment agent of the present invention can impart water and oil repellency to the surface treatment layer by containing the above-mentioned fluorinated polyether group silane compound, and can impart high wear durability to the surface treatment layer by containing the above-mentioned amide compound. The present invention is not limited by any theory, but it can be considered that this is because the condensation of the fluorinated polyether group silane compound in the surface treatment agent is inhibited by the amide compound. Therefore, the fluorinated polyether group silane compound can more effectively obtain the effect when it has a plurality of Si bonded to the hydrolyzable group.

[0687] The surface treatment agent of the present invention may contain a solvent, a (non-reactive) fluorinated polyether compound which can be understood as a fluorinated oil, preferably a perfluoro (poly) ether compound (hereinafter collectively referred to as "fluorinated oil"), a (non-reactive) organosilicon compound which can be understood as a silicone oil (hereinafter referred to as "silicone oil"), alcohols, solubilizers, catalysts, surfactants, inhibitors, sensitizers, and the like.

[0688] Examples of the solvent include aliphatic hydrocarbons such as hexane, cyclohexane, heptane, octane, nonane, decane, undecane, dodecane, and mineral spirits; aromatic hydrocarbons such as benzene, toluene, xylene, naphthalene, and solvent naphtha; methyl acetate, ethyl acetate, propyl acetate, n-butyl acetate, isopropyl acetate, isobutyl acetate, cellosolve acetate, propylene glycol methyl ether acetate, carbitol acetate, diethyl oxalate, ethyl pyruvate, ethyl 2-hydroxybutyrate; Esters such as esters, ethyl acetoacetate, amyl acetate, methyl lactate, ethyl lactate, methyl 3-methoxypropionate, ethyl 3-methoxypropionate, methyl 2-hydroxyisobutyrate, ethyl 2-hydroxyisobutyrate; ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone, 2-hexanone, cyclohexanone, methyl aminoketone, 2-heptanone; ethyl cellosolve, methyl cellosolve, methyl cellosolve acetate, ethyl cellosolve butyrate, propylene glycol monomethyl ether, propylene glycol monoethyl ether ...acetone, methyl ethyl ketone, methyl Glycol ethers such as glycol monobutyl ether, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monobutyl ether acetate, dipropylene glycol dimethyl ether, ethylene glycol monoalkyl ether; alcohols such as methanol, ethanol, isopropanol, n-butanol, isobutanol, tert-butanol, sec-butanol, 3-pentanol, octanol, 3-methyl-3-methoxybutanol, tert-pentanol; diols such as ethylene glycol and propylene glycol; cyclic ethers such as tetrahydrofuran, tetrahydropyran, dioxane; N,N-dimethyl Amides such as formamide and N,N-dimethylacetamide; ether alcohols such as methyl cellosolve, cellosolve, isopropyl cellosolve, butyl cellosolve, and diethylene glycol monomethyl ether; diethylene glycol monoethyl ether acetate; fluorinated solvents such as 1,1,2-trichloro-1,2,2-trifluoroethane, 1,2-dichloro-1,1,2,2-tetrafluoroethane, dimethyl sulfoxide, 1,1-dichloro-1,2,2,3,3-pentafluoropropane (HCFC225), ZEORORA H, HFE7100, HFE7200, HFE7300, CF3CH2OH, CF3CF2CH2OH, (CF3)2CHOH, etc. Or a mixed solvent of two or more thereof may be mentioned.

[0689] The fluorine-containing oil is not particularly limited, and examples thereof include compounds represented by the following general formula (3) (perfluoro (poly) ether compound).

[0690] R 5 -(OC4F8) a′ -(OC3F6) b′ -(OC2F4) c′ -(OCF2) d′ -Rf 6 ···(3)

[0691] In the formula, Rf 5 represents an alkyl group having 1 to 16 carbon atoms (preferably C 1－16 perfluoroalkyl), Rf6 represents an alkyl group having 1 to 16 carbon atoms (preferably C 1－16 perfluoroalkyl), fluorine atom or hydrogen atom, Rf 5 and Rf 6 More preferably, each independently is C 1－3 Perfluoroalkyl.

[0692] a', b', c' and d' respectively represent the number of four repeating units of perfluoro(poly)ether constituting the main skeleton of the polymer, and are independently integers of 0 to 300, and the sum of a', b', c' and d' is at least 1, preferably 1 to 300, and more preferably 20 to 300. The order of existence of each repeating unit marked with a', b', c' or d' and enclosed in parentheses is arbitrary in the formula. In these repeating units, -(OC4F8)- may be any of -(OCF2CF2CF2CF2)-, -(OCF(CF3)CF2CF2)-, -(OCF2CF(CF3)CF2)-, -(OCF2CF2CF(CF3))-, -(OC(CF3)2CF2)-, -(OCF2C(CF3)2)-, -(OCF(CF3)CF(CF3))-, -(OCF(C2F5)CF2)-, and (OCF2CF(C2F5))-, and is preferably -(OCF2CF2CF2CF2)-. -(OC3F6)- may be any of -(OCF2CF2CF2)-, -(OCF(CF3)CF2)-, and (OCF2CF(CF3))-, and is preferably -(OCF2CF2CF2)-. -(OC2F4)- may be any of -(OCF2CF2)- and (OCF(CF3))-, but is preferably -(OCF2CF2)-.

[0693] Examples of the perfluoro(poly)ether compound represented by the general formula (3) include compounds represented by any one of the following general formulas (3a) and (3b) (the compounds may be one or a mixture of two or more).

[0694] R 5 -(OCF2CF2CF2) b″ -Rf 6 ···(3a)

[0695] R 5 -(OCF2CF2CF2CF2) a″ -(OCF2CF2CF2) b″ -(OCF2CF2) c″ -(OCF2) d″ -Rf 6 ···(3b)

[0696] In these formulas, Rf 5 and Rf 6 As above; in formula (3a), b" is an integer greater than 1 and less than 100; in formula (3b), a" and b" are each independently an integer greater than 0 and less than 30, and c" and d" are each independently an integer greater than 1 and less than 300. The order of existence of each repeating unit marked with subscripts a", b", c", d" and enclosed in parentheses in the formula is arbitrary.

[0697] From another viewpoint, the fluorinated oil may be of the general formula Rf 3 -F(where Rf 3 C 5－16 Furthermore, it may be a chlorotrifluoroethylene oligomer.

[0698] The fluorine-containing oil may have an average molecular weight of 500 to 10000. The molecular weight of the fluorine-containing oil can be measured using GPC.

[0699] The fluorinated oil may contain, 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 of the present invention. In one embodiment, the surface treatment agent of the present invention does not substantially contain fluorinated oil. Substantially containing no fluorinated oil means that it does not contain any fluorinated oil at all, or may contain a very small amount of fluorinated oil.

[0700] In one embodiment, the average molecular weight of the fluorinated oil can be greater than the average molecular weight of the fluorinated polyether silane compound. By designing the average molecular weight in this way, better wear durability and surface sliding properties can be obtained, especially when the surface treatment layer is formed by vacuum deposition.

[0701] In one embodiment, the average molecular weight of the fluorinated oil can be made smaller than the average molecular weight of the fluorinated polyether silane compound. By designing the average molecular weight in this way, the transparency of the surface treatment layer obtained by the compound can be suppressed from decreasing, and a cured product with high wear durability and high surface slip can be formed.

[0702] The fluorine-containing oil contributes to improving the surface slip properties of the layer formed from the surface treatment agent of the present invention.

[0703] As the above-mentioned silicone oil, for example, a straight-chain or cyclic silicone oil having a siloxane bond of 2,000 or less can be used. The straight-chain silicone oil may be a so-called ordinary silicone oil and a modified silicone oil. As ordinary silicone oil, dimethyl silicone oil, methylphenyl silicone oil, and methyl hydrogen silicone oil can be cited. As modified silicone oil, silicone oil formed by modifying ordinary silicone oil using alkyl, aralkyl, polyether, higher fatty acid ester, fluoroalkyl, amino, epoxy, carboxyl, alcohol, etc. can be cited. As cyclic silicone oil, for example, cyclic dimethylsiloxane oil can be cited.

[0704] The surface treatment agent of the present invention contains, for example, 0 to 300 parts by mass, preferably 50 to 200 parts by mass of the silicone oil per 100 parts by mass of the total fluorinated polyether group-containing silane compound of the present invention (the total of two or more fluorinated polyether group-containing silane compounds, the same below).

[0705] Silicone oil helps to improve the surface slip properties of the surface treatment layer.

[0706] 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-butyl alcohol, CF3CH2OH, CF3CF2CH2OH, (CF3)2CHOH. By adding these alcohols to the surface treatment agent, the stability of the surface treatment agent can be improved, and the compatibility of the perfluoropolyether group-containing silane compound with the solvent can also be improved.

[0707] Examples of the compatibilizer include fluorine-substituted alcohols such as 2,2,2-trifluoroethanol, 2,2,3,3,3-pentafluoro-1-propanol and 2,2,3,3,4,4,5,5-octafluoro-1-pentanol, preferably fluorine-substituted alcohols having a terminal CF2H, fluorine-substituted aromatic groups such as 1,3-bis(trifluoromethyl)benzene, preferably fluorine-substituted benzene, and the like.

[0708] Examples of the catalyst include acids (eg, acetic acid, trifluoroacetic acid, etc.), bases (eg, ammonia, triethylamine, diethylamine, etc.), and transition metals (eg, Ti, Ni, Sn, etc.).

[0709] The catalyst can promote the hydrolysis and dehydration condensation of the fluorinated polyether group-containing silane compound of the present invention, and promote the formation of a layer formed by the surface treatment agent of the present invention.

[0710] Examples of other components other than the above components include tetraethoxysilane, methyltrimethoxysilane, 3-aminopropyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, and methyltriacetoxysilane.

[0711] The surface treatment agent of the present invention can be impregnated into a porous material, such as a porous ceramic material, a metal fiber, or a product such as steel wool fixed in a cotton-like state, to form a pellet. The pellet can be used, for example, for vacuum deposition.

[0712] The surface treatment agent of the present invention may contain trace amounts of Pt, Rh, Ru, 1,3-divinyltetramethyldisiloxane, triphenylphosphine, NaCl, KCl, silane condensates, and the like as impurities in addition to the above-mentioned components.

[0713] Hereinafter, the article of the present invention will be described.

[0714] The article of the present invention comprises a substrate and a layer (surface treatment layer) formed on the surface of the substrate using the surface treatment agent of the present invention.

[0715] The substrate that can be used in the present invention can be composed of, for example, glass, resin (natural or synthetic resin, such as general plastic materials), metal, ceramics, semiconductors (silicon, germanium, etc.), fibers (textiles, non-woven fabrics, etc.), fur, leather, wood, ceramics, stone, building parts, etc., sanitary products, and any appropriate materials.

[0716] For example, when the article to be manufactured is an optical component, the material constituting the surface of the substrate can be a material for optical components, such as glass or transparent plastic. In addition, when the article to be manufactured is an optical component, certain layers (or films), such as a hard coating or an anti-reflection layer, can be formed on the surface (outermost layer) of the substrate. The anti-reflection layer can use any of a single-layer anti-reflection layer and a multi-layer anti-reflection layer. Examples of inorganic substances that can be used for the anti-reflection layer include SiO2, SiO, ZrO2, TiO2, TiO, Ti2O3, Ti2O5, Al2O3, Ta2O5, Ta3O5, Nb2O5, HfO2, Si3N4, CeO2, MgO, Y2O3, SnO2, MgF2, WO3, etc. These inorganic substances can be used alone or in combination with two or more of these (for example, in the form of a mixture). In the case of a multi-layer anti-reflection layer, it is preferred that SiO2 and / or SiO be used in the outermost layer. When the object to be manufactured is an optical glass component for a touch screen, a portion of the surface of the substrate (glass) may have a transparent electrode, such as a thin film of indium tin oxide (ITO) or indium zinc oxide. In addition, the substrate may have an insulating layer, an adhesive layer, a protective layer, a decorative frame layer (I-CON), an atomized film layer, a hard coating layer, a polarizing film, a phase difference film, and a liquid crystal display module, etc., depending on its specific style.

[0717] The shape of the above-mentioned substrate is not particularly limited, and can be, for example, plate-like, film, or other forms. In addition, the surface area of ​​the substrate that wants to form the surface treatment layer is at least a portion of the substrate surface, and can be appropriately determined according to the purposes of the article that wants to be manufactured and specific styles, etc.

[0718] In one embodiment, as the substrate, at least part of its surface can be composed of a material that originally has hydroxyl groups. As such materials, glass can be cited, and metals (especially base metals), ceramics, semiconductors, etc. with natural oxide films or thermal oxide films formed on the surface can also be cited. Alternatively, as in the case of resins, etc., although there are insufficient hydroxyl groups, or when there are no hydroxyl groups originally, hydroxyl groups can be introduced or increased on the surface of the substrate by subjecting the substrate to certain pretreatments. As examples of such pretreatments, plasma treatment (such as corona discharge) or ion beam irradiation can be cited. Plasma treatment is also suitable for introducing or increasing hydroxyl groups on the surface of the substrate, and cleaning the surface of the substrate (removing foreign matter, etc.). In addition, as another example of such pretreatment, a method can be cited in which an interface adsorbent having a carbon-carbon unsaturated bond is formed in advance on the surface of the substrate in the form of a monomolecular film by using the LB method (Langmuir-Blodgett method) or chemical adsorption method, and then the unsaturated bonds are disconnected in an atmosphere containing oxygen and nitrogen.

[0719] In another embodiment, such a substrate may be formed of a material having at least a surface portion thereof that contains an organic silicon compound having one or more other reactive groups, for example, a Si—H group, or an alkoxysilane.

[0720] In a preferred embodiment, the substrate is glass. As the glass, sapphire glass, soda-lime glass, alkali aluminosilicate glass, borosilicate glass, alkali-free glass, crystal glass, quartz glass are preferred, and chemically strengthened soda-lime glass, chemically strengthened alkali aluminosilicate glass and chemically bonded borosilicate glass are particularly preferred.

[0721] The article of the present invention can be produced by forming a layer of the surface treatment agent of the present invention on the surface of the substrate and, if necessary, post-treating the layer to form a layer of the surface treatment agent of the present invention.

[0722] The layer formation of the surface treatment agent of the present invention can be carried out by applying the surface treatment agent to the surface of the substrate so as to cover the surface. The covering method is not particularly limited. For example, a wet covering method and a dry covering method can be used.

[0723] As examples of the wet coating method, there can be cited dip coating, spin coating, flow coating, spray coating, roll coating, gravure coating and the like.

[0724] Examples of dry coating methods include evaporation (usually vacuum evaporation), sputtering, CVD, and similar methods. Specific examples of evaporation methods (usually vacuum evaporation) include resistance heating, electron beams, high-frequency heating using microwaves, ion beams, and similar methods. Specific examples of CVD methods include plasma-CVD, optical CVD, thermal CVD, and similar methods.

[0725] Alternatively, the coating may be performed using a normal pressure plasma method.

[0726] In the case of using a wet coating method, the surface treatment agent of the present invention can be diluted with a solvent before being applied to the surface of the substrate. From the perspective of the stability of the composition of the present invention 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., C6F 13 CH2CH3 (e.g. ASAHIKLIN (registered trademark) AC-6000 produced by Asahi Glass Co., Ltd.), 1,1,2,2,3,3,4-heptafluorocyclopentane (e.g. ZEORORA (registered trademark) H produced by Zeon Co., Ltd.); hydrofluoroether (HFE) (e.g. perfluoropropyl methyl ether (C3F7OCH3) (e.g. Novec (trademark) 7000 produced by Sumitomo 3M Co., Ltd.), perfluorobutyl methyl ether (C4F9OCH3) (e.g. Novec (trademark) produced by Sumitomo 3M Co., Ltd.) 7100), perfluorobutyl ethyl ether (C4F9OC2H5) (for example, Novec (trademark) 7200 produced by Sumitomo 3M Co., Ltd.), perfluorohexyl methyl ether (C2F5CF(OCH3)C3F7) (for example, Novec (trademark) 7300 produced by Sumitomo 3M Co., Ltd.), or CF3CH2OCF2CHF2 (for example, ASAHIKLIN (registered trademark) AE-3000 produced by Asahi Glass Co., Ltd.). These solvents can be used alone or in the form of a mixture of two or more. Among them, hydrofluoroethers are preferred, and perfluorobutyl methyl ether (C4F9OCH3) and / or perfluorobutyl ethyl ether (C4F9OC2H5) are particularly preferred.

[0727] When the dry coating method is used, the surface treatment agent of the present invention may be used for the dry coating method directly or may be used for the dry coating method after being diluted with the above-mentioned solvent.

[0728] The layer formation of the surface treatment agent is preferably implemented in a manner that the surface treatment agent of the present invention and the catalyst for hydrolysis and dehydration condensation coexist in the layer. For simplicity, when using the wet covering method, the catalyst can be added to the diluent of the surface treatment agent of the present invention after the surface treatment agent of the present invention is diluted with a solvent and before it is applied to the substrate surface. When using the dry covering method, the surface treatment agent of the present invention to which the catalyst is added can be directly subjected to vapor deposition (usually vacuum deposition), or a granular material in which the surface treatment agent of the present invention to which the catalyst is added is impregnated in a metal porous body such as iron or copper is subjected to vapor deposition (usually vacuum deposition).

[0729] Any appropriate acid or base can be used as the catalyst. As the acid catalyst, for example, acetic acid, formic acid, trifluoroacetic acid, etc. can be used. In addition, as the base catalyst, for example, ammonia, organic amines, etc. can be used.

[0730] The surface treatment layer contained in the article of the present invention has both high wear durability. In addition, the surface treatment layer has high wear durability and, depending on the composition of the surface treatment agent used, can also have water repellency, oil repellency, antifouling (for example, preventing the adhesion of dirt such as fingerprints), water repellency (preventing water from entering electronic components, etc.), surface sliding (or lubricity, such as the ability to wipe off dirt such as fingerprints and excellent touch for fingers), chemical resistance, etc., and is suitable for use as a functional film.

[0731] Therefore, the present invention also relates to an optical material having the above-mentioned surface treatment layer as the outermost layer.

[0732] As optical materials, in addition to the optical materials related to displays etc. exemplified below, various optical materials are preferably listed, for example: cathode ray tubes (CRT, such as computer monitors), liquid crystal displays, plasma displays, organic EL displays, inorganic thin film EL dot matrix displays, rear projection displays, fluorescent display tubes (VFD), field emission displays (FED, Field Emission Display) and the like or protective plates of these displays, or materials having an anti-reflection film treated on their surfaces.

[0733] The article of the present invention may be an optical component, but is not particularly limited. Examples of optical components include the following: lenses of glasses, etc.; front protection plates, anti-reflection plates, polarizing plates, anti-glare plates of displays such as PDP and LCD; touch screens of devices such as mobile phones and portable information terminals; disc surfaces of optical discs such as Blu-ray (registered trademark) discs, DVD discs, CD-R, MO, etc.; optical fibers; display surfaces of clocks, etc.

[0734] Furthermore, the article of the present invention may be a medical device or a medical material.

[0735] The thickness of the layer is not particularly limited. In the case of an optical component, the thickness of the layer is in the range of 1 to 50 nm, 1 to 30 nm, and preferably 1 to 15 nm from the viewpoint of optical performance, wear durability, and antifouling properties.

[0736] The article of the present invention has been described in detail above, but the article and the method for producing the article of the present invention are not limited to the above-described examples.

[0737] Example

[0738] The articles of the present invention are described below in Examples, but the present invention is not limited to the following Examples. In the present Examples, the order of existence of the repeating units constituting the fluoropolyether is arbitrary, and the chemical formula shown below represents the average composition.

[0739] As the fluorinated polyether group-containing silane compound and the amide compound, the following compounds were used.

[0740] Fluorinated polyether silane compounds

[0741] A:CF3O(CF2O)k(CF2CF2O)l(CF2CF2CF2O)m(CF2CF2CF2CF2O)nCF2CONHCH2C(CH2CH2CH2Si(OCH3)3)3

[0742] B:CF3O(CF2O)k(CF2CF2O)l(CF2CF2CF2O)m(CF2CF2CF2CF2O)nCF2CONHCH2CH(CH2CH2CH2Si(OCH3)3)2

[0743] C:CF3O(CF2O)k(CF2CF2O)l(CF2CF2CF2O)m(CF2CF2CF2CF2O)nCF2CONHCH2CH2CH2SiCH3(CH2CH2CH Z Si(OCH3)3)2

[0744] D:CF3O(CF2O)k(CF2CF2O)l(CF2CF2CF2O)m(CF2CF2CF2CF2O)nC(OCH2CH2O)2CH3(CH2CH2CH2Si(OCH3)3)2

[0745] E: F(CF2CF2CF2O)oCF2CF2(CH2CHSi(OCH3)3)H

[0746] In the above formula, k is 36, l is 22, m is 0.6, n is 0.2, and o is 28.

[0747] Amide compounds

[0748] a:Tetramethylurea

[0749] b: N-ethylacetamide

[0750] c: N-methylpropionamide

[0751] d: N,N-dimethylpropionamide

[0752] e: 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone

[0753] f: N,N-dimethylacetoacetamide

[0754] g: 2-pyrrolidone

[0755] h: 1-methyl-2-pyrrolidone

[0756] i: 3-methoxy-N,N-dimethylpropionamide

[0757] j: N,N-dimethylformamide

[0758] k: 3-Butoxy-N,N-dimethylpropionamide

[0759] l: 1-ethyl-2-pyrrolidone

[0760] m: 1-octyl-2-pyrrolidone

[0761] n: N,N-dimethylacetamide

[0762] Solvent

[0763] Novec (registered trademark) 7200 (manufactured by 3M JAPAN Co., Ltd.)

[0764] ·Compatibilizer

[0765] α: 2,2,3,3,3-pentafluoro-1-propanol

[0766] β: 2,2,2-trifluoroethanol

[0767] γ: Dimethyl sulfoxide

[0768] Examples 1 to 28 and Comparative Examples 1 to 7 (vacuum deposition method)

[0769] (Preparation of surface treatment agent)

[0770] To a Nor7200 solution containing 20 mass % of a fluorinated polyether group-containing silane compound shown in Table 1 below, an amide compound and a compatibilizer and the like in the amounts shown in Table 1 below were added to prepare surface treatment agents of Examples 1 to 32 and Comparative Examples 1 to 10.

[0771] (Preparation of surface treatment layer)

[0772] The surface treatment agents (Examples 1 to 28 and Comparative Examples 1 to 7) prepared above were vacuum-deposited on chemically strengthened glass (Gorilla glass manufactured by Corning, thickness 0.7 mm). The vacuum deposition treatment conditions were set at a pressure of 3.0 × 10 －3 Pa, first, a silicon dioxide film was formed on the surface of the chemically strengthened glass, and then 400 mg of a surface treatment agent was vapor-deposited to form a surface treatment layer.

[0773] Examples 29 to 32 and Comparative Examples 8 to 10 (spin coating method)

[0774] (Preparation of surface treatment agent)

[0775] 0.12 mass % of the fluorinated polyether group-containing silane compound shown in Table 2 below and the amide compound and the compatibilizer in the amounts shown in Table 2 below were dissolved in Nor7200 to prepare the surface treatment agents of Examples 29 to 32 and Comparative Examples 8 to 10.

[0776] (Preparation of surface treatment layer)

[0777] 1 g of the surface treatment agent obtained above was dropped onto a chemically strengthened glass (50 mm×50 mm) mounted on a spin coater, and then the spin coater was rotated at 3000 rpm for 30 seconds to form a coating layer of the surface treatment agent. Thereafter, the surface treatment layer was formed on the chemically strengthened glass by heating in a ventilated oven.

[0778] <Evaluation>

[0779] (Rubber friction resistance test)

[0780] The water contact angle was measured using a friction tester (manufactured by Shinto Scientific Co., Ltd.) under the following conditions every 2,500 wipes. The test was continued until 10,000 wipes or the angle fell below 100 degrees, and the final number of wears that maintained 100 degrees was compared. The test environment conditions were 25°C and 40% RH. The results are shown in Tables 1 and 2 below.

[0781] Eraser: Raber Eraser (Minoan)

[0782] Ground contact area:

[0783] Moving distance (one way): 30mm

[0784] Travel speed: 3,600 mm / min

[0785] Load:

[0786] [Table 1]

[0787]

[0788] [Table 2]

[0789]

[0790] (Stability Test)

[0791] The intermolecular reactivity of the silane coupling site of the fluorinated polyether silane compound was evaluated. 9 equivalents of water were added to the solution of Example 6 and Comparative Example 1, and the mixture was stirred. 29 Si-NMR observed the peak changes of the silane coupling site, including the peak (Mn) indicating the non-condensed state, the peak (Dn) indicating the state in which one of the trialkoxy groups was condensed, and the peak (Tn) indicating the state in which two of the trialkoxy groups were condensed. The results are shown in Figure 1 .

[0792] The above results confirmed that in the surface treatment agent of Comparative Example 1, condensation occurred 14 hours after adding water, and further condensation occurred 37 hours later. In the surface treatment agent of Example 6, a large amount of non-condensation components remained even after 36 hours of adding water, confirming that the intermolecular condensation between the fluorinated polyether group-containing silane compounds was suppressed.

[0793] Industrial Applicability

[0794] The article of the present invention can be applied to various uses, and can be used as an optical component of a touch screen, for example.

Claims

1. A surface treatment agent, characterized in that: It is a surface treatment agent containing a fluorinated polyether group-containing silane compound and an amide compound. The amide compound is contained in an amount of 0.5 mass % or more based on the total amount of the surface treatment agent. The mass ratio of the fluorinated polyether group-containing silane compound to the amide compound is 2:1 to 5:1, The fluorinated polyether group-containing silane compound is at least one fluorinated polyether group-containing silane compound represented by the following formula (1) or (2), R F1 α -X A -R Si β (I) R Si γ -X A -R F2 -X A -R Si γ (2) Where: R F1 Rf is independently 1 -R F -O q -; R F2 is -Rf 2 p -R F -O q -; R 1 Each occurrence is independently C which may be substituted with one or more fluorine atoms. 1－16 alkyl; R 2 is C which may be substituted by one or more fluorine atoms 1－6 Alkylene; R F Each occurrence is independently a divalent fluoropolyether group represented by the following formula (f1), (f2), (f3), (f4) or (f5), -(OC3F6)d － (OC2F4) e - (f1) In formula (f1), d is an integer of 1 to 200, e is 0 or 1, <h2 style=";text-align:left;direction:ltr">(OC4F8)<h2 style=";text-align:left;direction:ltr"> c <h2 style=";text-align:left;direction:ltr"> (OC3F6)<h2 style=";text-align:left;direction:ltr"> d <h2 style=";text-align:left;direction:ltr"> (OC2F4)<h2 style=";text-align:left;direction:ltr"> e <h2 style=";text-align:left;direction:ltr"> (OCF2)<h2 style=";text-align:left;direction:ltr"> f <h2 style=";text-align:left;direction:ltr"> -(f2) In formula (f2), c and d are each independently an integer of 0 to 30; e and f are each independently an integer of 1 to 200; The sum of c, d, e and f is an integer from 10 to 200; The order of the repeating units marked with the subscript c, d, e or f and enclosed in parentheses is arbitrary in the formula. -(R 6 -R 7 ) g - (f3) In formula (f3), R 6 OCF2 or OC2F4; R 7 is selected from OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 or a combination of 2 or 3 groups selected from these groups; g is an integer from 2 to 100, -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f - (f4) In formula (f4), e is an integer from 1 to 200, a, b, c, d and f are each independently an integer from 0 to 200, and the order of existence of each repeating unit marked with a, b, c, d, e or f and enclosed in parentheses in the formula is arbitrary, -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f - (f5) In formula (f5), f is an integer from 1 to 200, a, b, c, d and e are each independently an integer from 0 to 200, and the order of existence of each repeating unit marked with a, b, c, d, e or f and enclosed in parentheses is arbitrary in the formula; p is 0 or 1; q is independently 0 or 1 at each occurrence; R Si Each occurrence is independently a group represented by the following formula (S1-a), (S1-b), (S2), (S3), (S4) or (S5), -SiR 11 n1 R 12 3-n1 (S2) Sir a1 k1 R b1 11 R c1 m1 (S3) CR d1 k2 R e1 12 R f1 m2 (S4) -NR g1 R h1 (S5) Where: R 11 is independently a hydroxyl group or a hydrolyzable group at each occurrence; R 12 Each occurrence is independently a hydrogen atom or a monovalent organic group; n1 in each (SiR 11 n1 R 12 3－n1 ) units are independently an integer from 0 to 3; X 11 Each occurrence is independently a single bond or a divalent organic group; R 13 Each occurrence is independently a hydrogen atom or a monovalent organic group; t1 and t2 are each independently an integer greater than 1 at each occurrence; The order of presence of the repeating units marked with t1 and t2 and enclosed in brackets is arbitrary in the formula; t is independently an integer greater than 2 at each occurrence; R a1 Each time it occurs, it is independently -Z 1 -SiR 21 p1 R 22 q1 R 23 r1 ; Z 1 Each occurrence is independently an oxygen atom or a divalent organic group; R 21 Each time it occurs, it is independently -Z 1′ -SiR 21′ p1′ R 22′ q1′ R 23′ r1′ ; R 22 is independently a hydroxyl group or a hydrolyzable group at each occurrence; R 23 Each occurrence is independently a hydrogen atom or a monovalent organic group; p1 is independently an integer from 0 to 3 at each occurrence; q1 is independently an integer from 0 to 3 each time it appears; r1 is independently an integer from 0 to 3 at each occurrence; The sum of p1, q1 and r1 is 3; Z 1′ Each occurrence is independently an oxygen atom or a divalent organic group; R 21′ Each time it occurs, it is independently -Z 1″ -SiR 22″ q1″ R 23″ r1″ ; R 22′ is independently a hydroxyl group or a hydrolyzable group at each occurrence; R 23′ Each occurrence is independently a hydrogen atom or a monovalent organic group; p1′ is independently an integer from 0 to 3 at each occurrence; q1′ is independently an integer from 0 to 3 at each occurrence; r1′ is independently an integer from 0 to 3 at each occurrence; The sum of p1′, q1′ and r1′ is 3; Z 1″ Each occurrence is independently an oxygen atom or a divalent organic group; R 22″ is independently a hydroxyl group or a hydrolyzable group at each occurrence; R 23″ Each occurrence is independently a hydrogen atom or a monovalent organic group; q1″ is independently an integer from 0 to 3 at each occurrence; r1″ is independently an integer from 0 to 3 at each occurrence; The sum of q1″ and r1″ is 3; R b1 is independently a hydroxyl group or a hydrolyzable group at each occurrence; R c1 Each occurrence is independently a hydrogen atom or a monovalent organic group; k1 is independently an integer from 0 to 3 at each occurrence; l1 is independently an integer from 0 to 3 each time it appears; m1 is independently an integer from 0 to 3 at each occurrence; The sum of k1, l1 and m1 is 3; R d1 Each time it occurs, it is independently -Z 2 -CR 31 p2 R 32 q2 R 33 r2 ; Z 2 Each occurrence is independently a single bond, an oxygen atom or a divalent organic group; R 31 Each time it occurs, it is independently -Z 2′ -CR 32′ q2′ R 33′ r2′ ; R 32 Each time it occurs, it is independently -Z 3 -SiR 34 n2 R 35 3－n2 ; R 33 Each occurrence is independently a hydrogen atom, a hydroxyl group or a monovalent organic group; each occurrence of p2 is independently an integer of 0 to 3; q2 is independently an integer from 0 to 3 at each occurrence; r2 is independently an integer from 0 to 3 at each occurrence; The sum of p2, q2 and r2 is 3; Z 2′ Each occurrence is independently a single bond, an oxygen atom or a divalent organic group; R 32′ Each time it occurs, it is independently -Z 3 -SiR 34 n2 R 35 3－n2 ; R 33′ Each occurrence is independently a hydrogen atom, a hydroxyl group or a monovalent organic group; each occurrence of q2′ is independently an integer of 0 to 3; r2′ is independently an integer from 0 to 3 at each occurrence; The sum of q2′ and r2′ is 3; Z 3 Each occurrence is independently a single bond, an oxygen atom or a divalent organic group; R 34 is independently a hydroxyl group or a hydrolyzable group at each occurrence; R 35 Each occurrence is independently a hydrogen atom or a monovalent organic group; n2 is independently an integer from 0 to 3 at each occurrence; R e1 Each time it occurs, it is independently -Z 3 -SiR 34 n2 R 35 3－n2 ; R f1 Each occurrence is independently a hydrogen atom, a hydroxyl group or a monovalent organic group; k2 is independently an integer of 0 to 3 each occurrence; l2 is independently an integer from 0 to 3 at each occurrence; m2 is independently an integer from 0 to 3 at each occurrence; The sum of k2, l2 and m2 is 3; R g1 and R h1 Each time it occurs, it is independently -Z 4 -SiR 11 n1 R 12 3－n1 , -Z 4 -SiR a1 k1 R b1 l1 R c1 m1 or -Z 4 -CR d1 k2 R e1 l2 R f1 m2 ; Z 4 Each occurrence is independently a single bond, an oxygen atom or a divalent organic group; Among them, in formulas (S1), (S2), (S3), (S4) and (S5), there is at least one Si atom bonded with a hydroxyl group or a hydrolyzable group; X A Each is independently a single bond or a 2- to 10-valent organic group; α is an integer from 1 to 9; β is an integer from 1 to 9; γ is an integer of 1 to 9 independently. The amide compound is an amide compound represented by the following formula (A): NR 61 R 62 -COR 63 (A) Where: R 61 A hydrogen atom or C 1－10 alkyl; R 62 C 1－10 alkyl; R 63 For hydrogen atoms, C 1－10 Alkyl, NR 65 2 or -R 66 x -R 67 y -R 68 ; or R 62 and R 63 Respectively bond to form -R 62 -R 63 -, the -R 62 -R 63 - for C 3－4 Alkylene or -C 2－3 Alkylene-NR 65 -; R 65 are independently a hydrogen atom or a C 1－10 alkyl; R 66 Each time it occurs, it is independently C 1－6 Alkylene; R 67 is oxygen atom or CO; R 68 C 1－10 alkyl; x is an integer from 1 to 6; y is an integer from 1 to 6; Here, -R 66 x -R 67 y -R 68 In, R 66 and R 67 The order in which each exists is arbitrary.

2. The surface treatment agent according to claim 1, characterized in that: R 1 Each time it occurs, it is independently C 1－16 Perfluoroalkyl, R 2 Each time it occurs, it is independently C 1－6 Perfluoroalkylene.

3. The surface treatment agent according to claim 1 or 2, characterized in that: α, β and γ are 1.

4. The surface treatment agent according to claim 1 or 2, characterized in that: The R Si is a group represented by the following formula (S1-b), In the formula, R 11 , R 12 , R 13 , X 11 , n1 and t have the same meanings as above.

5. The surface treatment agent according to claim 1 or 2, characterized in that: The content of the amide compound is 0.5 to 10.0% by mass based on the entire surface treatment agent.

6. The surface treatment agent according to claim 1 or 2, characterized in that: The amide compound has a boiling point of 150 to 300° C. under atmospheric pressure.

7. The surface treatment agent according to claim 1, characterized in that: R 63 For -R 66 x -R 67 y -R 68 .

8. The surface treatment agent according to claim 1, characterized in that: R 63 For -R 66 -R 67 -R 68 .

9. The surface treatment agent according to claim 1, characterized in that: R 62 and R 63 Respectively bond to form -R 62 -R 63 -, the -R 62 -R 63 - for C 3－4 Alkylene.

10. The surface treatment agent according to claim 1 or 2, characterized in that: It further contains one or more other components selected from the group consisting of fluorinated oil, silicone oil and a catalyst.

11. The surface treatment agent according to claim 1 or 2, characterized in that: Also contains solvent.

12. The surface treatment agent according to claim 1 or 2, characterized in that: The surface treatment agent is used as an antifouling coating agent or a water-repellent coating agent.

13. A pellet, characterized in that: Contains the surface treatment agent according to any one of claims 1 to 12.

14. An article, characterized in that: The present invention comprises a substrate and a layer formed on the substrate using the surface treatment agent according to any one of claims 1 to 12.

15. The article according to claim 14, characterized in that: The substrate is a glass substrate.

16. The article of claim 14, wherein: This item is an optical component.

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