TW202400728A - Surface treatment agent - Google Patents

Abstract

The disclosure provides a surface treatment agent containing: a component (A): a silane compound containing a fluorine-containing polyether group, and a component (B): an alkylamide compound containing a fluorine-containing polyether group.

Description

surface treatment agent

This disclosure relates to surface treatment agents.

It is known that if a certain silane compound containing a fluoropolyether group is used for surface treatment of a substrate, it can provide excellent water repellency, oil repellency, antifouling properties, etc. A layer obtained from a surface treatment agent containing a silane compound containing a fluoropolyether group (hereinafter also referred to as a "surface treatment layer") is applied as a so-called functional film to glass, plastics, fibers, sanitary products, etc. Various base materials such as building materials.

[Prior technical literature]

[Patent Document]

[Patent Document 1] Japanese Patent Application Publication No. 2014-218639

The silane compound containing a fluoropolyether group described in Patent Document 1 can provide a surface treatment layer with excellent functions, but there is still a demand for a surface treatment layer with higher friction durability.

The purpose of this disclosure is to provide an article having a surface treatment layer with higher friction durability.

This disclosure includes the following aspects.

[1] A surface treatment agent containing: component (A), which is a silane compound containing a fluoropolyether group; and component (B), which is a fluoropolymer represented by the following formula (B1) or (B2) Ether-based alkylamide compounds,

R ^FB1 -X ^B -CONR ^B1 R ^B2 (B1)

R ^B2 R ^B1 NOC-X ^B -R ^FB2 -X ^B -CONR ^B1 R ^B2 (B2)

In the formula,

R ^FB1 is Rf ¹ -R ^F -O _q -,

R ^FB2 is -Rf ² _p -R ^F -O _q -,

R ^F are independently divalent fluoropolyether groups,

Rf ¹ is a C _1-16 alkyl group which may be substituted by more than 1 fluorine atom,

Rf ² is a C _1-6 alkylene group which may be substituted by more than 1 fluorine atom,

p is 0 or 1,

q is independently 0 or 1,

X ^B is independently a single bond or a divalent base,

R ^B1 are each independently C _1-6 alkyl,

R ^B2 are each independently a C _1-6 alkyl group or a hydrogen atom.

[2] The surface treatment agent according to the above [1], wherein R ^B2 are each independently a C _1-6 alkyl group.

[3] The surface treatment agent according to the above [1] or [2], wherein X ^B is each independently a single bond or -(R ⁶⁷ ) _b1 -(R ⁶⁸ ) _b2 -,

In the formula,

R ⁶⁷ are each independently C _1-6 alkylene group,

R ⁶⁸ is independently an oxygen atom, a sulfur atom, CO, NR ⁶⁹ , CONR ⁶⁹ , NR ⁶⁹ CO or C _6-12 aryl group,

R ⁶⁹ are each independently a hydrogen atom or a C _1-6 alkyl group,

b1 is an integer from 0 to 6,

b2 is an integer from 0 to 6,

The total of b1 and b2 is 1 or more,

The order of existence of each repeating unit marked b1 or b2 and enclosed in parentheses is arbitrary in the formula.

[4] The surface treatment agent according to any one of the above [1] to [3], wherein X ^B is each independently a single bond, a C _1-6 alkylene group, or -R ⁶⁴ -OR ⁶⁵ -,

R ⁶⁴ is a single bond or C _1-6 alkylene group,

R ⁶⁵ is a single bond or C _1-6 alkylene group.

[5] The surface treatment agent according to any one of the above [1] to [4], wherein R ^F are each independently a group represented by the following formula,

-(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ R ^Fa ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f -

In the formula,

R ^Fa are each independently a hydrogen atom, a fluorine atom or a chlorine atom,

a, b, c, d, e and f are each independently an integer from 0 to 200. The sum of a, b, c, d, e and f is more than 1. Mark a, b, c, d, e or f The order of existence of each repeating unit enclosed in parentheses is arbitrary in the formula; however, when all R ^Fa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more .

[6] The surface treatment agent according to any one of the above [1] to [5], wherein,

Rf ¹ is C _1-16 perfluoroalkyl,

Rf ² is C _1-6 perfluoroalkyl group,

R ^F are independently the bases represented by the following formulas,

-(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f -

In the formula,

a, b, c, d, e and f are each independently an integer from 0 to 200. The sum of a, b, c, d, e and f is more than 1. Mark a, b, c, d, e or f The order of existence of each repeating unit enclosed in parentheses is arbitrary in the formula; however, when all R ^Fa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more .

[7] The surface treatment agent according to any one of the above [1] to [6], wherein R ^F is each independently the following formula (f1), (f2), (f3), (f4), The basis represented by (f5) or (f6),

-(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e - (f1)

In the formula, d is an integer from 1 to 200, and e is 0 or 1;

-(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f2)

In the formula, c and d are independently integers from 0 to 30,

e and f are independently integers from 1 to 200,

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

The order of existence of each repeating unit marked c, d, e or f and enclosed in parentheses is arbitrary in the formula;

-(R ⁶ -R ⁷ ) _g - (f3)

In the formula, R ⁶ is OCF ₂ or OC ₂ F ₄ ,

R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or a combination of 2 or 3 groups selected from these groups,

g is an integer from 2 to 100;

-(R ⁶ -R ⁷ ) _g -R ^r -(R ^7' -R ^6' ) _g' - (f4)

In the formula, R ⁶ is OCF ₂ or OC ₂ F ₄ ,

R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or 2 or 3 groups independently selected from these groups. combination,

R ^6' is OCF ₂ or OC ₂ F ₄ ,

R ^7' is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or 2 or 3 groups independently selected from these groups. combination,

g is an integer from 2 to 100,

g' is an integer from 2 to 100,

R ^r is the following formula,

In the formula, * represents the bonding position;

-(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f5)

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. Mark a, b, c, d, e or f and enclose it in brackets. The order of existence of each repeating unit in the formula is arbitrary;

-(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f6)

In the formula, f is an integer from 1 to 200, a, b, c, d and e are each independently an integer from 0 to 200. Label a, b, c, d, e or f and enclose it in brackets. The order of existence of each repeating unit in the formula is arbitrary.

[8] The surface treatment agent according to any one of the above [1] to [7], wherein the silane compound containing a fluoropolyether group is a compound represented by the following formula (A1) or (A2),

R ^FA1 _α1 -X ^A -R ^Si _β1 (A1)

R ^Si _γ1 -X ^A -R ^FA2 -X ^A -R ^Si _γ1 (A2)

In the formula,

R ^FA1 are independently Rf ¹ -R ^F -O _q -,

R ^FA2 is -Rf ² _p -R ^F -O _q -,

R ^F are independently divalent fluoropolyether groups,

Rf ¹ is a C _1-16 alkyl group which may be substituted by more than 1 fluorine atom,

Rf ² is a C _1-6 alkylene group which may be substituted by more than 1 fluorine atom,

p is 0 or 1,

q is independently 0 or 1,

R ^Si is each independently a monovalent group containing a Si atom bonded to a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent group,

At least one R ^Si is a univalent group containing a Si atom bonded to a hydroxyl group or a hydrolyzable group,

X ^A are each independently a single bond or a valence base of 2 to 10,

α1 is an integer from 1 to 9,

β1 is an integer from 1 to 9,

γ1 is each independently an integer from 1 to 9.

[9] The surface treatment agent according to the above [8], wherein in the formulas (A1) and (A2), R ^F is each independently a group represented by the following formula,

-(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ R ^Fa ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f -

In the formula,

R ^Fa are each independently a hydrogen atom, a fluorine atom or a chlorine atom,

a, b, c, d, e and f are each independently an integer from 0 to 200. The sum of a, b, c, d, e and f is more than 1. Mark a, b, c, d, e or f The order of existence of each repeating unit enclosed in parentheses is arbitrary in the formula; however, when all R ^Fa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more .

[10] The surface treatment agent as described in [8] or [9] above, wherein in formulas (A1) and (A2),

Rf ¹ is C _1-16 perfluoroalkyl,

Rf ² is C _1-6 perfluoroalkylene group,

R ^F are independently the bases represented by the following formulas,

-(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f -

In the formula,

a, b, c, d, e and f are each independently an integer from 0 to 200. The sum of a, b, c, d, e and f is more than 1. Mark a, b, c, d, e or f The order of existence of each repeating unit enclosed in parentheses is arbitrary in the formula; however, when all R ^Fa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more .

[11] The surface treatment agent according to any one of the above [8] to [10], wherein in the formulas (A1) and (A2), R ^F is each independently the following formula (f1), ( The basis represented by f2), (f3), (f4), (f5) or (f6),

-(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e - (f1)

In the formula, d is an integer from 1 to 200, and e is 0 or 1;

-(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f2)

In the formula, c and d are independently integers from 0 to 30,

e and f are independently integers from 1 to 200,

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

The order of existence of each repeating unit marked c, d, e or f and enclosed in parentheses is arbitrary in the formula;

-(R ⁶ -R ⁷ ) _g - (f3)

In the formula, R ⁶ is OCF ₂ or OC ₂ F ₄ ,

R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or a combination of 2 or 3 groups selected from these groups,

g is an integer from 2 to 100;

-(R ⁶ -R ⁷ ) _g -R ^r -(R ^7' -R ^6' ) _g' - (f4)

In the formula, R ⁶ is OCF ₂ or OC ₂ F ₄ ,

R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or 2 or 3 groups independently selected from these groups. combination,

R ^6' is OCF ₂ or OC ₂ F ₄ ,

R ^7' is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or 2 or 3 groups independently selected from these groups. combination,

g is an integer from 2 to 100,

g' is an integer from 2 to 100,

R ^r is the following formula,

In the formula, * represents the bonding position;

-(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f5)

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. Label a, b, c, d, e or f and enclose it in brackets. The order of existence of each repeating unit in the formula is arbitrary;

-(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f6)

In the formula, f is an integer from 1 to 200, a, b, c, d and e are each independently an integer from 0 to 200. Label a, b, c, d, e or f and enclose it in brackets. The order of existence of each repeating unit in the formula is arbitrary.

[12] The surface treatment agent according to any one of the above [8] to [11], wherein R ^Si is the following formula (S1), (S2), (S3), (S4) or (S5) The basis represented,

-SiR ¹¹ _n1 R ¹² _3-n1 (S2)

-SiR ^a1 _k1 R ^b1 _l1 R ^c1 _m1 (S3)

-CR ^d1 _k2 R ^e1 _l2 R ^f1 _m2 (S4)

-NR ^g1 R ^h1 (S5)

In the formula,

R ¹¹ are each independently a hydroxyl group or a hydrolyzable group,

R ¹² is each independently a hydrogen atom or a monovalent organic group,

n1 is an integer from 0 to 3 independently in each (SiR ¹¹ _n1 R ¹² _3-n1 ) unit,

X ¹¹ is independently a single bond or a divalent base,

R ¹³ is each independently a hydrogen atom or a monovalent organic group,

t is independently an integer above 2,

R ¹⁴ is independently a hydrogen atom, a halogen atom or -X ¹¹ -SiR ¹¹ _n1 R ¹² _3-n1 ,

R ¹⁵ is each independently a single bond, an oxygen atom, an alkylene group having 1 to 6 carbon atoms, or an alkyleneoxy group having 1 to 6 carbon atoms,

R ^a1 are independently -Z ¹ -SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ;

Z ¹ are independently 2-valent bases,

R ²¹ are independently -Z ^1' -SiR ^21' _p1' R ^22' _q1' R ^23' _r1' ;

R ²² are each independently a hydroxyl group or a hydrolyzable group,

R ²³ is each independently a hydrogen atom or a monovalent organic group,

p1 are independently integers from 0 to 3,

q1 are independently integers from 0 to 3,

r1 are independently integers from 0 to 3,

The total of p1, q1 and r1 in the unit (SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ) is 3,

Z ^1' are independently 2-valent bases,

R ^21' are independently -Z ^1" -SiR ^22" _q1" R ^23" _r1" ;

R ^22' are each independently a hydroxyl group or a hydrolyzable group,

R ^23' are each independently a hydrogen atom or a monovalent organic group,

p1' are independently integers from 0 to 3,

q1' are independently integers from 0 to 3,

r1' are independently integers from 0 to 3,

The total of p1', q1' and r1' in the (SiR ^21' _p1' R ^22' _q1' R ^23' _r1' ) unit is 3,

Z ^1" are independently 2-valent bases,

R ^22" are each independently a hydroxyl group or a hydrolyzable group,

R ^23" are each independently a hydrogen atom or a monovalent organic group,

q1" are independently integers from 0 to 3,

r1" are independently integers from 0 to 3,

The total of q1" and r1" in the (SiR ^22" _q1" R ^23" _r1" ) unit is 3,

R ^b1 are each independently a hydroxyl group or a hydrolyzable group,

R ^c1 are each independently a hydrogen atom or a monovalent organic group,

k1 are independently integers from 0 to 3,

l1 are independently integers from 0 to 3,

m1 are independently integers from 0 to 3,

The total of k1, l1 and m1 in the (SiR ^a1 _k1 R ^b1 _l1 R ^c1 _m1 ) unit is 3,

R ^d1 are independently -Z ² -CR ³¹ _p2 R ³² _q2 R ³³ _r2 ;

Z ² are independently single bond and divalent base;

R ³¹ are independently -Z ^2' -CR ^32' _q2' R ^33' _r2' ;

R ³² are each independently -Z ³ -SiR ³⁴ _n2 R ³⁵ _3-n2 ,

R ³³ is independently a hydrogen atom, a hydroxyl group or a monovalent organic group,

p2 are independently integers from 0 to 3,

q2 are independently integers from 0 to 3,

r2 are independently integers from 0 to 3,

The total of p2, q2 and r2 in the unit (CR ³¹ _p2 R ³² _q2 R ³³ _r2 ) is 3,

Z ^2' is independently a single bond or a divalent base;

R ^32' are each independently -Z ³ -SiR ³⁴ _n2 R ³⁵ _3-n2 ,

R ^33' are each independently a hydrogen atom, a hydroxyl group or a monovalent organic group,

q2' are independently integers from 0 to 3,

r2' are independently integers from 0 to 3,

The total of q2' and r2' in the (CR ^32' _q2' R ^33' _r2' ) unit is 3,

Z ³ is independently a single bond or a divalent base;

R ³⁴ are each independently a hydroxyl group or a hydrolyzable group,

R ³⁵ is each independently a hydrogen atom or a monovalent organic group,

n2 are independently integers from 0 to 3,

R ^e1 are each independently -Z ³ -SiR ³⁴ _n2 R ³⁵ _3-n2 ,

R ^f1 are each independently a hydrogen atom, a hydroxyl group or a monovalent organic group,

k2 are independently integers from 0 to 3,

l2 are independently integers from 0 to 3,

m2 are independently integers from 0 to 3,

The total of k2, l2 and m2 in the (CR ^d1 _k2 R ^e1 _l2 R ^f1 _m2 ) unit is 3,

R ^g1 and R ^h1 are independently -Z ⁴ -SiR ¹¹ _n1 R ¹² _3-n1 , -Z ⁴ -SiR ⁴¹ _k1 R ^b1 _l1 R ^c1 _m1 or -Z ⁴ -CR ^d1 _k2 R ^e1 _l2 R ^f1 _m2 ,

Z ⁴ is independently a single bond or a divalent base,

However, in formulas (S1), (S2), (S3), (S4) and (S5), there is at least one Si atom bonded to a hydroxyl group or a hydrolyzable group.

[13] The surface treatment agent according to any one of the above [8] to [12], wherein α1, β1 and γ1 are 1, and X ^A is a single bond or a divalent group.

[14] The surface treatment agent according to any one of the above [8] to [13], wherein X ^A is a single bond or a divalent group represented by the following formula,

-(R ⁵¹ ) _p5 -(X ⁵¹ ) _q5 -

In the formula,

R ⁵¹ is a single bond, -(CH ₂ ) _s5 -, or o-phenylene, m-phenylene or p-phenylene,

s5 is an integer from 1 to 20,

X ⁵¹ is -(X ⁵² ) _l5 -,

X ⁵² is independently selected from -O-, -S-, o-phenylene, m-phenylene or p-phenylene, -C(O)O-, -Si(R ⁵³ ) ₂ -, -( Si(R ⁵³ ) ₂ O) _m5 -Si(R ⁵³ ) ₂ -, -CONR ⁵⁴ -, -O-CONR ⁵⁴ -, -NR ⁵⁴ - and -(CH ₂ ) _n5 -. ,

R ⁵³ is independently phenyl, C _1-6 alkyl or C _1-6 alkoxy,

R ⁵⁴ is independently a hydrogen atom, a phenyl group or a C _1-6 alkyl group,

m5 are independently integers from 1 to 100,

n5 are independently integers from 1 to 20,

l5 is an integer from 1 to 10,

p5 is 0 or 1,

q5 is 0 or 1,

Here, at least one of p5 and q5 is 1, and the order in which the repeating units enclosed in parentheses marked with p5 or q5 is arbitrary,

Its right side is bonded to R ^Si .

[15] The surface treatment agent according to any one of the above [8] to [14], wherein X ^A is a group represented by the following formula,

In the formula, X ^a is a single bond or a divalent base.

[16] The surface treatment agent according to any one of the above [1] to [15], wherein the content of the component (B) is 1 to 70 based on the total of the component (A) and the component (B). Mass %.

[17] The surface treatment agent according to any one of the above [1] to [16], wherein the content of the component (B) is 1 to 50 mass based on the total of the component (A) and the component (B). %.

[18] The surface treatment agent as described in any one of the above [1] to [17], which further contains: one or more other ingredients selected from the group consisting of fluorine-containing oil, polysilicone oil, alcohol and catalyst .

[19] The surface treatment agent according to any one of the above [1] to [18], which further contains a solvent.

[20] The surface treatment agent according to any one of the above [1] to [19], which is used as an antifouling coating agent or a waterproof coating agent.

[21] Particles containing the surface treatment agent described in any one of [1] to [20] above.

[22] An article comprising: a base material; and a layer formed on the base material from the surface treatment agent described in any one of [1] to [20] above.

[23] The article according to the above [22], wherein the base material is a glass base material.

[24] The article described in [22] above, which is an optical member.

According to the present disclosure, it is possible to provide a surface treatment agent capable of imparting a surface treatment layer with higher friction durability.

When used in this specification, the "monovalent organic group" means a monovalent group containing carbon. The monovalent organic group is not particularly limited and may be a hydrocarbon group or a derivative thereof. The derivative of a hydrocarbon group means a group having one or more N, O, S, Si, amide, sulfonyl group, siloxane, carbonyl group, carbonyloxy group, etc. at the end of the hydrocarbon group or in the molecular chain. When simply expressed as "organic group", it means a monovalent organic group. In addition, the "bivalent organic group" means a divalent group containing carbon. Examples of the divalent organic group include a divalent group obtained by detaching one more hydrogen atom from the organic group. The same applies to an organic group having a valence of trivalent or higher, and means a group obtained by detaching a predetermined number of hydrogen atoms from the organic group.

When used in this specification, "hydrocarbon group" means a group containing carbon and hydrogen, and is a group obtained by removing a hydrogen atom from a hydrocarbon. The hydrocarbon group is not particularly limited, and examples thereof include C _1-20 hydrocarbon groups, such as aliphatic hydrocarbon groups, aromatic hydrocarbon groups, and the like. The above-mentioned "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. The hydrocarbyl group may be substituted by more than one substituent.

When used in this specification, the substituent of the "hydrocarbyl group" is not particularly limited, and may include, for example, one or more groups selected from the following: halogen atom; which may be substituted by one or more 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 heterosilyl group, 5 to 10-membered heterosilyl group 10-membered unsaturated heterosilyl group, C _6-10 aryl group and 5 to 10-membered heteroaryl group.

The so-called "hydrolyzable group" used in this specification means a group that can undergo a hydrolysis reaction, that is, a group that can be separated from the main skeleton of the compound through a hydrolysis reaction. Examples of hydrolyzable groups include: -OR ^h1 , -OCOR ^h1 , -ON=CR ^h1 ₂ , -NR ^h1 ₂ , -NHR ^h1 , -NCO, halogen (in this equation, R ^h1 represents substituted or unsubstituted Substituted alkyl group having 1 to 4 carbon atoms), etc., preferably -OR ^h1 (that is, alkoxy group). Examples of R ^h1 include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl and isobutyl; substituted alkyl groups such as chloromethyl. Among them, an alkyl group is preferred, especially an unsubstituted alkyl group, and a methyl or ethyl group is particularly preferred.

(surface treatment agent)

The surface treatment agent of the present disclosure contains: component (A), which is a silane compound containing a fluoropolyether group; and component (B), which is a silane compound containing a fluoropolyether group represented by the following formula (B1) or (B2) Alkylamide compounds,

R ^FB1 -X ^B -CONR ^B1 R ^B2 (B1)

R ^B2 R ^B1 NOC-X ^B -R ^FB2 -X ^B -CONR ^B1 R ^B2 (B2)

In the formula,

R ^FB1 is Rf ¹ -R ^F -O _q -,

R ^FB2 is -Rf ² _p -R ^F -O _q -,

R ^F are independently divalent fluoropolyether groups,

Rf ¹ can be a C _1-16 alkyl group substituted by more than 1 fluorine atom,

Rf ² can be a C _1-6 alkylene group substituted by more than 1 fluorine atom,

p is 0 or 1,

q is independently 0 or 1,

X ^B is independently a single bond or a divalent base,

R ^B1 are each independently C _1-6 alkyl,

R ^B2 are each independently a C _1-6 alkyl group or a hydrogen atom.

The surface treatment agent of the present disclosure can provide a surface treatment layer with excellent friction durability by containing an alkylamide compound containing a fluoropolyether group as component (B).

(Silane compound containing fluoropolyether group)

The above-mentioned silane compound containing a fluoropolyether group is a compound containing a fluoropolyether group and a hydrolyzable silane group.

In one aspect, the silane compound containing a fluoropolyether group is a silane compound containing a fluoropolyether group represented by the following formula (A1) or (A2),

R ^FA1 _α1 -X ^A -R ^Si _β1 (A1)

R ^Si _γ1 -X ^A -R ^FA2 -X ^A -R ^Si _γ1 (A2)

In the formula,

R ^FA1 are independently Rf ¹ -R ^F -O _q -,

R ^FA2 is -Rf ² _p -R ^F -O _q -,

R ^F are independently divalent fluoropolyether groups,

Rf ¹ is a C _1-16 alkyl group which may be substituted by more than 1 fluorine atom,

Rf ² is a C _1-6 alkylene group which may be substituted by more than 1 fluorine atom,

p is 0 or 1,

q is independently 0 or 1,

R ^Si is each independently a monovalent group containing a Si atom bonded to a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent group,

At least one R ^Si is a univalent group containing a Si atom bonded to a hydroxyl group or a hydrolyzable group,

X ^A are each independently a single bond or a valence base of 2 to 10,

α1 is an integer from 1 to 9,

β1 is an integer from 1 to 9,

γ1 is each independently an integer from 1 to 9.

In formula (A1), R ^FA1 is Rf ¹ -R ^F -O _q -.

In formula (A2), R ^FA2 is -Rf ² _p -R ^F -O _q -.

In formulas (A1) and (A2), Rf ¹ is a C _1-16 alkyl group which may be substituted by one or more fluorine atoms.

The "C _1-16 alkyl group" in the above-mentioned C _1-16 alkyl group which may be substituted by more than one fluorine atom can be a straight chain or a branched chain, preferably a straight chain or branched chain C _{1- 6} alkyl (especially C _1-3 alkyl), especially linear C _1-6 alkyl (especially C _1-3 alkyl).

Rf ¹ is preferably a C _1-16 alkyl group substituted by one or more fluorine atoms, especially a CF ₂ HC _1-15 perfluoroalkyl group, and more preferably a C _1-16 perfluoroalkyl group.

The above-mentioned C _1-16 perfluoroalkyl group can be a straight chain or a branched chain, preferably a straight chain or branched chain C _1-6 perfluoroalkyl group (especially a C _1-3 perfluoroalkyl group), especially Preferred are linear C _1-6 perfluoroalkyl groups (especially C _1-3 perfluoroalkyl groups), specifically -CF ₃ , -CF ₂ CF ₃ or -CF ₂ CF ₂ CF ₃ .

In formulas (A1) and (A2), Rf ² is a C _1-6 alkylene group which may be substituted by one or more fluorine atoms.

The "C _1-6 alkylene group" in the above-mentioned C _1-6 alkylene group which may be substituted by more than one fluorine atom can be a straight chain or a branched chain, preferably a straight chain or a branched chain of C _1-3 alkylene group, especially linear C _1-3 alkylene group.

Rf ² is preferably a C _1-6 alkylene group substituted by one or more fluorine atoms, particularly preferably a C _1-6 perfluoroalkylene group, and more preferably a C _1-3 perfluoroalkylene group.

The above-mentioned C _1-6 perfluoroalkylene group can be a straight chain or a branched chain, preferably a straight chain or branched chain C _1-3 perfluoroalkylene group, especially a straight chain C _1-3 perfluoroalkylene group. The fluoroalkylene group is specifically -CF ₂ -, -CF ₂ CF ₂ - or -CF ₂ CF ₂ CF ₂ -.

In the above formula, p is 0 or 1. In a state, p is 0. In other modalities, p is 1.

In the above formula, q is independently 0 or 1. In one state, q is 0. In other modalities, q is 1.

In formulas (A1) and (A2), R ^F is each independently a divalent fluoropolyether group.

R ^F is preferably a base represented by the following formula,

-(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ R ^Fa ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f -

In the formula,

R ^Fa are each independently a hydrogen atom, a fluorine atom or a chlorine atom,

a, b, c, d, e and f are each independently an integer from 0 to 200. The sum of a, b, c, d, e and f is more than 1. Mark a, b, c, d, e or f The order of existence of each repeating unit enclosed in parentheses is arbitrary in the formula; however, when all R ^Fa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more .

R ^Fa is preferably a hydrogen atom or a fluorine atom, particularly preferably a fluorine atom. However, when all R ^Fa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more.

It is preferable that a, b, c, d, e and f are each independently an integer from 0 to 100, particularly preferably an integer from 0 to 50.

The sum of a, b, c, d, e and f is preferably 5 or more, particularly 10 or more, more preferably 20 or more, for example, 25 or more or 30 or more. The sum of a, b, c, d, e and f is preferably 200 or less, especially 100 or less, more preferably 60 or less, for example, it can be 50 or less or 30 or less.

These repeating units may be linear or branched, and may also contain cyclic structures. For example, -(OC ₆ F ₁₂ )- can be -(OCF ₂ CF ₂ CF ₂ CF ₂ CF ₂ CF ₂ )-, -(OCF(CF ₃ )CF ₂ CF ₂ CF ₂ CF ₂ )-, -(OCF ₂ CF(CF ₃ )CF ₂ CF ₂ CF ₂ )-, -(OCF ₂ CF ₂ CF(CF ₃ )CF ₂ CF ₂ )-, -(OCF ₂ CF ₂ CF ₂ CF(CF ₃ )CF ₂ )- , -(OCF ₂ CF ₂ CF ₂ CF ₂ CF(CF ₃ ))-etc. -(OC ₅ F ₁₀ )- can be -(OCF ₂ CF ₂ CF ₂ CF ₂ CF ₂ )-, -(OCF(CF ₃ )CF ₂ CF ₂ CF ₂ )-, -(OCF ₂ CF(CF ₃ ) CF ₂ CF ₂ )-, -(OCF ₂ CF ₂ CF(CF ₃ )CF ₂ )-, -(OCF ₂ CF ₂ CF ₂ CF(CF ₃ ))-, etc. -(OC ₄ F ₈ )- can be -(OCF ₂ CF ₂ CF ₂ CF ₂ )-, -(OCF(CF ₃ )CF ₂ CF ₂ )-, -(OCF ₂ CF(CF ₃ )CF ₂ )- ,-(OCF ₂ CF ₂ CF(CF ₃ ))-,-(OC(CF ₃ ) ₂ CF ₂ )-,-(OCF ₂ C(CF ₃ ) ₂ )-,-(OCF(CF ₃ )CF( Any one of CF ₃ ))-, -(OCF(C ₂ F ₅ )CF ₂ )- and -(OCF ₂ CF(C ₂ F ₅ ))-. -(OC ₃ F ₆ )- (that is, in the above formula, R ^Fa is a fluorine atom) can be -(OCF ₂ CF ₂ CF ₂ )-, -(OCF ₂ CF ₂ CF ₂ )- and -(OCF ₂ CF(CF ₃ )) - any of them. -(OC ₂ F ₄ )- may be any one of -(OCF ₂ CF ₂ )- and -(OCF(CF ₃ ))-.

The above-mentioned ring structure may be a three-member ring, a four-member ring, a five-member ring or a six-member ring as described below.

In the formula, * represents the bonding position.

The above-mentioned ring structure is preferably a four-member ring, a five-member ring or a six-member ring, and particularly preferably a four-member ring or a six-member ring.

The repeating unit having a ring structure is preferably the following unit.

In the formula, * represents the bonding position.

In one aspect, the repeating units are linear. By configuring the above repeating units into a linear chain, the surface smoothness, friction durability, etc. of the surface treatment layer can be improved.

In one aspect, the repeating units are in the form of branched chains. By configuring the above repeating units in a branched chain shape, the dynamic friction coefficient of the surface treatment layer can be increased.

In one state, R ^F are each independently a base represented by any one of the following formulas (f1) to (f6),

-(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e - (f1)

In the formula, d is an integer from 1 to 200, e is 0 or 1, preferably 0;

-(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f2)

In the formula, c and d are each independently an integer from 0 to 30, e and f are each independently an integer from 1 to 200,

The sum of c, d, e and f is 2 or more,

The order of existence of each repeating unit marked c, d, e or f and enclosed in parentheses is arbitrary in the formula;

-(R ⁶ -R ⁷ ) _g - (f3)

In the formula, R ⁶ is OCF ₂ or OC ₂ F ₄ ,

R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or 2 or 3 groups independently selected from these groups. combination,

g is an integer from 2 to 100;

-(R ⁶ -R ⁷ ) _g -R ^r -(R ^7' -R ^6' ) _g' - (f4)

In the formula, R ⁶ is OCF ₂ or OC ₂ F ₄ ,

R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or 2 or 3 groups independently selected from these groups. combination,

R ^6' is OCF ₂ or OC ₂ F ₄ ,

R ^7' is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or 2 or 3 groups independently selected from these groups. combination,

g is an integer from 2 to 100,

g' is an integer from 2 to 100,

R ^r is the following formula,

In the formula, * represents the bonding position;

-(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f5)

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. Label a, b, c, d, e or f and enclose it in brackets. The order of existence of each repeating unit in the formula is arbitrary;

-(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f6)

In the formula, f is an integer from 1 to 200, a, b, c, d and e are each independently an integer from 0 to 200. Label a, b, c, d, e or f and enclose it in brackets. The order of existence of each repeating unit in the formula is arbitrary.

In the above formula (f1), d is preferably an integer of 5 to 200, particularly 10 to 100, more preferably 15 to 50, for example, 25 to 35. OC ₃ F ₆ in the above formula (f1) is preferably (OCF ₂ CF ₂ CF ₂ ), (OCF (CF ₃ )CF ₂ ) or (OCF ₂ CF (CF ₃ )), especially (OCF ₂ CF ₂ CF ₂ ). In one state, e is 0. In other modalities, e is 1. (OC ₂ F ₄ ) in the above formula (f1) is preferably (OCF ₂ CF ₂ ) or (OCF (CF ₃ )), particularly preferably (OCF ₂ CF ₂ ).

In the above formula (f2), e and f are preferably each independently an integer of 5 to 200, particularly preferably an integer of 10 to 200. In addition, the sum of c, d, e and f is preferably 5 or more, particularly 10 or more, and may be 15 or more or 20 or more, for example. In one form, the above formula (f2) is preferably -(OCF ₂ CF ₂ CF ₂ CF ₂ ) _c -(OCF ₂ CF ₂ CF ₂ ) _d -(OCF ₂ CF ₂ ) _e -(OCF ₂ ) _f - The basis represented. In other aspects, formula (f2) can be a base represented by -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f -.

In the above formula (f3), R ⁶ is preferably OC ₂ F ₄ . In the above (f3), R ⁷ is preferably a group selected from OC ₂ F ₄ , OC ₃ F ₆ and OC ₄ F ₈ or a combination of 2 or 3 groups independently selected from these groups, Particularly preferred are OC ₃ F ₆ or OC ₄ F ₈ . The combination of two or three groups independently selected from OC ₂ F ₄ , OC ₃ F ₆ and OC ₄ F ₈ is not particularly limited. Examples include: -OC ₂ F ₄ OC ₃ F ₆ -, -OC ₂ F ₄ OC ₄ F ₈ -, -OC ₃ F ₆ OC ₂ F ₄ -, -OC ₃ F ₆ OC ₃ F ₆ -, -OC ₃ F ₆ OC ₄ F ₈ -, -OC ₄ F ₈ OC ₄ F ₈ -, -OC ₄ F ₈ OC ₃ F ₆ -, -OC ₄ F ₈ OC ₂ F ₄ -, -OC ₂ F ₄ OC 2 F ₄ OC ₃ F ₆ -, -OC ₂ F ₄ OC ₂ F _{4 OC 4} F ₈ -, -OC ₂ F ₄ OC ₃ F ₆ OC ₂ F ₄ -, -OC ₂ F ₄ OC ₃ F ₆ OC ₃ F ₆ -, -OC ₂ F ₄ OC ₄ F ₈ OC ₂ F ₄ -, - OC ₃ F ₆ OC ₂ F ₄ OC ₂ F ₄ -, -OC ₃ F ₆ OC ₂ F ₄ OC ₃ F ₆ -, -OC ₃ F ₆ OC ₃ F ₆ OC ₂ F ₄ -and-OC ₄ F ₈ OC ₂ F ₄ OC ₂ F ₄ -etc. In the above formula (f3), g is preferably an integer of 3 or more, and particularly preferably 5 or more. The above g is preferably an integer of 50 or less. In the above formula (f3), OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ may be either linear or branched chains, and linear chains are preferred. In this aspect, the above formula (f3) is preferably -(OC ₂ F ₄ -OC ₃ F ₆ ) _g - or -(OC ₂ F ₄ -OC ₄ F ₈ ) _g -.

In the above-mentioned formula (f4), R ⁶ , R ⁷ and g have the same meaning and the same aspect as those described in the above-mentioned formula (f3). R ^6' , R ^7' and g' respectively have the same meaning and form as R ⁶ , R ⁷ and g described in the above formula (f3). R ^r is preferably the following formula:

In the formula, * represents the bonding position;

Particularly preferred is the following formula:

In the formula, * represents the bonding position.

In the above formula (f5), e is preferably an integer of not less than 1 and not more than 100, and particularly preferably not less than 5 and not more than 100. The sum of a, b, c, d, e and f is preferably 5 or more, particularly 10 or more, for example, 10 or more and 100 or less.

In the above formula (f6), f is preferably an integer of not less than 1 and not more than 100, and particularly preferably not less than 5 and not more than 100. The sum of a, b, c, d, e and f is preferably 5 or more, particularly 10 or more, for example, 10 or more and 100 or less.

In one aspect, R ^F is the base represented by the above formula (f1).

In one aspect, R ^F is the base represented by the above formula (f2).

In one aspect, R ^F is the base represented by the above formula (f3) or (f4).

In one aspect, the above-mentioned R ^F is a base represented by the above-mentioned formula (f3).

In one aspect, the above-mentioned R ^F is a base represented by the above-mentioned formula (f4).

In one aspect, R ^F is the base represented by the above formula (f5).

In one aspect, R ^F is the base represented by the above formula (f6).

In R ^F , the ratio of e to f (hereinafter referred to as "e/f ratio") is preferably 0.1 to 10, more preferably 0.2 to 5, more preferably 0.2 to 2, still more preferably 0.2 to 1.5 , the best value is 0.2 to 0.85. By setting the e/f ratio to 10 or less, the smoothness, friction durability, and chemical resistance (for example, durability against artificial sweat) of the surface treatment layer obtained from this compound are further improved. The smaller the e/f ratio, the smoother and frictional durability of the surface treatment layer are improved. On the other hand, by setting the e/f ratio to 0.1 or more, the stability of the compound can be further improved. The larger the e/f ratio, the more stable the compound is.

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

In the above-mentioned silane compound containing a fluoropolyether group, the number average molecular weight of the R ^FA1 and R ^FB2 parts is not particularly limited, but is, for example, 500 to 30,000, preferably 1,500 to 30,000, and particularly preferably 2,000 to 10,000. In this specification, the number average molecular weight of R ^FA1 and R ^FA2 is the value measured by ¹⁹ F-NMR.

In formulas (A1) and (A2), R ^Si is each independently a univalent group containing "Si atom bonded to a hydroxyl group, a hydrolyzable group, a hydrogen atom or a univalent group", and at least one R ^Si contains A univalent group of "Si atom bonded to a hydroxyl group or a hydrolyzable group".

In a preferred embodiment, R ^Si is a monovalent group containing "Si atom bonded to a hydroxyl group or a hydrolyzable group", and particularly preferably, R Si is a monovalent group containing "Si atom bonded to a hydrolyzable group".

In a preferred aspect, R ^Si is a group represented by the following formula (S1), (S2), (S3), (S4) or (S5).

-SiR ¹¹ _n1 R ¹² _3-n1 (S2)

-SiR ^a1 _k1 R ^b1 _l1 R ^c1 _m1 (S3)

-CR ^d1 _k2 R ^e1 _l2 R ^f1 _m2 (S4)

-NR ^g1 R ^h1 (S5)

In the above formula, R ¹¹ is each independently a hydroxyl group or a hydrolyzable group.

R ¹¹ is preferably each independently a hydrolyzable group.

R ¹¹ is preferably independently -OR ^h1 , -OCOR ^h1 , -ON=CR ^h1 , -NR ^h1 ₂ , -NHR ^h1 , -NCO or halogen (in this equation, R ^h1 represents substituted or unsubstituted Substituted C _1-4 alkyl), especially -OR ^h1 (that is, alkoxy). Examples of R ^h1 include: unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl and isobutyl; substituted alkyl groups such as chloromethyl. Among these, an alkyl group is preferred, especially an unsubstituted alkyl group, and a methyl or ethyl group is particularly preferred. In one form, R ^h1 is methyl. In other forms, R ^h1 is ethyl.

In the above formula, R ¹² is each independently a hydrogen atom or a monovalent group. This univalent group is a univalent group excluding the above-mentioned hydrogen atom, hydroxyl group and hydrolyzable group.

The above-mentioned monovalent group is preferably a monovalent organic group. This monovalent organic group is a monovalent organic group excluding the above-mentioned hydrolyzable group.

In R ¹² , the monovalent group is preferably a C _1-20 alkyl group, particularly preferably a C _1-6 alkyl group, and more preferably a methyl group.

In the above formula, n1 is an integer from 0 to 3 independently in each (SiR ¹¹ _n1 R ¹² _3-n1 ) unit. However, when R ^Si is a base represented by formula (S1) or (S2), the R ^Si part at the end of formula (A1) and formula (A2) (hereinafter also only referred to as formula (A1) and formula () In the "terminal part" of A2), there is at least one (SiR ¹¹ _n1 R ¹² _3-n1 ) unit with n1 ranging from 1 to 3. That is, in this terminal part, all n1 will not be 0 at the same time. In other words, at least one Si atom bonded to a hydroxyl group or a hydrolyzable group exists in the terminal portion of formula (A1) and formula (A2).

It is preferable that n1 in each (SiR ¹¹ _n1 R ¹² _3-n1 ) unit is independently an integer of 1 to 3, particularly preferably 2 or 3, more preferably 3.

In the above formula, X ¹¹ is each independently a single bond or a divalent group. The divalent group is preferably an oxygen atom, a sulfur atom, NH, CO or a divalent organic group. The divalent group is preferably a divalent organic group. The divalent organic group is preferably -R ²⁸ -O _x -R ²⁹ - (in the formula, R ²⁸ and R ²⁹ are each independently a single bond or a C _1-20 alkylene group, and x is 0 or 1). The C _1-20 alkylene group can be a straight chain or a branched chain, preferably a straight chain. The C _1-20 alkylene group is preferably a C _1-10 alkylene group, particularly preferably a C _1-6 alkylene group, and more preferably a C _1-3 alkylene group.

In one aspect, X ¹¹ is each independently -C _1-6 alkylene-OC _1-6 alkylene- or -OC _1-6 alkylene-. The right side of X ¹¹ is bonded to Si.

In _a preferred _embodiment ^, A linear C _1-2 alkylene group, more preferably a linear C _1-2 alkylene group.

In the above formula, R ¹³ is each independently a hydrogen atom or a monovalent organic group. The monovalent organic group is preferably a C _1-20 alkyl group. The C _1-20 alkyl group can be a straight chain or a branched chain, preferably a straight chain.

In a preferred embodiment, R ¹³ is independently a hydrogen atom or a linear C _1-6 alkyl group, preferably a hydrogen atom or a linear C _1-3 alkyl group, preferably a hydrogen atom or a methyl group. .

In the above formula, t is each independently an integer of 2 or more.

It is preferable that t is an integer of 2 to 10 independently, and it is especially preferable that it is an integer of 2 to 6.

In the above formula, R ¹⁴ is each 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, and is particularly preferably a fluorine atom. In a preferred embodiment, R ¹⁴ is a hydrogen atom.

In the above formula, each time R ¹⁵ appears, it is independently a single bond, an oxygen atom, an alkylene group having 1 to 6 carbon atoms, or an alkyleneoxy group having 1 to 6 carbon atoms. In the alkyleneoxy group, the alkylene group is bonded to the carbon atom having R ¹³ .

In one aspect, each occurrence of R ¹⁵ is independently an oxygen atom, an alkylene group having 1 to 6 carbon atoms, or an alkyleneoxy group having 1 to 6 carbon atoms.

In a preferred form, R ¹⁵ is a single bond.

In one aspect, formula (S1) is the following formula (S1-a).

In the formula,

R ¹¹ , R ¹² , R ¹³ , X ¹¹ and n1 have the same meaning as in the above formula (S1),

t1 and t2 are each independently an integer above 0, preferably an integer above 1, especially 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. Integer, the total of t1 and t2 is 2 or more,

The order of existence of the repeating units marked t1 and t2 and enclosed in parentheses is arbitrary in the formula.

In a preferred aspect, formula (S1) is the following formula (S1-b).

In the formula, R ¹¹ , R ¹² , R ¹³ , X ¹¹ , n1 and t have the same meanings as in the above formula (S1).

In the above formula, R ^a1 is each independently -Z ¹ -SiR ²¹ _p1 R ²² _q1 R ²³ _r1 .

Z ¹ are each independently a divalent base. The right side of the structure described below as Z ¹ is bonded to (SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ).

The above-mentioned divalent group is preferably an oxygen atom, a sulfur atom, NH, CO or a divalent organic group, and particularly preferably an oxygen atom or a divalent organic group.

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

In a preferred embodiment, Z ¹ does not include those forming a siloxane bond with the Si atom to which Z ¹ is bonded. In formula (S3), (Si-Z ¹ -Si) preferably does not contain siloxane bonds.

The above Z ¹ is preferably a C _1-6 alkylene group, -(CH ₂ ) _z1 -O-(CH ₂ ) _z2 -(in the formula, z1 is an integer from 0 to 6, for example, it is an integer from 1 to 6, z2 is an integer from 0 to 6, for example, an integer from 1 to 6) or -(CH ₂ ) _z3 -phenylene-(CH ₂ ) _z4 -(where z3 is an integer from 0 to 6, for example, 1 to 6 an integer, z4 is an integer from 0 to 6, for example, an integer from 1 to 6). The C _1-6 alkylene group can be a straight chain or a branched chain, preferably a straight chain. These groups may be substituted with at least one substituent selected from, for example, a fluorine atom, C _1-6 alkyl group, C _2-6 alkenyl group and C _2-6 alkynyl group, and are preferably unsubstituted.

In a preferred embodiment, Z ¹ is C _1-6 alkylene group or -(CH ₂ ) _z3 -phenylene group -(CH ₂ ) _z4 -, preferably -phenylene group -(CH ₂ ) _z4 - . When Z ¹ is the base, the light resistance (especially ultraviolet resistance) can be further improved.

In other preferred embodiments, the above-mentioned Z ¹ is a C _1-3 alkylene group. In one aspect, Z ¹ can be -CH ₂ CH ₂ CH ₂ -. In other aspects, Z ¹ can be -CH ₂ CH ₂ -.

R ²¹ is each independently -Z ^1' -SiR ^21' _p1' R ^22' _q1' R ^23' _r1' .

The above-mentioned Z ^1' are each independently a divalent base. The right side of the structure described below as Z ^1' is bonded to (SiR ^21' _p1' R ^22' _q1' R ^23' _r1' ).

The above-mentioned divalent group is preferably an oxygen atom, a sulfur atom, NH, CO or a divalent organic group, and particularly preferably an oxygen atom or a divalent organic group.

In a preferred embodiment, Z ^1' is a divalent organic group.

In a preferred embodiment, Z ^1' does not include those forming a siloxane bond with the Si atom to which Z ^1' is bonded. In formula (S3), (Si-Z ^1' -Si) preferably does not contain siloxane bonds.

The above Z ^1' is preferably a C _1-6 alkylene group, -(CH ₂ ) _z1' -O-(CH ₂ ) _z2' -(in the formula, z1' is an integer from 0 to 6, for example, 1 to 6 an integer, z2' is an integer from 0 to 6, for example, an integer from 1 to 6) or -(CH ₂ ) _z3' -phenyl-(CH ₂ ) _z4' -(in the formula, z3' is 0 to 6 is an integer, for example, an integer from 1 to 6, z4' is an integer from 0 to 6, for example, an integer from 1 to 6). The C _1-6 alkylene group can be a straight chain or a branched chain, preferably a straight chain. These groups may be substituted with at least one substituent selected from, for example, a fluorine atom, C _1-6 alkyl group, C _2-6 alkenyl group and C _2-6 alkynyl group, and are preferably unsubstituted.

In a preferred embodiment, Z ^1' is C _1-6 alkylene or -(CH ₂ ) _z3' -phenylene-(CH ₂ ) _z4' -, preferably -phenylene-(CH ₂ ) _z4' -. When Z ^1' is this group, the light resistance (especially ultraviolet resistance) can be further improved.

In other preferred embodiments, the above-mentioned Z ^1' is a C _1-3 alkylene group. In one aspect, Z ^1' can be -CH ₂ CH ₂ CH ₂ -. In other aspects, Z ^1' can be -CH ₂ CH ₂ -.

R ^21' are each independently -Z ^1" -SiR ^22" _q1" R ^23" _r1" .

The above-mentioned Z ^1" are each independently a divalent group. The right side of the structure described below as Z ^1" is bonded to (SiR ^22" _q1" R ^23" _r1" ).

The above-mentioned divalent group is preferably an oxygen atom, a sulfur atom, NH, CO or a divalent organic group, and particularly preferably an oxygen atom or a divalent organic group.

In a preferred embodiment, Z ^1" is a divalent organic radical.

In a preferred embodiment, Z ^1" does not include those forming siloxane bonds with the Si atoms to which Z ^1" is bonded. In formula (S3), (Si-Z ^1" -Si) preferably does not contain siloxane bonds.

The above Z ^1" is preferably a C _1-6 alkylene group, -(CH ₂ ) _z1" -O-(CH ₂ ) _z2" -(in the formula, z1" is an integer from 0 to 6, for example, 1 to 6 an integer, z2" is an integer from 0 to 6, for example, an integer from 1 to 6) or -(CH ₂ ) _z3" -phenyl-(CH ₂ ) _z4" -(where z3" is 0 to 6 is an integer, such as an integer from 1 to 6, z4" is an integer from 0 to 6, such as an integer from 1 to 6). The C _1-6 alkylene group can be a straight chain or a branched chain, preferably straight chain Chain. These groups can be substituted by more than one substituent selected from, for example, fluorine atom, C _1-6 alkyl group, C _2-6 alkenyl group and C _2-6 alkynyl group, preferably unsubstituted .

In a preferred embodiment, Z ^1" is C _1-6 alkylene or -(CH ₂ ) _z3" -phenylene-(CH ₂ ) _z4" -, preferably -phenylene-(CH ₂ ) _z4" -. When Z ^1" is the base, the light resistance (especially ultraviolet resistance) can be further improved.

In other preferred embodiments, the above-mentioned Z ^1" is a C _1-3 alkylene group. In one embodiment, Z ^1" can be -CH ₂ CH ₂ CH ₂ -. In other aspects, Z ^1" can be -CH ₂ CH ₂ -.

R ^22" is each independently a hydroxyl group or a hydrolyzable group.

R ^22" is preferably each independently a hydrolyzable group.

R ^22" is preferably independently -OR ^h1 , -OCOR ^h1 , -ON=CR ^h1 ₂ , -NR ^h1 ₂ , -NHR ^h1 , -NCO or halogen (in this equation, R ^h1 represents substituted or Unsubstituted C _1-4 alkyl), especially -OR ^h1 (that is, alkoxy). Examples of R ^h1 include: methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl unsubstituted alkyl groups such as chloromethyl group; substituted alkyl groups such as chloromethyl group. Among these, alkyl groups are preferred, especially unsubstituted alkyl groups, and methyl or ethyl groups are particularly preferred. In the same state In the other forms, R ^h1 is methyl, and in other forms, R ^h1 is ethyl.

R ^23" is each independently a hydrogen atom or a monovalent organic group. The monovalent organic group is a monovalent organic group excluding the above-mentioned hydrolyzable group.

In one aspect, the monovalent organic group is a C _1-20 alkyl group, preferably a C _1-6 alkyl group, and more preferably a methyl group.

q1" are each independently an integer from 0 to 3, and the above r1" are each independently an integer from 0 to 3. The total of q1" and r1" is 3 in the unit (SiR ^22" _q1" R ^23" _r1" ).

The above q1" in each (SiR ^22" _q1" R ^23" _r1" ) unit is preferably independently an integer of 1 to 3, more preferably 2 to 3, more preferably 3.

R ^22' is each independently a hydroxyl group or a hydrolyzable group.

R ^22' is preferably each independently a hydrolyzable group.

R ^22' is preferably independently -OR ^h1 , -OCOR ^h1 , -ON=CR ^h1 ₂ , -NR ^h1 ₂ , -NHR ^h1 , -NCO or halogen (in this equation, R ^h1 represents substituted or Unsubstituted C _1-4 alkyl), especially -OR ^h1 (that is, alkoxy). Examples of R ^h1 include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl and isobutyl; substituted alkyl groups such as chloromethyl. Among these, an alkyl group is preferred, especially an unsubstituted alkyl group, and a methyl or ethyl group is particularly preferred. In one aspect, R ^h1 is methyl, and in the other aspect, R ^h1 is ethyl.

R ^23' is each independently a hydrogen atom or a monovalent organic group. This monovalent organic group is a monovalent organic group excluding the above-mentioned hydrolyzable group.

In one aspect, the monovalent organic group is a C _1-20 alkyl group, preferably a C _1-6 alkyl group, and more preferably a methyl group.

The above-mentioned p1' are each independently an integer from 0 to 3, q1' are each independently an integer from 0 to 3, and r1' are each independently an integer from 0 to 3. The sum of p', q1' and r1' is 3 in each (SiR ^21' _p1' R ^22' _q1' R ^23' _r1' ) unit.

In one state, p1' is 0.

In one form, p1' in each (SiR ^21' _p1' R ^22' _q1' R ^23' _r1' ) unit is independently an integer from 1 to 3, and may be an integer from 2 to 3 or 3. In the preferred form, p1' is 3.

In one form, q1' in each (SiR ^21' _p1' R ^22' _q1' R ^23' _r1' ) unit is independently an integer from 1 to 3, preferably 2 or 3, especially 3 .

In a state, p1' is 0, and q1' in each (SiR ^21' _p1' R ^22' _q1' R ^23' _r1' ) unit is independently an integer from 1 to 3, preferably 2 or 3 , preferably 3.

R ²² is each independently a hydroxyl group or a hydrolyzable group.

R ²² is preferably each independently a hydrolyzable group.

R ^22' is preferably independently -OR ^h1 , -OCOR ^h1 , -ON=CR ^h1 ₂ , -NR ^h1 ₂ , -NHR ^h1 , -NCO or halogen (in this equation, R ^h1 represents substituted or Unsubstituted C _1-4 alkyl), especially -OR ^h1 (that is, alkoxy). Examples of R ^h1 include: unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl and isobutyl; substituted alkyl groups such as chloromethyl. Among these, an alkyl group is preferred, especially an unsubstituted alkyl group, and a methyl or ethyl group is particularly preferred. In one aspect, R ^h1 is methyl, and in the other aspect, R ^h1 is ethyl.

R ²³ is each independently a hydrogen atom or a monovalent organic group. This monovalent organic group is a monovalent organic group excluding the above-mentioned hydrolyzable group.

In one aspect, the monovalent organic group is a C _1-20 alkyl group, preferably a C _1-6 alkyl group, and more preferably a methyl group.

The above-mentioned p1 are each independently an integer from 0 to 3, q1 are each independently an integer from 0 to 3, and r are each independently an integer from 0 to 3. The total of p1, q1 and r1 is 3 in the (SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ) unit.

In one state, p1 is 0.

In one state, p1 is independently an integer from 1 to 3, an integer from 2 to 3, or 3 in each (SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ) unit. In the preferred configuration, p1 is 3.

In one aspect, q1 in each (SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ) unit is independently an integer from 1 to 3, preferably 2 or 3, particularly preferably 3.

In one state, p1 is 0, and q1 in each (SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ) unit is independently an integer from 1 to 3, preferably 2 or 3, more preferably 3.

In the above formula, R ^b1 is each independently a hydroxyl group or a hydrolyzable group.

R ^b1 is preferably each independently a hydrolyzable group.

R ^b1 is preferably independently -OR ^h1 , -OCOR ^h1 , -ON=CR ^h1 ₂ , -NR ^h1 ₂ , -NHR ^h1 , -NCO or halogen (in this equation, R ^h1 represents substituted or unsubstituted Substituted C _1-4 alkyl), especially -OR ^h1 (that is, alkoxy). Examples of R ^h1 include: unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl and isobutyl; substituted alkyl groups such as chloromethyl. Among these, an alkyl group is preferred, especially an unsubstituted alkyl group, and a methyl or ethyl group is particularly preferred. In one aspect, R ^h1 is methyl, and in the other aspect, R ^h1 is ethyl.

In the above formula, R ^c1 is each independently a hydrogen atom or a monovalent organic group. This monovalent organic group is a monovalent organic group excluding the above-mentioned hydrolyzable group.

In one aspect, the monovalent organic group is a C _1-20 alkyl group, preferably a C _1-6 alkyl group, and more preferably a methyl group.

The above k1 are each independently an integer from 0 to 3, l1 is each independently an integer from 0 to 3, and m1 is each independently an integer from 0 to 3. The sum of k1, l1 and m1 is 3 in each (SiR ^a1 _k1 R ^b1 _l1 R ^c1 _m1 ) unit.

In a state, k1 in each (SiR ^a1 _k1 R ^b1 _l1 R ^c1 _m1 ) unit is independently an integer from 1 to 3, preferably 2 or 3, particularly preferably 3. In the preferred configuration, k1 is 3.

In the formulas (A1) and (A2), when R ^Si is a group represented by the formula (S3), it is preferable that at least 2 are present in the terminal parts of the formulas (A1) and the formula (A2). "Si atom bonded to hydroxyl group or hydrolyzable group".

In a preferred aspect, the base represented by formula (S3) has -Z ¹ -SiR ²² _q1 R ²³ _r1 (in the formula, q1 is an integer from 1 to 3, preferably 2 or 3, especially 3 , r1 is an integer from 0 to 2), -Z ^1' -SiR ^22' _q1' R ^23' _r1' (wherein, q1' is an integer from 1 to 3, preferably 2 or 3, especially 3, r1' is an integer from 0 to 2) or -Z ^1" -SiR ^22" _q1" R ^23" _r1" (wherein, q1" is an integer from 1 to 3, preferably 2 or 3, especially 3, r1" is any one of the integers from 0 to 2). ^{Z 1} , Z ^1' , Z ^1" , R ²² , R ²³ , R ^22' , R ^23' , R ^22" , and R ^23" are the same as the above. Same meaning.

In a preferred aspect, when there is R ^21' in formula (S3), in at least one (preferably all) R ^21' , q1" is an integer from 1 to 3, preferably 2 or 3, preferably 3.

In a preferred aspect, when there is R ²¹ in formula (S3), in at least one (preferably all) R ²¹ , p1' is 0 and q1' is an integer from 1 to 3, Preferably it is 2 or 3, especially preferably 3.

In a preferred aspect, when there is R ^a1 in formula (S3), it is preferred that p1 is 0 and q1 is an integer from 1 to 3 in at least one (preferably all) R ^a1 2 or 3, preferably 3.

In a preferred aspect, in formula (S3), k1 is 2 or 3, preferably 3, p1 is 0, and q1 is 2 or 3, preferably 3.

In one aspect, formula (S3) contains no siloxane bonds.

R ^d1 are each independently -Z ² -CR ³¹ _p2 R ³² _q2 R ³³ _r2 .

Z ² is independently a single bond or a divalent base. The right side of the structure described below as Z ² is bonded to (CR ³¹ _p2 R ³² _q2 R ³³ _r2 ).

The above-mentioned divalent group is preferably an oxygen atom, a sulfur atom, NH, CO or a divalent organic group, and particularly preferably an oxygen atom or a divalent organic group.

It is preferable that ^Z2 is independently an oxygen atom or a divalent organic group, and it is particularly preferable that it is a divalent organic group.

The above Z ² is preferably a C _1-6 alkylene group, -(CH ₂ ) _z5 -O-(CH ₂ ) _z6 -(in the formula, z5 is an integer from 0 to 6, for example, it is an integer from 1 to 6, z6 is an integer from 0 to 6, for example, an integer from 1 to 6) or -(CH ₂ ) _z7 -phenylene-(CH ₂ ) _z8 -(where z7 is an integer from 0 to 6, for example, 1 to 6 an integer, z8 is an integer from 0 to 6, for example, an integer from 1 to 6). The C _1-6 alkylene group can be a straight chain or a branched chain, preferably a straight chain. These groups may be substituted with at least one substituent selected from, for example, a fluorine atom, C _1-6 alkyl group, C _2-6 alkenyl group and C _2-6 alkynyl group, and are preferably unsubstituted.

In a preferred embodiment, Z ² is C _1-6 alkylene group or -(CH ₂ ) _z7 -phenylene group -(CH ₂ ) _z8 -, preferably -phenylene group -(CH ₂ ) _z8 - . When Z ² is the base, the light resistance (especially ultraviolet resistance) can be further improved.

In other preferred embodiments, the above-mentioned Z ² is a C _1-3 alkylene group. In one aspect, Z ² can be -CH ₂ CH ₂ CH ₂ -. In other aspects, Z ² can be -CH ₂ CH ₂ -.

R ³¹ are each independently -Z ^2' -CR ^32' _q2' R ^33' _r2' .

Z ^2' is independently a single bond or a divalent group. The right side of the structure described below as Z ^2' is bonded to (CR ^32' _q2' R ^33' _r2' ).

The above-mentioned divalent group is preferably an oxygen atom, a sulfur atom, NH, CO or a divalent organic group, and particularly preferably an oxygen atom or a divalent organic group.

Z ^2' is preferably each independently an oxygen atom or a divalent organic group, particularly preferably a divalent organic group.

The above Z ^2' is preferably a C _1-6 alkylene group, -(CH ₂ ) _z5' -O-(CH ₂ ) _z6' -(in the formula, z5' is an integer from 0 to 6, for example, 1 to 6 an integer, z6' is an integer from 0 to 6, for example, an integer from 1 to 6) or -(CH ₂ ) _z7' -phenyl-(CH ₂ ) _z8' -(where z7' is 0 to 6 is an integer, for example, an integer from 1 to 6, z8' is an integer from 0 to 6, for example, an integer from 1 to 6). The C _1-6 alkylene group can be a straight chain or a branched chain, preferably a straight chain. These groups may be substituted with at least one substituent selected from, for example, a fluorine atom, C _1-6 alkyl group, C _2-6 alkenyl group and C _2-6 alkynyl group, and are preferably unsubstituted.

In a preferred embodiment, Z ^2' is C _1-6 alkylene or -(CH ₂ ) _z7' -phenylene-(CH ₂ ) _z8' -, preferably -phenylene-(CH ₂ ) _z8' -. When Z ^2' is this group, the light resistance (especially ultraviolet resistance) can be further improved.

In other preferred embodiments, the above-mentioned Z ^2' is a C _1-3 alkylene group. In one aspect, Z ^2' can be -CH ₂ CH ₂ CH ₂ -. In other aspects, Z ^2' can be -CH ₂ CH ₂ -.

R ^32' is each independently -Z ³ -SiR ³⁴ _n2 R ³⁵ _3-n2 .

The above Z ³ are each independently a single bond or a divalent group. The right side of the structure described below as Z ³ is bonded to (SiR ³⁴ _n2 R ³⁵ _3-n2 ).

The above-mentioned divalent group is preferably an oxygen atom, a sulfur atom, NH, CO or a divalent organic group, and particularly preferably an oxygen atom or a divalent organic group.

Preferably, Z ³ is each independently an oxygen atom or a divalent organic group, particularly preferably a divalent organic group.

In one state, Z ³ is an oxygen atom.

In one form, Z ³ is a divalent organic group.

The above Z ³ is preferably a C _1-6 alkylene group, -(CH ₂ ) _z5" -O-(CH ₂ ) _z6" -(in the formula, z5" is an integer from 0 to 6, for example, from 1 to 6 Integer, z6" is an integer from 0 to 6, for example, an integer from 1 to 6) or -(CH ₂ ) _z7" -phenyl-(CH ₂ ) _z8" -(where z7" is from 0 to 6 An integer, for example, an integer from 1 to 6, z8" is an integer from 0 to 6, for example, an integer from 1 to 6). The C _1-6 alkylene group can be a straight chain or a branched chain, preferably a straight chain. These groups may be substituted with at least one substituent selected from, for example, a fluorine atom, C _1-6 alkyl group, C _2-6 alkenyl group and C _2-6 alkynyl group, and are preferably unsubstituted.

In a preferred embodiment, Z ³ is C _1-6 alkylene or -(CH ₂ ) _z7" -phenylene-(CH ₂ ) _z8" -, preferably -phenylene-(CH ₂ ) _z8" -. When Z ³ is the base, the light resistance (especially ultraviolet resistance) can be further improved.

In other preferred embodiments, the above-mentioned Z ³ is a C _1-3 alkylene group. In one aspect, Z ³ can be -CH ₂ CH ₂ CH ₂ -. In other aspects, Z ³ can be -CH ₂ CH ₂ -.

R ³⁴ is each independently a hydroxyl group or a hydrolyzable group.

R ³⁴ is preferably each independently a hydrolyzable group.

Preferably, R ³⁴ is independently -OR ^h1 , -OCOR ^h1 , -ON=CR ^h1 ₂ , -NR ^h1 ₂ , -NHR ^h1 , -NCO or halogen (in this equation, R ^h1 represents substituted or unsubstituted Substituted C _1-4 alkyl), especially -OR ^h1 (that is, alkoxy). Examples of R ^h1 include: unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl and isobutyl; substituted alkyl groups such as chloromethyl. Among these, an alkyl group is preferred, especially an unsubstituted alkyl group, and a methyl or ethyl group is particularly preferred. In one aspect, R ^h1 is methyl, and in the other aspect, R ^h1 is ethyl.

R ³⁵ is each independently a hydrogen atom or a monovalent organic group. This monovalent organic group is a monovalent organic group excluding the above-mentioned hydrolyzable group.

In R ³⁵ , the monovalent organic group is preferably a C _1-20 alkyl group, especially a C _1-6 alkyl group, and more preferably a methyl group.

In the above formula, n2 in each (SiR ³⁴ _n2 R ³⁵ _3-n2 ) unit is independently an integer from 0 to 3. However, when R ^Si is a base represented by formula (S4), there is at least one n2 of 1 to 3 in the terminal part of formula (A1) and formula (A2) (SiR ³⁴ _n2 R ³⁵ _{3 -n2} ) unit. That is, in this terminal part, all n2 will not be 0 at the same time. In other words, at least one Si atom bonded to a hydroxyl group or a hydrolyzable group exists in the terminal portion of formula (A1) and formula (A2).

n2 in each (SiR ³⁴ _n2 R ³⁵ _3-n2 ) unit is preferably independently an integer of 1 to 3, particularly preferably 2 or 3, more preferably 3.

R ^33' is each independently a hydrogen atom, a hydroxyl group or a monovalent organic group. This monovalent organic group is a monovalent organic group excluding the above-mentioned hydrolyzable group.

In R ^33' , the univalent organic group is preferably a C _1-20 alkyl group or a group represented by R ^41' -(OR ^42' ) _y1' -O _y2' - (in the formula, R ^41' is hydrogen atom or C _1-6 alkyl group, R ^42' is independently a C _1-6 alkylene group, y1' is an integer from 1 to 30, y2' is 0 or 1).

In one state, R ^41' is a hydrogen atom.

In other aspects, R ^41' is C _1-6 alkyl, preferably C _1-3 alkyl.

R ^42' is each independently a C _1-6 alkylene group, preferably a C _1-3 alkylene group, especially a C _2-3 alkylene group.

y1' is an integer from 1 to 30, preferably an integer from 1 to 20, especially an integer from 1 to 10, and more preferably an integer from 2 to 10, such as an integer from 2 to 6, or an integer from 2 to 4. , an integer from 3 to 6 or an integer from 4 to 6.

In one form, R ^33' is hydroxyl.

In other aspects, R ^33' is a C _1-20 alkyl group, especially a C _1-6 alkyl group.

In other forms, R ^33' is R ^41' -(OR ^42' ) _y1' -O _y2' -.

The above q2' are each independently an integer from 0 to 3, and the above r2' are each independently an integer from 0 to 3. The sum of q2' and r2' is 3 in each (CR ^32' _q2' R ^33' _r2' ) unit.

q2' in each (CR ^32' _q2' R ^33' _r2' ) unit is preferably independently an integer from 1 to 3, particularly preferably 2 or 3, more preferably 3.

R ³² is each independently -Z ³ -SiR ³⁴ _n2 R ³⁵ _3-n2 . -Z ³ -SiR ³⁴ _n2 R ³⁵ _3-n2 has the same meaning as described in the above-mentioned R ^32' .

R ³³ is each independently a hydrogen atom, a hydroxyl group or a monovalent organic group. This monovalent organic group is a monovalent organic group excluding the above-mentioned hydrolyzable group.

In R ³³ , the monovalent organic group is preferably a C _1-20 alkyl group or a group represented by R ⁴¹ -(OR ⁴² ) _y1 -O _y2 - (in the formula, R ⁴¹ is a hydrogen atom or C _1-6 Alkyl group, R ⁴² is each independently a C _1-6 alkyl group, y1 is an integer from 1 to 30, y2 is 0 or 1).

In one state, R ⁴¹ is a hydrogen atom.

In other aspects, R ⁴¹ is C _1-6 alkyl, preferably C _1-3 alkyl.

R ⁴² is each independently a C _1-6 alkylene group, preferably a C _1-3 alkylene group, and particularly preferably a C _2-3 alkylene group.

y1 is an integer from 1 to 30, preferably an integer from 1 to 20, especially an integer from 1 to 10, and more preferably an integer from 2 to 10, such as an integer from 2 to 6, an integer from 2 to 4, An integer from 3 to 6 or an integer from 4 to 6.

In one form, R ³³ is hydroxyl.

In other aspects, R ³³ is a C _1-20 alkyl group, especially a C _1-6 alkyl group.

In other forms, R ³³ is R ⁴¹ -(OR ⁴² ) _y1 -O _y2 -.

The above-mentioned p2 is each independently an integer from 0 to 3, q2 is each independently an integer from 0 to 3, and r2 is each independently an integer from 0 to 3. The total of p2, q2 and r2 is 3 in the unit (CR ³¹ _p2 R ³² _q2 R ³³ _r2 ).

In one state, p2 is 0.

In one aspect, p2 can be independently an integer from 1 to 3, an integer from 2 to 3, or 3 in each (CR ³¹ _p2 R ³² _q2 R ³³ _r2 ) unit. In the preferred configuration, p2 is 3.

In one form, q2 in each (CR ³¹ _p2 R ³² _q2 R ³³ _r2 ) unit is independently an integer from 1 to 3, preferably 2 or 3, particularly preferably 3.

In a state, p2 is 0, and q2 in each (CR ³¹ _p2 R ³² _q2 R ³³ _r2 ) unit is independently an integer from 1 to 3, preferably 2 or 3, more preferably 3.

R ^e1 is each independently -Z ³ -SiR ³⁴ _n2 R ³⁵ _3-n2 . -Z ³ -SiR ³⁴ _n2 R ³⁵ _3-n2 has the same meaning as described in the above-mentioned R ^32' .

R ^f1 is each independently a hydrogen atom, a hydroxyl group or a monovalent organic group. This monovalent organic group is a monovalent organic group excluding the above-mentioned hydrolyzable group.

In R ^f1 , the monovalent organic group is preferably a C _1-20 alkyl group or a group represented by R ⁴³ -(OR ⁴⁴ ) _y3 -O _y4 - (in the formula, R ⁴³ is a hydrogen atom or C _1-6 Alkyl group, R ⁴⁴ is each independently a C _1-6 alkylene group, y3 is an integer from 1 to 30, y4 is 0 or 1).

In one state, R ⁴³ is a hydrogen atom.

In other aspects, R ⁴³ is C _1-6 alkyl, preferably C _1-3 alkyl.

R ⁴⁴ is each independently a C _1-6 alkylene group, preferably a C _1-3 alkylene group, especially a C _2-3 alkylene group.

y3 is an integer from 1 to 30, preferably an integer from 1 to 20, especially an integer from 1 to 10, and more preferably an integer from 2 to 10, such as an integer from 2 to 6, an integer from 2 to 4, An integer from 3 to 6 or an integer from 4 to 6.

In one form, R ^f1 is hydroxyl.

In other aspects, R ^f1 is a C _1-20 alkyl group, especially a C _1-6 alkyl group.

In other aspects, R ^f1 is R ⁴³ -(OR ⁴⁴ ) _y3 -O _y4 -.

The above k2 is an integer from 0 to 3 independently, l2 is an integer from 0 to 3 independently, and m2 is an integer from 0 to 3 independently. The sum of k2, l2 and m2 is 3 in each (CR ^d1 _k2 R ^e1 _l2 R ^f1 _m2 ) unit.

In formulas (A1) and (A2), when R ^Si is a group represented by formula (S4), it is preferable that at least 2 are present in the terminal portion of formula (A1) and formula (A2) "Si atom bonded to hydroxyl group or hydrolyzable group".

In one state, when R ^Si is a base represented by formula (S4), n2 is 1 to 3 (preferably 2 or 3, particularly preferably 3) (SiR ³⁴ _n2 R ³⁵ _3-n2 ) There are more than 2 units in each terminal part of formula (A1) and formula (A2), for example, 2 to 27 units, preferably 2 to 9 units, particularly preferably 2 to 6 units, more preferably 2 to 3, preferably 3.

In a preferred aspect, when there is R ^32' in formula (S4), n2 is an integer from 1 to 3, preferably 2, in at least one (preferably all) R ^32' Or 3, preferably 3.

In a preferred aspect, when R ³² is present in formula (S4), n2 is an integer from 1 to 3 in at least one (preferably all) R ³² , preferably 2 or 3. , especially preferably 3.

In a preferred aspect, when there is R ^e1 in formula (S4), in at least one (preferably all) R ^a1 , n2 is an integer from 1 to 3, preferably 2 or 3. , especially preferably 3.

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

In one aspect, formula (S4) contains no siloxane bonds.

R ^g1 and R ^h1 are independently -Z ⁴ -SiR ¹¹ _n1 R ¹² _3-n1 , -Z ⁴ -SiR ^a1 _k1 R ^b1 _l1 R ^c1 _m1 , and -Z ⁴ -CR ^d1 _k2 R ^e1 _l2 R ^f1 _m2 . Here, R ¹¹ , R ¹² , R ^a1 , R ^b2 , R ^c1 , R ^d1 , R ^e1 , R ^f1 , n1, k1, l1, m1, k2, l2 and m2 have the same meanings as above.

In a preferred embodiment, R ^g1 and R ^h1 are independently -Z ⁴ -SiR ¹¹ _n1 R ¹² _3-n1 .

The above-mentioned Z ⁴ are each independently a single bond or a divalent group. The right side of the structure described below as Z ⁴ is bonded to (SiR ¹¹ _n1 R ¹² _3-n1 ).

The above-mentioned divalent group is preferably an oxygen atom, a sulfur atom, NH, CO or a divalent organic group, and particularly preferably an oxygen atom or a divalent organic group.

It is preferable that ^Z4 is independently an oxygen atom or a divalent organic group, and it is particularly preferable that it is a divalent organic group.

In one state, Z ⁴ is an oxygen atom.

In one form, Z ⁴ is a divalent organic radical.

The above Z ⁴ is preferably a C _1-6 alkylene group, -(CH ₂ ) _z5" -O-(CH ₂ ) _z6" -(in the formula, z5" is an integer from 0 to 6, for example, from 1 to 6 Integer, z6" is an integer from 0 to 6, for example, an integer from 1 to 6) or -(CH ₂ ) _z7" -phenyl-(CH ₂ ) _z8" -(where z7" is from 0 to 6 An integer, for example, an integer from 1 to 6, z8" is an integer from 0 to 6, for example, an integer from 1 to 6). The C _1-6 alkylene group can be a straight chain or a branched chain, preferably a straight chain. These groups may be substituted with at least one substituent selected from, for example, a fluorine atom, C _1-6 alkyl group, C _2-6 alkenyl group and C _2-6 alkynyl group, and are preferably unsubstituted.

In a preferred embodiment, Z ⁴ is C _1-6 alkylene or -(CH ₂ ) _z7" -phenylene-(CH ₂ ) _z8" -, preferably -phenylene-(CH ₂ ) _z8" -. When Z ⁴ is the base, the light resistance (especially ultraviolet resistance) can be further improved.

In other preferred embodiments, the above-mentioned Z ⁴ is a C _1-3 alkylene group. In one aspect, Z ⁴ can be -CH ₂ CH ₂ CH ₂ -. In other aspects, Z ⁴ can be -CH ₂ CH ₂ -.

In one aspect, R ^Si is a base represented by formula (S2), (S3), (S4) or (S5). These compounds can form surface treatment layers with high surface smoothness.

In one aspect, R ^Si is a base represented by formula (S1), (S3), (S4) or (S5). Since these compounds have a plurality of hydrolyzable groups at one end, they can adhere strongly to the substrate and form a surface treatment layer with high friction durability.

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

In one aspect, R ^Si is a base represented by formula (S3) or (S4). Since these compounds can have a plurality of hydrolyzable groups branched from one Si atom or C atom at one end, they can form a surface treatment layer with higher friction durability.

In one state, R ^Si is a base represented by formula (S1).

In one state, R ^Si is a base represented by formula (S2).

In one state, R ^Si is a base represented by formula (S3).

In one state, R ^Si is a base represented by formula (S4).

In one state, R ^Si is a base represented by formula (S5).

In formulas ( ^{A1 )} and ( ^A2 ), "Part (R ^Si )" is the connecting base for connection. Therefore, X ^A may be a single bond or any group as long as the compounds represented by formulas (A1) and (A2) can exist stably.

In formula (A1), α1 is an integer from 1 to 9, and β1 is an integer from 1 to 9. These α1 and β1 can change according to the valence of X ^A. The sum of α1 and β1 is the same as the valence of X ^A. For example, when X ^A is a 10-valent base, the sum of α1 and β1 is 10. For example, α1 can be 9 and β1 can be 1, α1 can be 5 and β1 can be 5, or α1 can be 1 and β1 can be 9. In addition, when X ^A is a divalent base, α1 and β1 are 1.

In formula (A2), γ1 is an integer from 1 to 9. γ1 can change according to the valence of X ^A. In other words, γ1 is the value obtained by subtracting 1 from the valence of X ^A.

X ^A are each independently a single bond or a valence base of 2 to 10.

Preferably, X ^A is independently a single bond or an organic group with 2 to 10 valence.

In one state, X ^A contains no siloxane bonds (-Si-O-Si-).

The valence base of 2 to 10 in the above-mentioned X ^A is preferably a valence base of 2 to 8. In one aspect, the 2- to 10-valent base is preferably a 2- to 4-valent base, and particularly preferably a 2-valent base. In other forms, the 2-10 valency base is preferably a 3-8 valency base, particularly preferably a 3-6 valency base.

In one state, X ^A is a single bond or a divalent group, α1 is 1, and β1 is 1.

In one state, X ^A is a single bond or a divalent base, and γ1 is 1.

The above-mentioned divalent group is preferably an oxygen atom, a sulfur atom, NH, CO or a divalent organic group, more preferably an oxygen atom or a divalent organic group, and more preferably a divalent organic group.

In one form, X ^A is a 3- to 6-valent group, preferably a 3 to 6-valent organic group, α1 is 1, and β1 is 2 to 5.

In one form, X ^A is a 3- to 6-valent radical, preferably a 3- to 6-valent organic radical, and γ1 is from 2 to 5.

In one form, X ^A is a trivalent radical, preferably a trivalent organic radical, α1 is 1, and β1 is 2.

In one form, X ^A is a trivalent radical, preferably a trivalent organic radical, and γ1 is 2.

When X ^A is a single bond or a divalent group, formulas (A1) and (A2) are represented by the following formulas (A1') and (A2').

R ^F1 -X ^A -R ^Si (A1')

R ^Si -X ^A -R ^F2 -X ^A -R ^Si (A2')

In one state, X ^A is a single bond.

In other aspects, X ^A is a divalent organic group.

In one form, X ^A can include, for example, a single bond or a divalent organic group represented by the following formula,

-(R ⁵¹ ) _p5 -(X ⁵¹ ) _q5 -

In the formula,

R ⁵¹ represents a single bond, -(CH ₂ ) _s5 -, or o-phenylene, m-phenylene or p-phenylene, preferably -(CH ₂ ) _s5 -,

s5 is an integer from 1 to 20, preferably an integer from 1 to 6, particularly preferably an integer from 1 to 3, and more preferably 1 or 2,

X ⁵¹ means -(X ⁵² ) _l5 -,

X ⁵² is independently selected from -O-, -S-, o-phenylene, m-phenylene or p-phenylene, -C(O)O-, -Si(R ⁵³ ) ₂ -, - (Si(R ⁵³ ) ₂ O) _m5 -Si(R ⁵³ ) ₂ -, -CONR ⁵⁴ -, -O-CONR ⁵⁴ -, -NR ⁵⁴ - and -(CH ₂ ) _n5 - in the group base,

R ⁵³ independently represents phenyl, C _1-6 alkyl or C _1-6 alkoxy, preferably phenyl or C _1-6 alkyl, especially methyl,

R ⁵⁴ each independently represents a hydrogen atom, phenyl or C _1-6 alkyl group (preferably methyl),

Each time m5 appears, it is independently an integer from 1 to 100, preferably an integer from 1 to 20.

Each occurrence of n5 is independently an integer from 1 to 20, preferably an integer from 1 to 6, particularly preferably an integer from 1 to 3,

l5 is an integer from 1 to 10, preferably an integer from 1 to 5, particularly preferably an integer from 1 to 3,

p5 is 0 or 1,

q5 is 0 or 1,

Here, at least one of p5 and q5 is 1, and the order of existence of the repeating units marked with p5 or q5 and enclosed in parentheses is arbitrary,

Its right side is bonded to R ^Si .

Here, X ^A (typically the hydrogen atom of X ^A ) may be substituted with one or more substituents selected from a fluorine atom, a C _1-3 alkyl group, and a C _1-3 fluoroalkyl group. In a preferred form, X ^A is unsubstituted by these groups.

In a preferred aspect, the above-mentioned X ^A are independently -(R ⁵¹ ) _p5 -(X ⁵¹ ) _q5 -R ⁵² -. R ⁵² represents a single bond, -(CH ₂ ) _t5 -, or o-phenylene, m-phenylene or p-phenylene, preferably -(CH ₂ ) _t5 -. t5 is an integer from 1 to 20, preferably an integer from 2 to 6, particularly preferably an integer from 2 to 3. Here, R ⁵² (typically the hydrogen atom of R ⁵² ) may be substituted with one or more substituents selected from the group consisting of a fluorine atom, a C _1-3 alkyl group and a C _1-3 fluoroalkyl group. In a preferred form, R ⁵⁶ is unsubstituted by these groups.

^The _above ^{- mentioned _ _ _ _ _ have the same} _meaning as ^above ); (R ⁵³ ) ₂ O) _m5 -Si(R ⁵³ ) ₂ -, -O-(CH ₂ ) _u5 -(Si(R ⁵³ ) ₂ O) _m5 -Si(R ⁵³ ) ₂ -, -O-(CH ₂ ) _u5 -Si(R ⁵³ ) ₂ -O-Si(R ⁵³ ) ₂ -CH ₂ CH ₂ -Si(R ⁵³ ) ₂ -O-Si(R ⁵³ ) ₂ -, -O-(CH ₂ ) _u5 -Si(OCH ₃ ) ₂ OSi(OCH ₃ ) ₂ -, -CONR ⁵⁴ -(CH ₂ ) _u5 -(Si(R ⁵³ ) ₂ O) _m5 -Si(R ⁵³ ) ₂ -, -CONR ⁵⁴ -(CH ₂ ) _u5 -N(R ⁵⁴ )-, or -CONR ⁵⁴ -(o-phenylene, m-phenylene or p-phenylene)-Si(R ⁵³ ) ₂ -(in the formula, R ⁵³ , R ⁵⁴ and m5 has the same meaning as above, u5 is an integer from 1 to 20, preferably an integer from 2 to 6, especially an integer from 2 to 3);

X ⁵⁴ represents -S-, -C(O)O-, -CONR ⁵⁴ -, -O-CONR ⁵⁴ -, -CONR ⁵⁴ -(CH ₂ ) _u5 -(Si(R ⁵⁴ ) ₂ O) _m5 -Si( R ⁵⁴ ) ₂ -, -CONR ⁵⁴ -(CH ₂ ) _u5 -N(R ⁵⁴ )-, or -CONR ⁵⁴ -(o-phenylene, m-phenylene or p-phenylene)-Si(R ⁵⁴ ) ₂ -(In the formula, each symbol has the same meaning as above).

^Preferably _{, the above -} ^mentioned _{_} ^_ _{_ _} X ⁵⁴ -, or -X ⁵⁴ -(CH ₂ ) _t5 - (in the formula, X ⁵³ , X ⁵⁴ , s5 and t5 have the same meaning as above).

^{Preferably ,} _{the above - mentioned _} ^_ _{_ _} (In the formula, each symbol has the same meaning as above).

In _{a preferred} ^{embodiment ,} _{the above -} ^mentioned CH ₂ ) _t5 -(where,

X ⁵³ is -O-, -CONR ⁵⁴ - or -O-CONR ⁵⁴ -,

R ⁵⁴ each independently represents a hydrogen atom, a phenyl group or a C _1-6 alkyl group,

s5 is an integer from 1 to 20,

t5 is an integer from 1 to 20).

In a preferred embodiment, the above X ^A can be independently -(CH ₂ ) _s5 -O-(CH ₂ ) _t5 --CONR ⁵⁴ -(CH ₂ ) _t5 -(where,

R ⁵⁴ each independently represents a hydrogen atom, a phenyl group or a C _1-6 alkyl group,

s5 is an integer from 1 to 20,

t5 is an integer from 1 to 20).

_{In one form , the above} ^- _mentioned ⁵³ ) ₂ O) _m5 -Si(R ⁵³ ) ₂ -(CH ₂ ) _t5 -, -(CH ₂ ) _s5 -O-(CH ₂ ) _u5 -(Si(R ⁵³ ) ₂ O) _m5 -Si(R ⁵³ ) ₂ -(CH ₂ ) _t5 -, or -(CH ₂ ) _s5 -O-(CH ₂ ) _t5 -Si(R ⁵³ ) ₂ -(CH ₂ ) _u5 -Si(R ⁵³ ) ₂ -(C _v H _2v )-(In the formula, R ⁵³ , m5, s5, t5 and u5 have the same meaning as above, v5 is an integer from 1 to 20, preferably an integer from 2 to 6, especially an integer from 2 to 3 ).

In the above formula, -(C _v H _2v )- can be a straight chain or a branched chain, for example, it can be -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ -, -CH(CH ₃ )-, -CH (CH ₃ )CH ₂ -.

^The _{above - mentioned} . In one form, X ^A is unsubstituted.

In one form, X ^A can each independently be other than -OC _1-6 alkylene group.

In other aspects, X ^A may include, for example, the following groups:

In the formula, R ⁴¹ is independently a hydrogen atom, a phenyl group, an alkyl group having 1 to 6 carbon atoms or a C _1-6 alkoxy group, preferably a methyl group,

D is a group selected from the following formula: -CH ₂ O(CH ₂ ) ₂ -, -CH ₂ O(CH 2 ) ₃ -, -CF ₂ O(CH _{2 ) 3} -, -(CH ₂ ) ₂ - , -(CH ₂ ) ₃ -, -(CH ₂ ) ₄ -, -CONH-(CH ₂ ) ₃ -, -CON(CH ₃ )-(CH ₂ ) ₃ -, -CON(Ph)-(CH ₂ ) _3- (where Ph means phenyl), and

(式中，R⁴²分別獨立地表示氫原子、C_1-6的烷基或C_1-6的烷氧基，較佳為甲基或甲氧基，尤佳為甲基)；

(In the formula, R ⁴² independently represents a hydrogen atom, a C _1-6 alkyl group or a C _1-6 alkoxy group, preferably a methyl group or a methoxy group, especially a methyl group);

E is -(CH ₂ ) _n -(n is an integer from 2 to 6),

D series is bonded to R ^FA1 or R ^FA2 of the molecular backbone, and E series is bonded to R ^Si .

_Specific ^examples _{of the above - mentioned _ _ _ _ 4} -, -CH ₂ O(CH ₂ ) ₅ -, -CH ₂ O(CH ₂ ) ₆ -, -CH ₂ O(CH ₂ ) ₃ Si(CH ₃ ) ₂ OSi(CH ₃ ) ₂ (CH ₂ ) ₂ -, -CH ₂ O(CH ₂ ) ₃ Si(CH ₃ ) ₂ OSi(CH ₃ ) ₂ OSi(CH ₃ ) ₂ (CH ₂ ) ₂ -, -CH ₂ O(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₂ Si(CH ₃ ) ₂ (CH ₂ ) ₂ -, -CH ₂ O(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O ) ₃ Si(CH ₃ ) ₂ (CH ₂ ) ₂ -, -CH ₂ O(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₁₀ Si(CH ₃ ) ₂ (CH ₂ ) ₂ -, -CH ₂ O(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₂₀ Si(CH ₃ ) ₂ (CH ₂ ) ₂ -, -CH ₂ OCF ₂ CHFOCF ₂ -, -CH ₂ OCF ₂ CHFOCF ₂ CF ₂ -, -CH ₂ OCF ₂ CHFOCF ₂ CF ₂ CF ₂ -, -CH ₂ OCH ₂ CF ₂ CF ₂ OCF ₂ -, -CH ₂ OCH ₂ CF ₂ CF ₂ OCF ₂ CF ₂ -, -CH ₂ OCH ₂ CF ₂ CF ₂ OCF ₂ CF ₂ CF ₂ -, -CH ₂ OCH ₂ CF 2 CF _{2 OCF} (CF ₃ )CF ₂ OCF ₂ -, -CH ₂ OCH ₂ CF ₂ CF ₂ OCF(CF ₃ )CF ₂ OCF ₂ CF ₂ -, -CH ₂ OCH ₂ CF ₂ CF ₂ OCF(CF ₃ )CF ₂ OCF ₂ CF ₂ CF ₂ -, -CH ₂ OCH ₂ CHFCF ₂ OCF ₂ -, -CH ₂ OCH ₂ CHFCF ₂ OCF ₂ CF ₂ -, -CH ₂ OCH ₂ CHFCF ₂ OCF ₂ CF ₂ CF ₂ -, -CH ₂ OCH ₂ CHFCF ₂ OCF(CF ₃ )CF ₂ OCF ₂ -, -CH ₂ OCH ₂ CHFCF ₂ OCF(CF ₃ )CF ₂ OCF ₂ CF ₂ -, -CH ₂ OCH ₂ CHFCF ₂ OCF(CF ₃ )CF ₂ OCF ₂ CF ₂ CF ₂ -, -CH ₂ OCF ₂ CHFOCF ₂ CF ₂ CF ₂ -C( O)NH-CH ₂ -, -CH ₂ OCH ₂ (CH ₂ ) ₇ CH ₂ Si(OCH ₃ ) ₂ OSi(OCH ₃ ) ₂ (CH ₂ ) ₂ Si(OCH ₃ ) ₂ OSi(OCH ₃ ) ₂ ( CH ₂ ) ₂ -, -CH ₂ OCH ₂ CH ₂ CH ₂ Si(OCH ₃ ) ₂ OSi(OCH ₃ ) ₂ (CH ₂ ) ₃ -, -CH ₂ OCH ₂ CH ₂ CH ₂ Si(OCH ₂ CH ₃ ) ₂ OSi(OCH ₂ CH ₃ ) ₂ (CH ₂ ) ₃ -, -CH ₂ OCH ₂ CH ₂ CH ₂ Si(OCH ₃ ) ₂ OSi(OCH ₃ ) ₂ (CH ₂ ) ₂ -, -CH ₂ OCH ₂ CH ₂ CH ₂ Si(OCH ₂ CH ₃ ) ₂ OSi(OCH ₂ CH ₃ ) ₂ (CH ₂ ) ₂ -, -(CH ₂ ) ₂ -Si(CH ₃ ) ₂ -(CH ₂ ) ₂ -, -CH ₂ -, -(CH ₂ ) ₂ -, -(CH ₂ ) ₃ -, -(CH ₂ ) ₄ -, -(CH ₂ ) ₅ -, -(CH ₂ ) ₆ -, -CO-, -CONH-, -CONH-CH ₂ -, -CONH-(CH ₂ ) ₂ -, -CONH-(CH ₂ ) ₃ -, -CONH-(CH ₂ ) ₄ -, -CONH-(CH ₂ ) ₅ -, -CONH- (CH ₂ ) ₆ -, -CON(CH ₃ )-CH ₂ -, -CON(CH ₃ )-(CH ₂ ) ₂ -, -CON(CH ₃ )-(CH ₂ ) ₃ -, -CON(CH ₃ )-(CH ₂ ) ₄ -, -CON(CH ₃ )-(CH ₂ ) ₅ -, -CON(CH ₃ )-(CH ₂ ) ₆ -, -CON(Ph)-CH ₂ -(where , Ph means phenyl), -CON(Ph)-(CH ₂ ) ₂ -(where Ph means phenyl), -CON(Ph)-(CH ₂ ) ₃ -(where Ph means phenyl), -CON(Ph)-(CH ₂ ) ₄ -(where Ph means phenyl), -CON(Ph)-(CH ₂ ) ₅ -(where Ph means phenyl), -CON(Ph)-(CH ₂ ) ₆ -(where Ph means phenyl), -CONH-(CH ₂ ) ₂ NH(CH ₂ ) ₃ -, -CONH-(CH ₂ ) ₆ NH(CH ₂ ) ₃ -, -CH ₂ O-CONH-(CH ₂ ) ₃ -, -CH ₂ O-CONH-(CH ₂ ) ₆ -, -S-(CH ₂ ) ₃ -, -(CH ₂ ) ₂ S (CH ₂ ) ₃ -, -CONH-(CH ₂ ) ₃ Si(CH ₃ ) ₂ OSi(CH ₃ ) ₂ (CH ₂ ) ₂ -, -CONH-(CH ₂ ) ₃ Si(CH ₃ ) ₂ OSi( CH ₃ ) ₂ OSi(CH ₃ ) ₂ (CH ₂ ) ₂ -, -CONH-(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₂ Si(CH ₃ ) ₂ (CH ₂ ) ₂ -, -CONH-(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₃ Si(CH ₃ ) ₂ (CH ₂ ) ₂ -, -CONH-(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₁₀ Si(CH ₃ ) ₂ (CH ₂ ) ₂ -, -CONH-(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₂₀ Si(CH ₃ ) ₂ (CH ₂ ) ₂ -, -C(O)O-(CH ₂ ) ₃ -, -C(O)O-(CH ₂ ) ₆ -, -CH ₂ -O-(CH ₂ ) ₃ -Si(CH ₃ ) ₂ -(CH ₂ ) ₂ -Si(CH ₃ ) ₂ -(CH ₂ ) ₂ -, -CH ₂ -O-(CH ₂ ) ₃ -Si( CH ₃ ) ₂ -(CH ₂ ) ₂ -Si(CH ₃ ) ₂ -CH(CH ₃ )-, -CH ₂ -O-(CH ₂ ) ₃ -Si(CH ₃ ) ₂ -(CH ₂ ) ₂ - Si(CH ₃ ) ₂ -(CH ₂ ) ₃ -, -CH ₂ -O-(CH ₂ ) ₃ -Si(CH ₃ ) ₂ -(CH ₂ ) ₂ -Si(CH ₃ ) ₂ -CH(CH ₃ )-CH ₂ -, -OCH ₂ -, -O(CH ₂ ) ₃ -, -OCFHCF ₂ -, and

等。

wait.

In other aspects, X ^A are each independently a base represented by the formula: -(R ¹⁶ ) _x1 -(CFR ¹⁷ ) _y1 -(CH ₂ ) _z1 -. In the formula, x1, y1 and z1 are each independently an integer from 0 to 10, and the sum of x1, y1 and z1 is more than 1. The order of existence of the repeating units enclosed in brackets is arbitrary in the formula.

In the above formula, R ¹⁶ is independently an oxygen atom, a phenyl group, a carbazolyl group (Carbazolylene), -NR ¹⁸ - (in the formula, R ¹⁸ represents a hydrogen atom or an organic group) or a divalent organic group. R ¹⁸ is preferably an oxygen atom or a divalent polar group.

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

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

The left side of each of the above X ^A formulas is bonded to R ^FA1 or R ^FA2 , and the right side is bonded to R ^Si .

In other aspects, examples of X ^A include the following radicals:

In the formula,

R ⁴¹ is independently a hydrogen atom, a phenyl group, an alkyl group having 1 to 6 carbon atoms or a C _1-6 alkoxy group, preferably a methyl group,

In each X ^A group, any number of T is the following group bonded to "R ^FA1 or R ^FA2 of the molecular backbone": -CH ₂ O(CH ₂ ) ₂ -, -CH ₂ O(CH ₂ ) ₃ -, -CF ₂ O(CH ₂ ) ₃ -, -(CH ₂ ) ₂ -, -(CH ₂ ) ₃ -, -(CH ₂ ) ₄ -, -CONH-(CH ₂ ) ₃ -, - CON(CH ₃ )-(CH ₂ ) ₃ -, -CON(Ph)-(CH ₂ ) ₃ - (where Ph means phenyl), or

In the formula, R ⁴² independently represents a hydrogen atom, a C _1-6 alkyl group or a C _1-6 alkoxy group, preferably a methyl group or a methoxy group, especially a methyl group;

In the case where several other T's are bonded to R ^Si in the main chain of the molecule, the remaining T's are independently methyl, phenyl, C _1-6 alkoxy or radical trapping groups or UV absorbing base.

The radical trapping group is not particularly limited as long as it can trap "radicals generated by light irradiation". Examples include benzophenones, benzotriazoles, benzyl esters, and willow esters. Residual groups of acid phenyl esters, crotonic acids, malonates, organic acrylates, hindered amines, hindered phenols or triazines.

酮(Benzoxazinone)類、苯并

唑(Benzoxazole)類的殘餘基。 The ultraviolet absorbing group is not particularly limited as long as it can absorb ultraviolet rays, and examples thereof include benzotriazoles, hydroxydiphenylketones, substituted and unsubstituted esters of benzyl acid or salicylic acid compounds, and acrylic acid. Esters or cinnamic acid alkoxyesters, oxamides, oxanilides, benzo

Ketones (Benzoxazinone), benzo

Residual groups of Benzoxazoles.

In a preferred embodiment, preferred free radical trapping groups or ultraviolet absorbing groups include the following structural formulas.

In this aspect, X ^A can independently range from 3 to 10 valence bases.

In other aspects, examples of X ^A include the following radicals:

In the formula, R ²⁵ , R ²⁶ and R ²⁷ are independently 2 to 6 valent organic groups,

R ²⁵ is bonded to at least one R ^FA1 or R ^FA2 , and R ²⁶ and R ²⁷ are bonded to at least one R ^Si respectively.

In one form, R ²⁵ is a single bond, C _1-20 alkylene group, C _3-20 cycloalkylene group, C _5-20 aryl group, -R ⁵⁷ -X ⁵⁸ -R ⁵⁹ -, -X ⁵⁸ -R ⁵⁹ - or -R ⁵⁷ -X ⁵⁸ -. The above-mentioned R ⁵⁷ and R ⁵⁹ are each independently a single bond, a C _1-20 alkylene group, _{a C 3-20 cycloalkylene} group or a C _5-20 aryl group. The above X ⁵⁸ is -O-, -S-, -CO-, -O-CO- or -COO-.

In one aspect, R ²⁶ and R ²⁷ are each independently a hydrocarbon, or a group having at least 1 atom selected from N, O and S in the terminal or 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 is each independently a single bond or an alkyl group having 1 to 6 carbon atoms, preferably an alkyl group having 1 to 6 carbon atoms. R ³⁷ is N, O or S, preferably N or O. R ³⁸ is -R ⁴⁵ -R ⁴⁶ -R ⁴⁵ -, -R ⁴⁶ -R ⁴⁵ - or -R ⁴⁵ -R ⁴⁶ -. Here, R ⁴⁵ is each independently an alkyl group having 1 to 6 carbon atoms. R ⁴⁶ is N, O or S, preferably O.

In this aspect, X ^A can independently range from 3 to 10 valence bases.

In other aspects, X ^A is a base represented by the following formula,

In the formula, X ^a is a single bond or a divalent organic group.

The above-mentioned X ^a is a single bond or a divalent linking group directly bonded to the isocyanuric acid ring. ^Preferably , A single bond, an alkylene group with 1 to 10 carbon atoms, or a divalent bond with 1 to 10 carbon atoms "at least one bond selected from the group consisting of an ether bond, an ester bond, an amide bond, and a sulfide bond" hydrocarbyl.

X ^a is more preferably a base represented by the following formula,

-(CX ¹²¹ X ¹²² ) _x1 -(X ^a1 ) _y1 -(CX ¹²³ X ¹²⁴ ) _z1 -

In _the ^{formula ,} X ^{121 to}

The above X ^a1 is -C(=O)NH-, -NHC(=O)-, -O-, -C(=O)O-, -OC(=O)-, -OC(=O)O- or -NHC(=O)NH-(the left side of each bond is bonded to CX ¹²¹ X ¹²² ),

x1 is an integer from 0 to 10, y1 is 0 or 1, and z1 is an integer from 1 to 10.

The above-mentioned X ^a1 is preferably -O- or -C(=O)O-.

The above-mentioned X ^a is particularly preferably a base represented by the following formula,

-(CF ₂ ) _m11 -(CH ₂ ) _m12 -O-(CH ₂ ) _m13 -(where m11 is an integer from 1 to 3, m12 is an integer from 1 to 3, and m13 is an integer from 1 to 3); or

The basis represented by the following formula

-(CF ₂ ) _m14 -(CH ₂ ) _m15 -O-CH ₂ CH(OH)-(CH ₂ ) _m16 -(In the formula, m14 is an integer from 1 to 3, m15 is an integer from 1 to 3, and m16 is an integer from 1 to 3); or

The basis represented by the following formula

-(CF ₂ ) _m17 -(CH ₂ ) _m18 -(where m17 is an integer from 1 to 3, m18 is an integer from 1 to 3); or

The basis represented by the following formula

-(CF ₂ ) _m19 -(CH ₂ ) _m20 -O-CH ₂ CH(OSi(OCH ₃ ) ₃ )-(CH ₂ ) _m21 -(In the formula, m19 is an integer from 1 to 3, m20 is 1 to 3 an integer, m21 is an integer from 1 to 3); or

The basis represented by the following formula

-(CH ₂ ) _m22 -(in the formula, m22 is an integer from 1 to 3).

_{The above} ^- _{mentioned _ _ _ _ _ _ _} -, -CO-O-CH ₂ -CH(OH)-CH ₂ -, -(CF ₂ ) _n5 -(n5 is an integer from 0 to 4), -(CF ₂ ) _n5 -(CH ₂ ) _m5 -( n5 and m5 are each independently an integer from 0 to 4), -CF ₂ CF ₂ CH ₂ OCH ₂ CH(OH)CH ₂ -, -CF ₂ CF ₂ CH ₂ OCH ₂ CH(OSi(OCH ₃ ) ₃ )CH ₂ - Wait.

In this aspect, X ^A can be independently a 2- or 3-valent base.

In one aspect, the silane compound containing a fluoropolyether group represented by formula (A1) or formula (A2) does not contain a siloxane bond (-Si-O-Si-).

The fluoropolyether group-containing silane compound represented by formula (A1) or formula (A2) is not particularly limited, and may have a number average molecular weight of 5×10 ² to 1×10 ⁵ . From the viewpoint of friction durability, those having a number average molecular weight of 2,000 to 32,000 (especially 2,500 to 12,000) within this range are preferred. The number average molecular weight of the silane compound containing a fluoropolyether group is a value measured by ¹⁹ F-NMR.

In one aspect, the number average molecular weight of the fluoropolyether group-containing silane compound represented by formula (A1) or formula (A2) is 500 to 30,000, preferably 1,000 to 20,000, particularly preferably 2,000 to 15,000, and more preferably Preferably, it is 2,000 to 10,000, for example, it can be 3,000 to 6,000.

In other aspects, the number average molecular weight of the silane compound containing a fluoropolyether group represented by formula (A1) or formula (A2) is 4,000 to 30,000, preferably 5,000 to 10,000, particularly preferably 6,000 to 10,000.

In one aspect, in the surface treatment agent of the present disclosure, the silane compound containing a fluoropolyether group is a compound represented by formula (A1).

In other aspects, in the surface treatment agent of the present disclosure, the silane compound containing a fluoropolyether group is a compound represented by formula (A2).

In other aspects, in the surface treatment agent of the present disclosure, the silane compound containing a fluoropolyether group is a compound represented by formula (A1) and a compound represented by formula (A2).

In other aspects, in the surface treatment agent of the present disclosure, the compound represented by formula (A1) and the compound represented by formula (A2) may be separately or partially condensed with each other. That is, between the compounds represented by formula (A1), between the compounds represented by formula (A2), or between the compound represented by formula (A1) and the compound represented by formula (A2), there can be It exists in a state of earth condensation. Therefore, the surface treatment agent of the present disclosure may contain: a partial condensate of the compound represented by formula (A1), a partial condensate of the compound represented by formula (A2), or a compound represented by formula (A1) and formula (A2) ) is a partial condensate of the compound represented by.

In the surface treatment agent of the present disclosure, the compound represented by the formula (A2) is preferably 0.1 mol% or more and 35 mol% relative to the total of the compound represented by the formula (A1) and the compound represented by the formula (A2). the following. The lower limit of the content of the compound represented by formula (A2) is preferably 0.1 mol%, particularly preferably 0.2 mol%, relative to the total of the compound represented by formula (A1) and the compound represented by formula (A2). More preferably, it is 0.5 mol%, still more preferably, it is 1 mol%, particularly preferably, it is 2 mol%, especially 5 mol%. The upper limit of the content of the compound represented by formula (A2) is preferably 35 mol%, particularly preferably 30 mol%, relative to the total of the compound represented by formula (A1) and the compound represented by formula (A2). More preferably, it is 20 mol%, and still more preferably, it is 15 mol% or 10 mol%. The compound represented by formula (A2) is preferably 0.1 mol% or more and 30 mol% or less, particularly preferably 0.1 mol%, relative to the total of the compound represented by formula (A1) and the compound represented by formula (A2). % or more and 20 mol% or less, more preferably 0.2 mol% or more and 10 mol% or less, still more preferably 0.5 mol% or more and 10 mol% or less, particularly preferably 1 mol% or more and 10 mol% or less , for example, 2 mol% or more and 10 mol% or less or 5 mol% or more and 10 mol% or less. By setting the compound represented by formula (A2) within this range, friction durability can be further improved.

The compound represented by the above formula (A1) or (A2) can be obtained, for example, by the method described in the above-mentioned Patent Document 1, Japanese International Publication No. 2006/10708, Japanese Patent Application Laid-Open No. 2019-183160, and the like.

(alkyl amide compound containing fluoropolyether group)

The above-mentioned alkylamide compound containing a fluoropolyether group is a compound containing a "amide group having an alkyl group" and a "fluoropolyether group".

In the surface treatment agent of the present disclosure, in addition to the silane compound containing a fluoropolyether group as the component (A), the friction is improved by containing an alkylamide compound containing a fluoropolyether group as the component (B). Durability further improved.

In one aspect, the above-mentioned alkylamide compound containing a fluoropolyether group is a compound represented by the following formula (B1) or (B2),

R ^FB1 -X ^B -CONR ^B1 R ^B2 (B1)

R ^B2 R ^B1 NOC-X ^B -R ^FB2 -X ^B -CONR ^B1 R ^B2 (B2)

In the formula,

R ^FB1 is Rf ¹ -R ^F -O _q -,

R ^FB2 is -Rf ² _p -R ^F -O _q -,

R ^F are independently divalent fluoropolyether groups,

Rf ¹ can be a C _1-16 alkyl group substituted by more than 1 fluorine atom,

Rf ² can be a C _1-6 alkylene group substituted by more than 1 fluorine atom,

p is 0 or 1,

q is independently 0 or 1,

X ^B is independently a single bond or a divalent base,

R ^B1 are each independently C _1-6 alkyl,

R ^B2 are each independently a C _1-6 alkyl group or a hydrogen atom.

In formula (B1), R ^FB1 is Rf ¹ -R ^F -O _q -.

In formula (B2), R ^FB2 is -Rf ² _p -R ^F -O _q -.

R ^FB1 and R ^FB2 in formulas (B1) and (B2) respectively correspond to R ^FA1 and R ^FA2 in formulas (A1) and (A2). Rf ¹ -R ^F -O _q -and -Rf ² _p -R ^F -O _q - in formulas (B1) and (B2) and Rf ¹ -R ^F -O _q in formulas (A1) and (A2) - and -Rf ² _p -R ^F -O _q - have the same meaning and may have the same form. Among the surface treatment agents, R ^FB1 and R ^FA1 and R ^FA2 and R ^FB2 may be the same or different, respectively.

In formulas (B1) and (B2), X ^B is independently a single bond or a divalent group. Among the following, the left side of X ^B is bonded to R ^FB1 or R ^FB2 .

The above-mentioned divalent group is preferably an oxygen atom, a sulfur atom, NH, CO or a divalent organic group, more preferably an oxygen atom or a divalent organic group, and particularly preferably a divalent organic group.

In one state, X ^B are independently a single bond or a base represented by -(R ⁶⁷ ) _b1 -(R ⁶⁸ ) _b2 -, (in the formula,

R ⁶⁷ are each independently C _1-6 alkylene group,

R ⁶⁸ is independently an oxygen atom, a sulfur atom, CO, NR ⁶⁹ , CONR ⁶⁹ , NR ⁶⁹ CO or C _6-12 aryl group,

R ⁶⁹ are each independently a hydrogen atom or a C _1-6 alkyl group,

b1 is an integer from 0 to 6,

b2 is an integer from 0 to 6,

The total of b1 and b2 is 1 or more,

The order of existence of each repeating unit marked b1 or b2 and enclosed in parentheses is arbitrary in the formula).

X ^B are preferably each independently a single bond, C _1-6 alkylene group or -R ⁶⁴ -OR ⁶⁵ -. R ⁶⁴ is a single bond or C _1-6 alkylene group; R ⁶⁵ is a single bond or C _1-6 alkylene group.

In one form, X ^B are each independently a single bond or a C _1-6 alkylene group.

In other forms, X ^B are independently single bonds.

In other aspects, X ^B are each independently a C _1-6 alkylene group.

_{The above} ^- _mentioned . In one form, X ^B is unsubstituted.

In formulas (B1) and (B2), R ^B1 is each independently a C _1-6 alkyl group, and R ^B2 is each independently a C _1-6 alkyl group or a hydrogen atom.

The C _1-6 alkyl group in the above R ^B1 may be a straight chain or a branched chain. In one form, the C _1-6 alkyl group in R ^B1 is a straight chain. In other aspects, the C _1-6 alkyl group in R ^B1 is a branched chain.

The C _1-6 alkyl group in the above R ^B1 is preferably a C _1-3 alkyl group, especially a C _1-2 alkyl group, and more preferably a methyl group.

In one state, R ^B2 is a hydrogen atom.

In other aspects, R ^B2 is C _1-6 alkyl.

The C _1-6 alkyl group in the above R ^B2 may be a straight chain or a branched chain. In one form, the C _1-6 alkyl group in R ^B2 is straight chain. In other aspects, the C _1-6 alkyl group in R ^B2 is a branched chain.

The C _1-6 alkyl group in the above R ^B2 is preferably a C _1-3 alkyl group, especially a C _1-2 alkyl group, and more preferably a methyl group.

The number average molecular weight of the fluoropolyether group-containing alkylamide compound represented by formula (B1) or (B2) is not particularly limited, and may have a number average molecular weight of 5×10 ² to 1×10 ⁵ . Within this range, those having a number average molecular weight of 1,000 to 20,000 (especially 2,000 to 10,000) are preferred from the viewpoint of friction durability. The number average molecular weight of the alkylamide compound containing a fluoropolyether group is a value measured by ¹⁹ F-NMR.

The alkylamide compound containing a fluoropolyether group represented by the above formulas (B1) and (B2) can be synthesized, for example, by the following method.

The compound represented by the following formula (1a) or (2a),

^RFB1 - ^XB -COOH(1a)

HOOC-X ^B -R ^FB2 -X ^B -COOH (2a)

[In the formula, each symbol has the same meaning as above]

React with a halogenating agent to obtain a compound represented by the following formula (1b) or (2b),

^RFB1 - ^XB - ^CORH (1b)

R ^H OC-X ^B -R ^FB2 -X ^B -COR ^H (2b)

[In the formula,

R ^H is a halogen atom, preferably a chlorine atom,

R ^FB1 , R ^FB2 and X ^B have the same meaning as above].

Examples of the halogenating agent include Thionyl Chloride, OXalyl Chloride, and the like.

Next, the compound represented by formula (1b) or (2b) obtained above is reacted with a compound represented by the following formula:

HNR ^B1 R ^B2 (in the formula, each symbol has the same meaning as above).

In one aspect, in the surface treatment agent of the present disclosure, the alkylamide compound containing a fluoropolyether group is a compound represented by formula (B1).

In other aspects, in the surface treatment agent of the present disclosure, the alkylamide compound containing a fluoropolyether group is a compound represented by formula (B2).

In other aspects, in the surface treatment agent of the present disclosure, the alkylamide compound containing a fluoropolyether group is a compound represented by formula (B1) and a compound represented by formula (B2).

In other aspects, in the surface treatment agent of the present disclosure, the compound represented by formula (B1) and the compound represented by formula (B2) may be separately or partially condensed with each other. That is, between the compounds represented by formula (B1), between the compounds represented by formula (B2), or between the compounds represented by formula (B1) and the compound represented by formula (B2), it may also be between the compounds represented by formula (B1) and the compound represented by formula (B2). Exists in a partially condensed state. Therefore, the surface treatment agent of the present disclosure may contain: a partial condensate of the compound represented by formula (B1), a partial condensate of the compound represented by formula (B2), or a compound represented by formula (B1) and formula ( B2) Partial condensate of the compound represented.

The content of component (B) is preferably 1 mass% or more, more preferably 5 mass% or more, and more preferably 10 mass% or more based on the total of component (A) and component (B). In addition, the content of component (B) is preferably 70 mass% or less, more preferably 60 mass% or less, more preferably 35 mass% or less, based on the total of component (A) and component (B), and still more preferably 25% by mass or less, preferably 20% by mass or less. By containing component (B) in the above-mentioned amount, a surface-treated layer having excellent friction durability can be obtained.

In one aspect, the content of component (B) is preferably 1 to 70 mass%, more preferably 1 to 50 mass%, more preferably 5 to 50 mass%, based on the total of component (A) and component (B). %.

In the surface treatment agent, the total concentration of component (A) and component (B) is preferably 0.1 to 99.9 mass%, more preferably 1.0 to 50 mass%, more preferably 5.0 to 30 mass%, and more preferably Preferably, it is 5.0 to 15% by mass.

In the surface treatment agent of the present disclosure, component (A) and component (B) may also exist in a partially condensed state. That is, the surface treatment agent of the present disclosure may contain a partial condensate of component (A) and component (B).

(other ingredients)

The surface treatment agent of the present disclosure may contain: solvents, alcohols, (non-reactive) fluoropolyether compounds that can be understood as fluorine-containing oils, preferably perfluoropolyether compounds (hereinafter collectively referred to as "fluorine-containing oils") , which can be understood as (non-reactive) polysilicone compounds (hereinafter referred to as "polysilicone oil"), compatibilizers, catalysts, surfactants, polymerization inhibitors, sensitizers, etc. .

烷(Dioxane)等環狀醚類；N,N-二甲基甲醯胺、N,N-二甲基乙醯胺等醯胺類；甲基溶纖劑、溶纖劑、異丙基溶纖劑、丁基溶纖劑、二 乙二醇單甲醚等醚醇類；二乙二醇單乙醚乙酸酯；1,1,2-三氯-1,2,2-三氟乙烷、1,2-二氯-1,1,2,2-四氟乙烷、二甲基亞碸、1,1-二氯-1,2,2,3,3-五氟丙烷(HCFC 225)、1,1,2,2,3,3,4-七氟環戊烷(例如Zeorora H)、全氟丁基甲醚(C₄F₉OCH₃)(例如HFE7100)、全氟丁基乙醚(C₄F₉OC₂H₅)(例HFE 7200)、全氟己基甲醚(C₂F₅CF(OCH₃)C₃F₇)(例如HFE7300)、CF₃CH₂OH、CF₃CF₂CH₂OH、(CF₃)₂CHOH、1,1,2,3,3,3-六氟丙基甲醚(CF₃CFHCF₂OCH₃)(HFE-356mec)等含氟溶劑等。或是此等之2種以上的混合溶劑等。 Examples of the above-mentioned solvent include aliphatic hydrocarbons such as hexane, cyclohexane, heptane, octane, nonane, decane, undecane, dodecane, and mineral spirits; benzene, toluene, xylene, naphthalene, etc. , solvent oil and other aromatic hydrocarbons; methyl acetate, ethyl acetate, propyl acetate, n-butyl acetate, isopropyl acetate, isobutyl acetate, cellosolve acetate, propylene glycol methyl ether acetate, card acetate Bitol, diethyl oxalate, ethyl pyruvate, ethyl butyrate-2-hydroxy ester, ethyl acetyl acetate, amyl acetate, methyl lactate, ethyl lactate, methyl 3-methoxypropionate , ethyl 3-methoxypropionate, methyl 2-hydroxyisobutyrate, ethyl 2-hydroxyisobutyrate and other esters; acetone, butanone, methyl isobutyl ketone, 2-hexanone, cyclohexanone, etc. Ketones such as hexanone, methylamine ketone, 2-heptanone; ethyl cellosolve, methyl cellosolve, methyl cellosolve acetate, ethyl cellosolve acetate, propylene glycol monomethyl ether, Propylene glycol monoethyl ether, propylene 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 and other glycol ethers; Methanol, ethanol, isopropanol, n-butanol, isobutanol, tert-butanol, sec-butanol, 3-pentanol, octanol, 3-methyl-3-methoxybutanol, tert-pentanol alcohols such as alcohol; glycols such as ethylene glycol and propylene glycol; tetrahydrofuran (Tetrahydrofuran), tetrahydropyran (Tetrahydropyran), diols

Dioxane and other cyclic ethers; N,N-dimethylformamide, N,N-dimethylacetamide and other amides; methyl cellosolve, cellosolve, isopropyl Cellulose agent, butyl cellosolve, diethylene glycol monomethyl ether and other ether alcohols; diethylene glycol monoethyl ether acetate; 1,1,2-trichloro-1,2,2-trifluoroethane, 1 ,2-Dichloro-1,1,2,2-tetrafluoroethane, dimethylstyrene, 1,1-dichloro-1,2,2,3,3-pentafluoropropane (HCFC 225), 1,1,2,2,3,3,4-Heptafluorocyclopentane (such as Zeorora H), perfluorobutyl methyl ether (C ₄ F ₉ OCH ₃ ) (such as HFE7100), perfluorobutyl ethyl ether (C ₄ F ₉ OC ₂ H ₅ ) (e.g. HFE 7200), perfluorohexyl methyl ether (C ₂ F ₅ CF (OCH ₃ ) C ₃ F ₇ ) (e.g. HFE7300), CF ₃ CH ₂ OH, CF ₃ CF ₂ CH ₂ Fluorine-containing solvents such as OH, (CF ₃ ) ₂ CHOH, 1,1,2,3,3,3-hexafluoropropyl methyl ether (CF ₃ CFHCF ₂ OCH ₃ ) (HFE-356mec), etc. Or a mixed solvent of two or more of these.

The above-mentioned alcohols are, for example, alcohols having 1 to 6 carbon atoms which may be substituted by one or more fluorine atoms. Examples include methanol, ethanol, isopropyl alcohol, tert-butanol, CF ₃ CH ₂ OH, and CF ₃ CF. ₂ CH ₂ OH, (CF ₃ ) ₂ CHOH, H(CF ₂ CF ₂ )CH ₂ OH, H(CF ₂ CF ₂ ) ₂ CH ₂ OH, H(CF ₂ CF ₂ ) ₃ CH ₂ OH. By adding these alcohols to the surface treatment agent, the stability of the surface treatment agent is improved, and the compatibility between component (A) and component (B) and the solvent is improved.

In a preferred aspect, the surface treatment agent of the present disclosure contains a solvent and alcohol.

The alcohol content is preferably 0.1 to 50% by mass, more preferably 0.5 to 30% by mass, more preferably 1.0 to 20% by mass, and still more preferably 2.0 to 10% by mass relative to the total of the solvent and alcohol.

The fluorinated oil is not particularly limited, and examples thereof include compounds represented by the following general formula (3) (perfluoropolyether compounds).

Rf ⁵ -(OC ₄ F ₈ ) _a' -(OC ₃ F ₆ ) _b' -(OC ₂ F ₄ ) _c' -(OCF ₂ ) _d' -Rf ⁶ ‧‧‧(3)

In the formula, Rf ⁵ represents an alkyl group having 1 to 16 carbon atoms (preferably C _1-16 perfluoroalkyl group) which can be substituted by more than 1 fluorine atom, and Rf ⁶ represents an alkyl group having 1 to 16 carbon atoms which can be substituted by more than 1 fluorine atom. The substituted alkyl group having 1 to 16 carbon atoms (preferably C _1-16 perfluoroalkyl group), fluorine atom or hydrogen atom, preferably Rf ⁵ and Rf ⁶ are each independently C _1-3 perfluoroalkyl group.

a', b', c' and d' respectively represent the number of four repeating units of perfluoropolyether constituting the main skeleton of the polymer, and are independently integers from 0 to 300. a', b', c The sum of ' and d' is at least 1, preferably 1 to 300, particularly preferably 20 to 300. The order of existence of each repeating unit marked with the subscript a', b', c' or d' and enclosed in parentheses is arbitrary in the formula. In these repeating units, -(OC ₄ F ₈ )- is -(OCF ₂ CF ₂ CF ₂ CF ₂ )-, -(OCF(CF ₃ )CF ₂ CF ₂ )-, -(OCF ₂ CF(CF ₃ )CF ₂ )-,-(OCF ₂ CF ₂ CF(CF ₃ ))-,-(OC(CF ₃ ) ₂ CF ₂ )-,-(OCF ₂ C(CF ₃ ) ₂ )-,-(OCF Any one of (CF ₃ )CF(CF ₃ ))-, -(OCF(C ₂ F ₅ )CF ₂ )- and (OCF ₂ CF(C ₂ F ₄ ))-, preferably -(OCF ₂ CF ₂ CF ₂ CF ₂ )-. -(OC ₃ F ₆ )- is any one of -(OCF ₂ CF ₂ CF ₂ )-, -(OCF(CF ₃ )CF ₂ )- and (OCF ₂ CF(CF ₃ ))-, preferably -(OCF ₂ CF ₂ CF ₂ )-. -(OC ₂ F ₄ )- is any one of -(OCF ₂ CF ₂ )- and (OCF(CF ₃ ))-, and preferably -(OCF ₂ CF ₂ )-.

Examples of the perfluoropolyether compound represented by the above general formula (3) include compounds represented by any one of the following general formulas (3a) and (3b) (which may be one type or a mixture of two or more types).

Rf ⁵ -(OCF ₂ CF ₂ CF ₂ ) _b" -Rf ⁶ ‧‧‧(3a)

Rf ⁵ -(OCF ₂ CF ₂ CF ₂ CF ₂ ) _a" -(OCF ₂ CF ₂ CF ₂ ) _b" -(OCF ₂ CF ₂ ) _c" -(OCF ₂ ) _d" -Rf ⁶ ‧‧‧(3b )

In this equation, Rf ⁵ and Rf ⁶ are as explained above; in formula (3a), b" is an integer from 1 to 100; in formula (3b), a" and b" are independently 0 or more Integers below 30, c" and d" are independently integers above 1 and below 300. The subscripts a", b", c", d" are marked and the order of existence of each repeating unit enclosed in parentheses is in the formula to be arbitrary.

In addition, from other viewpoints, the fluorine-containing oil can be a compound represented by the general formula Rf ³ -F (in the formula, Rf ³ is a C _5-16 perfluoroalkyl group). In addition, it may also be a chlorotrifluoroethylene oligomer.

The above-mentioned fluorine-containing oil may have an average molecular weight of 500 to 10,000. The molecular weight of fluorinated oil can be determined using GPC.

The surface treatment agent of the present disclosure may contain, for example, 0 to 50 mass % (preferably 0 to 30 mass %, particularly preferably 0 to 5 mass %) fluorine-containing oil. In one aspect, the surface treatment agent of the present disclosure contains substantially no fluorine-containing oil. The term "substantially does not contain fluorinated oil" means that it does not contain fluorinated oil at all or contains a very small amount of fluorinated oil.

In one aspect, the "average molecular weight of the fluorine-containing oil" can be set to be greater than the "average molecular weight of the silane compound containing the fluoropolyether group". By setting the average molecular weight to such a value, particularly when the surface treatment layer is formed by vacuum evaporation, more excellent friction durability and surface smoothness can be obtained.

In one aspect, the "average molecular weight of the fluorine-containing oil" may be smaller than the "average molecular weight of the silane compound containing the fluoropolyether group". By setting the average molecular weight to such an average molecular weight, it is possible to form a cured product having high friction durability and high surface smoothness while suppressing a decrease in transparency of the surface treatment layer obtained from the compound.

Fluorine-containing oil is beneficial to improving the surface smoothness of the layer formed by the surface treatment agent of the present disclosure.

As the polysiloxane oil, for example, a linear or cyclic polysiloxane oil having a siloxane bond number of 2,000 or less can be used. Straight-chain polysilicone oil can be so-called straight silicone oil and modified polysilicone oil. Examples of direct polysilicone oil include dimethyl polysilicone oil, methylphenyl polysilicone oil, and methyl hydrogen polysilicone oil. Examples of modified polysilicone oil include those that modify direct polysilicone oil through alkyl groups, aralkyl groups, polyethers, higher fatty acid esters, fluoroalkyl groups, amine groups, epoxy groups, carboxyl groups, alcohols, etc. . Examples of the cyclic polysiloxane oil include cyclic dimethylsiloxane oil.

In the surface treatment agent of the present disclosure, relative to a total of 100 parts by mass of the silane compound containing a fluoropolyether group of the present disclosure (in the case of two or more cases, the total of these, the same applies below), the polysiloxane The oil can be contained, for example, in an amount of 0 to 300 parts by mass, preferably 50 to 200 parts by mass.

Polysilicone oil is beneficial to improve the surface smoothness of the surface treatment layer.

Examples of the above-mentioned compatibilizing agents include: 2,2,2-trifluoroethanol, 2,2,3,3,3-pentafluoro-1-propanol or 2,2,3,3,4,4,5,5 - Fluorine-substituted alcohols such as octafluoro-1-pentanol, preferably fluorine-substituted alcohols with terminal CF ₂ H; fluorine-substituted aryl groups such as 1,3-bis(trifluoromethyl)benzene, Preferred are fluorine-substituted benzene and the like.

Examples of the above catalyst include acids (such as acetic acid, trifluoroacetic acid, etc.), bases (such as ammonia, triethylamine, diethylamine, etc.), transition metals (such as Ti, Ni, Sn, etc.).

The catalyst promotes the hydrolysis and dehydration condensation of the silane compound containing the fluoropolyether group, thereby promoting the formation of the layer formed by the surface treatment agent of the present disclosure.

As for other components, in addition to the above, examples include: tetraethoxysilane, methyltrimethoxysilane, 3-aminopropyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, Methyltriacetoxysilane, etc.

The surface treatment agent of the present disclosure can be impregnated with porous materials (such as porous ceramic materials) or metal fibers (such as steel wool) that are solidified into cotton-like materials and formed into particles. The particles can be used, for example, in vacuum evaporation.

In addition to the above components, the surface treatment agent of the present disclosure may also contain trace amounts of impurities such as Pt, Rh, Ru, 1,3-divinyltetramethyldisiloxane, triphenylphosphine, NaCl, KCl, silane condensates, etc.

(thing)

The following describes the items disclosed.

The article of the present disclosure includes: a base material; and a layer (surface treatment layer) formed on the surface of the base material by the surface treatment agent of the present disclosure.

The substrates that can be used in the present disclosure can be made of, for example, glass, resin (natural or synthetic resin, or general plastic materials), metal, ceramics, semiconductors (silicon, germanium, etc.), fibers (fabrics, non-woven fabrics, etc.) , fur, leather, wood, ceramics, stone, etc., building components, etc., sanitary products, and any suitable materials.

For example, when the article to be manufactured is an optical component, the material constituting the surface of the base material may be a material for optical components, such as glass or transparent plastic. In addition, when the article to be manufactured is an optical component, a certain layer (or film), such as a hard coating layer or an anti-reflective layer, may be formed on the surface (outermost layer) of the base material. As the anti-reflection layer, either a single-layer anti-reflection layer or a multi-layer anti-reflection layer can be used. Examples of inorganic substances that can be used in the anti-reflective layer include: SiO ₂ , SiO, ZrO ₂ , TiO ₂ , TiO, Ti ₂ O ₃ , Ti ₂ O ₅ , Al ₂ O ₃ , Ta ₂ O ₅ , Ta ₃ O ₅ , Nb ₂ O ₅ , HfO ₂ , Si ₃ N ₄ , CeO ₂ , MgO, Y ₂ O ₃ , SnO ₂ , MgF ₂ , WO ₃ , etc. These inorganic substances can be used individually or in combination of 2 or more types (for example, a mixture). In the case of making a multi-layer anti-reflective layer, the outermost layer is preferably made of SiO ₂ and/or SiO. When the article to be manufactured is an optical glass component for a touch panel, a thin film using a transparent electrode (such as indium tin oxide (ITO) or indium zinc oxide) may be provided on a part of the surface of the base material (glass). In addition, the base material can 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 depending on the specific specifications. Group etc.

The shape of the above-mentioned substrate is not particularly limited, and may be, for example, plate-shaped, film-shaped, or other shapes. In addition, the surface area of the base material to be formed with the surface treatment layer only needs to be at least a part of the surface of the base material, and can be appropriately determined according to the use and specific specifications of the article to be manufactured.

In one aspect, the base material may be one in which at least part of its surface is composed of "a material that originally has hydroxyl groups." Examples of the material include glass, and also include metals (especially base metals), ceramics, and semiconductors having natural oxide films or thermal oxide films formed on their surfaces. Alternatively, when a resin or the like has hydroxyl groups but they are not sufficient, or when it does not originally have hydroxyl groups, it is possible to introduce hydroxyl groups on the surface of the base material by subjecting the base material to some kind of pretreatment or Increase its amount. Examples of this pretreatment include plasma treatment (such as corona discharge) or ion beam irradiation. Plasma treatment is applicable because it can introduce or increase the amount of hydroxyl groups on the surface of the base material and clean the surface of the base material (removing foreign matter, etc.). In addition, other examples of this pretreatment can be listed: first, an interfacial adsorbent with a carbon-carbon unsaturated bonding group is formed in the form of a monomolecular film through the LB method (Langmuir-Blodgett method) or chemical adsorption method. A method of cracking unsaturated bonds on the surface of a substrate and then cracking the unsaturated bonds in an environment containing oxygen or nitrogen.

In other aspects, as for the substrate, at least part of its surface may also be made of "a polysiloxy compound having one or more other reactive groups (such as Si-H groups), or an alkoxy group-containing Made of silane material.

In a preferred aspect, the above-mentioned substrate is glass. The glass is preferably sapphire glass, soda-lime glass, alkali aluminosilicate glass, borosilicate glass, alkali-free glass, crystallized glass, quartz glass, and particularly preferably chemically strengthened soda-lime glass, chemically strengthened alkali glass Aluminosilicate glass, and chemically bonded borosilicate glass.

For the article of the present disclosure, the layer of the surface treatment agent of the present disclosure can be formed on the surface of the above-mentioned substrate, and then post-processing the layer if necessary to form a layer composed of the surface treatment agent of the present disclosure. .

The layer of the surface treatment agent disclosed in the present disclosure can be formed by applying the above surface treatment agent to the surface of the substrate in a manner to cover the surface. The covering method is not particularly limited. For example, a wet coating method and a dry coating method can be used.

Examples of wet coating methods include dip coating, spin coating, flow coating, spray coating, roll coating, gravure coating and similar methods.

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

Furthermore, it can also be coated by atmospheric pressure plasma method.

When a wet coating method is used, the surface treatment agent of the present disclosure can be applied to the surface of the substrate after being diluted with a solvent. From the viewpoint of the stability of the surface treatment agent and the volatility of the solvent of the present disclosure, the following solvents are suitable for use: perfluoroaliphatic hydrocarbons with 5 to 12 carbon atoms (such as perfluorohexane, perfluoromethylcyclohexane alkane and perfluoro-1,3-dimethylcyclohexane); polyfluorinated aromatic hydrocarbons (such as bis(trifluoromethyl)benzene); polyfluorinated aliphatic hydrocarbons (such as C ₆ F ₁₃ CH ₂ CH ₃ ( For example, Asahiklin (registered trademark) AC-6000 manufactured by Asahi Glass Co., Ltd.), 1,1,2,2,3,3,4-heptafluorocyclopentane (such as Zeorora (registered trademark) manufactured by Zeon Japan Co., Ltd. H); Hydrofluoroether (HFE) (such as perfluoropropyl methyl ether (C ₃ F ₇ OCH ₃ ) (such as Novec (trademark) 7000 manufactured by Sumitomo 3M Co., Ltd.), perfluorobutyl methyl ether (C ₄ F ₉ OCH ₃ ) (for example, Novec (trademark) 7100 manufactured by Sumitomo 3M Co., Ltd.), perfluorobutyl ether (C ₄ F ₉ OC ₂ H ₅ ) (for example, Novec (trademark) 7200 manufactured by Sumitomo 3M Co., Ltd.), _{Alkyl perfluoroalkyl} ethers _{( perfluoroalkyl and} alkyl It can be linear or branched), or CF ₃ CH ₂ OCF ₂ CHF ₂ (for example, Asahiklin (registered trademark) AE-3000 manufactured by Asahi Glass Co., Ltd.)), etc. These solvents can be used alone or as two types A mixture of the above is used. Among them, hydrofluoroether is preferred, and perfluorobutyl methyl ether (C ₄ F ₉ OCH ₃ ) and/or perfluorobutyl ethyl ether (C ₄ F ₉ OC ₂ H ₅ ) is particularly preferred.

When the dry coating method is used, the surface treatment agent of the present disclosure can be used directly in the dry coating method, or can be used in the dry coating method after being diluted with the above solvent.

Regarding the formation of the layer of the surface treatment agent, it is preferably carried out in such a manner that the "surface treatment agent of the present disclosure" and the "catalyst for hydrolysis and dehydration condensation" coexist in the layer. Simply speaking, if it is carried out by a wet coating method, after diluting the surface treatment agent of the present disclosure with a solvent, a catalyst can be added to the surface treatment agent of the present disclosure immediately before using it on the surface of the substrate. in diluent. If it is carried out by a dry coating method, the surface treatment agent of the disclosure with the catalyst added can be directly evaporated (usually vacuum evaporation), or the surface treatment agent of the disclosure with the catalyst added can be used. The surface treatment agent is impregnated into a porous metal such as iron or copper to form a granular substance, and then the granular substance is used to perform evaporation (usually vacuum evaporation) processing.

Any suitable acid or alkali can be used as the catalyst. As the acid catalyst, for example, acetic acid, formic acid, trifluoroacetic acid, etc. can be used. In addition, ammonia, organic amines, etc. can be used as an alkali catalyst, for example.

Articles of the present disclosure contain surface treatments that provide high friction durability. In addition, in addition to having high friction durability, the above-mentioned surface treatment layer may also have water repellency, oil repellency, and antifouling properties (for example, preventing the adhesion of dirt such as fingerprints), depending on the composition of the surface treatment agent used. ), water resistance (preventing water from intruding into electronic parts, etc.), surface smoothness (or lubricity, such as the ability to remove dirt such as fingerprints or excellent touch for fingers), chemical resistance, etc., can be suitable for applications as functional films.

That is, the present disclosure also relates to optical materials having the above-mentioned surface treatment layer in the outermost layer.

As for optical materials, in addition to the optical materials related to displays and the like exemplified below, various optical materials are also suitable: for example, cathode ray tubes (CRT (Cathode Ray Tube); for example, personal computer monitors), Displays such as liquid crystal displays, plasma displays, organic EL displays, inorganic thin film EL dot matrix displays, rear projection displays, fluorescent display tubes (VFD: Vacuum Fluorescent Display), field emission displays (FED; Field Emission Display), or other displays Protective panels for monitors, or those with anti-reflective coatings on their surfaces.

The object of the present disclosure is not particularly limited and may be an optical component. Examples of optical components can be listed as follows: lenses for glasses, etc.; front protective plates, anti-reflective plates, polarizing plates, anti-glare plates for displays such as PDP and LCD; touch panels for mobile phones, portable information terminals and other equipment; Disc surfaces of Blu-ray (registered trademark) discs, DVD discs, CD-R, MO and other discs; optical fibers; display surfaces of watches, etc.

In addition, the items disclosed herein may also be medical machines or medical materials.

The thickness of the above layer is not particularly limited. In the case of optical components, from the viewpoint of optical performance, friction durability and antifouling properties, the thickness of the above layer is preferably in the range of 1 to 50 nm, 1 to 30 nm, and preferably in the range of 1 to 15 nm.

Above, the use of the surface treatment agents and articles disclosed in the present disclosure has been described in detail. However, the surface treatment agents and articles disclosed in this disclosure are not limited to those illustrated above.

[Example]

In the following, the surface treatment agent of the present disclosure will be described in the examples, but the present disclosure is not limited to the following examples. In this embodiment, the order of the repeating units constituting the fluoropolyether and the polyether is arbitrary, and the chemical formula shown below represents the average composition.

(ingredient (A))

The following compounds (a1) and (a2) were prepared as silane compounds containing a fluoropolyether group.

． Compound (a1): m=15, n=16

． Compound (a2): m=21, n=36

(ingredient (B))

The following compound (b1) was prepared as an alkylamide compound containing a fluoropolyether group.

． Compound (b1): m=19.5, n=33.3

Synthesis example (b1)

The average composition HOCOCF ₂ O (CF ₂ CF ₂ ) _19.5 (CF ₂ O) _33.3 CF ₂ COOH (but the mixture also contains trace amounts of the following compounds: trace amounts of (CF ₂ CF ₂ CF ₂ O) and/or (CF ₂ 4g of perfluoropolyether modified carboxylic acid compound represented by the repeating unit of CF ₂ CF ₂ CF ₂ O), 2 g of 1,3-bis(trifluoromethyl)benzene, N,N-dimethylmethane 0.13g of amide and 0.4g of thionyl chloride were put into a 50mL three-neck flask equipped with a reflux cooler, a thermometer and a stirrer, and stirred at 60°C for 2 hours. Next, volatile components were distilled off under reduced pressure to obtain 4 g of a perfluoropolyether compound (b1') having a chloride group at the terminal.

Cl-CO-CF ₂ O(CF ₂ CF ₂ ) _20.4 (CF ₂ O) _34.5 CF ₂ -CO-Cl (b1')

4g of the perfluoropolyether compound (b1') having a chloride group and 2g of 1,3-bis(trifluoromethyl)benzene obtained by the above synthesis were put into a 50mL three-neck container equipped with a reflux cooler, a thermometer and a stirrer. In the flask, cool to 5°C. Next, 2.2 mL of dimethylamine THF solution (2 mol/L) was added, and the mixture was stirred at room temperature overnight. Then, a washing operation with 3N hydrochloric acid was performed three times using a separatory funnel (more specifically, the fluorine-based compound was maintained in the 1,3-bis(trifluoromethyl)benzene phase and the non-fluorine-based compound was maintained in the 1,3-bis(trifluoromethyl)benzene phase. The operation of separating the compound into the hydrochloric acid layer (aqueous system). Then, volatile components were distilled off under reduced pressure to obtain 3.14 g of an alkylamide compound (b1) containing a perfluoropolyether group.

(CH ₃ ) ₂ N-CO-CF ₂ O(CF ₂ CF ₂ ) _20.4 (CF ₂ O) _34.5 CF ₂ -CO-N(CH ₃ ) ₂ (b1)

(ingredient (C))

The following compound (c1) was prepared as a amide compound containing a fluoropolyether group.

． Compound (c1): m=22.7, n=22.0

Examples 1 to 6

(Preparation of surface treatment agent)

The silane compound containing a fluoropolyether group (component A) and the alkylamide compound containing a fluoropolyether group (component B) shown in Table 1 were mixed so as to have a ratio shown in Table 1. so that ingredient A is the same as ingredient The obtained mixture was diluted with hydrofluoroether (Novec 7200, manufactured by 3M Company) so that the total concentration of B became 20% by mass, and a surface treatment agent was prepared.

Comparative Examples 1 to 4

Regarding Comparative Examples 1 to 2, the surface treatment agent was prepared in the same manner as in the above-mentioned Example except that component B was not used. Regarding Comparative Examples 3 to 4, the fluoropolyether group-containing silane compound (component A) and the fluoropolyether group-containing amide compound (component C) shown in Table 1 were mixed in such a ratio as shown in Table 1 ), the surface treatment agent was prepared in the same manner as in the above embodiment.

[Table 1]

(Formation of surface treatment layer)

The surface treatment agents prepared above (Examples 1 to 6 and Comparative Examples 1 to 4) were vacuum evaporated on chemically strengthened glass ("Gorilla" glass manufactured by Corning Co., Ltd., thickness 0.7 mm). The processing conditions of vacuum evaporation were set to a pressure of 3.0×10 ^-3 Pa. First, a silica film was formed on the surface of chemically strengthened glass, and then 400 mg of a surface treatment agent was evaporated to form a surface treatment layer.

(Measurement of initial contact angle)

For the surface treatment layer obtained by using the surface treatment agents of Examples 1 to 6 and Comparative Examples 1 to 4, the static contact angles (degrees) of water at 5 locations were measured and the average value (degrees) was taken as the initial contact. The value of the angle (degree) (the number of frictions is 0 times).

(Eraser (ER) friction durability test)

After the base material on which the surface treatment layer was formed was arranged horizontally, an eraser (manufactured by Minoan, model: MB006004, diameter 0.6cm) was brought into contact with the surface of the surface treatment layer, and a load of 1000gf was applied to it, and then, The eraser is moved back and forth at a speed of 20 mm/second while a load is applied to conduct an eraser friction durability test. Each time the number of back and forth is 100, measure the static contact angle (degrees) of water at 5 locations and take the average value (degrees). The test is stopped at a point when the average contact angle (degree) becomes less than 100 degrees, and the number of back and forth times when the previous contact angle exceeds 100 degrees is used as the numerical value (times) of the eraser friction durability, which is shown in the following table .

[Table 2]

． Steel wool (SW) friction durability evaluation

Conduct steel wool friction durability evaluation on base materials with surface treatment layers. Specifically, after the base material on which the surface treatment layer is formed is arranged horizontally, steel wool (number #0000, size 5mm × 10mm × 10mm) in contact with the surface treatment layer of the base material, apply a load of 1,000gf on it, and then move the steel wool back and forth at a speed of 140mm/second while the load is applied. The static contact angle (degree) of water is measured every time the number of reciprocations reaches 1,000, and the evaluation is terminated when the measured value of the contact angle becomes less than 100 degrees. The number of back and forth when the final contact angle exceeds 100 degrees is shown in the table below (in the table, the symbol "-" indicates that it has not been measured). Incidentally, the test was terminated when the number of back-and-forth operations reached 20,000 times.

[table 3]

From the above results, it was confirmed that the surface treatment agent disclosed herein containing "silane compound containing fluoropolyether group" and "alkylamide compound containing fluoropolyether group" can form a surface treatment layer having excellent friction durability. .

[Industrial applicability]

The disclosed article is suitable for application in various applications, such as as an optical component of a touch panel.

Claims (24)

A surface treatment agent containing: component (A), which is a silane compound containing a fluoropolyether group; and component (B), which is a silane compound containing a fluoropolyether group represented by the following formula (B1) or (B2) Alkylamide compounds, R ^FB1 -X ^B -CONR ^B1 R ^B2 (B1) R ^B2 R ^B1 NOC-X ^B -R ^FB2 -X ^B -CONR ^B1 R ^B2 (B2) In the formula, R ^FB1 is Rf ¹ -R ^F -O _q -, R ^FB2 is -Rf ² _p -R ^F -O _q -, R ^F are independently divalent fluoropolyether groups, Rf ¹ is a C _1-16 alkyl group which may be substituted by more than 1 fluorine atom, Rf ² is a C _1-6 alkylene group which may be substituted by more than one fluorine atom, p is 0 or 1, q is independently 0 or 1, X ^B is independently a single bond or a divalent base, R ^B1 are each independently C _1-6 alkyl, R ^B2 are each independently a C _1-6 alkyl group or a hydrogen atom. The surface treatment agent according to claim 1, wherein R ^B2 are each independently a C _1-6 alkyl group. The surface treatment agent as described in claim 1 or 2, wherein X ^B is independently a single bond or -(R ⁶⁷ ) _b1 -(R ⁶⁸ ) _b2 -, In the formula, R ⁶⁷ are each independently C _1-6 alkylene group, R ⁶⁸ is independently an oxygen atom, a sulfur atom, CO, NR ⁶⁹ , CONR ⁶⁹ , NR ⁶⁹ CO or C _6-12 aryl group, R ⁶⁹ are each independently a hydrogen atom or a C _1-6 alkyl group, b1 is an integer from 0 to 6, b2 is an integer from 0 to 6, The total of b1 and b2 is 1 or more, The order of existence of each repeating unit marked b1 or b2 and enclosed in parentheses is arbitrary in the formula. The surface treatment agent according to any one of claims 1 to 3, wherein X ^B is independently a single bond, C _1-6 alkylene group or -R ⁶⁴ -OR ⁶⁵ -, R ⁶⁴ is a single bond or C _1-6 alkylene group, R ⁶⁵ is a single bond or C _1-6 alkylene group. The surface treatment agent according to any one of claims 1 to 4, wherein R ^F are each independently a group represented by the following formula, -(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ R ^Fa ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - In the formula, R ^Fa are each independently a hydrogen atom, a fluorine atom or a chlorine atom, a, b, c, d, e and f are each independently an integer from 0 to 200. The sum of a, b, c, d, e and f is more than 1. Mark a, b, c, d, e or f The order of existence of each repeating unit enclosed in parentheses is arbitrary in the formula; however, when all R ^Fa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more . The surface treatment agent as described in any one of claims 1 to 5, wherein, Rf ¹ is C _1-16 perfluoroalkyl, Rf ² is C _1-6 perfluoroalkyl group, R ^F are independently the bases represented by the following formulas, -(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - In the formula, a, b, c, d, e and f are each independently an integer from 0 to 200. The sum of a, b, c, d, e and f is more than 1. Mark a, b, c, d, e or f The order of existence of each repeating unit enclosed in parentheses is arbitrary in the formula; however, when all R ^Fa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more . The surface treatment agent according to any one of claims 1 to 6, wherein R ^F are independently the following formulas (f1), (f2), (f3), (f4), (f5) or (f6) ) represents the basis, -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e - (f1) In the formula, d is an integer from 1 to 200, and e is 0 or 1; -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f2) In the formula, c and d are independently integers from 0 to 30, e and f are independently integers from 1 to 200, The sum of c, d, e and f is an integer from 10 to 200, The order of existence of each repeating unit marked c, d, e or f and enclosed in parentheses is arbitrary in the formula; -(R ⁶ -R ⁷ ) _g - (f3) In the formula, R ⁶ is OCF ₂ or OC ₂ F ₄ , R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or a combination of 2 or 3 groups selected from these groups, g is an integer from 2 to 100; -(R ⁶ -R ⁷ ) _g -R ^r -(R ^7' -R ^6' ) _g' - (f4) In the formula, R ⁶ is OCF ₂ or OC ₂ F ₄ , R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or 2 or 3 groups independently selected from these groups. combination, R ^6' is OCF ₂ or OC ₂ F ₄ , R ^7' is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or 2 or 3 groups independently selected from these groups. combination, g is an integer from 2 to 100, g' is an integer from 2 to 100, R ^r is the following formula,

In the formula, * represents the bonding position; -(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f5) 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. Mark a, b, c, d, e or f and enclose it in brackets. The order of existence of each repeating unit in the formula is arbitrary; -(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f6) In the formula, f is an integer from 1 to 200, a, b, c, d and e are each independently an integer from 0 to 200. Label a, b, c, d, e or f and enclose it in brackets. The order of existence of each repeating unit in the formula is arbitrary. The surface treatment agent according to any one of claims 1 to 7, wherein the silane compound containing a fluoropolyether group is a compound represented by the following formula (A1) or (A2), R ^FA1 _α1 -X ^A -R ^Si _β1 (A1) R ^Si _γ1 -X ^A -R ^FA2 -X ^A -R ^Si _γ1 (A2) In the formula, R ^FA1 are independently Rf ¹ -R ^F -O _q -, R ^FA2 is -Rf ² _p -R ^F -O _q -, R ^F are independently divalent fluoropolyether groups, Rf ¹ is a C _1-16 alkyl group which may be substituted by more than 1 fluorine atom, Rf ² is a C _1-6 alkylene group which may be substituted by more than 1 fluorine atom, p is 0 or 1, q is independently 0 or 1, R ^Si is each independently a monovalent group containing a Si atom bonded to a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent group, At least one R ^Si is a univalent group containing a Si atom bonded to a hydroxyl group or a hydrolyzable group, X ^A are each independently a single bond or a valence base of 2 to 10, α1 is an integer from 1 to 9, β1 is an integer from 1 to 9, γ1 is each independently an integer from 1 to 9. The surface treatment agent according to claim 8, wherein in the formulas (A1) and (A2), R ^F are each independently a group represented by the following formula, -(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ R ^Fa ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - In the formula, R ^Fa are each independently a hydrogen atom, a fluorine atom or a chlorine atom, a, b, c, d, e and f are each independently an integer from 0 to 200. The sum of a, b, c, d, e and f is more than 1. Mark a, b, c, d, e or f The order of existence of each repeating unit enclosed in parentheses is arbitrary in the formula; however, when all R ^Fa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more . The surface treatment agent as described in claim 8 or 9, wherein in formulas (A1) and (A2), Rf ¹ is a C _1-16 perfluoroalkyl group, Rf ² is C _1-6 perfluoroalkyl group, R ^F are independently the bases represented by the following formulas, -(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - In the formula, a, b, c, d, e and f are each independently an integer from 0 to 200. The sum of a, b, c, d, e and f is more than 1. Mark a, b, c, d, e or f The order of existence of each repeating unit enclosed in parentheses is arbitrary in the formula; however, when all R ^Fa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more . The surface treatment agent according to any one of claims 8 to 10, wherein in the formulas (A1) and (A2), R ^F are each independently the following formula (f1), (f2), (f3) , the basis represented by (f4), (f5) or (f6), -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e - (f1) In the formula, d is an integer from 1 to 200, and e is 0 or 1; -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f2) In the formula, c and d are independently integers from 0 to 30, e and f are independently integers from 1 to 200, The sum of c, d, e and f is an integer from 10 to 200, The order of existence of each repeating unit marked c, d, e or f and enclosed in parentheses is arbitrary in the formula; -(R ⁶ -R ⁷ ) _g - (f3) In the formula, R ⁶ is OCF ₂ or OC ₂ F ₄ , R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or a combination of 2 or 3 groups selected from these groups, g is an integer from 2 to 100; -(R ⁶ -R ⁷ ) _g -R ^r -(R ^7' -R ^6' ) _g' - (f4) In the formula, R ⁶ is OCF ₂ or OC ₂ F ₄ , R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or 2 or 3 groups independently selected from these groups. combination, R ^6' is OCF ₂ or OC ₂ F ₄ , R ^7' is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or 2 or 3 groups independently selected from these groups. combination, g is an integer from 2 to 100, g' is an integer from 2 to 100, R ^r is the following formula,

In the formula, * represents the bonding position; -(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f5) 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. Label a, b, c, d, e or f and enclose it in brackets. The order of existence of each repeating unit in the formula is arbitrary; -(OC ₆ F ₁₂ ) _a -(OC ₅ F ₁₀ ) _b -(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f6) In the formula, f is an integer from 1 to 200, a, b, c, d and e are each independently an integer from 0 to 200. Label a, b, c, d, e or f and enclose it in brackets. The order of existence of each repeating unit in the formula is arbitrary. The surface treatment agent according to any one of claims 8 to 11, wherein R ^Si is a group represented by the following formula (S1), (S2), (S3), (S4) or (S5),

-SiR ¹¹ _n1 R ¹² _3-n1 (S2) -SiR ^a1 _k1 R ^b1 _l1 R ^c1 _m1 (S3) -CR ^d1 _k2 R ^e1 _l2 R ^f1 _m2 (S4) -NR ^g1 R ^h1 (S5) In the formula: R ¹¹ are each independently a hydroxyl group or a hydrolyzable group, R ¹² is each independently a hydrogen atom or a monovalent organic group, n1 is an integer from 0 to 3 independently in each (SiR ¹¹ _n1 R ¹² _3-n1 ) unit, X ¹¹ is independently a single bond or a divalent base, R ¹³ is each independently a hydrogen atom or a monovalent organic group, t is independently an integer above 2, R ¹⁴ is independently a hydrogen atom, a halogen atom or -X ¹¹ -SiR ¹¹ _n1 R ¹² _3-n1 , R ¹⁵ is each independently a single bond, an oxygen atom, an alkylene group having 1 to 6 carbon atoms, or an alkyleneoxy group having 1 to 6 carbon atoms, R ^a1 are independently -Z ¹ -SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ; Z ¹ are independently 2-valent bases, R ²¹ are independently -Z ^1' -SiR ^21' _p1' R ^22' _q1' R ^23' _r1' ; R ²² are each independently a hydroxyl group or a hydrolyzable group, R ²³ is each independently a hydrogen atom or a monovalent organic group, p1 are independently integers from 0 to 3, q1 are independently integers from 0 to 3, r1 are independently integers from 0 to 3, The total of p1, q1 and r1 in the unit (SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ) is 3, Z ^1' are independently 2-valent bases, R ^21' are independently -Z ^1" -SiR ^22" _q1" R ^23" _r1" ; R ^22' are each independently a hydroxyl group or a hydrolyzable group, R ^23' are each independently a hydrogen atom or a monovalent organic group, p1' are independently integers from 0 to 3, q1' are independently integers from 0 to 3, r1' are independently integers from 0 to 3, The total of p1', q1' and r1' in the (SiR ^21' _p1' R ^22' _q1' R ^23' _r1' ) unit is 3, Z ^1" are independently 2-valent bases, R ^22" are each independently a hydroxyl group or a hydrolyzable group, R ^23" are each independently a hydrogen atom or a monovalent organic group, q1" are independently integers from 0 to 3, r1" are independently integers from 0 to 3, The total of q1" and r1" in the (SiR ^22" _q1" R ^23" _r1" ) unit is 3, R ^b1 are each independently a hydroxyl group or a hydrolyzable group, R ^c1 are each independently a hydrogen atom or a monovalent organic group, k1 are independently integers from 0 to 3, l1 are independently integers from 0 to 3, m1 are independently integers from 0 to 3, The total of k1, l1 and m1 in the (SiR ^a1 _k1 R ^b1 _l1 R ^c1 _m1 ) unit is 3, R ^d1 are independently -Z ² -CR ³¹ _p2 R ³² _q2 R ³³ _r2 ; Z ² are independently single bond and divalent base; R ³¹ are independently -Z ^2' -CR ^32' _q2' R ^33' _r2' ; R ³² are each independently -Z ³ -SiR ³⁴ _n2 R ³⁵ _3-n2 , R ³³ is independently a hydrogen atom, a hydroxyl group or a monovalent organic group, p2 are independently integers from 0 to 3, q2 are independently integers from 0 to 3, r2 are independently integers from 0 to 3, The total of p2, q2 and r2 in the unit (CR ³¹ _p2 R ³² _q2 R ³³ _r2 ) is 3, Z ^2' is independently a single bond or a divalent base; R ^32' are each independently -Z ³ -SiR ³⁴ _n2 R ³⁵ _3-n2 , R ^33' are each independently a hydrogen atom, a hydroxyl group or a monovalent organic group, q2' are independently integers from 0 to 3, r2' are independently integers from 0 to 3, The total of q2' and r2' in the (CR ^32' _q2' R ^33' _r2' ) unit is 3, Z ³ is independently a single bond or a divalent base; R ³⁴ are each independently a hydroxyl group or a hydrolyzable group, R ³⁵ is each independently a hydrogen atom or a monovalent organic group, n2 are independently integers from 0 to 3, R ^e1 are each independently -Z ³ -SiR ³⁴ _n2 R ³⁵ _3-n2 , R ^f1 are each independently a hydrogen atom, a hydroxyl group or a monovalent organic group, k2 are independently integers from 0 to 3, l2 are independently integers from 0 to 3, m2 are independently integers from 0 to 3, The total of k2, l2 and m2 in the (CR ^d1 _k2 R ^e1 _l2 R ^f1 _m2 ) unit is 3, R ^g1 and R ^h1 are 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 is independently a single bond or a divalent base, However, in formulas (S1), (S2), (S3), (S4) and (S5), there is at least one Si atom bonded to a hydroxyl group or a hydrolyzable group. The surface treatment agent according to any one of claims 8 to 12, wherein α1, β1 and γ1 are 1, and X ^A is a single bond or a divalent group. The surface treatment agent according to any one of claims 8 to 13, wherein X ^A is a single bond or a divalent group represented by the following formula, -(R ⁵¹ ) _p5 -(X ⁵¹ ) _q5 - In the formula, R ⁵¹ is a single bond, -(CH ₂ ) _s5 -, or o-phenylene, m-phenylene or p-phenylene, s5 is an integer from 1 to 20, X ⁵¹ is -(X ⁵² ) _l5 -, X ⁵² is independently selected from -O-, -S-, o-phenylene, m-phenylene or p-phenylene, -C(O)O-, -Si(R ⁵³ ) ₂ -, -( Si(R ⁵³ ) ₂ O) _m5 -Si(R ⁵³ ) ₂ -, -CONR ⁵⁴ -, -O-CONR ⁵⁴ -, -NR ⁵⁴ - and -(CH ₂ ) _n5 -. , R ⁵³ is independently phenyl, C _1-6 alkyl or C _1-6 alkoxy, R ⁵⁴ is independently a hydrogen atom, a phenyl group or a C _1-6 alkyl group, m5 are independently integers from 1 to 100, n5 are independently integers from 1 to 20, l5 is an integer from 1 to 10, p5 is 0 or 1, q5 is 0 or 1, Here, at least one of p5 and q5 is 1, and the order in which the repeating units enclosed in parentheses marked with p5 or q5 is arbitrary, Its right side is bonded to R ^Si . The surface treatment agent according to any one of claims 8 to 14, wherein X ^A is a base represented by the following formula,

In the formula, X ^a is a single bond or a divalent base. The surface treatment agent according to any one of claims 1 to 15, wherein the content of the component (B) is 1 to 70% by mass relative to the total of the component (A) and the component (B). The surface treatment agent according to any one of claims 1 to 16, wherein the content of the component (B) is 1 to 50% by mass relative to the total of the component (A) and the component (B). The surface treatment agent as described in any one of claims 1 to 17, which further contains: one or more other components selected from the group consisting of fluorine-containing oil, polysilicone oil, alcohol and catalyst. The surface treatment agent according to any one of claims 1 to 18, further containing a solvent. The surface treatment agent according to any one of claims 1 to 19, which is used as an antifouling coating agent or a waterproof coating agent. A particle containing: the surface treatment agent described in any one of claims 1 to 20. An article includes: a base material; and a layer formed on the base material by the surface treatment agent described in any one of claims 1 to 20. The article according to claim 22, wherein the aforementioned base material is a glass base material. The article according to claim 22, which is an optical component.