Surface treatment agent

Abstract

An object of the present invention is to provide a composition capable of forming a layer having excellent liquid repellency and excellent lubricity. The present invention provides a composition containing component (A): a crosslinkable compound and component (B): a fluorine-containing liquid repellent compound, wherein the formula: P b -P c > 0 [In the formula: P b is the value of the ratio of the polar component in the surface free energy of the layer formed from the above fluorine-containing liquid repellent compound, and P c is the value of the ratio of the polar component in the surface free energy of the layer formed from the above composition.].

Description

Technical Field

[0001] The present invention relates to a surface treatment agent. Background Art

[0002] As a composition for surface treatment of a substrate, a composition containing a fluoroalkoxysilane and a difunctional or higher alkoxysilane (Patent Document 1), and a composition containing a silane coupling agent and a tetrafunctional alkoxysilane (Patent Document 2) are known.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2017-186495

[0006] Patent Document 2: Japanese Patent Application Laid-Open No. 2013-213181 Summary of the Invention

[0007] Problems to be Solved by the Invention

[0008] An object of the present invention is to provide a composition capable of forming a layer having excellent liquid repellency and excellent lubricity.

[0009] Technical Means for Solving the Problems

[0010] The present invention includes the following embodiments.

[0011] [1] A composition containing:

[0012] Component (A): a crosslinkable compound, and

[0013] Component (B): a fluorinated liquid repellent compound,

[0014] The above composition satisfies the following formula:

[0015] P b -P c > 0

[0016] [In the formula:

[0017] P b is the value of the ratio of the polar component in the surface free energy of the layer formed by the above fluorinated liquid repellent compound,

[0018] P c is the value of the ratio of the polar component in the surface free energy of the layer formed by the above composition.].

[0019] [2] The composition according to [1], which satisfies the following formula:

[0020] P b -Pc ≥3.0.

[0021] [3] The composition according to [1] or [2], wherein,

[0022] P c is 20.0 or less.

[0023] [4] The composition according to any one of [1] to [3], wherein,

[0024] The above crosslinkable compound has a metal alkoxide group.

[0025] [5] The composition according to any one of [1] to [4], wherein,

[0026] The above crosslinkable compound is a compound represented by the following formula (A1) or (A2):

[0027] A[Z a1 -M 1 (OR a1 ) n1 (R a2 ) n2－n1 m1 [Z a2 -R a3 m2 (A1)

[0028] [In the formula:

[0029] A is a 1- to 10-valent organic group,

[0030] Z a1 are each independently a single bond or a divalent organic group,

[0031] M 1 is Al, Ca, Fe, Ge, Hf, In, Si, Ta, Ti, Sn, Zr or Zn;

[0032] R a1 are each independently a hydrogen atom or a C 1－6 alkyl group,

[0033] R a2 are each independently a hydrogen atom or a hydrocarbon group,

[0034] n1 are each independently 1 or more and (the valence of M 1 -1) or less,

[0035] n2 are each independently (the valence of M 1 -1),

[0036] Z a2 are each independently a single bond or a divalent organic group, ​​

[0037] R a3 are each independently a reactive organic group,

[0038] m1 is an integer from 1 to 10,

[0039] m2 is an integer from 0 to 10,

[0040] The sum of m1 and m2 is the valence of A.]

[0041]

[0042] [In the formula:

[0043] M 2 is Al, Ca, Fe, Ge, Hf, In, Si, Ta, Ti, Sn, Zr or Zn;

[0044] R a4 are each independently a hydrogen atom, C 1－6 alkyl or R a6 -CO-;

[0045] R a6 is a monovalent hydrocarbon group;

[0046] R a5 are each independently C 1－3 alkyl or C 1－3 alkoxy;

[0047] n3 is the valence of the above M 2 ;

[0048] n4 is 0 or more and not more than the valence of the above M 2 .].

[0049] [6] The composition according to [5], wherein,

[0050] n1 is 2 or more.

[0051] [7] The composition according to [5] or [6], wherein,

[0052] The above R a1 is C 1－4 alkyl.

[0053] [8] The composition according to any one of [5] to [7], wherein,

[0054] A is an alkylene group or a group represented by the following formula:

[0055]

[0056] [In the formula:

[0057] Xa Each is independently a monovalent or divalent organic group.

[0058] [9] The composition according to any one of [5] to [8], wherein [[ID=�]]

[0059] The above reactive organic group is an isocyanate group, an epoxy group or a vinyl group.

[0060]

[10] The composition according to any one of [1] to [9], wherein

[0061] The above fluorine-containing liquid-repellent compound has a fluoroalkyl group or a fluoropolyether group.

[0062]

[11] The composition according to

[10] , wherein

[0063] The above fluoropolyether group is a group represented by the following formula:

[0064] -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3R Fa 6) d -(OC2F4) e -(OCF2) f -

[0065] [In the formula, R Fa is independently a hydrogen atom, a fluorine atom or a chlorine atom at each occurrence,

[0066] a, b, c, d, e and f are independently integers from 0 to 200, the sum of a, b, c, d, e and f is 1 or more, and the order of existence of each repeating unit marked with a, b, c, d, e or f and enclosed in parentheses is arbitrary in the formula. Among them, when all R Fa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more.

[0067]

[12] The composition according to any one of [1] to

[11] , wherein

[0068] The above fluorine-containing liquid-repellent compound is a silane compound containing a fluoropolyether group represented by the following formula (1) or formula (2):

[0069] R F1 α -X A -R Si β (1)

[0070] R Siγ -X A -R F2 -X A -R Si γ (2)

[0071] [wherein,

[0072] R F1 is, at each occurrence, independently Rf 1 - or Rf 1 -R F -O q -;

[0073] R F2 is -Rf 2 - or -Rf 2 p -R F -O q -;

[0074] Rf 1 is, at each occurrence, independently a C 1-16 alkyl group which may be substituted with one or more fluorine atoms;

[0075] Rf 2 is a C 1-6 alkylene group which may be substituted with one or more fluorine atoms;

[0076] R F is, at each occurrence, independently a divalent fluorinated polyether group;

[0077] p is 0 or 1;

[0078] q is, at each occurrence, independently 0 or 1;

[0079] R Si is, at each occurrence, independently a monovalent group containing a Si atom bonded to a hydroxyl group, a hydrolyzable group or a monovalent organic group, or a monovalent group containing a reactive organic group;

[0080] At least one R Si is a monovalent group containing a Si atom bonded to a hydroxyl group or a hydrolyzable group, or a monovalent group containing a reactive organic group;

[0081] X A is, independently, a single bond or a divalent to decavalent organic group;

[0082] α is an integer from 1 to 9;

[0083] β is an integer from 1 to 9;

[0084] γ is independently an integer from 1 to 9.

[0085]

[13] The composition according to

[12] , wherein,

[0086] R F is independently at each occurrence a group represented by the following formula:

[0087] -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3R Fa 6) d -(OC2F4) e -(OCF2) f -

[0088] [In the formula, R Fa is independently at each occurrence a hydrogen atom, a fluorine atom or a chlorine atom, a, b, c, d, e and f are independently integers from 0 to 200, the sum of a, b, c, d, e and f is 1 or more, the order of existence of each repeating unit marked with a, b, c, d, e or f and enclosed in parentheses is arbitrary in the formula, wherein, when all R Fa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more.

[0089]

[14] The composition according to

[12] or

[13] , wherein,

[0090] R F is independently at each occurrence a group represented by the following formula (f1), formula (f2), formula (f3), formula (f4), formula (f5) or formula (f6):

[0091] -(OC3F6) d -(OC2F4) e -(f1)

[0092] [In the formula, d is an integer from 1 to 200, and e is 0 or 1.

[0093] -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f -(f2)

[0094] [In the formula, c and d are independently integers from 0 to 30;

[0095] e and f are independently integers from 1 to 200;

[0096] The sum of c, d, e, and f is an integer from 10 to 200;

[0097] The order of existence of each repeating unit marked with a subscript c, d, e, or f and enclosed in parentheses is arbitrary in the formula.

[0098] -(R 6 -R 7 ) g -(f3)

[0099] [In the formula, R 6 is OCF2 or OC2F4;

[0100] R 7 is a group selected from OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 or a combination of 2 or 3 groups selected from these groups;

[0101] g is an integer from 2 to 100.

[0102] -(R 6 -R 7 ) g -R r -(R 7′ -R 6′ ) g′ -(f4)

[0103] [In the formula, R 6 is OCF2 or OC2F4,

[0104] R 7 is a group selected from OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 or a combination of 2 or 3 groups independently selected from these groups,

[0105] R 6′ is OCF2 or OC2F4,

[0106] R 7′ is a group selected from OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 or a combination of 2 or 3 groups independently selected from these groups,

[0107] g is an integer from 2 to 100,

[0108] g' is an integer from 2 to 100,

[0109] R r is

[0110]

[0111] (In the formula, * indicates the bonding position.).];

[0112] -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f -(f5)

[0113] [In the formula, e is an integer of 1 or more and 200 or less, a, b, c, d, and f are each independently an integer of 0 or more and 200 or less, and the order of presence of each repeating unit marked with a, b, c, d, e, or f and enclosed in parentheses is arbitrary in the formula.]

[0114] -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f -(f6)

[0115] [In the formula, f is an integer of 1 or more and 200 or less, a, b, c, d, and e are each independently an integer of 0 or more and 200 or less, and the order of presence of each repeating unit marked with a, b, c, d, e, or f and enclosed in parentheses is arbitrary in the formula.].

[0116]

[15] The composition according to any one of

[12] to

[14] , wherein,

[0117] The above reactive organic group is an isocyanate group, an epoxy group, or a vinyl group.

[0118]

[16] The composition according to any one of

[12] to

[15] , wherein,

[0119] R Si is a group represented by the following formula (S1), formula (S2), formula (S3), formula (S4), or formula (S5):

[0120]

[0121] -SiR 11 n1 R12 3-n1 (S2)

[0122] -SiR a1 k1 R b1 11 R c1 m1 (S3)

[0123] -CR d1 12 R e1 12 R f1 n2 (S4)

[0124] -NR g1 R h1 (S5)

[0125] [wherein:

[0126] R 11 is independently, at each occurrence, a hydroxyl group or a hydrolyzable group;

[0127] R 12 is independently, at each occurrence, a monovalent organic group;

[0128] n1 is independently, in each (SiR 11 n1 R 12 3-n1 ) unit, an integer from 0 to 3;

[0129] X 11 is independently, at each occurrence, a single bond or a divalent organic group;

[0130] R 13 is independently, at each occurrence, a hydrogen atom or a monovalent organic group;

[0131] t is independently, at each occurrence, an integer of 2 or more;

[0132] R 14 is independently, at each occurrence, a hydrogen atom, a halogen atom or -X 11 -SiR 11 n1 R 12 3-n1 ;

[0133] R 15 is independently, at each occurrence, a single bond, an oxygen atom, an alkylene group having 1 to 6 carbon atoms or an alkoxy group having 1 to 6 carbon atoms;

[0134] R a1independently at each occurrence is -Z 1 -SiR 21 p1 R 22 q1 R 23 r1 ;

[0135] Z 1 independently at each occurrence is an oxygen atom or a divalent organic group;

[0136] R 21 independently at each occurrence is -Z 1′ -SiR 21′ p1′ , R 22′ q1′ R 232 r1′ ;

[0137] R 22 independently at each occurrence is a hydroxyl group or a hydrolyzable group;

[0138] R 23 independently at each occurrence is a monovalent organic group;

[0139] p1 is independently at each occurrence an integer from 0 to 3;

[0140] q1 is independently at each occurrence an integer from 0 to 3;

[0141] r1 is independently at each occurrence an integer from 0 to 3;

[0142] The sum of p1, q1 and r1 is 3 in the (SiR 21 p1 R 22 q1 R 23 r1 ) unit;

[0143] Z 1′ independently at each occurrence is an oxygen atom or a divalent organic group;

[0144] R 21′ independently at each occurrence is -Z 1" -SiR 22" q1" R 23" r1" ;

[0145] R 22′ independently at each occurrence is a hydroxyl group or a hydrolyzable group;

[0146] R 23′An organic group that is monovalent and independent at each occurrence;

[0147] p1′ is independently an integer from 0 to 3 at each occurrence;

[0148] q1′ is independently an integer from 0 to 3 at each occurrence;

[0149] r1′ is independently an integer from 0 to 3 at each occurrence;

[0150] The sum of p1′, q1′, and r1′ is 3 in the (SiR 21′ p1′ R 22′ q1′ R 23′ r1′ ) unit;

[0151] Z 1" Is independently an oxygen atom or a divalent organic group at each occurrence;

[0152] R 22" Is independently a hydroxyl group or a hydrolyzable group at each occurrence;

[0153] R 23" Is independently a monovalent organic group at each occurrence;

[0154] q1" is independently an integer from 0 to 3 at each occurrence;

[0155] r1" is independently an integer from 0 to 3 at each occurrence;

[0156] The sum of q1" and r1" is 3 in the (SiR 22" q1" R 23" r1" ) unit;

[0157] R b1 Is independently a hydroxyl group or a hydrolyzable group at each occurrence;

[0158] R c1 Is independently a monovalent organic group at each occurrence;

[0159] k1 is independently an integer from 0 to 3 at each occurrence;

[0160] l1 is independently an integer from 0 to 3 at each occurrence;

[0161] m1 is independently an integer from 0 to 3 at each occurrence;

[0162] The sum of k1, l1, and m1 is in the (SiR a1 k1 Rb1 l1 R c1 m1 ) is 3 in each occurrence in the unit;

[0163] R d1 is independently at each occurrence -Z 2 -CR 31 p2 R 32 q2 R 33 r2 ;

[0164] Z 2 is independently at each occurrence a single bond, an oxygen atom or a divalent organic group;

[0165] R 31 is independently at each occurrence -Z 2′ -CR 32′ q2′ R 33′ r2′ ;

[0166] R 32 is independently at each occurrence -Z 3 -SiR 34 n2 R 35 3－n2 ;

[0167] R 33 is independently at each occurrence a hydrogen atom, a hydroxyl group or a monovalent organic group;

[0168] p2 is independently at each occurrence an integer from 0 to 3;

[0169] q2 is independently at each occurrence an integer from 0 to 3;

[0170] r2 is independently at each occurrence an integer from 0 to 3;

[0171] The sum of p2, q2 and r2 is 3 in the (CR 31 p2 R 32 q2 R 33 r2 ) unit;

[0172] Z 2′ is independently at each occurrence a single bond, an oxygen atom or a divalent organic group;

[0173] R 32′ is independently at each occurrence -Z 3 -SiR 34n2 R 35 3－n2 ;

[0174] R 33′ is independently, at each occurrence, a hydrogen atom, a hydroxyl group or a monovalent organic group;

[0175] q2′ is independently, at each occurrence, an integer from 0 to 3;

[0176] r2′ is independently, at each occurrence, an integer from 0 to 3;

[0177] The sum of q2′ and r2′ is 3 in the (CR 32′ q2′ R 33′ r2′ ) unit;

[0178] Z 3 is independently, at each occurrence, a single bond, an oxygen atom or a divalent organic group;

[0179] R 34 is independently, at each occurrence, a hydroxyl group or a hydrolyzable group;

[0180] R 35 is independently, at each occurrence, a monovalent organic group;

[0181] n2 is independently, at each occurrence, an integer from 0 to 3;

[0182] R e1 is independently, at each occurrence, -Z 3 -SiR 34 n2 R 35 3－n2 ;

[0183] R f1 is independently, at each occurrence, a hydrogen atom, a hydroxyl group or a monovalent organic group;

[0184] k2 is independently, at each occurrence, an integer from 0 to 3;

[0185] l2 is independently, at each occurrence, an integer from 0 to 3;

[0186] m2 is independently, at each occurrence, an integer from 0 to 3;

[0187] The sum of k2, l2 and m2 is 3 in the (CR d1 k2 R e1 l2 R f1 m2 ) unit;

[0188] R g1 and R h1 is, at each occurrence independently, -Z 4 -SiR 11 n1 R 12 3－n1 , -Z 4 -SiR a1 k1 R b1 l1 R c1 m1 , -Z 4 -CR d1 k2 R e1 l2 R f1 m2 ;

[0189] Z 4 is, at each occurrence independently, a single bond, an oxygen atom or a divalent organic group;

[0190] wherein, in formula (S1), formula (S2), formula (S3), formula (S4) and formula (S5), there is at least one Si atom bonded to a hydroxyl group or a hydrolyzable group.]]

[0191]

[17] The composition according to any one of

[12] to

[16] , wherein,

[0192] X A is a single bond or a divalent organic group represented by the following formula:

[0193] -(R 51 ) p5 -(X 51 ) q5 -

[0194] [wherein:

[0195] R 51 is a single bond, -(CH2) s5 -, or o-phenylene, m-phenylene or p-phenylene,

[0196] s5 is an integer from 1 to 20,

[0197] X 51 is -(X 52 ) l5 -,

[0198] X 52 is, at each occurrence independently, selected from -O-, -S-, o-phenylene, m-phenylene or p-phenylene, -C(O)O-, -Si(R 53)2-,-(Si(R 53 )2O) m5 -Si(R 53 )2-,-CONR 54 -,-O-CONR 54 -,-NR 54 -and-(CH2) n5 -group,

[0199] R 53 is independently phenyl, C 1－6 alkyl or C 1－6 alkoxy at each occurrence,

[0200] R 54 is independently a hydrogen atom, phenyl or C 1－6 alkyl at each occurrence,

[0201] m5 are independently integers from 1 to 100,

[0202] n5 are independently integers from 1 to 20,

[0203] l5 is an integer from 1 to 10,

[0204] p5 is 0 or 1,

[0205] q5 is 0 or 1,

[0206] wherein at least one of p5 and q5 is 1, and the order of presence of each repeating unit labeled with p5 or q5 and enclosed in parentheses is arbitrary.]。

[0207]

[18] The composition according to any one of

[12] to

[16] , wherein,

[0208] X A is a group represented by the following formula:

[0209]

[0210] [In the formula, X a is a single bond or a divalent organic group.]。

[0211]

[19] The composition according to any one of

[12] to

[18] , wherein,

[0212] The above fluorinated liquid compound is a fluorinated polyether group-containing silane compound represented by formula (1).

[0213]

[20] The composition according to any one of [1] to

[19] , wherein,

[0214] The content of the fluorine-containing liquid-repellent compound is 0.1 to 90.0% by mass relative to the total of the above crosslinkable compound and the above fluorine-containing liquid-repellent compound.

[0215]

[21] The composition according to any one of [1] to

[20] , wherein

[0216] The F / Si ratio of the surface of the layer formed from the above composition is 5.0 or more.

[0217]

[22] The composition according to any one of [1] to

[21] , wherein

[0218] The sliding angle of water on the layer formed from the above composition is 25° or less.

[0219]

[23] The composition according to any one of [1] to

[22] , wherein

[0220] It further contains other components selected from organic solvents, water, and catalysts.

[0221]

[24] The composition according to any one of [1] to

[23] is a surface treatment agent.

[0222]

[25] An article comprising a substrate and a layer formed from the composition according to

[24] above on the substrate.

[0223]

[26] An article comprising a substrate and a layer formed from a composition containing component (A): a crosslinkable compound and component (B): a fluorine-containing liquid-repellent compound,

[0224] The above composition satisfies the following formula:

[0225] P b -P c >0

[0226] [wherein:

[0227] P b is the value of the polar component ratio in the surface free energy of the layer formed from the above fluorine-containing liquid-repellent compound,

[0228] P c is the value of the polar component ratio in the surface free energy of the layer formed from the above composition. ].

[0229]

[27] An article comprising a substrate and a layer formed from a composition containing component (A): a crosslinkable compound and component (B): a fluorine-containing liquid-repellent compound, and the polar component ratio in the surface free energy of the above layer is 20.0% or less.

[0230]

[28] The article according to

[26] or

[27] , wherein

[0231] The F / Si ratio of the surface of the above layer is 5.0 or more.

[0232]

[29] The article according to any one of

[26] to

[28] , wherein

[0233] The sliding angle of water on the above layer is 25° or less.

[0234]

[30] The article according to any one of

[26] to

[29] , wherein

[0235] The thickness of the above layer is 0.01 μm or more.

[0236] Advantages of the Invention

[0237] According to the present invention, a composition capable of forming a layer excellent in liquid repellency and lubricity can be provided. Detailed Description of the Invention

[0238] When used in this specification, a "monovalent organic group" means a monovalent group containing carbon. As the monovalent organic group, there is no particular limitation, and it may be a hydrocarbon group or a derivative thereof. A derivative of a hydrocarbon group means a group having one or more N, O, S, Si, amide group, sulfonyl group, siloxanyl group, carbonyl group, carbonyloxy group, etc. at the terminal or in the molecular chain of the hydrocarbon group. Among them, when only "organic group" is mentioned, it means a monovalent organic group. In addition, a "divalent organic group" to a "decavalent organic group" respectively mean a divalent to decavalent group containing carbon. As the divalent organic group, there is no particular limitation, and examples thereof include divalent to decavalent groups obtained by further removing 1 to 9 hydrogen atoms from the organic group.

[0239] When used in this specification, a "hydrocarbon group" is a group containing carbon and hydrogen, and means a group obtained by removing one hydrogen atom from a hydrocarbon. As the hydrocarbon group, there is no particular limitation, and examples thereof include a C 1－20 hydrocarbon group, such as an aliphatic hydrocarbon group, an aromatic hydrocarbon group, etc. The above "aliphatic hydrocarbon group" may be any of linear, branched or cyclic, and may be either saturated or unsaturated. In addition, the hydrocarbon group may contain one or more ring structures.

[0240] When used in this specification, as the substituent of the "hydrocarbon group", there is no particular limitation, and examples thereof include a halogen atom, a C 1－6 alkyl group, a C 2－6 alkenyl group, a C 2－6 alkynyl group, a C 3－10 cycloalkyl group, a C 3－10 unsaturated cycloalkyl group, a 5- to 10-membered heterocyclic group, a 5- to 10-membered unsaturated heterocyclic group, a C 6－10One or more groups selected from aryl groups and 5- to 10-membered heteroaryl groups.

[0241] The composition of the present invention is a composition containing components (A) and (B),

[0242] Component (A): A crosslinkable compound, and

[0243] Component (B): A fluorine-containing liquid-repellent compound,

[0244] The above composition satisfies the following formula:

[0245] P b -P c > 0

[0246] [In the formula:

[0247] P b is the value of the polar component ratio in the surface free energy of the layer formed from the above fluorine-containing liquid-repellent compound,

[0248] P c is the value of the polar component ratio in the surface free energy of the layer formed from the above composition.].

[0249] The composition of the present invention satisfies P b -P c > 0, and thus, the layer obtained from this composition (hereinafter, also referred to as "surface treatment layer") has liquid repellency and excellent lubricity.

[0250] (Polar component ratio)

[0251] The above value of the polar component ratio means the ratio (%) of the polar component (γ s p ) of the surface free energy in the layer to the sum of the dispersion component (γ s d ) and the polar component (γ s p ), and can be obtained by the following formula:

[0252] Polar component ratio (%) = γ s p / (γ s d +γ s p ) × 100.

[0253] The above dispersion component (γ s d ) and polar component (γ s p) can be obtained as follows: Using two liquids, based on the static contact angle (θ) measured for the layers obtained from each liquid and the known parameters of the two liquids (the surface free energy of the liquid (γ L ), the dispersive component of the surface free energy of the liquid (γ L d ), and the polar component of the surface free energy of liquid 1 (γ L p ), it is obtained based on the Kaelble-Uy formula described later.

[0254]

[0255]

[0256] [In the formula:

[0257] γ L1 is the surface free energy of liquid 1,

[0258] γ L1 d is the dispersive component of the surface free energy of liquid 1,

[0259] γ L1 p is the polar component of the surface free energy of liquid 1,

[0260] γ L2 is the surface free energy of liquid 2,

[0261] γ L2 d is the dispersive component of the surface free energy of liquid 2,

[0262] γ L2 p is the polar component of the surface free energy of liquid 2,

[0263] γ s d is the dispersive component of the surface of the layer,

[0264] γ s p is the polar component of the layer,

[0265] θ1 is the static contact angle of liquid 1,

[0266] θ2 is the static contact angle of liquid 2.]

[0267] As the liquids used for the above liquid 1 and liquid 2, two types are preferably selected from water, hexadecane, and formamide.

[0268] The surface free energy (γ L ) of the above liquid, the dispersive component of the surface free energy (γL d ) and the polar component of the surface free energy (γ L p ) are shown in the following table.

[0269] [Table 1]

[0270] Water Hexadecane Formamide <![CDATA[γ L > 72.8 27.6 58.2 <![CDATA[γ L d > 21.8 27.6 39.5 <![CDATA[γ L p > 51.0 0 18.7

[0271] The static contact angle of the layer can be measured as follows. It should be noted that the static contact angle θ1 of liquid 1 and the static contact angle θ2 of liquid 2 are measured for the layers formed under the same conditions.

[0272] (Method for measuring the static contact angle)

[0273] The static contact angle can be measured as follows: Using a fully automatic contact angle meter DropMaster501 (manufactured by Kyowa Interface Science Co., Ltd.), 2 μL of liquid is dropped onto a horizontally placed surface-treated substrate using a micro syringe, and a still image 1 second after the drop is taken using a video microscope.

[0274] The composition of the present invention satisfies the following conditions.

[0275] P b -P c >0

[0276] [In the formula:

[0277] P b is the value of the ratio of the polar component in the surface free energy of the layer formed from the above fluorine-containing liquid-repellent compound,

[0278] P c is the value of the ratio of the polar component in the surface free energy of the layer formed from the above composition.]

[0279] P b -P c The value is preferably 3.0 or more, more preferably 3.6 or more, still more preferably 5.0 or more, and even more preferably 8.0 or more. By making the value of P b -P c within this range, the liquid repellency and lubricity of the layer are improved.

[0280] P c is preferably 20.0 or less, more preferably 10.0 or less, still more preferably 8.0 or less, and even more preferably 5.0 or less. By making the value of P c within this range, the liquid repellency and lubricity of the layer are improved.

[0281] The thickness of the layer formed from the composition of the present invention described above is, for example, 0.05 μm or more, preferably 0.10 μm or more, more preferably 0.50 μm or more, and even more preferably 1.0 μm or more. The thickness of the above layer is, for example, 0.05 to 10.0 μm, 0.50 to 5.0 μm, 1.0 to 5.0 μm, 1.0 to 3.0 μm.

[0282] (Component (A): Crosslinkable compound)

[0283] The above crosslinkable compound preferably has a metal alkoxide group.

[0284] The alkoxy group in the above metal alkoxide group is preferably C 1－6 alkoxy group, more preferably C 1－3 alkoxy group, and even more preferably methoxy or ethoxy.

[0285] In a preferred embodiment, the above crosslinkable compound is a compound represented by the following formula (A1) or a compound represented by the following formula (A2):

[0286] A[Z a1 -M 1 (OR a1 ) n1 (R a2 ) n2－n1 m1 [Z a2 -R a3 m2 (A1)

[0287] [In the formula:

[0288] A is a monovalent to decavalent organic group,

[0289] Z a1 are each independently a single bond or a divalent organic group,

[0290] M 1 is Al, Ca, Fe, Ge, Hf, In, Si, Ta, Ti, Sn, Zr or Zn;

[0291] R a1 are each independently a hydrogen atom or a C 1－6 alkyl group,

[0292] R a2 are each independently a hydrogen atom or a hydrocarbon group,

[0293] n1 are each independently 1 or more and (the valence of M 1 -1) or less,

[0294] n2 are each independently (the valence of M 1 -1), ​​

[0295] Z a2 is independently a single bond or a divalent organic group

[0296] R a3 is independently a reactive organic group

[0297] m1 is an integer from 1 to 10

[0298] m2 is an integer from 0 to 10

[0299] The sum of m1 and m2 is the valence of A.]

[0300]

[0301] [In the formula:

[0302] M 2 is Al, Ca, Fe, Ge, Hf, In, Si, Ta, Ti, Sn, Zr or Zn;

[0303] R a4 is independently a hydrogen atom, C 1－6 alkyl or R a6 -CO-;

[0304] R a6 is a monovalent hydrocarbon group;

[0305] R a5 is independently C 1－3 alkyl or C 1－3 alkoxy;

[0306] n3 is the valence of the above M 2 ;

[0307] n4 is 0 or more and not more than the valence of the above M 2 .].

[0308] (Compound represented by formula (A1))

[0309] A[Z a1 -M 1 (OR a1 ) n1 (R a2 ) n2－n1 m1 [Z a2 -R a3 m2 (A1)

[0310] A is a 1- to 10-valent organic group, preferably a 1- to 8-valent, more preferably a 1- to 6-valent, even more preferably a 1- to 4-valent, still more preferably a 1- to 3-valent, and particularly preferably a 2- or 3-valent organic group. ​​

[0311] In one embodiment, A is a divalent organic group.

[0312] The above divalent organic group is preferably a group represented by the following formula:

[0313] -[(R A1 ) a1 -(R A2 ) a2 -(R A3 ) a3 -

[0314] [Wherein:

[0315] R A1 are each independently an alkylene group, preferably a C 1－20 alkylene group, more preferably a C 1－10 alkylene group, even more preferably a C 1－6 alkylene group, further more preferably a C 1－4 alkylene group,

[0316] R A2 are each independently a cycloalkylene group, preferably a C 3－20 cycloalkylene group, more preferably a C 3－10 cycloalkylene group, even more preferably a C 5－8 cycloalkylene group, further more preferably a C 5－7 cycloalkylene group,

[0317] R A3 are each independently an arylene group, preferably a C 6－20 arylene group, more preferably a C 6－10 arylene group, even more preferably a C 6－8 arylene group, particularly preferably a phenylene group,

[0318] a1 is an integer from 0 to 5, preferably an integer from 0 to 3, more preferably an integer from 0 to 2, even more preferably 1 or 2,

[0319] a2 is an integer from 0 to 5, preferably an integer from 0 to 3, more preferably 0 or 1,

[0320] a3 is an integer from 0 to 5, preferably an integer from 0 to 3, more preferably 0 or 1,

[0321] The sum of a1, a2 and a3 is 1 or more, preferably an integer from 1 to 5, more preferably an integer from 1 to 3,

[0322] The order of existence of each repeating unit marked with a1, a2 and a3 and enclosed in parentheses is arbitrary.]

[0323] In one embodiment, A is R A1 .

[0324] The above-mentioned R A1 The alkylene group in may be linear or branched, preferably linear.

[0325] In another embodiment, A is a trivalent organic group.

[0326] The above-mentioned trivalent organic group is preferably a group represented by the following formula:

[0327]

[0328] [In the formula:

[0329] X a are each independently a single bond or a divalent organic group.].

[0330] In one embodiment, X a is a single bond.

[0331] In another embodiment, X a is a divalent organic group.

[0332] X a The divalent organic group in is preferably an alkylene group or a divalent group containing at least one bond selected from an ether bond and an ester bond, more preferably a single bond, C 1－10 alkylene, or a divalent hydrocarbon group having 1 to 10 carbon atoms containing at least one bond selected from an ether bond and an ester bond.

[0333] In a preferred embodiment, the divalent organic group in X a is a group represented by the following formula:

[0334] -(CX 121 X 122 ) x1 -(X a1 ) y1 -(CX 123 X 124 ) z1 -

[0335] (In the formula, X 121 to X 124 are each independently H, F, OH or -OSi(OR 121 )3 (in the formula, the 3 Rs 121 are each independently an alkyl group having 1 to 4 carbon atoms),

[0336] The above-mentioned 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 connected to CX 121 X122 Combined),

[0337] x1 is an integer from 0 to 10, y1 is 0 or 1, and z1 is an integer from 1 to 10.).

[0338] It should be noted that the left side of the above group is combined with the isocyanuric ring.

[0339] X a1 Preferably -O- or C(=O)O-.

[0340] X a The divalent organic group in is particularly preferably a group represented by the following formula:

[0341] -(CF2) m11 -(CH2) m12 -O-(CH2) m13 -represented group,

[0342] (In the formula, 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.).

[0343] -(CF2) m14 -(CH2) m15 -O-CH2CH(OH)-(CH2) m16 -represented group,

[0344] (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.).

[0345] -(CF2) m17 -(CH2) m18 -represented group,

[0346] (In the formula, m17 is an integer from 1 to 3, m18 is an integer from 1 to 3.).

[0347] -(CF2) m19 -(CH2) m20 -O-CH2CH(OSi(OCH3)3)-(CH2) m21 -represented group,

[0348] (In the formula, m19 is an integer from 1 to 3, m20 is an integer from 1 to 3, and m21 is an integer from 1 to 3.), or

[0349] -(CH2) m22 -represented group

[0350] (In the formula, m22 is an integer from 1 to 3.).

[0351] As X aThe divalent organic group in it is not particularly limited. Specifically, examples include -CH2-, -C2H4-, -C3H6-, -C4H8-, -C4H8-O-CH2-, -CO-O-CH2-CH(OH)-CH2-, -(CF2) n5 -(n5 is an integer from 0 to 4.), -(CF2) n5 -(CH2) m5 -(n5 and m5 are each independently an integer from 0 to 4.), -CF2CF2CH2OCH2CH(OH)CH2-, -CF2CF2CH2OCH2CH(OSi(OCH3)3)CH2-, etc.

[0352] Z a1 are each independently a single bond or a divalent organic group.

[0353] In one embodiment, Z a1 is a single bond.

[0354] In another embodiment, Z a1 are each independently a divalent organic group.

[0355] The above-mentioned Z a1 The divalent organic groups in it are each independently an alkylene group, preferably a C 1－20 alkylene group, more preferably a C 1－10 alkylene group, even more preferably a C 1－6 alkylene group, further more preferably a C 1－4 alkylene group.

[0356] M 1 is Al, Ca, Fe, Ge, Hf, In, Si, Ta, Ti, Sn, Zr or Zn.

[0357] M 1 is preferably Si, Ti or Zr, more preferably Si.

[0358] R a1 are each independently a hydrogen atom or a C 1－6 alkyl group.

[0359] In a preferred embodiment, R a1 are each independently a C 1－6 alkyl group, preferably a C 1－4 alkyl group, more preferably a C 1－2 alkyl group.

[0360] R a2 are each independently a hydrogen atom or a hydrocarbon group.

[0361] R a2 are each independently a hydrocarbon group.

[0362] R a2 The hydrocarbon group in 1－6 is preferably a C 1－3 alkyl group, more preferably a C 1－2 alkyl group.

[0363] n1 are each independently 1 or more and (the valence of M 1 - 1), and n2 is (the valence of M 1 - 1).

[0364] n1 is preferably 2 or more and (the valence of M 1 - 1), more preferably 3 or more and (the valence of M 1 - 1), even more preferably (the valence of M 1 - 1).

[0365] Z a2 are each independently a single bond or a divalent organic group.

[0366] In one embodiment, Z a2 is a single bond.

[0367] In another embodiment, Z a2 are each independently a divalent organic group.

[0368] The divalent organic group in the above Z a2 is preferably a C 1－6 alkylene group, -(CH2) z1 -O-(CH2) z2 -(wherein z1 is an integer from 0 to 6, for example an integer from 1 to 6, z2 is an integer from 0 to 6, for example an integer from 1 to 6) or -(CH2) z3 -phenylene-(CH2) z4 -(wherein z3 is an integer from 0 to 6, 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 may be linear or branched, preferably linear. These groups may be substituted with one or more substituents selected from, for example, a fluorine atom, a C 1－6 alkyl group, a C 2－6 alkenyl group, and a C 2－6 alkynyl group, preferably unsubstituted.

[0369] In a preferred embodiment, Z a2 is a C 1－6 alkylene group or -(CH2) z1 -O-(CH2) z2 -(wherein, z1 is an integer from 0 to 6, for example an integer from 1 to 6, z2 is an integer from 0 to 6, for example 1 to 6).

[0370] R a3 are each independently a reactive organic group.

[0371] The above-mentioned R a3 The reactive organic group in is an isocyanate group, an epoxy group or a vinyl group.

[0372] In one embodiment, the above-mentioned reactive organic group is an isocyanate group.

[0373] In another embodiment, the above-mentioned reactive organic group is an epoxy group.

[0374] In another embodiment, the above-mentioned reactive organic group is a vinyl group.

[0375] m1 is an integer from 1 to 10, m2 is an integer from 0 to 10, and the sum of m1 and m2 is the valence of A.

[0376] In one embodiment, m1 is an integer from 1 to 10 and m2 is 0.

[0377] In another embodiment, m1 is an integer from 1 to 10 and m2 is an integer from 1 to 10.

[0378] In a preferred embodiment, m1 is 1 or 2, m2 is 0 or 1, preferably m1 is 1 and m2 is 1.

[0379] (Compound represented by formula (A2))

[0380]

[0381] M 2 is Al, Ca, Fe, Ge, Hf, In, Si, Ta, Ti, Sn, Zr or Zn.

[0382] M 2 is preferably Si, Ti or Zr, more preferably Si.

[0383] R a3 are each independently a hydrogen atom, C 1－6 alkyl or R a6 -CO-.

[0384] R a3 are each independently preferably C 1－6 alkyl, more preferably C 1－3 alkyl, even more preferably C 1－2 alkyl.

[0385] R a4 are each independently C 1－3 alkyl or C 1－3 alkoxy.

[0386] The above-mentioned R a4 The alkyl group in is preferably methyl or ethyl, more preferably methyl.

[0387] The above-mentioned R a4 The alkoxy group in is preferably methoxy or ethoxy, more preferably ethoxy.

[0388] n3 is the valence of the above-mentioned M 2 , n4 is 0 or more and is equal to or less than the valence of the above-mentioned M 2 .

[0389] In one embodiment, n4 is the valence of M.

[0390] In another embodiment, (n3 - n4) is 1.

[0391] In one embodiment, the composition of the present invention contains the compound represented by formula (A1).

[0392] In one embodiment, the composition of the present invention contains the compound represented by formula (A2).

[0393] In another embodiment, the composition of the present invention contains the compound represented by formula (A1) and the compound represented by formula (A2).

[0394] <Component (B): Fluorinated liquid compound>

[0395] The above-mentioned fluorinated liquid compound preferably has a fluoroalkyl group or a fluoropolyether group.

[0396] The above-mentioned fluoropolyether group is preferably a group represented by the following formula:

[0397] -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3R Fa 6) d -(OC2F4) e -(OCF2) f -

[0398] [In the formula, R Fa is independently a hydrogen atom, a fluorine atom or a chlorine atom at each occurrence,

[0399] a, b, c, d, e and f are independently integers from 0 to 200, the sum of a, b, c, d, e and f is 1 or more, and the order of existence of each repeating unit marked with a, b, c, d, e or f and enclosed in parentheses is arbitrary in the formula, where, in all R FaWhen it is a hydrogen atom or a chlorine atom, at least one of a, b, c, e, and f is 1 or more.

[0400] In a preferred embodiment, the fluorine-containing liquid-repellent compound is a fluorinated polyether group-containing silane compound represented by the following formula (1) or formula (2):

[0401] R F1 α -X A -R Si β (1)

[0402] R Si γ -X A -R F2 -X A -R Si γ (2)

[0403] [In the formula:

[0404] R F1 is independently Rf at each occurrence 1 - or Rf 1 -R F -O q -;

[0405] R F2 is -Rf 2 - or -Rf 2 p -R F -O q -;

[0406] Rf 1 is independently an alkyl group having 1 or more fluorine atoms that can be substituted at each occurrence 1-16 alkyl;

[0407] Rf 2 is an alkylene group having 1 or more fluorine atoms that can be substituted 1-6 alkylene;

[0408] R F is independently a divalent fluorinated polyether group at each occurrence;

[0409] p is 0 or 1;

[0410] q is independently 0 or 1 at each occurrence;

[0411] R Si is independently a monovalent group containing a Si atom bonded to a hydroxyl group, a hydrolyzable group, or a monovalent organic group, or a monovalent group containing a reactive organic group;

[0412] At least one R Si is a monovalent group containing a Si atom bonded to a hydroxyl group or a hydrolyzable group, or a monovalent group containing a reactive organic group;

[0413] X A are each independently a single bond or an organic group having a valence of 2 to 10;

[0414] α is an integer from 1 to 9;

[0415] β is an integer from 1 to 9;

[0416] γ are each independently an integer from 1 to 9.

[0417] In the above formula (1), R F1 is each independently Rf 1 -R F -O q -.

[0418] In the above formula (2), R F2 is -Rf 2 p -R F -O q -.

[0419] In the above formula, Rf 1 is each independently a C 1－16 alkyl group which may be substituted with one or more fluorine atoms.

[0420] The "C 1－16 alkyl group" in the above C 1－16 alkyl group which may be substituted with one or more fluorine atoms may be linear or branched, preferably a linear or branched C 1－6 alkyl group, especially a C 1－3 alkyl group, more preferably a linear C 1－6 alkyl group, especially a C 1－3 alkyl group.

[0421] The above Rf 1 is preferably a C 1－16 alkyl group substituted with one or more fluorine atoms, more preferably a CF2H-C 1－15 perfluoroalkylene group, even more preferably a C 1－16 perfluoroalkyl group.

[0422] The above C 1－16 perfluoroalkyl group may be linear or branched, preferably a linear or branched C 1－6 perfluoroalkyl group, especially a C 1－3Perfluoroalkyl group, more preferably a linear C 1－6 Perfluoroalkyl group, especially C 1－3 Perfluoroalkyl group, specifically -CF3, -CF2CF3 or -CF2CF2CF3.

[0423] In the above formula, Rf 2 is a C 1－6 alkylene group that can be substituted with one or more fluorine atoms.

[0424] The above-mentioned C 1－6 alkylene group that can be substituted with one or more fluorine atoms, the "C 1－6 alkylene" in it can be linear or branched, preferably a linear or branched C 1－3 alkylene group, more preferably a linear C 1－3 alkylene group.

[0425] The above Rf 2 is preferably a C 1－6 alkylene group substituted with one or more fluorine atoms, more preferably a C 1－6 perfluoroalkylene group, even more preferably a C 1－3 perfluoroalkylene group.

[0426] The above C 1－6 perfluoroalkylene group can be linear or branched, preferably a linear or branched C 1－3 perfluoroalkylene group, more preferably a linear C 1－3 perfluoroalkylene group, specifically -CF2-, -CF2CF2- or -CF2CF2CF2-.

[0427] In the above formula, p is 0 or 1. In one embodiment, p is 0. In another embodiment, p is 1.

[0428] In the above formula, q is independently 0 or 1 at each occurrence. In one embodiment, q is 0. In another embodiment, q is 1.

[0429] In the above formulas (1) and (2), R F is a divalent fluorinated polyether group independently at each occurrence.

[0430] R F preferably contains a group represented by the following formula:

[0431] -(OC h1 R Fa 2h1 ) h3 -(OC h2 R Fa 2h2-2 ) h4-

[0432] [wherein:

[0433] R Fa is independently, at each occurrence, a hydrogen atom, a fluorine atom or a chlorine atom,

[0434] h1 is an integer from 1 to 6,

[0435] h2 is an integer from 4 to 8,

[0436] h3 is an integer of 0 or more,

[0437] h4 is an integer of 0 or more,

[0438] wherein the sum of h3 and h4 is 1 or more, preferably 2 or more, more preferably 5 or more, and the order of presence of each repeating unit marked with h3 and h4 and enclosed in parentheses is arbitrary in the formula.].

[0439] In one embodiment, R F may be linear or branched. R F is preferably a group represented by the following formula:

[0440] -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3R Fa 6) d -(OC2F4) e -(OCF2) f -

[0441] [wherein:

[0442] R Fa is independently, at each occurrence, a hydrogen atom, a fluorine atom or a chlorine atom,

[0443] a, b, c, d, e and f are independently integers from 0 to 200, and the sum of a, b, c, d, e and f is 1 or more. The order of presence of each repeating unit marked with a, b, c, d, e or f and enclosed in parentheses is arbitrary in the formula. Among them, when all R Fa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more.].

[0444] R Fa is preferably a hydrogen atom or a fluorine atom, more preferably a fluorine atom. Among them, when all R Fa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more.

[0445] a, b, c, d, e, and f are preferably each independently an integer from 0 to 100.

[0446] The sum of a, b, c, d, e, and f is preferably 5 or more, more preferably 10 or more, and can be, for example, 15 or more or 20 or more. The sum of a, b, c, d, e, and f is preferably 200 or less, more preferably 100 or less, further preferably 60 or less, and can be, for example, 50 or less or 30 or less.

[0447] These repeating units can be linear or branched. For example, -(OC6F 12 )- can be -(OCF2CF2CF2CF2CF2CF2)-, -(OCF(CF3)CF2CF2CF2CF2)-, -(OCF2CF(CF3)CF2CF2CF2)-, -(OCF2CF2CF(CF3)CF2CF2)-, -(OCF2CF2CF2CF(CF3)CF2)-, -(OCF2CF2CF2CF2CF(CF3))-, etc. -(OC5F 10 )- can be -(OCF2CF2CF2CF2CF2)-, -(OCF(CF3)CF2CF2CF2)-, -(OCF2CF(CF3)CF2CF2)-, -(OCF2CF2CF(CF3)CF2)-, -(OCF2CF2CF2CF(CF3))-, etc. -(OC4F8)- can be any of -(OCF2CF2CF2CF2)-, -(OCF(CF3)CF2CF2)-, -(OCF2CF(CF3)CF2)-, -(OCF2CF2CF(CF3))-, -(OC(CF3)2CF2)-, -(OCF2C(CF3)2)-, -(OCF(CF3)CF(CF3))-, -(OCF(C2F5)CF2)-, and -(OCF2CF(C2F5))-. -(OC3F6)-(i.e., R in the above formula Fa is a fluorine atom) can be any of -(OCF2CF2CF2)-, -(OCF(CF3)CF2)-, and -(OCF2CF(CF3))-. -(OC2F4)- can be any of -(OCF2CF2)- and -(OCF(CF3))-.

[0448] In one embodiment, the above repeating units are linear. By making the above repeating units linear, the surface slidability, wear durability, etc. of the surface treatment layer can be improved.

[0449] In one embodiment, the above repeating units are branched. By making the above repeating units branched, the dynamic friction coefficient of the surface treatment layer can be increased.

[0450] In one embodiment, R F may include a ring structure.

[0451] The above ring structure may be a three-membered ring, four-membered ring, five-membered ring or six-membered ring described below.

[0452]

[0453] [Wherein, * represents the bonding position.]

[0454] The above ring structure is preferably a four-membered ring, five-membered ring, or six-membered ring, more preferably a four-membered ring or a six-membered ring.

[0455] The repeating unit having a ring structure may preferably be the unit described below.

[0456]

[0457] [Wherein, * represents the bonding position.]

[0458] In one embodiment, R F is independently at each occurrence a group represented by any one of the following formulas (f1) to (f6).

[0459] -(OC3F6) d -(OC2F4) e -(f1)

[0460] [Wherein, d is an integer from 1 to 200, and e is 0 or 1.];

[0461] -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f -(f2)

[0462] [Wherein, c and d are independently integers of 0 or more and 30 or less, e and f are independently integers of 1 or more and 200 or less,

[0463] the sum of c, d, e and f is 2 or more,

[0464] the order of existence of each repeating unit with subscripts c, d, e or f enclosed in parentheses is arbitrary in the formula.];

[0465] -(R 6 -R 7 ) g -(f3)

[0466] [Wherein, R 6 is OCF2 or OC2F4,

[0467] R 7 is a group selected from OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 , or a combination of 2 or 3 groups selected from these groups,

[0468] g is an integer from 2 to 100.];

[0469] -(R 6 -R 7 ) g -R r -(R 7′ -R 6′ ) g′ -(f4)

[0470] [In the formula, R 6 is OCF2 or OC2F4,

[0471] R 7 is a group selected from OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 , or a combination of 2 or 3 groups selected from these groups,

[0472] R 6′ is OCF2 or OC2F4,

[0473] R 7′ is a group selected from OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 , or independently a combination of 2 or 3 groups selected from these groups,

[0474] g is an integer from 2 to 100,

[0475] g' is an integer from 2 to 100,

[0476] R r is

[0477]

[0478] (wherein, * represents the bonding position).].;

[0479] -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f-(f5)

[0480] [In the formula, e is an integer of 1 or more and 200 or less, a, b, c, d, and f are each independently an integer of 0 or more and 200 or less, and the order of existence of each repeating unit marked with a, b, c, d, e, or f and enclosed in parentheses is arbitrary in the formula.]

[0481] -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f -(f6)

[0482] [In the formula, f is an integer of 1 or more and 200 or less, a, b, c, d, and e are each independently an integer of 0 or more and 200 or less, and the order of existence of each repeating unit marked with a, b, c, d, e, or f and enclosed in parentheses is arbitrary in the formula.]

[0483] In the above formula (f1), d is preferably an integer of 5 to 200, more preferably an integer of 10 to 100, still more preferably an integer of 15 to 50, and for example, an integer of 25 to 35. OCF3 in the above formula (f1) is preferably (OCF2CF2CF2), (OCF(CF3)CF2), or (OCF2CF(CF3)), and more preferably (OCF2CF2CF2). In one embodiment, e is 0. In another embodiment, e is 1. (OC2F4) in the above formula (f1) is preferably (OCF2CF2) or (OCF(CF3)), and more preferably (OCF2CF2).

[0484] In the above formula (f2), e and f are each independently preferably an integer of 5 to 200, more preferably an integer of 10 to 200. In addition, the sum of c, d, e, and f is preferably 5 or more, more preferably 10 or more, and for example, may be 15 or more or 20 or more. In one embodiment, the above formula (f2) is preferably -(OCF2CF2CF2CF2) c -(OCF2CF2CF2) d -(OCF2CF2) e -(OCF2) f -the group shown. In another embodiment, the formula (f2) may be -(OC2F4) e -(OCF2) f -the group shown.

[0485] In the above formula (f3), R 6Preferably OC2F4. In the above (f3), R 7 is preferably a group selected from OC2F4, OC3F6, and OC4F8, or a combination of 2 or 3 groups independently selected from these groups, more preferably a group selected from OC3F6 and OC4F8. As a combination of 2 or 3 groups independently selected from OC2F4, OC3F6, and OC4F8, there is no particular limitation, and examples thereof include -OC2F4OC3F6-, -OC2F4OC4F8-, -OC3F6OC2F4-, -OC3F6OC3F6-, -OC3F6OC4F8-, -OC4F8OC4F8-, -OC4F8OC3F6-, -OC4F8OC2F4-, -OC2F4OC2F4OC3F6-, -OC2F4OC2F4OC4F8-, -OC2F4OC3F6OC2F4-, -OC2F4OC3F6OC3F6-, -OC2F4OC4F8OC2F4-, -OC3F6OC2F4OC2F4-, -OC3F6OC2F4OC3F6-, -OC3F6OC3F6OC2F4-, and -OC4F8OC2F4OC2F4-. In the above formula (f3), g is preferably an integer of 3 or more, more preferably 5 or more. The above g is preferably an integer of 50 or less. In the above formula (f3), OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 can be linear or branched, preferably linear. In this embodiment, the above formula (f3) is preferably -(OC2F4-OC3F6) g - or -(OC2F4-OC4F8) g -.

[0486] In the above formula (f4), R 6 , R 7 and g have the same meanings as described in the above formula (f3) and have the same embodiments. R 6′ , R 7′ and g' are respectively the same as R 6 , R 7 and g described in the above formula (f3) and have the same embodiments. R r is preferably

[0487]

[0488] [In the formula, * represents the bonding position.],

[0489] more preferably

[0490]

[0491] [In the formula, * represents a bonding position.].

[0492] In the above formula (f5), e is preferably an integer of 1 or more and 100 or less, more preferably an integer of 5 or more and 100 or less. The sum of a, b, c, d, e, and f is preferably 5 or more, more preferably 10 or more, and for example, 10 or more and 100 or less.

[0493] In the above formula (f6), f is preferably an integer of 1 or more and 100 or less, more preferably an integer of 5 or more and 100 or less. The sum of a, b, c, d, e, and f is preferably 5 or more, more preferably 10 or more, and for example, 10 or more and 100 or less.

[0494] In one embodiment, the above R F is the group represented by the above formula (f1).

[0495] In one embodiment, the above R F is the group represented by the above formula (f2).

[0496] In one embodiment, the above R F is the group represented by the above formula (f3).

[0497] In one embodiment, the above R F is the group represented by the above formula (f4).

[0498] In one embodiment, the above R F is the group represented by the above formula (f5).

[0499] In one embodiment, the above R F is the group represented by the above formula (f6).

[0500] In the above R F the ratio of e to f (hereinafter referred to as "e / f ratio") is 0.1 to 10, preferably 0.2 to 5, more preferably 0.2 to 2, further preferably 0.2 to 1.5, and further more preferably 0.2 to 0.85. By making the e / f ratio 10 or less, the wear durability of the layer obtained from the compound is further improved. The smaller the e / f ratio, the more the wear durability of the obtained layer is improved. On the other hand, by making the e / f ratio 0.1 or more, the stability of the compound can be further improved. The larger the e / f ratio, the further the stability of the compound is improved.

[0501] In the above fluorine-containing polyether group-containing compound, the number average molecular weight of the R F1 and R F2 parts is not particularly limited, for example, 500 to 30,000, preferably 1,500 to 30,000, more preferably 2,000 to 10,000. In this specification, RF1 and R F2 The number average molecular weight of is measured by 19 F-NMR.

[0502] In another embodiment, R F1 and R F2 The number average molecular weight of the part is 500 to 30,000, preferably 1,000 to 20,000, more preferably 2,000 to 15,000, even more preferably 2,000 to 10,000, and can be, for example, 3,000 to 6,000.

[0503] In a further embodiment, R F1 and R F2 The number average molecular weight of the part is 4,000 to 30,000, preferably 5,000 to 10,000, more preferably 6,000 to 10,000.

[0504] In the above formulas (1) and (2), R Si At each occurrence is independently a monovalent group containing a Si atom bonded to a hydroxyl group, a hydrolyzable group or a monovalent organic group, or a monovalent group containing a reactive organic group, and at least one R Si Is a monovalent group containing a Si atom bonded to a hydroxyl group or a hydrolyzable group, or a monovalent group containing an isocyanate group, an epoxy group or a vinyl group.

[0505] Here, the "group capable of hydrolysis" means a group capable of undergoing a hydrolysis reaction, that is, a group capable of detaching from the main skeleton of the compound by a hydrolysis reaction. Examples of the group capable of hydrolysis include -OR j , -OCOR j , -O-N=CR j 2, -NR j 2, -NHR j , -NCO, halogen (in these formulas, R j represents a substituted or unsubstituted C 1－4 alkyl), etc.

[0506] The "reactive organic group" refers to a group reactive with a substrate or a group reactive with other compounds.

[0507] In one embodiment, R Si At each occurrence is independently a reactive organic group, preferably a monovalent group containing an isocyanate group, an epoxy group or a vinyl group.

[0508] In a preferred embodiment, R Si At each occurrence is independently an isocyanate group, an epoxy group or a vinyl group.

[0509] In another embodiment, R Si is, at each occurrence, independently a monovalent group containing a Si atom bonded to a hydroxyl group, a hydrolyzable group, or a monovalent organic group.

[0510] In a preferred embodiment, R Si is, at each occurrence, independently a monovalent group containing a Si atom bonded to a hydroxyl group or a hydrolyzable group.

[0511] In a preferred embodiment, R Si is, at each occurrence, independently a group represented by the following formula (S1), formula (S2), formula (S3), formula (S4), or formula (S5):

[0512]

[0513] -SiR 11 n1 R 12 3-n1 (S2)

[0514] -SiR a1 k1 R b1 11 R c1 m1 (S3)

[0515] -CR d1 k2 R e1 12 R f1 m2 (S4)

[0516] -NR g1 R h1 (S5).

[0517] In the above formulas, R 11 is, at each occurrence, independently a hydroxyl group or a hydrolyzable group.

[0518] R 11 is preferably, at each occurrence, independently a hydrolyzable group.

[0519] R 11 is preferably, at each occurrence, independently -OR j , -OCOR j , -O-N=CR j 2, -NR j 2, -NHR j , -NCO, or a halogen (in these formulas, R j represents a substituted or unsubstituted C 1-4alkyl), more preferably -OR j (i.e., alkoxy). As R j , examples include: unsubstituted alkyl such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl; substituted alkyl such as chloromethyl. Among these, alkyl, especially unsubstituted alkyl, is preferred, and methyl or ethyl is more preferred. In one embodiment, R j is methyl, and in another embodiment, R j is ethyl.

[0520] In the above formula, R 12 is independently a monovalent organic group at each occurrence. The monovalent organic group is a monovalent organic group other than the above hydrolyzable group.

[0521] In R 12 , the monovalent organic group is preferably a C 1－20 alkyl group, more preferably a C 1－6 alkyl group, and even more preferably methyl.

[0522] In the above formula, n1 is independently an integer of 0 to 3 in each (SiR 11 n1 R 12 3－n1 ) unit. Wherein, when R Si is the group represented by formula (S1) or formula (S2), the R Si portion at the ends of formula (1) and formula (2) (hereinafter, sometimes simply referred to as the "end portion" of formula (1) and formula (2)) has at least one (SiR 11 n1 R 12 3－n1 ) unit in which n1 is 1 to 3. That is, in this end portion, all n1 are not simultaneously 0. In other words, in the end portion of formula (1) and formula (2), there is at least one Si atom bonded to a hydroxyl group or a hydrolyzable group.

[0523] n1 is independently preferably an integer of 1 to 3 in each (SiR 11 n1 R 12 3－n1 ) unit, more preferably 2 to 3, and even more preferably 3.

[0524] In the above formula, X 11 is independently a single bond or a divalent organic group at each occurrence. The divalent organic group is preferably -R 28 -O x -R 29 -(wherein, R 28 and R 29 are independently a single bond or a C1－20 Alkylene, where x is 0 or 1.). The C 1－20 The alkylene can be linear or branched, preferably linear. The C 1－20 The alkylene is preferably C 1－10 alkylene, more preferably C 1－6 alkylene, even more preferably C 1－3 alkylene.

[0525] In one embodiment, X 11 is independently at each occurrence -C 1－6 alkylene -O-C 1－6 alkylene - or -O-C 1－6 alkylene -.

[0526] In a preferred embodiment, X 11 is independently at each occurrence a single bond or a linear C 1－6 alkylene, preferably a single bond or a linear C 1－3 alkylene, more preferably a single bond or a linear C 1－2 alkylene, even more preferably a linear C 1－2 alkylene.

[0527] In the above formula, R 13 is independently at each occurrence a hydrogen atom or a monovalent organic group. The monovalent organic group is preferably C 1－20 alkyl. The C 1－20 alkyl can be linear or branched, preferably linear.

[0528] In a preferred embodiment, R 13 is independently at each occurrence a hydrogen atom or a linear C 1－6 alkyl, preferably a hydrogen atom or a linear C 1－3 alkyl, preferably a hydrogen atom or a methyl group.

[0529] In the above formula, t is independently at each occurrence an integer of 2 or more.

[0530] In a preferred embodiment, t is independently at each occurrence an integer from 2 to 10, preferably an integer from 2 to 6.

[0531] In the above formula, R 14 is independently at each occurrence a hydrogen atom, a halogen atom or -X 11 -SiR 11 n1 R 12 3－n1 The halogen atom is preferably an iodine atom, a chlorine atom or a fluorine atom, more preferably a fluorine atom. In a preferred embodiment, R 14 is a hydrogen atom.

[0532] In the above formula, R 15 is, at each occurrence, independently of the others, a single bond, an oxygen atom, an alkylene group having 1 to 6 carbon atoms or an alkoxy group having 1 to 6 carbon atoms.

[0533] In one embodiment, R 15 is, at each occurrence, independently of the others, an oxygen atom, an alkylene group having 1 to 6 carbon atoms or an alkoxy group having 1 to 6 carbon atoms.

[0534] In a preferred embodiment, R 15 is a single bond.

[0535] In one embodiment, formula (S1) is the following formula (S1-a).

[0536]

[0537] [In the formula,

[0538] R 11 , R 12 , R 13 , X 11 and n1 have the same meanings as described in the above formula (S1);

[0539] t1 and t2 are, at each occurrence, independently of the others, integers of 1 or more, preferably integers of 1 to 10, more preferably integers of 2 to 10, for example integers of 1 to 5 or integers of 2 to 5;

[0540] The order of presence of each repeating unit marked with t1 and t2 and enclosed in parentheses is arbitrary in the formula. ]

[0541] In a preferred embodiment, formula (S1) is the following formula (S1-b).

[0542]

[0543] [In the formula, R 11 , R 12 , R 13 , X 11 , n1 and t have the same meanings as described in the above formula (S1). ]

[0544] In the above formula, R a1 is, at each occurrence, independently of the others, -Z 1 -SiR 21 p1 R 22 q1 R 23 r1 .

[0545] The above Z 1Independently at each occurrence, it is an oxygen atom or a divalent organic group. Hereinafter, it is denoted as Z 1 The right side of the structure of 21 p1 R 22 q1 R 23 r1 is bonded to (SiR

[0546] In a preferred embodiment, Z 1 is a divalent organic group.

[0547] In a preferred embodiment, Z 1 does not include the case where a siloxane bond is formed with the Si atom to which Z 1 is bonded. Preferably, in formula (S3), (Si-Z 1 -Si) does not contain a siloxane bond.

[0548] The above-mentioned Z 1 is preferably C 1－6 alkylene, -(CH2) z1 -O-(CH2) z2 -(wherein, z1 is an integer from 0 to 6, for example, an integer from 1 to 6, z2 is an integer from 0 to 6, for example, an integer from 1 to 6) or -(CH2) z3 -substituted phenyl-(CH2) z4 -(wherein, z3 is an integer from 0 to 6, for example, an integer from 1 to 6, z4 is an integer from 0 to 6, for example, an integer from 1 to 6). This C 1－6 alkylene can be linear or branched, preferably linear. These groups can be substituted by one or more substituents selected from, for example, a fluorine atom, C 1－6 alkyl, C 2－6 alkenyl, and C 2－6 alkynyl, and is preferably unsubstituted.

[0549] In a preferred embodiment, Z 1 is C 1－6 alkylene or -(CH2) z3 -substituted phenyl-(CH2) z4 -, preferably -substituted phenyl-(CH2) z4 -. When Z 1 is this group, the light resistance, especially the ultraviolet resistance, is further improved.

[0550] In another preferred embodiment, the above-mentioned Z 1 is C 1－3 alkylene. In one embodiment, Z 1 can be -CH2CH2CH2-. In another embodiment, Z 1It can be -CH2CH2-.

[0551] The above R 21 is independently -Z at each occurrence 1′ -SiR 21′ p1′ R 22′ q1′ R 23′ r1′ .

[0552] The above Z 1′ is independently an oxygen atom or a divalent organic group at each occurrence. In addition, Z is hereinafter denoted as 1′ The right side of the structure is bonded to (SiR 21′ p1′ R 22′ q1′ R 23′ r1′ ).

[0553] In a preferred embodiment, Z 1′ is a divalent organic group.

[0554] In a preferred embodiment, Z 1′ does not include the case where a siloxane bond is formed with the Si atom to which Z 1′ is bonded. Preferably, (Si-Z 1′ -Si) in formula (S3) does not contain a siloxane bond.

[0555] The above Z 1′ is preferably C 1－6 alkylene, -(CH2) z1′ -O-(CH2) z2′ -(wherein, z1' is an integer from 0 to 6, for example, an integer from 1 to 6, z2' is an integer from 0 to 6, for example, an integer from 1 to 6) or -(CH2) z3′ -substituted phenylene-(CH2) z4′ -(wherein, z3' is an integer from 0 to 6, 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 can be linear or branched, preferably linear. These groups can be substituted with one or more substituents selected from, for example, a fluorine atom, C 1－6 alkyl, C 2－6 alkenyl, and C 2－6 alkynyl, preferably unsubstituted.

[0556] In a preferred embodiment, Z 1′ is C 1－6 alkylene or -(CH2) z3′ -substituted phenylene-(CH2)z4′ —, preferably —phenylene—(CH2) z4′ —. Z 1′ When it is this group, the light resistance, especially the ultraviolet resistance, of the obtained layer is further improved.

[0557] In another preferred embodiment, the above Z 1′ is C 1－3 alkylene. In one embodiment, Z 1′ can be —CH2CH2CH2—. In another embodiment, Z 1′ can be —CH2CH2—.

[0558] The above R 21′ is independently —Z 1" —SiR 22" q1" R 23" r1" .

[0559] The above Z 1" is independently an oxygen atom or a divalent organic group at each occurrence. In addition, the right side of the structure denoted as Z1" below is combined with (SiR 22" q1" R 23" r1" ).

[0560] In a preferred embodiment, Z 1" is a divalent organic group.

[0561] In a preferred embodiment, Z 1" does not include the case of forming a siloxane bond with the Si atom to which Z 1" is bonded. Preferably, (Si—Z 1" —Si) in formula (S3) does not contain a siloxane bond.

[0562] The above Z 1" is preferably C 1－6 alkylene, —(CH2) z1" —O—(CH2) z2" — (wherein, z1" is an integer from 0 to 6, for example, an integer from 1 to 6, z2" is an integer from 0 to 6, for example, an integer from 1 to 6) or —(CH2) z3" —phenylene—(CH2) z4" — (wherein, z3" is an integer from 0 to 6, for example, an integer from 1 to 6, z4" is an integer from 0 to 6, for example, an integer from 1 to 6). This C 1－6 alkylene can be linear or branched, and is preferably linear. These groups can be, for example, selected from a fluorine atom, C 1－6 alkyl, C2－6 substituted by one or more substituents in the alkenyl and C 2－6 alkynyl, preferably unsubstituted.

[0563] In a preferred embodiment, Z 1" is C 1－6 alkylene or -(CH2) z3" -phenylene-(CH2) z4" -, preferably -phenylene-(CH2) z4" -. When Z 1" is this group, the light resistance, especially the ultraviolet resistance, of the obtained layer is further improved.

[0564] In another preferred embodiment, the above-mentioned Z 1" is C 1－3 alkylene. In one embodiment, Z 1" can be -CH2CH2CH2-. In another embodiment, Z 1" can be -CH2CH2-.

[0565] The above-mentioned R 22" is independently a hydroxyl group or a hydrolyzable group at each occurrence.

[0566] The above-mentioned R 22" is preferably independently a hydrolyzable group at each occurrence.

[0567] The above-mentioned R 22" is preferably independently -OR j , -OCOR j , -O-N=CR j 2, -NR j 2, -NHR j , -NCO or halogen (in these formulas, R j represents a substituted or unsubstituted C 1－4 alkyl), more preferably -OR j (i.e., an alkoxy group). As R j , examples include: unsubstituted alkyls such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl; substituted alkyls such as chloromethyl. Among these, alkyls are preferred, especially unsubstituted alkyls, and more preferably methyl or ethyl. In one embodiment, R j is methyl, and in another embodiment, R j is ethyl.

[0568] The above-mentioned R 23" is independently a monovalent organic group at each occurrence. This monovalent organic group is a monovalent organic group other than the above-mentioned hydrolyzable group.

[0569] In the above-mentioned R23" Among them, the monovalent organic group is preferably a C 1－20 alkyl group, more preferably a C 1－6 alkyl group, and even more preferably a methyl group.

[0570] The above-mentioned q1” is independently an integer from 0 to 3 at each occurrence, and the above-mentioned r1” is independently an integer from 0 to 3 at each occurrence. In addition, the sum of q1” and r1” is 3 in the (SiR 22" q1" R 23" r1" ) unit.

[0571] The above-mentioned q1” is preferably independently an integer from 1 to 3, more preferably 2 to 3, and even more preferably 3 in each (SiR 22" q1" R 23" r1" ) unit.

[0572] The above-mentioned R 22′ is independently a hydroxyl group or a hydrolyzable group at each occurrence.

[0573] R 22′ is preferably independently a hydrolyzable group at each occurrence.

[0574] R 22′ is preferably independently -OR j , -OCOR j , -O-N=CR j 2, -NR j 2, -NHR j , -NCO or a halogen (in these formulas, R j represents a substituted or unsubstituted C 1－4 alkyl group), and more preferably -OR j (i.e., an alkoxy group). Examples of R j include: unsubstituted alkyl groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, and isobutyl; substituted alkyl groups such as chloromethyl. Among these, an alkyl group, especially an unsubstituted alkyl group, is preferred, and methyl or ethyl is more preferred. In one embodiment, R j is methyl, and in another embodiment, R j is ethyl.

[0575] The above-mentioned R 23′ is independently a monovalent organic group at each occurrence. This monovalent organic group is a monovalent organic group other than the above-mentioned hydrolyzable group.

[0576] In R 23′ , the monovalent organic group is preferably a C 1－20 alkyl group, more preferably a C1－6 An alkyl group, more preferably a methyl group.

[0577] Each occurrence of p1' is independently an integer from 0 to 3, each occurrence of q1' is independently an integer from 0 to 3, and each occurrence of r1’ is independently an integer from 0 to 3. In addition, the sum of p', q1' and r1' is 3 in the (SiR 21′ p1′ R 22′ q1′ R 23′ r1′ ) unit.

[0578] In one embodiment, p1' is 0.

[0579] In one embodiment, 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 a preferred embodiment, p1' is 3.

[0580] In one embodiment, q1' is independently an integer from 1 to 3, preferably an integer from 2 to 3, more preferably 3 in each (SiR 21′ p1′ R 22′ q1′ R 23′ r1′ ) unit.

[0581] In one embodiment, p1' is 0 and q1' is independently an integer from 1 to 3, preferably an integer from 2 to 3, more preferably 3 in each (SiR 21′ p1′ R 22′ q1′ R 23′ r1′ ) unit.

[0582] Each occurrence of the above R 22 is independently a hydroxyl group or a hydrolyzable group.

[0583] R 22 Preferably, each occurrence is independently a hydrolyzable group.

[0584] R 22 Preferably, each occurrence is independently -OR j , -OCOR j , -O-N=CR j 2, -NR j 2, -NHRj , -NCO or halogen (in these formulas, R j represents substituted or unsubstituted C 1－4 alkyl), more preferably -OR j (i.e., alkoxy). As R j , examples include: unsubstituted alkyls such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl; substituted alkyls such as chloromethyl. Among these, alkyl, especially unsubstituted alkyl, is preferred, and methyl or ethyl is more preferred. In one embodiment, R j is methyl, and in another embodiment, R j is ethyl.

[0585] The above R 23 is independently a monovalent organic group at each occurrence. The monovalent organic group is a monovalent organic group other than the above hydrolyzable group.

[0586] In R 23 , the monovalent organic group is preferably C 1－20 alkyl, more preferably C 1－6 alkyl, and even more preferably methyl.

[0587] The above p1 is independently an integer from 0 to 3 at each occurrence, q1 is independently an integer from 0 to 3 at each occurrence, and r1 is independently an integer from 0 to 3 at each occurrence. In addition, the sum of p1, q1, and r1 is 3 in the (SiR 21 p1 R 22 q1 R 23 r1 ) unit.

[0588] In one embodiment, p1 is 0.

[0589] In one embodiment, 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 a preferred embodiment, p1 is 3.

[0590] In one embodiment, q1 is independently an integer from 1 to 3, preferably an integer from 2 to 3, and more preferably 3 in each (SiR 21 p1 R 22 q1 R 23 r1 ) unit.

[0591] In one embodiment, p1 is 0, and q1 is independently an integer from 1 to 3, preferably an integer from 2 to 3, more preferably 3, in each (SiR 21 p1 R 22 q1 R 23 r1 ) unit.

[0592] [[ID=1,2]]In the above formula, R b1 is independently a hydroxyl group or a hydrolyzable group at each occurrence.

[0593] The above R b1 is preferably independently a hydrolyzable group at each occurrence.

[0594] The above R b1 is preferably independently -OR j , -OCOR j , -O-N=CR j 2, -NR j 2, -NHR j , -NCO or a halogen (in these formulas, R j represents a substituted or unsubstituted C 1－4 alkyl), more preferably -OR j (i.e., an alkoxy group). As R j , examples include: unsubstituted alkyls such as methyl, ethyl, n-propyl, isopropyl, n-butyl, and isobutyl; substituted alkyls such as chloromethyl. Among these, alkyls are preferred, especially unsubstituted alkyls, and more preferably methyl or ethyl. In one embodiment, R j is methyl, and in another embodiment, R j is ethyl.

[0595] In the above formula, R c1 is independently a monovalent organic group at each occurrence. This monovalent organic group is a monovalent organic group other than the above hydrolyzable groups.

[0596] In the above R c1 , the monovalent organic group is preferably a C 1－20 alkyl, more preferably a C 1－6 alkyl, and even more preferably methyl.

[0597] The above k1 is independently an integer from 0 to 3 at each occurrence, l1 is independently an integer from 0 to 3 at each occurrence, and m1 is independently an integer from 0 to 3 at each occurrence. In addition, the sum of k1, l1, and m1 in (SiR a1 k1 R b1 l1 R c1m1 ) It is 3 in the unit.

[0598] In one embodiment, k1 is independently an integer from 1 to 3 in each (SiR a1 k1 R b1 l1 R c1 m1 ) unit, preferably 2 or 3, more preferably 3. In a preferred embodiment, k1 is 3.

[0599] In the above formulas (1) and (2), when R Si is a group represented by formula (S3), it is preferred that at least 2 Si atoms bonded to a hydroxyl group or a hydrolyzable group are present at the terminal portions of formulas (1) and (2).

[0600] In a preferred embodiment, the group represented by formula (S3) has -Z 1 -SiR 22 q1 R 23 r1 (wherein, q1 is an integer from 1 to 3, preferably 2 or 3, more preferably 3, and 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, more preferably 3, and 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, more preferably 3, and r1" is an integer from 0 to 2). Any one of Z 1 , Z 1′ , Z 1" , R 22 , R 23 , R 22′ , R 23′ , R 22" and R 23" have the same meaning as described above.

[0601] In a preferred embodiment, when R 21′ is present in formula (S3), in at least 1, preferably in all of R 21′ , q1" is an integer from 1 to 3, preferably 2 or 3, more preferably 3.

[0602] In a preferred embodiment, when R 21In the case of at least 1, preferably all R 21 Among them, p1′ is 0, q1′ is an integer of 1 to 3, preferably 2 or 3, more preferably 3.

[0603] In a preferred embodiment, when there is R in formula (S3) a1 In the case of at least 1, preferably all R a1 Among them, p1 is 0, q1 is an integer of 1 to 3, preferably 2 or 3, more preferably 3.

[0604] In a preferred embodiment, in formula (S3), k1 is 2 or 3, preferably 3, p1 is 0, q1 is 2 or 3, preferably 3.

[0605] R d1 Is independently at each occurrence -Z 2 -CR 31 p2 R 32 q2 R 33 r2 .

[0606] Z 2 Is independently at each occurrence a single bond, an oxygen atom or a divalent organic group. In addition, Z is hereinafter denoted 2 The right side of the structure is bonded to (CR 31 p2 R 32 q2 R 33 r2 ).

[0607] In a preferred embodiment, Z 2 Is a divalent organic group.

[0608] The above-mentioned Z 2 Is preferably C 1－6 Alkylene, -(CH2) z5 -O-(CH2) z6 -(wherein, z5 is an integer of 0 to 6, for example, an integer of 1 to 6, z6 is an integer of 0 to 6, for example, an integer of 1 to 6) or -(CH2) z7 -Arylene-(CH2) z8 -(wherein, z7 is an integer of 0 to 6, for example, an integer of 1 to 6, z8 is an integer of 0 to 6, for example, an integer of 1 to 6). This C 1－6 Alkylene can be linear or branched, preferably linear. These groups can be, for example, selected from a fluorine atom, C 1－6 Alkyl, C 2－6 Alkenyl and C 2－6Substituted by one or more substituents in the alkynyl group, preferably unsubstituted.

[0609] In a preferred embodiment, Z 2 is C 1－6 alkylene or -(CH2) z7 -phenylene-(CH2) z8 -, preferably -phenylene-(CH2) z8 -. Z 2 In the case of this group, the light resistance, especially the ultraviolet resistance, of the resulting layer is further improved.

[0610] In another preferred embodiment, the above Z 2 is C 1－3 alkylene. In one embodiment, Z 2 can be -CH2CH2CH2-. In another embodiment, Z 2 can be -CH2CH2-.

[0611] R 31 is independently at each occurrence -Z 2′ -CR 32′ q2′ R 33′ r2′ .

[0612] Z 2′ is independently at each occurrence a single bond, an oxygen atom or a divalent organic group. In addition, the right side of the structure denoted as Z 2′ is bonded to (CR 32′ q2′ R 33′ r2′ ).

[0613] The above Z 2′ is preferably C 1－6 alkylene, -(CH2) z5′ -O-(CH2) z6′ -(wherein, z5' is an integer from 0 to 6, for example, an integer from 1 to 6, z6' is an integer from 0 to 6, for example, an integer from 1 to 6) or -(CH2) z7′ -phenylene-(CH2) z8′ -(wherein, z7' is an integer from 0 to 6, 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 can be linear or branched, preferably linear. These groups can be, for example, selected from a fluorine atom, C 1－6 alkyl, C 2－6 alkenyl and C 2－6Substituted by one or more substituents in the alkynyl group, preferably unsubstituted.

[0614] In a preferred embodiment, Z 2′ is C 1－6 alkylene or -(CH2) z7′ -phenylene-(CH2) z8′ -, preferably -phenylene-(CH2) z8′ -. Z 2′ In the case of this group, the light resistance, especially the ultraviolet resistance, is further improved.

[0615] In another preferred embodiment, the above Z 2′ is C 1－3 alkylene. In one embodiment, Z 2′ can be -CH2CH2CH2-. In another embodiment, Z 2′ can be -CH2CH2-.

[0616] The above R 32′ is independently at each occurrence -Z 3 -SiR 34 n2 R 35 3－n2 .

[0617] The above Z 3 is independently at each occurrence a single bond, an oxygen atom or a divalent organic group. In addition, the right side of the structure denoted as Z 3 is combined with (SiR 34 n2 R 35 3－n2 ).

[0618] In one embodiment, Z 3 is an oxygen atom.

[0619] In one embodiment, Z 3 is a divalent organic group.

[0620] The above Z 3 is preferably C 1－6 alkylene, -(CH2) z5" -O-(CH2) z6" -(wherein, z5" is an integer from 0 to 6, for example an integer from 1 to 6, z6" is an integer from 0 to 6, for example an integer from 1 to 6) or -(CH2) z7" -phenylene-(CH2) z8" -(wherein, z7" is an integer from 0 to 6, 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 C1－6 The alkylene group may be linear or branched, preferably linear. These groups may be substituted with one or more substituents selected from, for example, a fluorine atom, C 1－6 alkyl group, C 2－6 alkenyl group, and C 2－6 alkynyl group, and is preferably unsubstituted.

[0621] In a preferred embodiment, Z 3 is C 1－6 alkylene or -(CH2) z7" -phenylene-(CH2) z8" -, preferably -phenylene-(CH2) z8" -. When Z 3 is this group, the light resistance, especially the ultraviolet resistance, is further improved.

[0622] In another preferred embodiment, the above-mentioned Z 3 is C 1－3 alkylene. In one embodiment, Z 3 may be -CH2CH2CH2-. In another embodiment, Z 3 may be -CH2CH2-.

[0623] The above-mentioned R 34 is independently a hydroxyl group or a hydrolyzable group at each occurrence.

[0624] R 34 is preferably independently a hydrolyzable group at each occurrence.

[0625] R 34 is preferably independently -OR j , -OCOR j , -O-N=CR j 2, -NR j 2, -NHR j , -NCO or a halogen (in these formulas, R j represents a substituted or unsubstituted C 1－4 alkyl group), more preferably -OR j (i.e., an alkoxy group). Examples of R j include: unsubstituted alkyl groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, and isobutyl; and substituted alkyl groups such as chloromethyl. Among these, alkyl groups, especially unsubstituted alkyl groups, are preferred, and methyl or ethyl is more preferred. In one embodiment, R j is methyl, and in another embodiment, R j is ethyl.

[0626] The above-mentioned R 35Each occurrence is independently a monovalent organic group. The monovalent organic group is a monovalent organic group other than the above hydrolyzable group.

[0627] In the above R 35 the monovalent organic group is preferably a C 1－20 alkyl group, more preferably a C 1－6 alkyl group, even more preferably a methyl group.

[0628] In the above formula, n2 is independently an integer from 0 to 3 in each (SiR 34 n2 R 35 3－n2 ) unit. Wherein, when R Si is the group represented by formula (S4), at the terminal portions of formula (1) and formula (2), there is at least 1 (SiR 34 n2 R 35 3－n2 ) unit in which n2 is 1 to 3. That is, at this terminal portion, all n2 are not simultaneously 0. In other words, at the terminal portions of formula (1) and formula (2), there is at least 1 Si atom bonded to a hydroxyl group or a hydrolyzable group.

[0629] n2 is preferably an integer from 1 to 3, more preferably 2 to 3, even more preferably 3, independently in each (SiR 34 n2 R 35 3－n2 ) unit.

[0630] The above R 33′ is independently a hydrogen atom, a hydroxyl group or a monovalent organic group at each occurrence. The monovalent organic group is a monovalent organic group other than the above hydrolyzable group.

[0631] In the above R 33′ the monovalent organic group is preferably a C 1－20 alkyl group or -(C s H 2s ) t1 -(O-C s H 2s ) t2 (wherein, s is an integer from 1 to 6, preferably an integer from 2 to 4, t1 is 1 or 0, preferably 0, t2 is an integer from 1 to 20, preferably an integer from 2 to 10, more preferably an integer from 2 to 6.), more preferably a C 1－20 alkyl group, even more preferably a C 1－6 alkyl group, particularly preferably a methyl group.

[0632] In one embodiment, R 33′ is a hydroxyl group.

[0633] In another embodiment, R 33′ is a monovalent organic group, preferably a C 1－20 alkyl group, more preferably a C 1－6 alkyl group.

[0634] Each occurrence of the above q2′ is independently an integer from 0 to 3, and each occurrence of the above r2′ is independently an integer from 0 to 3. In addition, the sum of q2′ and r2′ is 3 in the (CR 32′ q2′ R 33′ r2′ ) unit.

[0635] Each occurrence of q2′ is independently preferably an integer from 1 to 3, more preferably 2 to 3, and even more preferably 3 in each (CR 32′ q2′ R 33′ r2′ ) unit.

[0636] R 32 is independently at each occurrence -Z 3 -SiR 34 n2 R 35 3－n2 . This -Z 3 -SiR 34 n2 R 35 3－n2 has the same meaning as that described in the above R 32′ .

[0637] The above R 33 is independently at each occurrence a hydrogen atom, a hydroxyl group or a monovalent organic group. This monovalent organic group is a monovalent organic group other than the above hydrolyzable group.

[0638] In the above R 33 , the monovalent organic group is preferably a C 1－20 alkyl group or -(C s H 2s ) t1 -(O-C s H 2s ) t2 (wherein s is an integer from 1 to 6, preferably an integer from 2 to 4, t1 is 1 or 0, preferably 0, t2 is an integer from 1 to 20, preferably an integer from 2 to 10, and more preferably an integer from 2 to 6). More preferably, it is a C 1－20 alkyl group, even more preferably a C 1－6 alkyl group, and particularly preferably a methyl group.

[0639] In one embodiment, R33 is a hydroxyl group.

[0640] In another embodiment, R 33 is a monovalent organic group, preferably a C 1－20 alkyl group, more preferably a C 1－6 alkyl group.

[0641] Each occurrence of the above p2 is independently an integer from 0 to 3, each occurrence of q2 is independently an integer from 0 to 3, and each occurrence of r2 is independently an integer from 0 to 3. In addition, the sum of p2, q2, and r2 is 3 in the (CR 31 p2 R 32 q2 R 33 r2 ) unit.

[0642] In one embodiment, p2 is 0.

[0643] In one embodiment, p2 is 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 a preferred embodiment, p2 is 3.

[0644] In one embodiment, q2 is independently an integer from 1 to 3, preferably an integer from 2 to 3, more preferably 3 in each (CR 31 p2 R 32 q2 R 33 r2 ) unit.

[0645] In one embodiment, p2 is 0, and q2 is independently an integer from 1 to 3, preferably an integer from 2 to 3, more preferably 3 in each (CR 31 p2 R 32 q2 R 33 r2 ) unit.

[0646] Each occurrence of the above R e1 is independently -Z 3 -SiR 34 n2 R 35 3－n2 . This -Z 3 -SiR 34 n2 R35 3－n2 has the same meaning as that described in the above R 32′ .

[0647] The above R f1 is, at each occurrence, independently a hydrogen atom, a hydroxyl group or a monovalent organic group. The monovalent organic group is a monovalent organic group other than the above hydrolyzable group.

[0648] In the above R f1 , the monovalent organic group is preferably a C 1－20 alkyl group or -(C s H 2s ) t1 -(O-C s H 2s ) t2 (wherein s is an integer from 1 to 6, preferably an integer from 2 to 4, t1 is 1 or 0, preferably 0, t2 is an integer from 1 to 20, preferably an integer from 2 to 10, more preferably an integer from 2 to 6).), more preferably a C 1－20 alkyl group, even more preferably a C 1－6 alkyl group, particularly preferably a methyl group.

[0649] In one embodiment, R f1 is a hydroxyl group.

[0650] In another embodiment, R f1 is a monovalent organic group, preferably a C 1－20 alkyl group, more preferably a C 1－6 alkyl group.

[0651] The above k2 is, at each occurrence, independently an integer from 0 to 3, l2 is, at each occurrence, independently an integer from 0 to 3, and m2 is, at each occurrence, independently an integer from 0 to 3. In addition, the sum of k2, l2 and m2 is 3 in the (CR d1 k2 R e1 l2 R f1 m2 ) unit.

[0652] In the above formulas (1) and (2), when R Si is the group represented by formula (S4), it is preferred that at least 2 Si atoms bonded to a hydroxyl group or a hydrolyzable group are present at the terminal portions of formulas (1) and (2).

[0653] In one embodiment, when R Si is the group represented by formula (S4), n2 is 1 to 3, preferably 2 or 3, more preferably 3 (SiR 34 n2 R35 3－n2 ) There are more than 2, for example, 2 to 27, preferably 2 to 9, more preferably 2 to 6, even more preferably 2 to 3, and particularly preferably 3, at each end portion of formulas (1) and (2).

[0654] In a preferred embodiment, when R is present in formula (S4) 32′ , in at least one, preferably in all R 32′ , n2 is an integer from 1 to 3, preferably 2 or 3, and more preferably 3.

[0655] In a preferred embodiment, when R is present in formula (S4) 32 , in at least one, preferably in all R 32 , n2 is an integer from 1 to 3, preferably 2 or 3, and more preferably 3.

[0656] In a preferred embodiment, when R is present in formula (S4) e1 , in at least one, preferably in all R a1 , n2 is an integer from 1 to 3, preferably 2 or 3, and more preferably 3.

[0657] In a preferred embodiment, in formula (S4), k2 is 0, l2 is 2 or 3, preferably 3, and n2 is 2 or 3, preferably 3.

[0658] The above-mentioned R g1 and R h1 are each independently, at each occurrence, -Z 4 -SiR 11 n1 R 12 3－n1 , -Z 4 -SiR a1 k1 R b1 l1 R c1 m1 , -Z 4 -CR d1 k2 R e1 l2 R f1 m2 . Among them, 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 described above.

[0659] In a preferred embodiment, R g1 and R h1 are each independently -Z 4 -SiR 11 n1 R 12 3－n1 .

[0660] The above-mentioned Z 4 is each independently a single bond, an oxygen atom or a divalent organic group at each occurrence. In addition, the right side of the structure denoted as Z 4 is bonded to (SiR 11 n1 R 12 3－n1 ).

[0661] In one embodiment, Z 4 is an oxygen atom.

[0662] In one embodiment, Z 4 is a divalent organic group.

[0663] The above-mentioned Z 4 is preferably C 1－6 alkylene, -(CH2) z5" -O-(CH2) z6" -(wherein, z5" is an integer from 0 to 6, for example an integer from 1 to 6, z6" is an integer from 0 to 6, for example an integer from 1 to 6) or -(CH2) z7" -phenylene-(CH2) z8" -(wherein, z7" is an integer from 0 to 6, for example an integer from 1 to 6, z8" is an integer from 0 to 6, for example an integer from 1 to 6). This C 1－6 alkylene can be linear or branched, preferably linear. These groups can be substituted by one or more substituents selected from, for example, a fluorine atom, C 1－6 alkyl, C 2－6 alkenyl and C 2－6 alkynyl, preferably unsubstituted.

[0664] In a preferred embodiment, Z 4 is C 1－6 alkylene or -(CH2) z7" -phenylene-(CH2) z8" -, preferably -phenylene-(CH2) z8" -. When Z 3 is this group, the light resistance, especially the ultraviolet resistance, is further improved.

[0665] In another preferred embodiment, the above-mentioned Z 4 is C 1－3 alkylene. In one embodiment, Z 4 may be -CH2CH2CH2-. In another embodiment, Z 4 may be -CH2CH2-.

[0666] In one embodiment, R Si is a group represented by formula (S2), formula (S3), formula (S4) or formula (S5). These compounds can form a surface treatment layer having high surface slidability.

[0667] In one embodiment, R Si is a group represented by formula (S3), formula (S4) or formula (S5). These compounds have a plurality of hydrolyzable groups at one end, and thus can strongly adhere to the substrate and can form a surface treatment layer having high wear durability.

[0668] In one embodiment, R Si is a group represented by formula (S3) or formula (S4). These compounds have a plurality of hydrolyzable groups branched from one Si atom or C atom at one end, and thus can form a surface treatment layer having higher wear durability.

[0669] In one embodiment, R Si is a group represented by formula (S1).

[0670] In one embodiment, R Si is a group represented by formula (S2).

[0671] In one embodiment, R Si is a group represented by formula (S3).

[0672] In one embodiment, R Si is a group represented by formula (S4).

[0673] In one embodiment, R Si is a group represented by formula (S5).

[0674] In the above formulas (1) and (2), X A can be understood as a connecting portion that connects a fluorine-containing group (R F1 and R F2 ) that mainly provides functions such as liquid repellency and slipperiness and a portion (R Si ) that provides the binding ability to the substrate. Therefore, as long as the compounds represented by formulas (1) and (2) can stably exist, the X AIt can be a single bond or any group.

[0675] In the above formula (1), α1 is an integer from 1 to 9, and β1 is an integer from 1 to 9. These α1 and β1 can vary 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 organic group, 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. Additionally, when X A is a 2-valent organic group, α1 and β1 are 1.

[0676] In the above formula (2), γ1 is an integer from 1 to 9. γ1 can vary according to the valence of X A That is, γ1 is a value obtained by subtracting 1 from the valence of X A

[0677] X A are each independently a single bond or a 2- to 10-valent organic group;

[0678] The 2- to 10-valent organic group in the above X A is preferably a 2- to 8-valent organic group. In one embodiment, the 2- to 10-valent organic group is preferably a 2- to 4-valent organic group, more preferably a 2-valent organic group. In another embodiment, the 2- to 10-valent organic group is preferably a 3- to 8-valent organic group, more preferably a 3- to 6-valent organic group.

[0679] In one embodiment, X A is a single bond or a 2-valent organic group, α1 is 1, and β1 is 1.

[0680] In one embodiment, X A is a single bond or a 2-valent organic group, and γ1 is 1.

[0681] In one embodiment, X A is a 3- to 6-valent organic group, α1 is 1, and β1 is 2 to 5.

[0682] In one embodiment, X A is a 3- to 6-valent organic group, and γ1 is 2 to 5.

[0683] In one embodiment, X A is a 3-valent organic group, α1 is 1, and β1 is 2.

[0684] In one embodiment, X A is a 3-valent organic group, and γ1 is 2.

[0685] ​X A When X is a single bond or a divalent organic group, Formula (1) and Formula (2) are represented by the following Formula (1') and Formula (2').

[0686] R F1 -X A -R Si (1’)

[0687] R Si -X A -R F2 -X A -R Si (2’)

[0688] In one embodiment, X A is a single bond.

[0689] In another embodiment, X A is a divalent organic group.

[0690] In one embodiment, as X A , for example, a single bond or a divalent organic group represented by the following formula:

[0691] -(R 51 ) p5 -(X 51 ) q5 -

[0692] [Wherein:

[0693] R 51 represents a single bond, -(CH2) s5 -, or ortho-phenylene, meta-phenylene or para-phenylene, preferably -(CH2) s5 -,

[0694] s5 is an integer from 1 to 20, preferably an integer from 1 to 6, more preferably an integer from 1 to 3, and even more preferably 1 or 2,

[0695] X 51 represents -(X 52 ) 15 -

[0696] X 52 each independently represents, at each occurrence, an atom or group selected from -O-, -S-, ortho-phenylene, meta-phenylene or para-phenylene, -C(O)O-, -Si(R 53 )2-, -(Si(R 53 )2O) m5 -Si(R 53 )2-, -CONR 54 -, -O-CONR 54 -, -NR54 - and -(CH2) n5 groups of -

[0697] R 53 each independently represents phenyl, C 1－6 alkyl or C 1－6 alkoxy at each occurrence, preferably phenyl or C 1－6 alkyl, more preferably methyl,

[0698] R 54 each independently represents a hydrogen atom, phenyl or C 1－6 alkyl (preferably methyl) at each occurrence,

[0699] m5 is an integer from 1 to 100 at each occurrence, preferably an integer from 1 to 20,

[0700] n5 is an integer from 1 to 20 at each occurrence, preferably an integer from 1 to 6, more preferably an integer from 1 to 3,

[0701] l5 is an integer from 1 to 10, preferably an integer from 1 to 5, more preferably an integer from 1 to 3,

[0702] p5 is 0 or 1,

[0703] q5 is 0 or 1,

[0704] wherein at least one of p5 and q5 is 1, and the order of presence of each repeating unit marked with p5 or q5 and enclosed in parentheses is arbitrary].

[0705] wherein X A (typically the hydrogen atom of X A ) can be substituted by one or more substituents selected from a fluorine atom, C 1－3 alkyl and C 1－3 fluoroalkyl. In a preferred embodiment, X A is not substituted by these groups.

[0706] In a preferred embodiment, the above X A are each independently -(R 51 ) p5 -(X 51 ) q5 -R 52 -. R 52 represents a single bond, -(CH2) t5 - or ortho-phenylene, meta-phenylene or para-phenylene, preferably -(CH2) t5 -. t5 is an integer from 1 to 20, preferably an integer from 2 to 6, more preferably an integer from 2 to 3. Wherein, R 52 (typically R 52The hydrogen atom) may be substituted by 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 embodiment, R 56 is not substituted by these groups.

[0707] Preferably, the above X A are each independently:

[0708] a single bond,

[0709] a C 1－20 alkylene group,

[0710] -R 51 -X 53 -R 52 -, or

[0711] -X 54 -R 5 -

[0712] [wherein, R 51 and R 52 have the same meanings as defined above,

[0713] X 53 represents

[0714] -O-,

[0715] -S-,

[0716] -C(O)O-,

[0717] -CONR 54 (wherein R

[0718] -O-CONR 54 (wherein R

[0719] -Si(R 53 )2-,

[0720] -(Si(R 53 )2O) m5 -Si(R 53 )2-,

[0721] -O-(CH2) u5 -(Si(R 53 )2O) m5 -Si(R 53 )2-,

[0722] -O-(CH2) u5 -Si(R 53 )2-O-Si(R 53 )2-CH2CH2-Si(R 53)2-O-Si(R 53 )2-,

[0723] -O-(CH2) u5 -Si(OCH3)2OSi(OCH3)2-,

[0724] -CONR 54 -(CH2) u5 -(Si(R 53 )2O) m5 -Si(R 53 )2-,

[0725] -CONR 54 -(CH2) u5 -N(R 54 )-or

[0726] -CONR 54 -(o-phenylene, m-phenylene or p-phenylene)-Si(R 53 )2-

[0727] (wherein, R 53 , R 54 and m5 have the same meanings as above,

[0728] u5 is an integer from 1 to 20, preferably an integer from 2 to 6, more preferably an integer from 2 to 3.), X 54 represents

[0729] -S-,

[0730] -C(O)O-,

[0731] -CONR 54 -、

[0732] -O-CONR 54 -、

[0733] -CONR 54 -(CH2) u5 -(Si(R 54 )2O) m5 -Si(R 54 )2-,

[0734] -CONR 54 -(CH2) u5 -N(R 54 )-、or

[0735] -CONR 54 -(o-phenylene, m-phenylene or p-phenylene)-Si(R 54 )2-

[0736] (In the formula, each symbol has the same meaning as described above.).

[0737] More preferably, the above X A are each independently:

[0738] a single bond,

[0739] C 1－20 an alkylene group,

[0740] -(CH2) s5 -X 53 -,

[0741] -(CH2) s5 -X 53 -(CH2) t5 -

[0742] -X 54 -, or

[0743] -X 54 -(CH2) t5 -

[0744] [In the formula, X 53 , X 54 , s5 and t5 have the same meaning as described above.).

[0745] More preferably, the above X A are each independently:

[0746] a single bond,

[0747] C 1－20 an alkylene group,

[0748] -(CH2) s5 -X 53 -(CH2) t5 -, or

[0749] -X 54 -(CH2) t5 -

[0750] [In the formula, each symbol has the same meaning as described above.).

[0751] In a preferred embodiment, the above X A are each independently:

[0752] a single bond,

[0753] C 1－20 an alkylene group,

[0754] -(CH2) s5 -X 53 -, or

[0755] -(CH2) s5 -X 53 -(CH2) t5 -

[0756] [wherein,

[0757] X 53 is -O-, -CONR 54 - or -O-CONR 54 -,

[0758] R 54 independently represents a hydrogen atom, a phenyl group or a C 1－6 alkyl group at each occurrence,

[0759] s5 is an integer from 1 to 20,

[0760] t5 is an integer from 1 to 20.].

[0761] In a preferred embodiment, the above X A are independently:

[0762] -(CH2) s5 -O-(CH2) t5 -

[0763] -CONR 54 -(CH2) t5 -

[0764] [wherein,

[0765] R 54 independently represents a hydrogen atom, a phenyl group or a C 1－6 alkyl group at each occurrence,

[0766] s5 is an integer from 1 to 20,

[0767] t5 is an integer from 1 to 20.].

[0768] In one embodiment, the above X A are independently:

[0769] a single bond,

[0770] C 1－20 alkylene,

[0771] -(CH2) s5 -O-(CH2) t5 -,

[0772] -(CH2) s5 -(Si(R 53 )2O) m5 -Si(R 53 )2-(CH2)t5 I.

[0773] -(CH2) s5 -O-(CH2) u5 -(Si(R 53 )2O) m5 -Si(R 53 )2-(CH2) t5 - or -(CH2) s5 -O-(CH2) t5 -Si(R 53 )2-(CH2) u5 -Si(R 53 )2-(C v H 2v )-

[0774] [wherein, R 53 , m5, s5, t5 and u5 have the same meanings as described above, v5 is an integer of 1 to 20, preferably an integer of 2 to 6, and more preferably an integer of 2 to 3].

[0775] In the above formula, -(C v H 2v )- can be linear or branched, for example, it can be -CH2CH2-, -CH2CH2CH2-, -CH(CH3)-, -CH(CH3)CH2-.

[0776] The above X A can each independently 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 (preferably a C 1－3 perfluoroalkyl group). In one embodiment, X A is unsubstituted.

[0777] In addition, the left side of each of the above X A is combined with R F1 or R F2 , and the right side is combined with R Si .

[0778] In one embodiment, X A can each independently be a group other than -O-C 1－6 alkylene.

[0779] In another embodiment, examples of X A include the following groups:

[0780]

[0781]

[0782] [In the formula, R 41 is independently selected from 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;

[0783] D is a group selected from the following groups:

[0784] -CH2O(CH2)2-、

[0785] -CH2O(CH2)3-、

[0786] -CF2O(CH2)3-、

[0787] -(CH2)2-、

[0788] -(CH2)3-、

[0789] -(CH2)4-、

[0790] -CONH-(CH2)3-、

[0791] -CON(CH3)-(CH2)3-、

[0792] -CON(Ph)-(CH2)3- (wherein Ph represents a phenyl group), and

[0793]

[0794] (In the formula, R 42 independently represents a hydrogen atom, a C 1－6 alkyl group or a C 1－6 alkoxy group, preferably represents a methyl group or a methoxy group, more preferably represents a methyl group.),

[0795] E is -(CH2) n -(n is an integer from 2 to 6),

[0796] D is combined with R F1 or R F2 in the main chain of the molecule, and E is combined with R Si .]

[0797] As specific examples of the above X A , for example, the following can be listed:

[0798] A single bond,

[0799] -CH2OCH2-,

[0800] -CH2O(CH2)2-,

[0801] -CH2O(CH2)3-,

[0802] -CH2O(CH2)4-、

[0803] -CH2O(CH2)5-、

[0804] -CH2O(CH2)6-、

[0805] -CH2O(CH2)3Si(CH3)2OSi(CH3)2(CH2)2-、

[0806] -CH2O(CH2)3Si(CH3)2OSi(CH3)2OSi(CH3)2(CH2)2-、

[0807] -CH2O(CH2)3Si(CH3)2O(Si(CH3)2O)2Si(CH3)2(CH2)2-、

[0808] -CH2O(CH2)3Si(CH3)2O(Si(CH3)2O)3Si(CH3)2(CH2)2-、

[0809] -CH2O(CH2)3Si(CH3)2O(Si(CH3)2O) 10 Si(CH3)2(CH2)2-、

[0810] -CH2O(CH2)3Si(CH3)2O(Si(CH3)2O) 20 Si(CH3)2(CH2)2-、

[0811] -CH2OCF2CHFOCF2-、

[0812] -CH2OCF2CHFOCF2CF2-、

[0813] -CH2OCF2CHFOCF2CF2CF2-、

[0814] -CH2OCH2CF2CF2OCF2-、

[0815] -CH2OCH2CF2CF2OCF2CF2-、

[0816] -CH2OCH2CF2CF2OCF2CF2CF2-、

[0817] -CH2OCH2CF2CF2OCF(CF3)CF2OCF2-、

[0818] -CH2OCH2CF2CF2OCF(CF3)CF2OCF2CF2-、

[0819] -CH2OCH2CF2CF2OCF(CF3)CF2OCF2CF2CF2-,

[0820] -CH2OCH2CHFCF2OCF2-,

[0821] -CH2OCH2CHFCF2OCF2CF2-,

[0822] -CH2OCH2CHFCF2OCF2CF2CF2-,

[0823] -CH2OCH2CHFCF2OCF(CF3)CF2OCF2-,

[0824] -CH2OCH2CHFCF2OCF(CF3)CF2OCF2CF2-,

[0825] -CH2OCH2CHFCF2OCF(CF3)CF2OCF2CF2CF2-,

[0826] -CH2OCF2CHFOCF2CF2CF2-C(O)NH-CH2-,

[0827] -CH2OCH2(CH2)7CH2Si(OCH3)2OSi(OCH3)2(CH2)2Si(OCH3)2OSi(OCH3)2(CH2)2-,

[0828] -CH2OCH2CH2CH2Si(OCH3)2OSi(OCH3)2(CH2)3-,

[0829] -CH2OCH2CH2CH2Si(OCH2CH3)2OSi(OCH2CH3)2(CH2)3-,

[0830] -CH2OCH2CH2CH2Si(OCH3)2OSi(OCH3)2(CH2)2-,

[0831] -CH2OCH2CH2CH2Si(OCH2CH3)2OSi(OCH2CH3)2(CH2)2-,

[0832] -(CH2)2-Si(CH3)2-(CH2)2-,

[0833] -CH2-,

[0834] -(CH2)2-,

[0835] -(CH2)3-,

[0836] -(CH2)4-,

[0837] -(CH2)5-、

[0838] -(CH2)6-、

[0839] -CO-、

[0840] -CONH-、

[0841] -CONH-CH2-、

[0842] -CONH-(CH2)2-、

[0843] -CONH-(CH2)3-、

[0844] -CONH-(CH2)4-、

[0845] -CONH-(CH2)5-、

[0846] -CONH-(CH2)6-、

[0847] -CON(CH3)-CH2-、

[0848] -CON(CH3)-(CH2)2-、

[0849] -CON(CH3)-(CH2)3-、

[0850] -CON(CH3)-(CH2)4-、

[0851] -CON(CH3)-(CH2)5-、

[0852] -CON(CH3)-(CH2)6-、

[0853] -CON(Ph)-CH2-(where Ph represents phenyl)、

[0854] -CON(Ph)-(CH2)2-(where Ph represents phenyl)、

[0855] -CON(Ph)-(CH2)3-(where Ph represents phenyl)、

[0856] -CON(Ph)-(CH2)4-(where Ph represents phenyl)、

[0857] -CON(Ph)-(CH2)5-(where Ph represents phenyl)、

[0858] -CON(Ph)-(CH2)6-(where Ph represents phenyl)、

[0859] -CONH-(CH2)2NH(CH2)3-、

[0860] -CONH-(CH2)6NH(CH2)3-、

[0861] -CH2O-CONH-(CH2)3-、

[0862] -CH2O-CONH-(CH2)6-、

[0863] -S-(CH2)3-、

[0864] -(CH2)2S(CH2)3-、

[0865] -CONH-(CH2)3Si(CH3)2OSi(CH3)2(CH2)2-、

[0866] -CONH-(CH2)3Si(CH3)2OSi(CH3)2OSi(CH3)2(CH2)2-、

[0867] -CONH-(CH2)3Si(CH3)2O(Si(CH3)2O)2Si(CH3)2(CH2)2-、

[0868] -CONH-(CH2)3Si(CH3)2O(Si(CH3)2O)3Si(CH3)2(CH2)2-、

[0869] -CONH-(CH2)3Si(CH3)2O(Si(CH3)2O) 10 Si(CH3)2(CH2)2-、

[0870] -CONH-(CH2)3Si(CH3)2O(Si(CH3)2O) 20 Si(CH3)2(CH2)2-、

[0871] -C(O)O-(CH2)3-、

[0872] -C(O)O-(CH2)6-、

[0873] -CH2-O-(CH2)3-Si(CH3)2-(CH2)2-Si(CH3)2-(CH2)2-、

[0874] -CH2-O-(CH2)3-Si(CH3)2-(CH2)2-Si(CH3)2-CH(CH3)-、

[0875] -CH2-O-(CH2)3-Si(CH3)2-(CH2)2-Si(CH3)2-(CH2)3-、

[0876] -CH2-O-(CH2)3-Si(CH3)2-(CH2)2-Si(CH3)2-CH(CH3)-CH2-

[0877] -OCH2-,

[0878] -O(CH2)3-,

[0879] -OCFHCF2-,

[0880] etc.

[0881] In yet another embodiment, X A is independently, respectively, a group of the formula: -(R 16 ) x1 -(CFR 17 ) y1 -(CH2) z1 -. In the formula, x1, y1, and z1 are independently integers from 0 to 10, the sum of x1, y1, and z1 is 1 or more, and the order of existence of each repeating unit enclosed in parentheses is arbitrary in the formula.

[0882] In the above formula, R 16 is independently, respectively, an oxygen atom, a phenylene group, a carbazolylene group, -NR 18 - (wherein R 18 represents a hydrogen atom or an organic group) or a divalent organic group. Preferably, R 18 is an oxygen atom or a divalent polar group.

[0883] As the above "divalent polar group", there is no particular limitation, and examples thereof include -C(O)-, -C(=NR 19 )-, and -C(O)NR 19 - (in these formulas, R 19 represents a hydrogen atom or a lower alkyl group). The "lower alkyl group" is, for example, an alkyl group having 1 to 6 carbon atoms, such as a methyl group, an ethyl group, or a n-propyl group, and they may be substituted with one or more fluorine atoms.

[0884] In the above formula, R 17 is independently, respectively, a hydrogen atom, a fluorine atom, or a lower fluoroalkyl group at each occurrence, and is preferably a fluorine atom. The "lower fluoroalkyl group" is, for example, a fluoroalkyl group having 1 to 6 carbon atoms, preferably 1 to 3 carbon atoms, preferably a perfluoroalkyl group having 1 to 3 carbon atoms, more preferably a trifluoromethyl group or a pentafluoroethyl group, and further preferably a trifluoromethyl group.

[0885] In yet another embodiment, as an example of X A , the following groups can be cited:

[0886]

[0887] [In the formula,

[0888] R 41 are each 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;

[0889] Among each X A group, several of the Ts are the following groups bonded to the R F1 or R F2 of the main molecular chain:

[0890] -CH2O(CH2)2-,

[0891] -CH2O(CH2)3-,

[0892] -CF2O(CH2)3-,

[0893] -(CH2)2-,

[0894] -(CH2)3-,

[0895] -(CH2)4-,

[0896] -CONH-(CH2)3-,

[0897] -CON(CH3)-(CH2)3-,

[0898] -CON(Ph)-(CH2)3- (wherein Ph represents a phenyl group), or

[0899]

[0900] [In the formula, R 42 each independently represents a hydrogen atom, a C 1－6 alkyl group, or a C 1－6 alkoxy group, preferably represents a methyl group or a methoxy group, more preferably represents a methyl group.],

[0901] When several other Ts are bonded to the R Si of the main molecular chain, the remaining Ts are each independently a methyl group, a phenyl group, a C 1－6 alkoxy group, a radical scavenging group, or an ultraviolet absorbing group.

[0902] The radical scavenging group is not particularly limited as long as it is a group capable of scavenging radicals generated by light irradiation. For example, residues of benzophenones, benzotriazoles, benzoates, phenyl salicylates, crotonic acids, malonic esters, organic acrylates, hindered amines, hindered phenols, or triazines can be cited.

[0903] The ultraviolet absorbing group is not particularly limited as long as it can absorb ultraviolet rays. For example, it can include residues of benzotriazoles, hydroxydibenzophenones, esters of substituted and unsubstituted benzoic acids or salicylic acid compounds, acrylate esters or alkoxycinnamate esters, oxamides, oxanilides, benzoxazinones, and benzoxazoles.

[0904] In a preferred embodiment, examples of the preferred radical scavenging group or ultraviolet absorbing group include:

[0905]

[0906] In this embodiment, X A is independently an organic group with a valence of 3 to 10.

[0907] In another embodiment, examples of X A include the following groups:

[0908]

[0909] [In the formula, R 25 , R 26 and R 27 are independently organic groups with a valence of 2 to 6,

[0910] R 25 is combined with at least one R F1 , R 26 and R 27 are respectively combined with at least one R Si .]

[0911] In one embodiment, the above R 25 is a single bond, C 1－20 alkylene, C 3－20 cycloalkylene, C 5－20 arylene, -R 57 -X 58 -R 59 -, -X 58 -R 59 - or -R 57 -X 58 -. The above, R 57 and R 59 are independently a single bond, C 1－20 alkylene, C 3－20 cycloalkylene or C 5－20 arylene. The above X 58 is -O-, -S-, -CO-, -O-CO- or -COO-.

[0912] In one embodiment, the above R 26 and R27 Each is independently a hydrocarbon group, or a group having at least 1 atom selected from N, O, and S in the end or main chain of a hydrocarbon, and preferably exemplified by C 1－6 alkyl, -R 36 -R 37 -R 36 -, -R 36 -CHR 38 2-, etc. Among them, R 36 Each is independently a single bond or an alkyl group having 1 to 6 carbon atoms, preferably an alkyl group having 1 to 6 carbon atoms. R37 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 -. Among them, R 45 Each is independently an alkyl group having 1 to 6 carbon atoms. R 46 is N, O, or S, preferably O.

[0913] In this embodiment, X A Each is independently an organic group having a valence of 3 to 10.

[0914] In another embodiment, as an example of X A , the following groups can be exemplified:

[0915]

[0916] [In the formula, X a is a single bond or a divalent organic group.]

[0917] The above X a is a single bond or a divalent linking group directly bonded to the isocyanuric acid ring. As X a , it is preferably a single bond, an alkylene group, or a divalent group containing at least 1 kind of bond selected from an ether bond, an ester bond, an amide bond, and a thioether bond, more preferably a single bond, an alkylene group having 1 to 10 carbon atoms, or a divalent hydrocarbon group having 1 to 10 carbon atoms and containing at least 1 kind of bond selected from an ether bond, an ester bond, an amide bond, and a thioether bond.

[0918] As X a , it is more preferably a group represented by the following formula:

[0919] -(CX 121 X 122 ) x1 -(X a1 ) y1 -(CX 123 X124 ) z1 -

[0920] (wherein, X 121 ~X 124 are each independently H, F, OH, or -OSi(OR 121 )3 (wherein, the three Rs 121 are each independently an alkyl group having 1 to 4 carbon atoms).),

[0921] 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 combined with CX 121 X 122 ).),

[0922] x1 is an integer from 0 to 10, y1 is 0 or 1, and z1 is an integer from 1 to 10.).

[0923] As the above X a1 , it is preferably -O- or -C(=O)O-.

[0924] As the above X a , it is particularly preferably a group represented by the following formula:

[0925] -(CF2) m11 -(CH2) m12 -O-(CH2) m13 -

[0926] (wherein, 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.).

[0927] -(CF2) m14 -(CH2) m15 -O-CH2CH(OH)-(CH2) m16 -

[0928] (wherein, 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.).

[0929] -(CF2) m17 -(CH2) m18 -

[0930] (wherein, m17 is an integer from 1 to 3, m18 is an integer from 1 to 3.).

[0931] -(CF2) m19 -(CH2) m20-O-CH2CH(OSi(OCH3)3)-(CH2) m21 -

[0932] (wherein, m19 is an integer from 1 to 3, m20 is an integer from 1 to 3, and m21 is an integer from 1 to 3), or

[0933] -(CH2) m22 -[[]]

[0934] (wherein, m22 is an integer from 1 to 3).

[0935] As the above X a There is no particular limitation. Specifically, examples include -CH2-, -C2H4-, -C3H6-, -C4H8-, -C4H8-O-CH2-, -CO-O-CH2-CH(OH)-CH2-, -(CF2) n5 -(n5 is an integer from 0 to 4), -(CF2) n5 -(CH2) m5 -(n5 and m5 are each independently an integer from 0 to 4), -CF2CF2CH2OCH2CH(OH)CH2-, -CF2CF2CH2OCH2CH(OSi(OCH3)3)CH2-, etc.

[0936] In this embodiment, X A are each independently a divalent or trivalent organic group.

[0937] The fluorinated polyether group-containing silane compound represented by the above formula (1) or formula (2) is not particularly limited and may have an average molecular weight of 5×10 2 to 1×10 5 . Among this range, from the viewpoint of wear durability, it preferably has an average molecular weight of 2,000 to 32,000, more preferably 2,500 to 12,000. Herein, the "average molecular weight" refers to the number-average molecular weight, and the "average molecular weight" is a value measured by 19 F-NMR.

[0938] In one embodiment, the composition of the present invention contains the compound represented by formula (1).

[0939] In one embodiment, the composition of the present invention contains the compound represented by formula (1) and does not contain the compound represented by formula (2).

[0940] In another embodiment, the composition of the present invention contains the compound represented by formula (1) and the compound represented by formula (2).

[0941] When the composition of the present invention contains the compound represented by formula (1) and the compound represented by formula (2), the compound represented by formula (2) can preferably be 35 mol% or less, more preferably 30 mol% or less, still more preferably 20 mol% or less, further more preferably 15 mol% or less, particularly preferably 10 mol% or less, for example 5 mol% or less, 3 mol% or less, 1 mol% or less, or 0.1 mol% or less, based on the total of the compound represented by formula (1) and the compound represented by formula (2). By making the amount of the compound represented by formula (2) within the above range, a layer with a relatively low polar component on the surface can be obtained. In addition, based on the total of the compound represented by formula (1) and the compound represented by formula (2), the compound represented by formula (2) can be, for example, 0.01 mol% or more, 0.1 mol% or more, 0.2 mol% or more, 0.5 mol% or more, 1 mol% or more, 2 mol% or more, or 5 mol% or more. Based on the total of the compound represented by formula (1) and the compound represented by formula (2), the compound represented by formula (2) is preferably 0.01 mol% or more and 35 mol% or less, more preferably 0.01 mol% or more and 30 mol% or less, still more preferably 0.01 mol% or more and 20 mol% or less, further more preferably 0.01 mol% or more and 10 mol% or less, and can be, for example, 0.1 mol% or more and 30 mol% or less, 0.2 mol% or more and 20 mol% or less, 0.5 mol% or more and 10 mol% or less.

[0942] The above-mentioned compound represented by formula (1) or (2) can be obtained by, for example, known methods, such as the methods described in International Patent Publication No. 97 / 07155, Japanese Patent Application Laid-Open No. 2008-534696, Japanese Patent Application Laid-Open No. 2014-218639, Japanese Patent Application Laid-Open No. 2017-82194, etc.

[0943] (Composition)

[0944] In the composition of the present invention, the content of the fluorine-containing liquid-repellent compound (B) can preferably be 0.1% by mass or more, more preferably 0.5% by mass or more, still more preferably 1.0% by mass or more, for example 5.0% by mass or more, 10.0% by mass or more, or 15.0% by mass or more, based on the total of the crosslinkable compound (A) and the fluorine-containing liquid-repellent compound (B). In addition, the content of the fluorine-containing liquid-repellent compound (B) can preferably be 90.0% by mass or less, more preferably 50.0% by mass or less, still more preferably 30.0% by mass or less, particularly preferably 20.0% by mass or less, for example 15.0% by mass or less, 10.0% by mass or less, 5.0% by mass or less, or 3.0% by mass or less, based on the total of the crosslinkable compound (A) and the fluorine-containing liquid-repellent compound (B).

[0945] In one embodiment, in the composition of the present invention, the content of the fluorine-containing liquid-repellent compound (B) can preferably be 0.1 to 90.0% by mass, more preferably 0.5 to 50.0% by mass, still more preferably  1.0 to 30.0% by mass, for example, 0.1 to 30.0% by mass, 0.1 to 20.0% by mass, 0.1 to 15.0% by mass, 0.5 to 30.0% by mass, 0.5 to 20.0% by mass, 0.5 to 15.0% by mass, 1.0 to 20.0% by mass, or 0.1 to 15.0% by mass, relative to the total of the crosslinkable compound (A) and the fluorine-containing liquid-repellent compound (B).

[0946] The F / Si ratio of the surface of the layer formed from the composition of the present invention can preferably be 3.0 or more, more preferably 5.0 or more, still more preferably 8.0 or more, for example, 10.0 or more. The upper limit of the F / Si ratio of the surface of the layer formed from the composition of the present invention is not particularly limited, and the larger the better, and can be 30.0 or less, 20.0 or less, or 15.0 or less.

[0947] In one embodiment, the F / Si ratio of the surface of the layer formed from the composition of the present invention can preferably be 5.0 to 30.0, more preferably 5.0 to 20.0, still more preferably 8.0 to 20.0, for example, 8.0 to 15.0.

[0948] The sliding angle of water on the surface of the layer formed from the composition of the present invention can preferably be 60° or less, more preferably 50° or less, still more preferably 30° or less, further more preferably 25° or less, and particularly preferably 20° or less. The lower limit of the sliding angle of water on the surface of the layer formed from the composition of the present invention is not particularly limited, and the smaller the better, and can be 1° or more, 5° or more, or 10° or more, for example.

[0949] The sliding angle of hexadecane on the surface of the layer formed from the composition of the present invention can preferably be 35° or less, more preferably 30° or less, still more preferably 25° or less, further more preferably 20° or less. The lower limit of the sliding angle of hexadecane on the surface of the layer formed from the composition of the present invention is not particularly limited, and the smaller the better, and can be 1° or more, 5° or more, or 10° or more, for example.

[0950] Method for measuring the sliding angle

[0951] A liquid is dropped from a microsyringe onto the surface treatment layer side of a horizontally placed surface treatment sample, and the sample is tilted at a rate of 2° per second to 90°, and the situation of the liquid droplet is observed. The angle at which the liquid droplet has moved 5 mm is taken as the sliding angle. Regarding the amount of the liquid droplet, 20 μL for water and 5 μL for hexadecane.

[0952] The composition of the present invention may further contain one or more other components selected from organic solvents, water, and catalysts.

[0953] Examples of the above-mentioned organic solvents include fluorine-containing organic solvents or non-fluorine-containing organic solvents.

[0954] Examples of the above-mentioned fluorine-containing organic solvents include perfluorohexane, perfluorooctane, perfluorodimethylcyclohexane, perfluoronaphthalene, perfluoroalkyl ethanol, perfluorobenzene, perfluorotoluene, perfluoroalkylamine (such as Fluorinert (trade name)), perfluoroalkyl ether, perfluorobutyl tetrahydrofuran, polyfluoroaliphatic hydrocarbon (such as ASAHIKLIN AC6000 (trade name)), hydrochlorofluorocarbon (such as ASAHIKLIN AK-225 (trade name)), hydrofluoroether (such as NOVEC (trade name), HFE-7100 (trade name), HFE-7300 (trade name)), 1,1,2,2,3,3,4-heptafluorocyclopentane, fluorine-containing alcohol, perfluoroalkyl bromide, perfluoroalkyl iodide, perfluoropolyether (such as Krytox (trade name), DEMNUM (trade name), Fomblin (trade name)), 1,3-bis(trifluoromethyl)benzene, 2-(perfluoroalkyl)ethyl methacrylate, 2-(perfluoroalkyl)ethyl acrylate, perfluoroalkyl ethylene, chlorofluorocarbon 134a, and hexafluoropropylene oligomer.

[0955] Examples of the above-mentioned non-fluorine-containing organic solvents include acetone, methyl isobutyl ketone, cyclohexanone, 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, pentane, hexane, heptane, octane, dichloromethane, chloroform, carbon tetrachloride, dichloroethane, carbon disulfide, benzene, toluene, xylene, nitrobenzene, diethyl ether, dimethoxyethane, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, ethyl acetate, butyl acetate, dimethylformamide, dimethyl sulfoxide, 2-butanone, acetonitrile, benzonitrile, butanol, 1-propanol, 2-propanol, ethanol, methanol, and diacetone alcohol.

[0956] Among them, as the above-mentioned organic solvents, methyl isobutyl ketone, propylene glycol monomethyl ether, hexadecane, butyl acetate, acetone, 2-butanone, cyclohexanone, ethyl acetate, diacetone alcohol, ethanol, or 2-propanol is preferred.

[0957] The above-mentioned organic solvents can be used alone or in combination of two or more.

[0958] The above-mentioned organic solvents are preferably used in the composition in the range of 10 to 99% by mass, more preferably in the range of 30 to 95% by mass, and even more preferably in the range of 50 to 95% by mass.

[0959] Examples of the above-mentioned catalysts include acids (such as hydrochloric acid, acetic acid, trifluoroacetic acid, etc.), bases (such as ammonia, triethylamine, diethylamine, etc.), transition metals (such as Ti, Ni, Sn, etc.).

[0960] The above catalyst promotes the hydrolysis and dehydration condensation of the composition of the present invention and promotes the surface treatment reaction.

[0961] The composition of the present invention is preferably a surface treatment agent.

[0962] Hereinafter, the article of the present invention will be described.

[0963] In one embodiment, the article of the present invention includes a substrate and a layer (surface treatment layer) formed on the surface of the substrate from the composition of the present invention.

[0964] In another embodiment, the article of the present invention includes a substrate and a layer (surface treatment layer) formed from the above composition of the present invention containing component (A): a crosslinkable compound and component (B): a fluorine-containing liquid-repellent compound,

[0965] satisfying the following formula:

[0966] P b -P c >0

[0967] [In the formula:

[0968] P b is the value of the polar component ratio in the surface free energy of the layer formed from the above fluorine-containing liquid-repellent compound,

[0969] P c is the value of the polar component ratio in the surface free energy of the layer formed from the above composition.].

[0970] P b -P c The value can preferably be 3.0 or more, more preferably 3.6 or more, still more preferably 5.0 or more, and further more preferably 8.0 or more. By making the value of P b -P c within this range, the liquid repellency and lubricity of the layer are improved.

[0971] In another embodiment, the article of the present invention includes a substrate and a layer (surface treatment layer) formed from the above composition of the present invention containing component (A): a crosslinkable compound and component (B): a fluorine-containing liquid-repellent compound, and the polar component ratio in the surface free energy of the above layer is 20.0% or less.

[0972] The polar component ratio in the surface free energy of the above layer can preferably be 20.0% or less, more preferably 10.0% or less, still more preferably 8.0% or less, and further more preferably 5.0% or less. By making the polar component ratio in the surface free energy of the above layer within this range, the liquid repellency and lubricity of the layer are improved.

[0973] In a preferred embodiment, the F / Si ratio of the surface of the layer formed from the composition of the present invention in each of the above embodiments may preferably be 3.0 or more, more preferably 5.0 or more, still more preferably 8.0 or more, for example 10.0 or more. The upper limit of the F / Si ratio of the surface of the layer formed from the composition of the present invention is not particularly limited, and the larger the better, and it may be 30.0 or less, 20.0 or less, or 15.0 or less.

[0974] In one embodiment, the F / Si ratio of the surface of the layer formed from the composition of the present invention may preferably be 5.0 to 30.0, more preferably 5.0 to 20.0, still more preferably 8.0 to 20.0, for example 8.0 to 15.0.

[0975] In a preferred embodiment, the water sliding angle of the layer formed from the composition of the present invention in each of the above embodiments may preferably be 60° or less, more preferably 50° or less, still more preferably 30° or less, further more preferably 25° or less, and particularly preferably 20° or less. The lower limit of the water sliding angle of the layer formed from the composition of the present invention is not particularly limited, and the smaller the better, and it may be 1° or more, 5° or more, or 10° or more, for example.

[0976] In a preferred embodiment, the hexadecane sliding angle of the layer formed from the composition of the present invention in each of the above embodiments may preferably be 35° or less, more preferably 30° or less, still more preferably 25° or less, further more preferably 20° or less. The lower limit of the water sliding angle of the layer formed from the composition of the present invention is not particularly limited, and the smaller the better, and it may be 1° or more, 5° or more, or 10° or more, for example.

[0977] The substrates that can be used in the present invention can be composed of, for example, glass, resin (natural or synthetic resin, for example, can be conventional plastic materials), metal, ceramic, semiconductor (such as silicon, germanium), fiber (fabric, non-woven fabric, etc.), fur, leather, wood, porcelain, stone, etc., building components, sanitary products, and any suitable materials.

[0978] In a preferred embodiment, the above substrate is glass, resin or metal, preferably glass.

[0979] As the above glass, sapphire glass, soda-lime glass, alkali-silicate-aluminate glass, borosilicate glass, non-alkali glass, crystal glass, quartz glass are preferred, and chemically strengthened soda-lime glass, chemically strengthened alkali-silicate-aluminate glass, and chemically bonded borosilicate glass are particularly preferred.

[0980] For example, when the article to be manufactured is an optical component, the material forming the surface of the substrate can be a material for optical components, such as glass or transparent plastic, etc. In addition, when the article to be manufactured is an optical component, certain layers (or films) can also be provided on the surface (outermost layer) of the substrate. For example, a hard coat layer, an antireflection layer, etc. can be formed. In the antireflection layer, either a single-layer antireflection layer or a multi-layer antireflection layer can be used. As examples of inorganic substances that can be used for the antireflection layer, SiO2, SiO, ZrO2, TiO2, TiO, Ti2O3, Ti2O5, Al2O3, Ta2O5, Ta3O5, Nb2O5, HfO2, Si3N4, CeO2, MgO, Y2O3, SnO2, MgF2, WO3, etc. can be cited. These inorganic substances can be used alone or in combination of two or more of these (for example, as a mixture). When forming a multi-layer antireflection layer, SiO2 and / or SiO is preferably used in its outermost layer. When the article to be manufactured is an optical glass component for a touch screen, a thin film using a transparent electrode, such as indium tin oxide (ITO), indium zinc oxide, etc., can be provided on a part of the surface of the substrate (glass). In addition, the substrate can have an insulating layer, an adhesive layer, a protective layer, a decorative frame layer (I-CON), a fogging film layer, a hard coating film layer, a polarizing film, a retardation film, and a liquid crystal display module, etc., according to its specific requirements, etc.

[0981] The shape of the above-mentioned substrate is not particularly limited. For example, it can be in the form of a plate, a film, or other forms. In addition, the surface area of the substrate on which the surface treatment layer is to be formed only needs to be at least a part of the substrate surface, and can be appropriately determined according to the use and specific requirements of the article to be manufactured, etc.

[0982] The article of the present invention can be manufactured by forming a layer of the composition of the present invention on the surface of the above-mentioned substrate and subjecting the layer to post-treatment as needed, thereby forming a layer from the composition of the present invention.

[0983] The formation of the layer of the composition of the present invention can be carried out by applying the above-mentioned composition in a manner covering the surface of the substrate. The covering method is not particularly limited. For example, a wet covering method and a dry covering method can be used.

[0984] As examples of the wet covering method, dip coating, bar coating, spin coating, flow coating, spray coating, roll coating, gravure coating, and similar methods can be cited. The wet covering method is preferably bar coating, spin coating, flow coating, or roll coating.

[0985] Examples of dry coating methods include vapor deposition (usually vacuum vapor deposition), sputtering, CVD, and similar methods. Specific examples of vapor deposition methods (usually vacuum vapor deposition methods) include resistance heating, high-frequency heating using electron beams, microwaves, etc., ion beams, and similar methods. Specific examples of CVD methods include plasma CVD, optical CVD, thermal CVD, and similar methods.

[0986] Furthermore, coating using an atmospheric pressure plasma method can also be performed.

[0987] When using the dry coating method, the composition of the present invention can be directly used for the dry coating method or diluted with the above-mentioned organic solvent and then used for the dry coating method.

[0988] Regarding the formation of the layer of the composition of the present invention, it is preferably carried out in such a manner that the composition of the present invention coexists with a catalyst for hydrolysis and dehydration condensation in the layer. Simply put, in the case of using the wet coating method, after diluting the composition of the present invention with a solvent, before applying it to the surface of the substrate, a catalyst is added to the diluted solution of the composition of the present invention. In the case of using the dry coating method, the composition of the present invention added with a catalyst can be directly subjected to vapor deposition (usually vacuum vapor deposition) treatment, or vapor deposition (usually vacuum vapor deposition) treatment can be carried out using a granular material in which the composition of the present invention added with a catalyst is impregnated in a metal porous body such as iron or copper.

[0989] Any suitable acid or base can be used as the catalyst. As an acid catalyst, for example, hydrochloric acid, acetic acid, formic acid, trifluoroacetic acid, etc. can be used. In addition, as a base catalyst, for example, ammonia, organic amines, etc. can be used.

[0990] The surface treatment layer contained in the article of the present invention has synovial fluid properties. In addition, in the above surface treatment layer, in addition to high synovial fluid properties, depending on the composition of the composition used, it can also have antibacterial properties, water repellency, oil repellency, antifouling properties (for example, preventing the attachment of dirt such as fingerprints), waterproof properties (preventing water from entering electronic components, etc.), surface slipperiness (or lubricity, for example, the wiping property of dirt such as fingerprints, excellent touch for fingers), etc., and can be suitably used as a functional thin film.

[0991] The article of the present invention is useful in applications that require maintaining synovial fluid properties even in long-term use under severe environmental conditions such as outdoors.

[0992] In a preferred embodiment, the article of the present invention is useful for glass for vehicles, ships or aircraft, or mirror glass, such as automotive glass, automotive door mirrors or automotive front hood mirrors, etc., or glass for in-vehicle cameras and automotive sensors, etc. In addition, it is useful for substrates for outdoor applications such as glass for monitors, corner reflectors, surfaces of solar panels, wind turbine blades, and outer walls of buildings.

[0993] Therefore, the present invention also relates to an optical material having the above surface treatment layer on the outermost layer.

[0994] As the optical material, in addition to the optical materials related to the displays exemplified later, various optical materials are preferably listed: for example, cathode ray tubes (CRT; for example, personal computer monitors), liquid crystal displays, plasma displays, organic EL displays, inorganic thin film EL dot matrix displays, rear projection displays, fluorescent display tubes (VFD), field emission displays (FED; Field Emission Display), etc., or protective plates of these displays, or materials having an antireflection film treatment applied to the surfaces thereof.

[0995] The article of the present invention is not particularly limited and may be an optical component. Examples of optical components may include the examples listed below: lenses such as glasses; front protective plates, antireflection plates, polarizing plates, antiglare plates of displays such as PDP and LCD; touch screen sheets of devices such as mobile phones and portable information terminals; optical disk surfaces of optical disks such as Blu-ray (registered trademark) disks, DVD disks, CD-R, and MO; optical fibers; display surfaces of watches, etc.

[0996] In addition, the article of the present invention may also be a medical device or medical material.

[0997] The thickness of the above layer is not particularly limited and may be, for example, 1 nm or more, 10 nm or more, or 100 nm or more. In addition, the thickness of the above layer is not particularly limited and may be 1000 nm or less, 500 nm or less, or 100 nm or less.

[0998] The above has elaborated in detail on the composition and article of the present invention. It should be noted that the composition and article of the present invention are not limited to the above examples.

[0999] Examples

[1000] Hereinafter, the composition of the present invention will be described based on examples, but the present invention is not limited to the following examples.

[1001] As component (A) and component (B), the following compounds were prepared.

[1002] (A-1)

[1003]

[1004] (A-2)

[1005]

[1006] (B-1)~(B-3)

[1007]

[1008] (B-1): PFPE = CF3CF2CF2-(OCF2CF2CF2) n -OCF2CF2CH2-Mn2000

[1009] (B-2): PFPE = CF3CF2CF2-(OCF2CF2CF2) n -OCF2CF2CH2-Mn4000

[1010] (B-3): PFPE = CF3(OCF2CF2) n (OCF2) m OCF2CH2-Mn4000 n / m = 0.92

[1011] (B-4)~(B-6)

[1012]

[1013] (B-4): PFPE = CF3CF2CF2-(OCF2CF2CF2) n -OCF2CF2-Mn4000

[1014] (B-5): PFPE = CF3(OCF2CF2) n (OCF2) m -OCF2-Mn4000 n / m = 0.68

[1015] (B-6): PFPE = CF3CF2CF2(OCF(CF3)CF2) n OCF(CF3)-Mn4000 Examples 1 to 13

[1016] Preparation of surface treatment agents 1 to 5

[1017] The above components (A) and (B) were dissolved in a mixture of ethanol (2.8 g), Novec 7200 (0.01 g), and 0.01 M hydrochloric acid (0.5 g) in a total amount of 17.3 wt% according to the ratios shown in Table 2, and stirred at 30 °C for 1 hour. The stirred solution was diluted 4-fold with ethanol to prepare surface treatment agents 1 to 5.

[1018] Preparation of Surface Treatment Agents 6 to 11

[1019] The above components (A) and (B) were dissolved in hydrofluoroether (manufactured by 3M Company, Novec HFE7200) (4.1 g), isopropanol (0.7 g), 0.01 M hydrochloric acid (0.005 g), and water (0.037 g) in a total amount of 4.3 wt% according to the ratios shown in Table 2, and stirred at 50 °C for about 1 hour to obtain surface treatment agents 6 to 11.

[1020] [Table 2]

[1021]

[1022] Surface Treatment

[1023] Using the above-prepared surface treatment agents 1 to 11, the substrates (glass, aluminum, polycarbonate (PC)) were processed with a rod coater to a film thickness of 2.0 μm and treated at 150 °C for 30 minutes to obtain surface treatment samples of Examples 1 to 13.

[1024] Evaluation

[1025] For the obtained surface treatment samples, the static contact angles of water, hexadecane, and formamide, as well as the sliding angles of water and hexadecane, were measured. In addition, using the static contact angles of water and formamide, the polar component ratio was calculated according to the Kaelble-Uy formula. The results are shown in Table 3 below.

[1026] Method for Measuring Static Contact Angle

[1027] The static contact angle can be measured as follows: Using a fully automatic contact angle meter DropMaster 501 (manufactured by Kyowa Interface Science Co., Ltd.), 2 μL of liquid was dropped onto the horizontally placed surface treatment substrate using a microsyringe, and a still image 1 second after dropping was taken using a video microscope. For each sample, it was measured 5 times, and the average value was taken as the static contact angle of the sample. <s

[1028] Method for Measuring Sliding Angle

[1029] For the horizontally placed surface-treated samples, liquid was dropped using a micro syringe, and the samples were tilted to 90° at a speed of 2° per second to observe the droplets. The angle at which the droplet moved 5 mm was taken as the sliding angle. Regarding the amount of the droplet, 20 μL of water and 5 μL of hexadecane were used for measurement. For each sample, the measurement was performed 3 times, and the average value was taken as the sliding angle of the sample.

[1030] [Table 3]

[1031]

[1032] Comparative Examples 1 - 7

[1033] Preparation of surface treatment agent

[1034] The components (B) shown in Table 4 were dissolved in Novec 7200 so as to be 0.1 wt%, and surface treatment agents 12 - 18 were obtained.

[1035] [Table 4]

[1036]

[1037] Surface treatment

[1038] Using the above-prepared surface treatment agents 12 - 18, spin coating (2000 rpm, 10 seconds) was performed on the substrate (glass). After treatment at 150°C for 30 minutes, the surface was wiped with a wiping paper (KIMWIPES) containing ethanol.

[1039] Evaluation

[1040] For the obtained surface-treated samples, the static contact angles of water, hexadecane, and formamide, and the sliding angles of water and hexadecane were measured. In addition, using the static contact angles of water and formamide, the polar component ratio was calculated according to the Kaelble-Uy formula. It should be noted that as Comparative Example 8, the glass substrate not treated with the surface treatment agent was evaluated. The results are shown in Table 5 below.

[1041] [Table 5]

[1042]

[1043] Examples 14 - 15, Comparative Examples 9 - 11

[1044] As shown in Table 6 below, except for changing the film thickness and using a silicon wafer as the substrate, the surface treatment layer was formed using the surface treatment agent 2 in the same manner as in Example 3 above.

[1045] Evaluation

[1046] For the obtained surface-treated samples, the static contact angles of water and hexadecane, and the sliding angles of water and hexadecane were measured. In addition, using the static contact angles of water and hexadecane, the polar component ratio was calculated according to the Kaelble-Uy formula. The results are shown in Table 6 below. In addition, elemental analysis of the surface was performed using PHI 5000 VersaProbe II (ULVAC, Inc.). The detection angle was set at 45 °C, and the F / Si value was calculated from the measured values.

[1047] [Table 6]

[1048]

[1049] Examples 16 to 20

[1050] As shown in Table 7 below, except for changing the ratio of Component A and Component B, a surface treatment layer was formed on the glass substrate using the surface treatment agent 6 in the same manner as in Example 8 above.

[1051] Examples 21 to 26

[1052] As shown in Table 7 below, except for changing the film thickness, a surface treatment layer was formed on the glass substrate using the surface treatment agent 6 in the same manner as in Examples 8 and 16 to 20 above.

[1053] Evaluation

[1054] For the obtained surface-treated samples, the static contact angles of water, hexadecane, and formamide, and the sliding angles of water and hexadecane were measured. In addition, using the static contact angles of water and formamide, the polar component ratio was calculated according to the Kaelble-Uy formula. The results are shown in Table 7 below.

[1055] [Table 7]

[1056]

[1057] Industrial Applicability

[1058] The composition of the present invention can be suitably used for various purposes.

Claims

1. A composition, characterized in that, Containing: Component (A): A crosslinkable compound having a metal alkoxide group, and Component (B): A fluorinated liquid-repellent compound having a fluoroalkyl group or a fluoropolyether group, The crosslinkable compound is a compound represented by the following formula (A1) or formula (A2): A[Z a1 -M 1 (OR a1 ) n1 (R a2 ) n2－n1 m1 [Z a2 -R a3 m2 (A1)​​ In formula (A1): A is a 1- to 10-valent organic group, Z a1 are each independently a single bond or a divalent organic group M 1 is Si; R a1 are each independently a hydrogen atom or a C 1－6 alkyl group R a2 are each independently a hydrogen atom or a hydrocarbon group, n1 is independently 1 or more and (valence number of 1 1 −1) or less, n2 is independently (M 1 valence number - 1), Z a2 are each independently a single bond or a divalent organic group R a3 are each independently a reactive organic group, m1 is an integer from 1 to 10, m2 is an integer from 0 to 10, The sum of m1 and m2 is the valence of A, In formula (A2): M 2 is Si; R a4 are each independently a hydrogen atom, C 1－6 alkyl or R a6 -CO-; R a6 is a monovalent hydrocarbon group; R a5 are each independently C 1－3 alkyl or C 1－3 alkoxy; n3 is the valence of said M 2 ; n4 is 0 or more and equal to or less than the valence of said M 2 ​ The fluorinated liquid-repellent compound is a silane compound having a fluoropolyether group represented by the following formula (1) or formula (2): R F1 α -X A -R Si β (1) R Si γ -X A -R F2 -X A -R Si γ (2) In formula (1) or formula (2): R F1 each occurrence is independently Rf 1 - or Rf 1 -R F -O q -; R F2 is -Rf 2 - or -Rf 2 p -R F -O q -; Rf 1 Each occurrence is independently a C which may be substituted with one or more fluorine atoms 1－16 alkyl group; Rf 2 is a C alkylene group which may be substituted with one or more fluorine atoms 1－6 ; R F A fluorinated polyether group that is divalent and independent at each occurrence; p is 0 or 1; q is independently 0 or 1 at each occurrence; R Si Each occurrence is independently a monovalent group containing a Si atom bonded to a hydroxyl group, a hydrolyzable group or a monovalent organic group, or a monovalent group containing a reactive organic group; At least one R Si is a monovalent group containing a Si atom bonded to a hydroxyl group or a hydrolyzable group, or a monovalent group containing a reactive organic group; X A Each is independently a single bond or an organic group having a valence of 2 to 10; α is an integer from 1 to 9; β is an integer from 1 to 9; γ is independently an integer from 1 to 9, The composition satisfies the following formula: P b -P c >0 In the formula: P b is the value of the ratio of the polar component in the surface free energy of the layer formed from the fluorine-containing liquid compound P c is the value of the ratio of the polar component in the surface free energy of the layer formed from the composition, The value of the polar component ratio refers to the polar component γ of the surface free energy in the layer s p relative to the dispersion component γ s d and is the ratio to the sum of the polar component γ s p and is obtained by the following formula: Polar component ratio (%) = γ s p / (γ s d + γ s p ) × 100 The F / Si ratio of the surface of the layer formed from the composition is 3.0 or more.

2. The composition according to claim 1, wherein: It satisfies the following formula: P b -P c ≥ 3.0 3. The composition according to claim 1, wherein: P c is 20.0 or less.

4. The composition according to claim 1, wherein: n1 is 2 or more.

5. The composition according to claim 1, wherein: The said R a1 group is C 1－4 alkyl group.

6. The composition according to claim 1, wherein: A is an alkylene group or a group represented by the following formula: In the formula: X a Each is independently a single bond or a divalent organic group.

7. The composition according to claim 1, wherein: The reactive organic group is an isocyanate group, an epoxy group or a vinyl group.

8. The composition according to claim 1, wherein: R F independently at each occurrence, a group represented by the following formula: -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3R Fa 6) d -(OC2F4) e -(OCF2) f - In the formula, R Fa is independently, at each occurrence, 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 1 or more, and the order of presence of each repeating unit labeled with a, b, c, d, e, or f and enclosed in parentheses is arbitrary in the formula, where, when all R Fa is a hydrogen atom or a chlorine atom, at least one of a, b, c, e, and f is 1 or more.

9. The composition according to claim 1, wherein: R F a group independently represented by the following formula (f1), formula (f2), formula (f3), formula (f4), formula (f5) or formula (f6) at each occurrence: -(OC3F6) d -(OC2F4) e -(f1) In formula (f1), d is an integer from 1 to 200, e is 0 or 1, -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f -(f2) In formula (f2), 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 presence order of each repeating unit marked with a subscript c, d, e or f and enclosed in parentheses is arbitrary in the formula, -(R 6 -R 7 ) g -(f3) In formula (f3), R 6 is OCF2 or OC2F4; R 7 is a group selected from OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 or a combination of 2 or 3 groups selected from these groups; g is an integer from 2 to 100, -(R 6 -R 7 ) g -R r -(R 7′ -R 6′ ) g′ -(f4) In formula (f4), R 6 is OCF2 or OC2F4, R 7 is a group selected from OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 or a combination of 2 or 3 groups independently selected from these groups R 6′ is OCF2 or OC2F4, R 7′ is a group selected from OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 or a combination of 2 or 3 groups independently selected from these groups g is an integer from 2 to 100, g′ is an integer from 2 to 100, R r For In the formula, * represents the bonding position; -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f －(f5) In formula (f5), e is an integer from 1 to 200, a, b, c, d and f are independently integers from 0 to 200, and the presence order of each repeating unit marked with a, b, c, d, e or f and enclosed in parentheses is arbitrary in the formula, -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f －(f6) In formula (f6), f is an integer from 1 to 200, a, b, c, d and e are independently integers from 0 to 200, and the presence order of each repeating unit marked with a, b, c, d, e or f and enclosed in parentheses is arbitrary in the formula.

10. The composition according to claim 1, wherein: The reactive organic group is an isocyanate group, an epoxy group or a vinyl group.

11. The composition according to claim 1, wherein: R Si a group represented by the following formula (S1), formula (S2), formula (S3), formula (S4) or formula (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 formula (S1), formula (S2), formula (S3), formula (S4) or formula (S5): R 11 is independently a hydroxyl group or a hydrolyzable group at each occurrence; R 12 An organic group that is monovalent independently at each occurrence; n1 is independently an integer from 0 to 3 in each (SiR 11 n1 R 12 3－n1 ) cell; X 11 An organic group that is independently a single bond or divalent at each occurrence; R 13 Each occurrence is independently a hydrogen atom or a monovalent organic group; t is independently an integer of 2 or more at each occurrence; R 14 Each occurrence is independently a hydrogen atom, a halogen atom or -X 11 -SiR 11 n1 R 12 3－n1 ; R 15 Each occurrence is independently a single bond, an oxygen atom, an alkylene group having 1 to 6 carbon atoms or an alkoxy group having 1 to 6 carbon atoms; R a1 independently at each occurrence, is -Z 1 -SiR 21 p1 R 22 q1 R 23 r1 ; Z 1 independently at each occurrence, is an oxygen atom or a divalent organic group; R 21 independently at each occurrence, is -Z 1′ -SiR 21′ p1′ R 22′ q1′ R 23′ r1′ ; R 22 each occurrence is independently a hydroxyl group or a hydrolyzable group; R 23 An organic group that is monovalent independently at each occurrence; p1 is independently an integer from 0 to 3 at each occurrence; q1 is independently an integer from 0 to 3 at each occurrence; r1 is independently an integer from 0 to 3 at each occurrence; The sum of p1, q1, and r1 is 3 in the (SiR 21 p1 R 22 q1 R 23 r1 ) cell; Z 1′ Each occurrence is independently an oxygen atom or a divalent organic group; R 21′ is independently -Z at each occurrence 1" -SiR 22" q1" R 23" r1" ; R 22′ is independently a hydroxyl group or a hydrolyzable group at each occurrence; R 23′ An organic group that is monovalent independently at each occurrence; p1′ is independently an integer from 0 to 3 at each occurrence; q1′ is independently an integer from 0 to 3 at each occurrence; r1′ is independently an integer from 0 to 3 at each occurrence; The sum of p1′, q1′, and r1′ is 3 in the (SiR 21′ p1′ R 22′ q1′ R 23′ r1′ ) cell; Z 1" is, at each occurrence independently, an oxygen atom or a divalent organic group; R 22" Each occurrence is independently a hydroxyl group or a hydrolyzable group; R 23" a monovalent organic group that is independently monovalent at each occurrence; q1" is independently an integer from 0 to 3 at each occurrence; r1" is independently an integer from 0 to 3 at each occurrence; The sum of "q1" and "r1" is 3 in the (SiR 22" q1" R 23" r1" ) cell; R b1 is independently a hydroxyl group or a hydrolyzable group at each occurrence; R c1 a monovalent organic group that is independently 1-valent at each occurrence; k1 is independently an integer from 0 to 3 at each occurrence; l1 is independently an integer from 0 to 3 at each occurrence; m1 is independently an integer from 0 to 3 at each occurrence; The sum of k1, l1, and m1 is 3 in the (SiR a1 k1 R b1 l1 R c1 m1 ) cell; R d1 independently at each occurrence, is -Z 2 -CR 31 p2 R 32 q2 R 33 r2 ; Z 2 independently at each occurrence, is a single bond, an oxygen atom or a divalent organic group; R 31 independently at each occurrence, is -Z 2′ -CR 32′ q2′ R 33′ r2′ ; R 32 independently at each occurrence, is -Z 3 -SiR 34 n2 R 35 3－n2 ; R 33 Each occurrence is independently a hydrogen atom, a hydroxyl group or a monovalent organic group; p2 is independently an integer from 0 to 3 at each occurrence; q2 is independently an integer from 0 to 3 at each occurrence; r2 is independently an integer from 0 to 3 at each occurrence; The sum of p2, q2, and r2 is 3 in the (CR 31 p2 R 32 q2 R 33 r2 ) cell; Z 2′ Each occurrence is independently a single bond, an oxygen atom or a divalent organic group; R 32′ independently at each occurrence, is -Z 3 -SiR 34 n2 R 35 3－n2 ; R 33′ Each occurrence is independently a hydrogen atom, a hydroxyl group or a monovalent organic group; q2′ is independently an integer from 0 to 3 at each occurrence; r2′ is independently an integer from 0 to 3 at each occurrence; The sum of q2' and r2' is 3 in the (CR 32′ q2′ R 33′ r2′ ) cell; Z 3 Each occurrence is independently a single bond, an oxygen atom or a divalent organic group; R 34 each occurrence is independently a hydroxyl group or a hydrolyzable group; R 35 a monovalent organic group which is independently monovalent at each occurrence; n2 is independently an integer from 0 to 3 at each occurrence; R e1 independently at each occurrence, is -Z 3 -SiR 34 n2 R 35 3－n2 ; R f1 Each occurrence is independently a hydrogen atom, a hydroxyl group, or a monovalent organic group; k2 is independently an integer from 0 to 3 at each occurrence; l2 is independently an integer from 0 to 3 at each occurrence; m2 is independently an integer from 0 to 3 at each occurrence; The sum of k2, l2, and m2 is 3 in the (CR d1 k2 R e1 l2 R f1 m2 ) cell; R g1 and R h1 are each independently, at each occurrence, -Z 4 -SiR 11 n1 R 12 3－n1 , -Z 4 -SiR a1 k1 R b1 l1 R c1 m1 , -Z 4 -CR d1 k2 R e1 l2 R f1 m2 ; Z 4 Each occurrence is independently a single bond, an oxygen atom, or a divalent organic group; Wherein, in formula (S1), formula (S2), formula (S3), formula (S4) and formula (S5), there is at least one Si atom bonded to a hydroxyl group or a hydrolyzable group.

12. The composition according to claim 1, characterized in that: X A a single bond or a divalent organic group represented by the following formula: -(R 51 ) p5 -(X 51 ) q5 - In the formula: R 51 is a single bond, -(CH2) s5 -, or o-phenylene, m-phenylene or p-phenylene, s5 is an integer from 1 to 20, X 51 be -(X 52 ) l5 -, X 52 Each occurrence is independently selected from -O-, -S-, o-phenylene, m-phenylene or p-phenylene, -C(O)O-, -Si(R 53 )2-, -(Si(R 53 )2O) m5 -Si(R 53 )2-, -CONR 54 -, -O-CONR 54 -, -NR 54 - and -(CH2) n5 - groups, R 53 each occurrence is independently phenyl, C 1－6 alkyl or C 1－6 alkoxy, R 54 is independently at each occurrence 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, Wherein, at least one of p5 and q5 is 1, and the order of existence of each repeating unit marked with p5 or q5 and enclosed in parentheses is arbitrary.

13. The composition according to claim 1, characterized in that: X A is a group represented by the following formula: wherein, X a is a single bond or a divalent organic group.

14. The composition according to claim 1, characterized in that: The fluorine-containing liquid repellent compound is a fluorinated polyether group-containing silane compound represented by formula (1).

15. The composition according to claim 1, characterized in that: Relative to the total of the crosslinkable compound and the fluorine-containing liquid repellent compound, the content of the fluorine-containing liquid repellent compound is 0.1 to 90.0% by mass.

16. The composition according to claim 1, characterized in that: The F / Si ratio of the surface of the layer formed from the composition is 5.0 or more and 20.0 or less.

17. The composition according to claim 1, characterized in that: The water sliding angle of the layer formed from the composition is 25° or less.

18. The composition according to claim 1, characterized in that: It further contains other components selected from organic solvents, water and catalysts.

19. The composition according to claim 1, characterized in that: It is a surface treatment agent.

20. An article, characterized in that, Comprising: A substrate, and a layer formed from the composition according to claim 19 on the substrate.

21. An article, characterized in that, Comprising: A substrate, and a layer formed from the composition according to claim 1.

22. An article, characterized in that, Comprising: A substrate and a layer formed from the composition according to claim 1, wherein the polar component ratio in the surface free energy of the layer is 20.0% or less.

23. The article according to claim 21 or 22, characterized in that: The F / Si ratio of the surface of the layer is 5.0 or more.

24. The article according to claim 21 or 22, characterized in that: The sliding angle of water on the layer is 25° or less.

25. The article according to claim 21 or 22, characterized in that: The thickness of the layer is 0.01 μm or more.

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