JP2023122564A - Surface treatment agent - Google Patents

Abstract

To provide an article having a surface treatment layer with improved friction durability.SOLUTION: A surface treatment agent includes component (A): a fluoropolyether group-containing silane compound, and component (B): a polyoxyalkylene group-containing compound.SELECTED DRAWING: None

Description

The present disclosure relates to surface treatment agents.

Certain fluoropolyether group-containing silane compounds are known to provide excellent water repellency, oil repellency, antifouling properties, etc. when used for surface treatment of substrates. A layer obtained from a surface treatment agent containing a fluoropolyether group-containing silane compound (hereinafter also referred to as a "surface treatment layer") is a so-called functional thin film, for example, glass, plastic, fiber, sanitary goods, building materials, etc. (Patent Document 1).

JP 2014-218639 A

Although the fluoropolyether group-containing silane compound described in Patent Document 1 can provide a surface treatment layer having excellent functions, there is a demand for a surface treatment layer having higher friction durability.

An object of the present disclosure is to provide an article having a surface treatment layer with higher friction durability.

［式中：
Ｒ^Ｆ１は、それぞれ独立して、Ｒｆ^１－Ｒ^Ｆ－Ｏ_ｑ－であり；
Ｒ^Ｆ２は、－Ｒｆ^２ _ｐ－Ｒ^Ｆ－Ｏ_ｑ－であり；
Ｒ^Ｆは、それぞれ独立して、２価のフルオロポリエーテル基であり；
Ｒｆ^１は、それぞれ独立して、１個又はそれ以上のフッ素原子により置換されていてもよいＣ_１－１６アルキル基であり；
Ｒｆ^２は、１個又はそれ以上のフッ素原子により置換されていてもよいＣ_１－６アルキレン基であり；
ｐは、０又は１であり；
ｑは、それぞれ独立して、０又は１であり；
Ｒ^Ｓｉは、それぞれ独立して、水酸基、加水分解性基、水素原子又は１価の有機基が結合したＳｉ原子を含む１価の基であり；
少なくとも１つのＲ^Ｓｉは、水酸基又は加水分解性基が結合したＳｉ原子を含む１価の基であり；
Ｘ^Ａは、それぞれ独立して、単結合又は２～１０価の有機基であり；
α１は、１～９の整数であり；
β１は、１～９の整数であり；
γ１は、それぞれ独立して、１～９の整数である。］
で表される化合物である、上記［１］に記載の表面処理剤。
［３］ Ｒｆ^１は、それぞれ独立して、Ｃ_１－１６パーフルオロアルキル基であり、
Ｒｆ^２は、それぞれ独立して、Ｃ_１－６パーフルオロアルキレン基である、
上記［２］に記載の表面処理剤。
［４］ Ｒ^Ｆは、それぞれ独立して、式：
－（ＯＣ_６Ｆ_１２）_ａ－（ＯＣ_５Ｆ_１０）_ｂ－（ＯＣ_４Ｆ_８）_ｃ－（ＯＣ_３Ｒ^Ｆａ _６）_ｄ－（ＯＣ_２Ｆ_４）_ｅ－（ＯＣＦ_２）_ｆ－
［式中:
Ｒ^Ｆａは、それぞれ独立して、水素原子、フッ素原子又は塩素原子であり、
ａ、ｂ、ｃ、ｄ、ｅ及びｆは、それぞれ独立して、０～２００の整数であって、ａ、ｂ、ｃ、ｄ、ｅ及びｆの和は１以上であり、ａ、ｂ、ｃ、ｄ、ｅ又はｆを付して括弧でくくられた各繰り返し単位の存在順序は式中において任意であり、ただし、すべてのＲ^Ｆａが水素原子又は塩素原子である場合、ａ、ｂ、ｃ、ｅ及びｆの少なくとも１つは、１以上である。］
で表される基である、上記［２］又は［３］に記載の表面処理剤。
［５］ Ｒ^Ｆａは、フッ素原子である、上記［４］に記載の表面処理剤。
［６］ Ｒ^Ｆは、それぞれ独立して、下記式（ｆ１）、（ｆ２）、（ｆ３）、（ｆ４）、（ｆ５）、又は（ｆ６）：
－（ＯＣ_３Ｆ_６）_ｄ－（ＯＣ_２Ｆ_４）_ｅ－ （ｆ１）
［式中、ｄは１～２００の整数であり、ｅは０又は１である。］、
－（ＯＣ_４Ｆ_８）_ｃ－（ＯＣ_３Ｆ_６）_ｄ－（ＯＣ_２Ｆ_４）_ｅ－（ＯＣＦ_２）_ｆ－ （ｆ２）
［式中、ｃ及びｄは、それぞれ独立して、０～３０の整数であり；
ｅ及びｆは、それぞれ独立して、１～２００の整数であり；
ｃ、ｄ、ｅ及びｆの和は、１０～２００の整数であり；
添字ｃ、ｄ、ｅ又はｆを付して括弧でくくられた各繰り返し単位の存在順序は、式中において任意である。］、
－（Ｒ^６－Ｒ^７）_ｇ－ （ｆ３）
［式中、Ｒ^６は、ＯＣＦ_２又はＯＣ_２Ｆ_４であり；
Ｒ^７は、ＯＣ_２Ｆ_４、ＯＣ_３Ｆ_６、ＯＣ_４Ｆ_８、ＯＣ_５Ｆ_１０及びＯＣ_６Ｆ_１２から選択される基であるか、あるいは、これらの基から選択される２又は３つの基の組み合わせであり；
ｇは、２～１００の整数である。］、
－（Ｒ^６－Ｒ^７）_ｇ－Ｒ^ｒ－（Ｒ^７’－Ｒ^６’）_ｇ’－ （ｆ４）
［式中、Ｒ^６は、ＯＣＦ_２又はＯＣ_２Ｆ_４であり、
Ｒ^７は、ＯＣ_２Ｆ_４、ＯＣ_３Ｆ_６、ＯＣ_４Ｆ_８、ＯＣ_５Ｆ_１０及びＯＣ_６Ｆ_１２から選択される基であるか、あるいは、これらの基から独立して選択される２又は３つの基の組み合わせであり、
Ｒ^６’は、ＯＣＦ_２又はＯＣ_２Ｆ_４であり、
Ｒ^７’は、ＯＣ_２Ｆ_４、ＯＣ_３Ｆ_６、ＯＣ_４Ｆ_８、ＯＣ_５Ｆ_１０及びＯＣ_６Ｆ_１２から選択される基であるか、あるいは、これらの基から独立して選択される２又は３つの基の組み合わせであり、
ｇは、２～１００の整数であり、
ｇ’は、２～１００の整数であり、
Ｒ^ｒは、

（式中、＊は、結合位置を示す。）
である。］；
－（ＯＣ_６Ｆ_１２）_ａ－（ＯＣ_５Ｆ_１０）_ｂ－（ＯＣ_４Ｆ_８）_ｃ－（ＯＣ_３Ｆ_６）_ｄ－（ＯＣ_２Ｆ_４）_ｅ－（ＯＣＦ_２）_ｆ－ （ｆ５）
［式中、ｅは、１以上２００以下の整数であり、ａ、ｂ、ｃ、ｄ及びｆは、それぞれ独立して０以上２００以下の整数であり、また、ａ、ｂ、ｃ、ｄ、ｅ又はｆを付して括弧でくくられた各繰り返し単位の存在順序は式中において任意である。］
－（ＯＣ_６Ｆ_１２）_ａ－（ＯＣ_５Ｆ_１０）_ｂ－（ＯＣ_４Ｆ_８）_ｃ－（ＯＣ_３Ｆ_６）_ｄ－（ＯＣ_２Ｆ_４）_ｅ－（ＯＣＦ_２）_ｆ－ （ｆ６）
［式中、ｆは、１以上２００以下の整数であり、ａ、ｂ、ｃ、ｄ及びｅは、それぞれ独立して０以上２００以下の整数であり、また、ａ、ｂ、ｃ、ｄ、ｅ又はｆを付して括弧でくくられた各繰り返し単位の存在順序は式中において任意である。］
で表される基である、上記［１］～［５］のいずれか１項に記載の表面処理剤。
［７］ Ｒ^Ｓｉは、下記式（Ｓ１）、（Ｓ２）、（Ｓ３）、（Ｓ４）又は（Ｓ５）：

［式中：
Ｒ^１１は、それぞれ独立して、水酸基又は加水分解性基であり；
Ｒ^１２は、それぞれ独立して、水素原子又は１価の有機基であり；
ｎ１は、（ＳｉＲ^１１ _ｎ１Ｒ^１２ _３－ｎ１）単位毎にそれぞれ独立して、０～３の整数であり；
Ｘ^１１は、それぞれ独立して、単結合又は２価の有機基であり；
Ｒ^１３は、それぞれ独立して、水素原子又は１価の有機基であり；
ｔは、それぞれ独立して、２以上の整数であり；
Ｒ^１４は、それぞれ独立して、水素原子、ハロゲン原子又は－Ｘ^１１－ＳｉＲ^１１ _ｎ１Ｒ^１２ _３－ｎ１であり；
Ｒ^１５は、各出現においてそれぞれ独立して、単結合、酸素原子、炭素数１～６のアルキレン基または炭素数１～６のアルキレンオキシ基であり；
Ｒ^ａ１は、それぞれ独立して、－Ｚ^１－ＳｉＲ^２１ _ｐ１Ｒ^２２ _ｑ１Ｒ^２３ _ｒ１であり；
Ｚ^１は、それぞれ独立して、酸素原子又は２価の有機基であり；
Ｒ^２１は、それぞれ独立して、－Ｚ^１’－ＳｉＲ^２１’ _ｐ１’Ｒ^２２’ _ｑ１’Ｒ^２３’ _ｒ１’であり；
Ｒ^２２は、それぞれ独立して、水酸基又は加水分解性基であり；
Ｒ^２３は、それぞれ独立して、水素原子又は１価の有機基であり；
ｐ１は、それぞれ独立して、０～３の整数であり；
ｑ１は、それぞれ独立して、０～３の整数であり；
ｒ１は、それぞれ独立して、０～３の整数であり；
ｐ１、ｑ１及びｒ１の合計は、（ＳｉＲ^２１ _ｐ１Ｒ^２２ _ｑ１Ｒ^２３ _ｒ１）単位において、３であり；
Ｚ^１’は、それぞれ独立して、酸素原子又は２価の有機基であり；
Ｒ^２１’は、それぞれ独立して、－Ｚ^１”－ＳｉＲ^２２” _ｑ１”Ｒ^２３” _ｒ１”であり；
Ｒ^２２’は、それぞれ独立して、水酸基又は加水分解性基であり；
Ｒ^２３’は、それぞれ独立して、水素原子又は１価の有機基であり；
ｐ１’は、それぞれ独立して、０～３の整数であり；
ｑ１’は、それぞれ独立して、０～３の整数であり；
ｒ１’は、それぞれ独立して、０～３の整数であり；
ｐ１’、ｑ１’及びｒ１’の合計は、（ＳｉＲ^２１’ _ｐ１’Ｒ^２２’ _ｑ１’Ｒ^２３’ _ｒ１’）単位において、３であり；
Ｚ^１”は、それぞれ独立して、酸素原子又は２価の有機基であり；
Ｒ^２２”は、それぞれ独立して、水酸基又は加水分解性基であり；
Ｒ^２３”は、それぞれ独立して、水素原子又は１価の有機基であり；
ｑ１”は、それぞれ独立して、０～３の整数であり；
ｒ１”は、それぞれ独立して、０～３の整数であり；
ｑ１”及びｒ１”の合計は、（ＳｉＲ^２２” _ｑ１”Ｒ^２３” _ｒ１”）単位において、３であり；
Ｒ^ｂ１は、それぞれ独立して、水酸基又は加水分解性基であり；
Ｒ^ｃ１は、それぞれ独立して、水素原子又は１価の有機基であり；
ｋ１は、それぞれ独立して、０～３の整数であり；
ｌ１は、それぞれ独立して、０～３の整数であり；
ｍ１は、それぞれ独立して、０～３の整数であり；
ｋ１、ｌ１及びｍ１の合計は、（ＳｉＲ^ａ１ _ｋ１Ｒ^ｂ１ _ｌ１Ｒ^ｃ１ _ｍ１）単位において、３であり；
Ｒ^ｄ１は、それぞれ独立して、－Ｚ^２－ＣＲ^３１ _ｐ２Ｒ^３２ _ｑ２Ｒ^３３ _ｒ２であり；
Ｚ^２は、それぞれ独立して、単結合、酸素原子又は２価の有機基であり；
Ｒ^３１は、それぞれ独立して、－Ｚ^２’－ＣＲ^３２’ _ｑ２’Ｒ^３３’ _ｒ２’であり；
Ｒ^３２は、それぞれ独立して、－Ｚ^３－ＳｉＲ^３４ _ｎ２Ｒ^３５ _３－ｎ２であり；
Ｒ^３３は、それぞれ独立して、水素原子、水酸基又は１価の有機基であり；
ｐ２は、それぞれ独立して、０～３の整数であり；
ｑ２は、それぞれ独立して、０～３の整数であり；
ｒ２は、それぞれ独立して、０～３の整数であり；
ｐ２、ｑ２及びｒ２の合計は、（ＣＲ^３１ _ｐ２Ｒ^３２ _ｑ２Ｒ^３３ _ｒ２）単位において、３であり；
Ｚ^２’は、それぞれ独立して、単結合、酸素原子又は２価の有機基であり；
Ｒ^３２’は、それぞれ独立して、－Ｚ^３－ＳｉＲ^３４ _ｎ２Ｒ^３５ _３－ｎ２であり；
Ｒ^３３’は、それぞれ独立して、水素原子、水酸基又は１価の有機基であり；
ｑ２’は、それぞれ独立して、０～３の整数であり；
ｒ２’は、それぞれ独立して、０～３の整数であり；
ｑ２’及びｒ２’の合計は、（ＣＲ^３２’ _ｑ２’Ｒ^３３’ _ｒ２’）単位において、３であり；
Ｚ^３は、それぞれ独立して、単結合、酸素原子又は２価の有機基であり；
Ｒ^３４は、それぞれ独立して、水酸基又は加水分解性基であり；
Ｒ^３５は、それぞれ独立して、水素原子又は１価の有機基であり；
ｎ２は、それぞれ独立して、０～３の整数であり；
Ｒ^ｅ１は、それぞれ独立して、－Ｚ^３－ＳｉＲ^３４ _ｎ２Ｒ^３５ _３－ｎ２であり；
Ｒ^ｆ１は、それぞれ独立して、水素原子、水酸基又は１価の有機基であり；
ｋ２は、それぞれ独立して、０～３の整数であり；
ｌ２は、それぞれ独立して、０～３の整数であり；
ｍ２は、それぞれ独立して、０～３の整数であり；
ｋ２、ｌ２及びｍ２の合計は、（ＣＲ^ｄ１ _ｋ２Ｒ^ｅ１ _ｌ２Ｒ^ｆ１ _ｍ２）単位において、３であり；
Ｒ^ｇ１及びＲ^ｈ１は、それぞれ独立して、－Ｚ^４－ＳｉＲ^１１ _ｎ１Ｒ^１２ _３－ｎ１、－Ｚ^４－ＳｉＲ^ａ１ _ｋ１Ｒ^ｂ１ _ｌ１Ｒ^ｃ１ _ｍ１、又は－Ｚ^４－ＣＲ^ｄ１ _ｋ２Ｒ^ｅ１ _ｌ２Ｒ^ｆ１ _ｍ２であり；
Ｚ^４は、それぞれ独立して、単結合、酸素原子又は２価の有機基であり；
ただし、式（Ｓ１）、（Ｓ２）、（Ｓ３）、（Ｓ４）及び（Ｓ５）中、水酸基又は加水分解性基が結合したＳｉ原子が少なくとも１つ存在する。］
で表される基である、上記［２］～［６］のいずれか１項に記載の表面処理剤。
［８］ α１、β１、及びγ１は、１である、上記［２］～［７］のいずれか１項に記載の表面処理剤。
［９］ Ｘ^Ａは、単結合又は下記式：
－（Ｒ^５１）_ｐ５－（Ｘ^５１）_ｑ５－
［式中：
Ｒ^５１は、単結合、－（ＣＨ_２）_ｓ５－又はｏ－、ｍ－もしくはｐ－フェニレン基であり、
ｓ５は、１～２０の整数であり、
Ｘ^５１は、－（Ｘ^５２）_ｌ５－であり、
Ｘ^５２は、それぞれ独立して、－Ｏ－、－Ｓ－、ｏ－、ｍ－もしくはｐ－フェニレン基、－Ｃ（Ｏ）Ｏ－、－Ｓｉ（Ｒ^５３）_２－、－（Ｓｉ（Ｒ^５３）_２Ｏ）_ｍ５－Ｓｉ（Ｒ^５３）_２－、－ＣＯＮＲ^５４－、－Ｏ－ＣＯＮＲ^５４－、－ＮＲ^５４－及び－（ＣＨ_２）_ｎ５－からなる群から選択される基であり、
Ｒ^５３は、それぞれ独立して、フェニル基、Ｃ_１－６アルキル基又はＣ_１－６アルコキシ基であり、
Ｒ^５４は、それぞれ独立して、水素原子、フェニル基又はＣ_１－６アルキル基であり、
ｍ５は、それぞれ独立して、１～１００の整数であり、
ｎ５は、それぞれ独立して、１～２０の整数であり、
ｌ５は、１～１０の整数であり、
ｐ５は、０又は１であり、
ｑ５は、０又は１であり、
ここに、ｐ５及びｑ５の少なくとも一方は１であり、ｐ５又はｑ５を付して括弧でくくられた各繰り返し単位の存在順序は任意であり、
右側がＲ^Ｓｉに結合する。］
で表される２価の有機基である、上記［２］～［８］のいずれか１項に記載の表面処理剤。
［１０］ Ｘ^Ａは、下記式：

［式中、Ｘ^ａは、それぞれ独立して、単結合または２価の有機基である。］
で表される基である、上記［２］～［８］のいずれか１項に記載の表面処理剤。
［１１］ 前記ポリオキシアルキレン基含有化合物は、下記式（Ｂ）：

［式中：
Ｒ^Ｅは、それぞれ独立して、１～１０価のポリオキシアルキレン基であり；
Ｘ^Ｂは、それぞれ独立して、単結合又は２～１０価の有機基であり；
Ｒ^Ｔは、それぞれ独立して、水素原子、Ｃ_１－６アルキル基、－ＯＲ^６５、－ＳＲ^６５、－ＮＲ^６５ _２、－ＣＯＯＲ^６５、－ＣＯＲ^６５、－ＯＣＯＲ^６５、－ＣＯＮＲ^６５、－ＮＲ^６５ＣＯＲ^６５、Ｃ_３－１６シクロアルキル基、Ｃ_５－１６アリール基、又は、水酸基、加水分解性基、水素原子もしくは１価の有機基が結合したＳｉ原子を含む１価の基であり；
Ｒ^６５は、それぞれ独立して、水素原子又はＣ_１－６アルキル基であり；
δ１は、１～１０の整数であり；
δ２は、それぞれ独立して、１～９の整数である。］
で表される化合物である、上記［１］～［１０］のいずれか１項に記載の表面処理剤。
［１２］ Ｒ^Ｅは、
Ｒ^６１－Ｒ^Ｅ３－Ｏ_ｑ２－、
－Ｒ^６２ _ｐ２－Ｒ^Ｅ３－Ｏ_ｑ２－
Ｘ^Ｅ（Ｒ^６２ _ｐ２－Ｒ^Ｅ３－Ｏ_ｑ２）_ｒ２
［式中：
Ｒ^Ｅ３は、それぞれ独立して、２価のポリオキシアルキレン基であり；
Ｒ^６１は、水素原子、又はＣ_１－６アルキル基であり；
Ｒ^６２は、Ｃ_１－６アルキレン基であり；
Ｘ^Ｅは、３～１０価の基であり；
ｐ２は、０又は１であり；
ｑ２は、それぞれ独立して、０又は１であり；
ｒ２は、３～１０の整数である。］
で表される基である、上記［１１］に記載の表面処理剤。
［１３］ 前記ポリオキシアルキレン基含有化合物は、下記式（Ｂ１）又は（Ｂ２）：

［式中：
Ｒ^Ｅ１は、それぞれ独立して、Ｒ^６１－Ｒ^Ｅ３－Ｏ_ｑ２－であり；
Ｒ^Ｅ２は、－Ｒ^６２ _ｐ２－Ｒ^Ｅ３－Ｏ_ｑ２－であり；
Ｒ^Ｅ３は、それぞれ独立して、２価のポリオキシアルキレン基であり；
Ｒ^６１は、水素原子、又はＣ_１－６アルキル基であり；
Ｒ^６２は、Ｃ_１－６アルキレン基であり；
ｐ２は、０又は１であり；
ｑ２は、それぞれ独立して、０又は１であり；
Ｒ^Ｔは、それぞれ独立して、水素原子、Ｃ_１－６アルキル基、－ＯＲ^６５、－ＳＲ^６５、－ＮＲ^６５ _２、－ＣＯＯＲ^６５、－ＣＯＲ^６５、－ＯＣＯＲ^６５、－ＣＯＮＲ^６５、－ＮＲ^６５ＣＯＲ^６５、Ｃ_３－１６シクロアルキル基、Ｃ_５－１６アリール基、又は、水酸基、加水分解性基、水素原子もしくは１価の有機基が結合したＳｉ原子を含む１価の基であり；
Ｒ^６５は、それぞれ独立して、水素原子又はＣ_１－６アルキル基であり；
Ｘ^Ｂは、それぞれ独立して、単結合又は２～１０価の有機基であり；
α２は、１～９の整数であり；
β２は、１～９の整数であり；
γ２は、それぞれ独立して、１～９の整数である。］
で表される化合物である、上記［１１］又は［１２］に記載の表面処理剤。
［１４］ Ｒ^Ｅ３は、それぞれ独立して、式：
－（ＯＲ^６３）_ａ１－
［式中、
Ｒ^６３は、Ｃ_１－６アルキレン基であり、
ａ１は、２～３０の整数である。］
で表される基である、上記［１３］に記載の表面処理剤。
［１５］ Ｒ^Ｔは、それぞれ独立して、水素原子、Ｃ_１－６アルキル基、Ｃ_３－１６シクロアルキル基、又はＣ_５－１６アリール基である、上記［１１］～［１４］のいずれか１項に記載の表面処理剤。
［１６］ Ｒ^Ｔは、それぞれ独立して、－ＯＲ^６５、－ＳＲ^６５、－ＮＲ^６５ _２、－ＣＯＯＲ^６５、－ＣＯＲ^６５、－ＯＣＯＲ^６５、－ＣＯＮＲ^６５、－ＮＲ^６５ＣＯＲ^６５、又は水酸基、加水分解性基、水素原子もしくは１価の有機基が結合したＳｉ原子を含む１価の基である、上記［１１］～［１４］のいずれか１項に記載の表面処理剤。
［１７］ Ｒ^Ｔは、それぞれ独立して、水素原子、又は水酸基である、上記［１１］～［１４］のいずれか１項に記載の表面処理剤。
［１８］ Ｒ^Ｔは、それぞれ独立して、水酸基、加水分解性基、水素原子もしくは１価の有機基が結合したＳｉ原子を含む１価の基である、上記［１１］～［１４］のいずれか１項に記載の表面処理剤。
［１９］ α２、β２、及びγ２は、１である、上記［１３］～［１８］のいずれか１項に記載の表面処理剤。
［２０］ Ｘ^Ｂは、それぞれ独立して、単結合、又は下記式：
－（Ｒ^５１）_ｐ５－（Ｘ^５１）_ｑ５－
［式中：
Ｒ^５１は、単結合、－（ＣＨ_２）_ｓ５－又はｏ－、ｍ－もしくはｐ－フェニレン基であり、
ｓ５は、１～２０の整数であり、
Ｘ^５１は、－（Ｘ^５２）_ｌ５－であり、
Ｘ^５２は、それぞれ独立して、－Ｏ－、－Ｓ－、ｏ－、ｍ－もしくはｐ－フェニレン基、－Ｃ（Ｏ）Ｏ－、－Ｓｉ（Ｒ^５３）_２－、－（Ｓｉ（Ｒ^５３）_２Ｏ）_ｍ５－Ｓｉ（Ｒ^５３）_２－、－ＣＯＮＲ^５４－、－Ｏ－ＣＯＮＲ^５４－、－ＮＲ^５４－及び－（ＣＨ_２）_ｎ５－からなる群から選択される基であり、
Ｒ^５３は、それぞれ独立して、フェニル基、Ｃ_１－６アルキル基又はＣ_１－６アルコキシ基であり、
Ｒ^５４は、それぞれ独立して、水素原子、フェニル基又はＣ_１－６アルキル基であり、
ｍ５は、それぞれ独立して、１～１００の整数であり、
ｎ５は、それぞれ独立して、１～２０の整数であり、
ｌ５は、１～１０の整数であり、
ｐ５は、０又は１であり、
ｑ５は、０又は１であり、
ここに、ｐ５及びｑ５の少なくとも一方は１であり、ｐ５又はｑ５を付して括弧でくくられた各繰り返し単位の存在順序は任意であり、
右側がＲ^Ｔに結合する。］
で表される２価の有機基である、上記［１１］～［１９］のいずれか１項に記載の表面処理剤。
［２１］ 成分（Ａ）：フルオロポリエーテル基含有シラン化合物を含む第一液、及び
成分（Ｂ）：ポリオキシアルキレン基含有化合物を含む第二液
を含む二液系である、上記［１］～［２０］のいずれか１項に記載の表面処理剤。
［２２］ 前記成分（Ｂ）の含有量は、成分（Ａ）１００質量部に対して、０．１～３０質量部である、上記［１］～［２１］のいずれか１項に記載の表面処理剤。
［２３］ 含フッ素オイル、シリコーンオイル、アルコール、及び触媒から選択される１種又はそれ以上の他の成分をさらに含有する、上記［１］～［２２］のいずれか１項に記載の表面処理剤。
［２４］ さらに溶媒を含む、上記［１］～［２３］のいずれか１項に記載の表面処理剤。
［２５］ 防汚性コーティング剤又は防水性コーティング剤として使用される、上記［１］～［２４］のいずれか１項に記載の表面処理剤。
［２６］ 上記［１］～［２５］のいずれか１項に記載の表面処理剤を含有するペレット。
［２７］ 基材と、該基材上に、上記［１］～［２５］のいずれか１項に記載の表面処理剤より形成された層とを含む物品。
［２８］ 前記基材は、ガラス基材である、上記［２７］に記載の物品。
［２９］ 光学部材である、上記［２８］に記載の物品。 The present disclosure includes the following aspects.
[1] A surface treatment agent comprising component (A): a fluoropolyether group-containing silane compound, and component (B): a polyoxyalkylene group-containing compound.
[2] The fluoropolyether group-containing silane compound has the following formula (A1) or (A2):

[In the formula:
each R ^F1 is independently Rf ¹ —R ^F —O _q —;
R ^F2 is -Rf ² _p -R ^F -O _q -;
each R ^F is independently a divalent fluoropolyether group;
each Rf ¹ is independently a C _1-16 alkyl group optionally substituted by one or more fluorine atoms;
Rf ² is a C _1-6 alkylene group optionally substituted by one or more fluorine atoms;
p is 0 or 1;
each q is independently 0 or 1;
R ^Si is each independently a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is bonded;
at least one R ^Si is a monovalent group comprising a Si atom to which a hydroxyl group or a hydrolyzable group is attached;
each X ^A is independently a single bond or a divalent to decavalent organic group;
α1 is an integer from 1 to 9;
β1 is an integer from 1 to 9;
γ1 is each independently an integer of 1-9. ]
The surface treatment agent according to [1] above, which is a compound represented by
[3] each Rf ¹ is independently a C _1-16 perfluoroalkyl group;
each Rf ² is independently a C _1-6 perfluoroalkylene group;
The surface treatment agent according to [2] above.
[4] R ^F is each independently represented by the formula:
- (OC ₆ F ₁₂ ) _a - (OC ₅ F ₁₀ ) _b - (OC ₄ F ₈ ) _c - (OC ₃ R ^Fa ₆ ) _d - (OC ₂ F ₄ ) _e - (OCF ₂ ) _f -
[In the formula:
each R ^Fa is independently a hydrogen atom, a fluorine atom or a chlorine atom,
a, b, c, d, e and f are each independently an integer of 0 to 200, the sum of a, b, c, d, e and f is 1 or more; The order of existence of each repeating unit bracketed with c, d, e or f is arbitrary in the formula, provided that when all ^RFa are hydrogen atoms or chlorine atoms, a, b, At least one of c, e and f is 1 or more. ]
The surface treatment agent according to the above [2] or [3], which is a group represented by
[5] The surface treating agent according to [4] above, wherein ^RFa is a fluorine atom.
[6] R ^F each independently represents the following formula (f1), (f2), (f3), (f4), (f5), or (f6):
-(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e - (f1)
[Wherein, d is an integer of 1 to 200, and e is 0 or 1. ],
-(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f2)
[Wherein, c and d are each independently an integer of 0 to 30;
e and f are each independently an integer from 1 to 200;
the sum of c, d, e and f is an integer from 10 to 200;
The order of existence of each repeating unit bracketed with subscript c, d, e or f is arbitrary in the formula. ],
-(R ⁶ -R ⁷ ) _g - (f3)
[wherein R ⁶ is OCF ₂ or OC ₂ F ₄ ;
R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or two or three groups selected from these groups. is a combination of groups;
g is an integer from 2 to 100; ],
—(R ⁶ —R ⁷ ) _g —R ^r —(R ^7′ —R ^6′ ) _g′ − (f4)
[wherein R ⁶ is OCF ₂ or OC ₂ F ₄ ;
R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ or 2 independently selected from these groups or a combination of three groups,
R ^6' is OCF ₂ or OC ₂ F ₄ ;
R ^7′ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ or independently selected from these groups a combination of two or three groups,
g is an integer from 2 to 100,
g' is an integer from 2 to 100,
^Rr is

(In the formula, * indicates the binding position.)
is. ];
- (OC ₆ F ₁₂ ) _a - (OC ₅ F ₁₀ ) _b - (OC ₄ F ₈ ) _c - (OC ₃ F ₆ ) _d - (OC ₂ F ₄ ) _e - (OCF ₂ ) _f - (f5)
[Wherein, 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 a, b, c, d, The order of existence of each repeating unit bracketed with e or f is arbitrary in the formula. ]
- (OC ₆ F ₁₂ ) _a - (OC ₅ F ₁₀ ) _b - (OC ₄ F ₈ ) _c - (OC ₃ F ₆ ) _d - (OC ₂ F ₄ ) _e - (OCF ₂ ) _f - (f6)
[Wherein, 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 a, b, c, d, The order of existence of each repeating unit bracketed with e or f is arbitrary in the formula. ]
The surface treatment agent according to any one of [1] to [5] above, which is a group represented by
[7] R ^Si is represented by the following formula (S1), (S2), (S3), (S4) or (S5):

[In the formula:
each R ¹¹ is independently a hydroxyl group or a hydrolyzable group;
each R ¹² is independently a hydrogen atom or a monovalent organic group;
n1 is an integer of 0 to 3 independently for each (SiR ¹¹ _n1 R ¹² _3-n1 ) unit;
each X ¹¹ is independently a single bond or a divalent organic group;
each R ¹³ is independently a hydrogen atom or a monovalent organic group;
t is each independently an integer of 2 or greater;
each R ¹⁴ is independently a hydrogen atom, a halogen atom or —X ¹¹ —SiR ¹¹ _n1 R ¹² _3-n1 ;
each occurrence of R ¹⁵ is independently a single bond, an oxygen atom, an alkylene group having 1 to 6 carbon atoms, or an alkyleneoxy group having 1 to 6 carbon atoms;
each R ^a1 is independently —Z ¹ —SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ;
each Z ¹ is independently an oxygen atom or a divalent organic group;
each R ²¹ is independently -Z ^1' -SiR ^21' _p1' R ^22' _q1' R ^23' _r1' ;
each R ²² is independently a hydroxyl group or a hydrolyzable group;
each R ²³ is independently a hydrogen atom or a monovalent organic group;
each p1 is independently an integer from 0 to 3;
each q1 is independently an integer from 0 to 3;
each r1 is independently an integer from 0 to 3;
the sum of p1, q1 and r1 is 3 in units of (SiR ²¹ _p1 R ²² _q1 R ²³ _r1 );
each Z ^1' is independently an oxygen atom or a divalent organic group;
each R ^21′ is independently —Z ^1″ —SiR ^22″ _q1″ R ^23″ _r1″ ;
each R ^22' is independently a hydroxyl group or a hydrolyzable group;
each R ^23′ is independently a hydrogen atom or a monovalent organic group;
each p1' is independently an integer from 0 to 3;
each q1' is independently an integer from 0 to 3;
each r1' is independently an integer from 0 to 3;
the sum of p1′, q1′ and r1′ is 3 in units of (SiR ^21′ _p1′ R ^22′ _q1′ R ^23′ _r1′ );
Z ^1″ are each independently an oxygen atom or a divalent organic group;
each R ^22″ is independently a hydroxyl group or a hydrolyzable group;
each R ^23″ is independently a hydrogen atom or a monovalent organic group;
each q1″ is independently an integer from 0 to 3;
each r1″ is independently an integer from 0 to 3;
the sum of q1″ and r1″ is 3 in units of (SiR ^22″ _q1″ R ^23″ _r1″ );
each R ^b1 is independently a hydroxyl group or a hydrolyzable group;
each R ^c1 is independently a hydrogen atom or a monovalent organic group;
each k1 is independently an integer from 0 to 3;
each l1 is independently an integer from 0 to 3;
each m1 is independently an integer from 0 to 3;
the sum of k1, l1 and m1 is 3 in units of (SiR ^a1 _k1 R ^b1 _l1 R ^c1 _m1 );
each R ^d1 is independently -Z ² -CR ³¹ _p2 R ³² _q2 R ³³ _r2 ;
Z ² are each independently a single bond, an oxygen atom or a divalent organic group;
each R ³¹ is independently -Z ^2' -CR ^32' _q2' R ^33' _r2' ;
each R ³² is independently —Z ³ —SiR ³⁴ _n2 R ³⁵ _3-n2 ;
each R ³³ is independently a hydrogen atom, a hydroxyl group, or a monovalent organic group;
each p2 is independently an integer from 0 to 3;
each q2 is independently an integer from 0 to 3;
each r2 is independently an integer from 0 to 3;
^the sum _of p2, q2 and _r2 ^is 3 in units of ( ^{CR31p2R32q2R33r2} ) _;
Z ^2' are each independently a single bond, an oxygen atom or a divalent organic group;
each R ^32′ is independently —Z ³ —SiR ³⁴ _n2 R ³⁵ _3-n2 ;
each R ^33' is independently a hydrogen atom, a hydroxyl group, or a monovalent organic group;
each q2' is independently an integer from 0 to 3;
each r2' is independently an integer from 0 to 3;
the sum of q2′ and r2′ is 3 in units of (CR ^32′ _q2′ R ^33′ _r2′ );
Z ³ is each independently a single bond, an oxygen atom or a divalent organic group;
each R ³⁴ is independently a hydroxyl group or a hydrolyzable group;
each R ³⁵ is independently a hydrogen atom or a monovalent organic group;
each n2 is independently an integer from 0 to 3;
each R ^e1 is independently —Z ³ —SiR ³⁴ _n2 R ³⁵ _3-n2 ;
each R ^f1 is independently a hydrogen atom, a hydroxyl group, or a monovalent organic group;
k2 is each independently an integer from 0 to 3;
each l2 is independently an integer from 0 to 3;
each m2 is independently an integer from 0 to 3;
the sum of k2, l2 and m2 is 3 in units of (CR ^d1 _k2 R ^e1 _l2 R ^f1 _m2 );
R ^g1 and R ^h1 each independently represent -Z ⁴ -SiR ¹¹ _n1 R ¹² _3-n1 , -Z ⁴ -SiR ^a1 _k1 R ^b1 _l1 R ^c1 _m1 or -Z ⁴ -CR ^d1 _k2 R ^e1 _l2 R ^f1 _m2 ;
Z ⁴ are each independently a single bond, an oxygen atom or a divalent organic group;
However, in formulas (S1), (S2), (S3), (S4) and (S5), there is at least one Si atom to which a hydroxyl group or hydrolyzable group is bonded. ]
The surface treatment agent according to any one of [2] to [6] above, which is a group represented by
[8] The surface treatment agent according to any one of [2] to [7] above, wherein α1, β1, and γ1 are 1.
[9] X ^A is a single bond or the following formula:
-(R ⁵¹ ) _p5 -(X ⁵¹ ) _q5 -
[In the formula:
R ⁵¹ is a single bond, —(CH ₂ ) _s5 — or an o-, m- or p-phenylene group,
s5 is an integer from 1 to 20,
X ⁵¹ is -(X ⁵² ) _l5 -,
Each X ⁵² is independently —O—, —S—, o-, m- or p-phenylene group, —C(O)O—, —Si(R ⁵³ ) ₂ —, —(Si(R ⁵³ ) ₂ O) _m5 -Si(R ⁵³ ) ₂ -, -CONR ⁵⁴ -, -O-CONR ⁵⁴ -, -NR ⁵⁴ - and -(CH ₂ ) _n5 -, a group selected from the group consisting of
each R ⁵³ is independently a phenyl group, a C _1-6 alkyl group or a C _1-6 alkoxy group;
each R ⁵⁴ is independently a hydrogen atom, a phenyl group or a C _1-6 alkyl group;
m5 is each independently an integer of 1 to 100,
n5 are each independently an integer of 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 enclosed in parentheses with p5 or q5 is arbitrary;
The right side binds to R ^Si . ]
The surface treatment agent according to any one of [2] to [8] above, which is a divalent organic group represented by
[10] X ^A is the following formula:

[In the formula, each X ^a is independently a single bond or a divalent organic group. ]
The surface treatment agent according to any one of [2] to [8] above, which is a group represented by
[11] The polyoxyalkylene group-containing compound has the following formula (B):

[In the formula:
each R ^E is independently a monovalent to decavalent polyoxyalkylene group;
each X ^B is independently a single bond or a divalent to decavalent organic group;
R ^T is each independently a hydrogen atom, a C _1-6 alkyl group, —OR ⁶⁵ , —SR ⁶⁵ , —NR ⁶⁵ ₂ , —COOR ⁶⁵ , —COR ⁶⁵ , —OCOR ⁶⁵ , —CONR ⁶⁵ , —NR ⁶⁵ COR ⁶⁵ , a C _3-16 cycloalkyl group, a C _5-16 aryl group, or a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is bonded;
each R ⁶⁵ is independently a hydrogen atom or a C _1-6 alkyl group;
δ1 is an integer from 1 to 10;
δ2 is each independently an integer of 1-9. ]
The surface treatment agent according to any one of [1] to [10] above, which is a compound represented by
[12] ^RE is
R ⁶¹ -R ^E3 -O _q2 -,
-R ⁶² _p2 -R ^E3 -O _q2 -
X ^E (R ⁶² _p2 -R ^E3 -O _q2 ) _r2
[In the formula:
each R ^E3 is independently a divalent polyoxyalkylene group;
R ⁶¹ is a hydrogen atom or a C _1-6 alkyl group;
R ⁶² is a C _1-6 alkylene group;
X ^E is a 3- to 10-valent group;
p2 is 0 or 1;
each q2 is independently 0 or 1;
r2 is an integer from 3 to 10; ]
The surface treatment agent according to [11] above, which is a group represented by
[13] The polyoxyalkylene group-containing compound has the following formula (B1) or (B2):

[In the formula:
each R ^E1 is independently R ⁶¹ -R ^E3 -O _q2 -;
R ^E2 is -R ⁶² _p2 -R ^E3 -O _q2 -;
each R ^E3 is independently a divalent polyoxyalkylene group;
R ⁶¹ is a hydrogen atom or a C _1-6 alkyl group;
R ⁶² is a C _1-6 alkylene group;
p2 is 0 or 1;
each q2 is independently 0 or 1;
R ^T is each independently a hydrogen atom, a C _1-6 alkyl group, —OR ⁶⁵ , —SR ⁶⁵ , —NR ⁶⁵ ₂ , —COOR ⁶⁵ , —COR ⁶⁵ , —OCOR ⁶⁵ , —CONR ⁶⁵ , —NR ⁶⁵ COR ⁶⁵ , a C _3-16 cycloalkyl group, a C _5-16 aryl group, or a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is bonded;
each R ⁶⁵ is independently a hydrogen atom or a C _1-6 alkyl group;
each X ^B is independently a single bond or a divalent to decavalent organic group;
α2 is an integer from 1 to 9;
β2 is an integer from 1 to 9;
γ2 is each independently an integer of 1-9. ]
The surface treatment agent according to the above [11] or [12], which is a compound represented by
[14] R ^E3 is each independently represented by the formula:
- (OR ⁶³ ) _a1 -
[In the formula,
R ⁶³ is a C _1-6 alkylene group,
a1 is an integer from 2 to 30; ]
The surface treatment agent according to [13] above, which is a group represented by
[15] Any of the above [11] to [14], wherein each R ^T is independently a hydrogen atom, a C _1-6 alkyl group, a C _3-16 cycloalkyl group, or a C _5-16 aryl group 1. The surface treatment agent according to claim 1.
[16] R ^T each independently represents -OR ⁶⁵ , -SR ⁶⁵ , -NR ⁶⁵ ₂ , -COOR ⁶⁵ , -COR ⁶⁵ , -OCOR ⁶⁵ , -CONR ⁶⁵ , -NR ⁶⁵ COR ⁶⁵ or a hydroxyl group; The surface treatment agent according to any one of [11] to [14] above, which is a monovalent group containing a Si atom to which a hydrolyzable group, a hydrogen atom, or a monovalent organic group is bonded.
[17] The surface treating agent according to any one of [11] to [14] above, wherein each R 1 ^T is independently a hydrogen atom or a hydroxyl group.
[18] Each R ^T is independently a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent group containing a Si atom to which a monovalent organic group is bonded, according to the above [11] to [14]. The surface treatment agent according to any one of items 1 and 2.
[19] The surface treatment agent according to any one of [13] to [18] above, wherein α2, β2, and γ2 are 1.
[20] X ^B is each independently a single bond or the following formula:
-(R ⁵¹ ) _p5 -(X ⁵¹ ) _q5 -
[In the formula:
R ⁵¹ is a single bond, —(CH ₂ ) _s5 — or an o-, m- or p-phenylene group,
s5 is an integer from 1 to 20,
X ⁵¹ is -(X ⁵² ) _l5 -,
Each X ⁵² is independently —O—, —S—, o-, m- or p-phenylene group, —C(O)O—, —Si(R ⁵³ ) ₂ —, —(Si(R ⁵³ ) ₂ O) _m5 -Si(R ⁵³ ) ₂ -, -CONR ⁵⁴ -, -O-CONR ⁵⁴ -, -NR ⁵⁴ - and -(CH ₂ ) _n5 -, a group selected from the group consisting of
each R ⁵³ is independently a phenyl group, a C _1-6 alkyl group or a C _1-6 alkoxy group;
each R ⁵⁴ is independently a hydrogen atom, a phenyl group or a C _1-6 alkyl group;
m5 is each independently an integer of 1 to 100,
n5 are each independently an integer of 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 enclosed in parentheses with p5 or q5 is arbitrary;
The right side binds to ^RT . ]
The surface treatment agent according to any one of [11] to [19] above, which is a divalent organic group represented by
[21] The above [1], which is a two-part system comprising component (A): a first liquid containing a fluoropolyether group-containing silane compound, and component (B): a second liquid containing a polyoxyalkylene group-containing compound. The surface treatment agent according to any one of [20].
[22] The content of the component (B) is 0.1 to 30 parts by mass with respect to 100 parts by mass of the component (A), according to any one of the above [1] to [21] Surface treatment agent.
[23] The surface treatment according to any one of [1] to [22] above, further containing one or more other components selected from fluorine-containing oils, silicone oils, alcohols, and catalysts. agent.
[24] The surface treatment agent according to any one of [1] to [23] above, further comprising a solvent.
[25] The surface treatment agent according to any one of [1] to [24] above, which is used as an antifouling coating agent or a waterproof coating agent.
[26] A pellet containing the surface treatment agent according to any one of [1] to [25] above.
[27] An article comprising a substrate and a layer formed on the substrate from the surface treating agent according to any one of [1] to [25] above.
[28] The article according to [27] above, wherein the substrate is a glass substrate.
[29] The article according to [28] above, which is an optical member.

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

As used herein, "monovalent organic radical" means a monovalent radical containing carbon. Although the monovalent organic group is not particularly limited, it may be a hydrocarbon group or a derivative thereof. A derivative of a hydrocarbon group is a group having one or more of N, O, S, Si, amide, sulfonyl, siloxane, carbonyl, carbonyloxy, etc. at the end of the hydrocarbon group or in the molecular chain. means In addition, when it shows simply as an "organic group", it means a monovalent organic group. Further, the “divalent to decavalent organic group” means a divalent to decavalent group containing carbon. Such a divalent to decavalent organic group is not particularly limited, but includes a divalent to decavalent group in which 1 to 9 hydrogen atoms are further eliminated from an organic group. For example, the divalent organic group is not particularly limited, but includes a divalent group in which one hydrogen atom is further eliminated from the organic group.

As used herein, "hydrocarbon group" means a group containing carbon and hydrogen from which one hydrogen atom has been removed from a hydrocarbon. Examples of such hydrocarbon groups include, but are not limited to, C _1-20 hydrocarbon groups such as aliphatic hydrocarbon groups and aromatic hydrocarbon groups. The above "aliphatic hydrocarbon group" may be linear, branched or cyclic, and may be saturated or unsaturated. Hydrocarbon groups may also contain one or more ring structures. The hydrocarbon groups may be optionally substituted with one or more substituents.

As used herein, the substituent of the "hydrocarbon group" is not particularly limited, but for example, a halogen atom, C _1-6 alkyl optionally substituted by one or more halogen atoms group, C _2-6 alkenyl group, C _2-6 alkynyl group, C _3-10 cycloalkyl group, C _3-10 unsaturated cycloalkyl group, 5-10 membered heterocyclyl group, 5-10 membered unsaturated heterocyclyl groups, C _6-10 aryl groups and 5-10 membered heteroaryl groups.

As used herein, "hydrolyzable group" means a group capable of undergoing a hydrolysis reaction, ie, a group capable of being detached from the backbone of a compound by a hydrolysis reaction. Examples of hydrolyzable groups include -OR ^j , -OCOR ^j , -ON=CR ^j ₂ , -NR ^j ₂ , -NHR ^j , -NCO, halogen (wherein R ^j is a substituted or represents an unsubstituted C _1-4 alkyl group).

The surface treatment agent of the present disclosure includes component (A): a fluoropolyether group-containing silane compound, and component (B): a polyoxyalkylene group-containing compound.

The surface treatment agent of the present disclosure can provide a surface treatment layer with improved friction durability by further including a polyoxyalkylene group-containing compound in addition to the fluoropolyether group-containing silane compound.

(Fluoropolyether group-containing silane compound)
The fluoropolyether group-containing silane compound is a compound containing a fluoropolyether group-containing silane compound.

In one aspect, the fluoropolyether group-containing silane compound has the following formula (A1) or (A2):
[In the formula:
each R ^F1 is independently Rf ¹ —R ^F —O _q —;
R ^F2 is -Rf ² _p -R ^F -O _q -;
each R ^F is independently a divalent fluoropolyether group;
each Rf ¹ is independently a C _1-16 alkyl group optionally substituted by one or more fluorine atoms;
Rf ² is a C _1-6 alkylene group optionally substituted by one or more fluorine atoms;
p is 0 or 1;
each q is independently 0 or 1;
R ^Si is each independently a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is bonded;
at least one R ^Si is a monovalent group comprising a Si atom to which a hydroxyl group or a hydrolyzable group is attached;
each X ^A is independently a single bond or a divalent to decavalent organic group;
α1 is an integer from 1 to 9;
β1 is an integer from 1 to 9;
γ1 is each independently an integer of 1-9. ]
is a fluoropolyether group-containing silane compound represented by

In formula (A1) above, each R ^F1 is independently Rf ¹ —R ^F —O _q —.

In formula (A2) above, R ^F2 is —Rf ² _p —R ^F —O _q —.

In the above formula, each Rf ¹ is independently a C _1-16 alkyl group optionally substituted by one or more fluorine atoms.

The "C _1-16 alkyl group" in the C _1-16 alkyl group optionally substituted by one or more fluorine atoms may be linear or branched, preferably is a straight or branched C _1-6 alkyl group, especially a C _1-3 alkyl group, more preferably a straight chain C _1-6 alkyl group, especially a C _1-3 alkyl group.

Rf ¹ is preferably a C _1-16 alkyl group substituted with one or more fluorine atoms, more preferably a CF ₂ H—C _1-15 perfluoroalkylene group, still more preferably It is a C _1-16 perfluoroalkyl group.

The C _1-16 perfluoroalkyl group may be linear or branched, preferably a linear or branched C _1-6 perfluoroalkyl group, especially C _{1- 3} perfluoroalkyl group, more preferably a linear C _1-6 perfluoroalkyl group, particularly a C _1-3 perfluoroalkyl group, specifically -CF ₃ , -CF ₂ CF ₃ , or -CF ₂ CF ₂ CF ₃ .

In the above formula, Rf ² is a C _1-6 alkylene group optionally substituted by one or more fluorine atoms.

The "C _1-6 alkylene group" in the C _1-6 alkylene group optionally substituted by one or more fluorine atoms may be linear or branched, preferably is a linear or branched C _1-3 alkylene group, more preferably a linear C _1-3 alkylene group.

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

The C _1-6 perfluoroalkylene group may be linear or branched, preferably a linear or branched C _1-3 perfluoroalkylene group, more preferably is a linear C _1-3 perfluoroalkylene group, specifically -CF ₂ -, -CF ₂ CF ₂ -, or -CF ₂ CF ₂ CF ₂ -.

In the above formula, p is 0 or 1. In one aspect, p is zero. In another aspect, p is 1.

In the above formula, each q is 0 or 1 independently. In one aspect, q is zero. In another aspect q is 1.

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

R ^F is preferably:
- (OC _h1 R ^Fa _2h1 ) _h3 - (OC _h2 R ^Fa _2h2-2 ) _h4 -
[In the formula:
R ^Fa is independently at each occurrence a hydrogen atom, a fluorine atom, or a chlorine atom;
h1 is an integer from 1 to 6,
h2 is an integer from 4 to 8,
h3 is an integer of 0 or more,
h4 is an integer of 0 or more,
However, the composition of h3 and h4 is 1 or more, preferably 2 or more, more preferably 5 or more, and the order of existence of each repeating unit bracketed with h3 and h4 is Optional. ]
It may contain a group represented by

In one aspect, R ^F can be linear or branched. R ^F preferably has the formula:
- (OC ₆ F ₁₂ ) _a - (OC ₅ F ₁₀ ) _b - (OC ₄ F ₈ ) _c - (OC ₃ R ^Fa ₆ ) _d - (OC ₂ F ₄ ) _e - (OCF ₂ ) _f -
[In the formula:
each R ^Fa is independently a hydrogen atom, a fluorine atom or a chlorine atom,
a, b, c, d, e and f are each independently integers from 0 to 200, and the sum of a, b, c, d, e and f is 1 or more. The order of existence of each repeating unit bracketed with a, b, c, d, e or f is arbitrary in the formula. However, when all ^RFa are hydrogen atoms or chlorine atoms, at least one of a, b, c, e and f is 1 or more. ]
is a group represented by

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

a, b, c, d, e and f may preferably each independently be an integer from 0 to 100.

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

These repeating units may be linear or branched. _For example, -( _{OC6F12 ) - is} -( _{OCF2CF2CF2CF2CF2CF2} ) _{- ,} -( _OCF ( _CF3 ) _{CF2CF2CF2CF2 )} -, - ₍ OCF ₂ CF (CF ₃ ) CF ₂ CF ₂ CF ₂ )-, - (OCF ₂ CF ₂ CF (CF ₃ ) CF ₂ CF ₂ )-, - (OCF ₂ CF ₂ CF ₂ CF (CF ₃ ) CF ₂ )- , -(OCF ₂ CF ₂ CF ₂ CF ₂ CF(CF ₃ ))- and the like. -( _OC5F10 )- is -( _{OCF2CF2CF2CF2CF2 ) - ,} -( _{OCF ( CF3} ) _CF2CF2CF2 )-, _{- ( OCF2CF} ( _CF3 ) CF ₂ CF ₂ )-, -(OCF ₂ CF ₂ CF(CF ₃ )CF ₂ )-, -(OCF ₂ CF ₂ CF ₂ CF(CF ₃ ))- and the like. -( _OC4F8 )- is -( _{OCF2CF2CF2CF2 ) -} , -( _OCF ( _CF3 ) _CF2CF2 )- _, -( _OCF2CF ( _CF3 ) _CF2 ) _- , -( _OCF2CF2CF ( _CF3 ))-, - ₍ OC( _CF3 ) _2CF2 )-, -( _OCF2C ( _CF3 ) ₂ ) _- , -(OCF( _CF3 )CF( CF ₃ ))-, -(OCF(C ₂ F ₅ )CF ₂ )- and -(OCF ₂ CF(C ₂ F ₅ ))-. -(OC ₃ F ₆ )- (that is, in the above formula, R 3 ^Fa is a fluorine atom) is represented by -(OCF ₂ CF ₂ CF ₂ )-, -(OCF(CF ₃ )CF ₂ )- and -( OCF ₂ CF(CF ₃ ))—. -(OC ₂ F ₄ )- may be either -(OCF ₂ CF ₂ )- or -(OCF(CF ₃ ))-.

In one aspect, the repeating unit is linear. By making the repeating unit linear, it is possible to improve the surface lubricity, friction durability, and the like of the surface treatment layer.

In one aspect, the repeat unit is branched. By branching the repeating unit, the dynamic friction coefficient of the surface treatment layer can be increased.

In one aspect, R ^F can include a ring structure.

［式中、＊は、結合位置を示す。］ The ring structure may be the following three-membered ring, four-membered ring, five-membered ring, or six-membered ring.

[In the formula, * indicates a binding position. ]

The ring structure can be preferably a four-, five- or six-membered ring, more preferably a four- or six-membered ring.

［式中、＊は、結合位置を示す。］ The repeating unit having a ring structure can preferably be the following units.

[In the formula, * indicates a binding position. ]

（式中、＊は、結合位置を示す。）
である。］；
－（ＯＣ_６Ｆ_１２）_ａ－（ＯＣ_５Ｆ_１０）_ｂ－（ＯＣ_４Ｆ_８）_ｃ－（ＯＣ_３Ｆ_６）_ｄ－（ＯＣ_２Ｆ_４）_ｅ－（ＯＣＦ_２）_ｆ－ （ｆ５）
［式中、ｅは、１以上２００以下の整数であり、ａ、ｂ、ｃ、ｄ及びｆは、それぞれ独立して０以上２００以下の整数であって、また、ａ、ｂ、ｃ、ｄ、ｅ又はｆを付して括弧でくくられた各繰り返し単位の存在順序は式中において任意である。］
－（ＯＣ_６Ｆ_１２）_ａ－（ＯＣ_５Ｆ_１０）_ｂ－（ＯＣ_４Ｆ_８）_ｃ－（ＯＣ_３Ｆ_６）_ｄ－（ＯＣ_２Ｆ_４）_ｅ－（ＯＣＦ_２）_ｆ－ （ｆ６）
［式中、ｆは、１以上２００以下の整数であり、ａ、ｂ、ｃ、ｄ及びｅは、それぞれ独立して０以上２００以下の整数であって、また、ａ、ｂ、ｃ、ｄ、ｅ又はｆを付して括弧でくくられた各繰り返し単位の存在順序は式中において任意である。］ In one embodiment, each R 1 ^F is independently a group represented by any one of the following formulas (f1) to (f6).
-(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e - (f1)
[Wherein, d is an integer of 1 to 200, and e is 0 or 1. ];
-(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f2)
[Wherein, c and d are each independently an integer of 0 or more and 30 or less, e and f are each independently an integer of 1 or more and 200 or less,
the sum of c, d, e and f is greater than or equal to 2;
The order of existence of each repeating unit bracketed with subscript c, d, e or f is arbitrary in the formula. ];
-(R ⁶ -R ⁷ ) _g - (f3)
[wherein R ⁶ is OCF ₂ or OC ₂ F ₄ ;
R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ or 2 independently selected from these groups or a combination of three groups,
g is an integer from 2 to 100; ];
—(R ⁶ —R ⁷ ) _g —R ^r —(R ^7′ —R ^6′ ) _g′ − (f4)
[wherein R ⁶ is OCF ₂ or OC ₂ F ₄ ;
R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ or 2 independently selected from these groups or a combination of three groups,
R ^6' is OCF ₂ or OC ₂ F ₄ ;
R ^7′ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ or independently selected from these groups a combination of two or three groups,
g is an integer from 2 to 100,
g' is an integer from 2 to 100,
^Rr is

(In the formula, * indicates the binding position.)
is. ];
- (OC ₆ F ₁₂ ) _a - (OC ₅ F ₁₀ ) _b - (OC ₄ F ₈ ) _c - (OC ₃ F ₆ ) _d - (OC ₂ F ₄ ) _e - (OCF ₂ ) _f - (f5)
[Wherein, 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 a, b, c, d , e or f in parentheses may be present in any order in the formula. ]
- (OC ₆ F ₁₂ ) _a - (OC ₅ F ₁₀ ) _b - (OC ₄ F ₈ ) _c - (OC ₃ F ₆ ) _d - (OC ₂ F ₄ ) _e - (OCF ₂ ) _f - (f6)
[Wherein, 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 a, b, c, d , e or f in parentheses may be present in any order in the formula. ]

In the above formula (f1), d is preferably an integer of 5-200, more preferably 10-100, still more preferably 15-50, for example 25-35. OC ₃ F ₆ in the above formula (f1) is preferably (OCF ₂ CF ₂ CF ₂ ), (OCF(CF ₃ )CF ₂ ) or (OCF ₂ CF(CF ₃ )), more preferably _{( OCF2CF2CF2 )} . In one aspect, e is zero. In another aspect, e is 1. (OC ₂ F ₄ ) in the above formula (f1) is preferably (OCF ₂ CF ₂ ) or (OCF(CF ₃ )), more preferably (OCF ₂ CF ₂ ).

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

In formula (f3) above, R ⁶ is preferably OC ₂ F ₄ . In (f3) above, R ⁷ is preferably a group selected from OC ₂ F ₄ , OC ₃ F ₆ and OC ₄ F ₈ , or 2 independently selected from these groups, or A combination of three groups, more preferably a group selected from OC ₃ F ₆ and OC ₄ F ₈ . The combination of two or three groups independently selected from OC ₂ F ₄ , OC ₃ F ₆ and OC ₄ F ₈ is not particularly limited, but for example -OC ₂ F ₄ OC ₃ F ₆ -, -OC _{2F4OC4F8- , -OC3F6OC2F4- , -OC3F6OC3F6- , -OC3F6OC4F8- , -OC4F8OC4F _ _ _ _ _ _ _ _ _ _ 8- , -OC4F8OC3F6- , -OC4F8OC2F4- , -OC2F4OC2F4OC3F6- , -OC2F4OC2F4OC _ _ _ _ _ _ _ _ _ _ 4F8- , -OC2F4OC3F6OC2F4- , -OC2F4OC3F6OC3F6- , -OC2F4OC4F8OC2F4- , _ _ _ _ _ _ _ _ _ _ _ _ -OC3F6OC2F4OC2F4- , -OC3F6OC2F4OC3F6- , -OC3F6OC3F6OC2F4- , and -OC4F _ _ _ _ _ _ _ _ _ _ _ 8} OC ₂ F ₄ OC ₂ F ₄ - and the like. In the above formula (f3), g is an integer of preferably 3 or more, more preferably 5 or more. Said g is preferably an integer of 50 or less. In formula (f3) above, OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ may be linear or branched, preferably linear. is a chain. In this aspect, the above formula (f3) is preferably -(OC ₂ F ₄ -OC ₃ F ₆ ) _g - or -(OC ₂ F ₄ -OC ₄ F ₈ ) _g -.

［式中、＊は、結合位置を示す。］
であり、より好ましくは

［式中、＊は、結合位置を示す。］
である。 In formula (f4) above, R ⁶ , R ⁷ and g have the same meanings as in formula (f3) above, and have the same aspects. R ^6′ , R ^7′ and g′ have the same meanings as R ⁶ , R ⁷ and g in formula (f3) above, respectively, and have the same aspects. R ^r is preferably

[In the formula, * indicates a binding position. ]
and more preferably

[In the formula, * indicates a binding position. ]
is.

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

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

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

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

In one aspect, R ^F is a group represented by formula (f3) above.

In one aspect, R ^F is a group represented by formula (f4) above.

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

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

In ^RF , 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. , more preferably 0.2 to 1.5, and even more preferably 0.2 to 0.85. By setting the e/f ratio to 10 or less, the slipperiness, friction durability and chemical resistance (for example, durability against artificial perspiration) of the surface treatment layer obtained from this compound are further improved. The smaller the e/f ratio, the more improved the sliding property and friction durability of the surface treatment layer. On the other hand, by setting the e/f ratio to 0.1 or more, the stability of the compound can be further enhanced. The higher the e/f ratio, the more stable the compound.

In one aspect, the e/f ratio is preferably 0.2 to 0.95, more preferably 0.2 to 0.9.

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

In the fluoropolyether group-containing silane compound, the number average molecular weights of the R ^{1 F1} and R ^{2 F2} moieties are not particularly limited, but are for example 500 to 30,000, preferably 1,500 to 30,000, more preferably 1,500 to 30,000. is between 2,000 and 10,000. In this specification, the number average molecular weights of R ^F1 and R ^F2 are values measured by ¹⁹ F-NMR.

In another embodiment, the R ^F1 and R ^F2 moieties have a number average molecular weight of 500 to 30,000, preferably 1,000 to 20,000, more preferably 2,000 to 15,000, even more preferably 2,000. 000 to 10,000, such as 3,000 to 6,000.

In another aspect, the number average molecular weight of the R ^F1 and R ^F2 moieties can be from 4,000 to 30,000, preferably from 5,000 to 10,000, more preferably from 6,000 to 10,000.

In the above formulas (A1) and (A2), each R ^Si is independently a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent group containing a Si atom to which a monovalent organic group is bonded, and at least One R ^Si is a monovalent group containing a Si atom to which a hydroxyl group or hydrolyzable group is attached.

As used herein, the term "hydrolyzable group" means a group capable of undergoing a hydrolysis reaction, that is, a group capable of being eliminated from the main skeleton of a compound by a hydrolysis reaction. Examples of hydrolyzable groups include -OR ^j , -OCOR ^j , -ON=CR ^j ₂ , -NR ^j ₂ , -NHR ^j , -NCO, halogen (wherein R ^j is a substituted or represents an unsubstituted C _1-4 alkyl group).

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

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

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

Each R ¹¹ is preferably independently a hydrolyzable group.

R ¹¹ is preferably each independently -OR ^j , -OCOR ^j , -ON=CR ^j ₂ , -NR ^j ₂ , -NHR ^j , -NCO, or halogen (wherein R ^j represents a substituted or unsubstituted C _1-4 alkyl group), more preferably —OR ^j (ie, an alkoxy group). Examples of R ^j include unsubstituted alkyl groups such as methyl group, ethyl group, propyl group, isopropyl group, n-butyl group and isobutyl group; and substituted alkyl groups such as chloromethyl group. Among them, an alkyl group, particularly an unsubstituted alkyl group is preferable, and a methyl group or an ethyl group is more preferable. In one aspect, R ^j is a methyl group, and in another aspect R ^j is an ethyl group.

In the formula above, each R ¹² is independently a hydrogen atom or a monovalent organic group. Such a monovalent organic group is a monovalent organic group excluding the above hydrolyzable group.

In R ¹² , 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.

In the above formula, n1 is an integer of 0 to 3 independently for each (SiR ¹¹ _n1 R ¹² _3-n1 ) unit. However, when R ^Si is a group represented by formula (S1) or (S2), the terminal R ^Si portion of formulas (A1) and (A2) (hereinafter simply referred to as formula (A1) and formula (A2) (also referred to as the “terminal portion” of), there is at least one (SiR ¹¹ _n1 R ¹² _3-n1 ) unit where n1 is 1-3. That is, not all n1's are 0 at the same time. In other words, at least one Si atom to which a hydroxyl group or a hydrolyzable group is bonded is present in the terminal portions of formulas (A1) and (A2).

n1 is preferably an integer of 1 to 3, more preferably 2 to 3, still more preferably 3, independently for each (SiR ¹¹ _n1 R ¹² _3-n1 ) unit.

In the above formula, each X ¹¹ is independently a single bond or a divalent organic group. Such divalent organic groups are preferably —R ²⁸ —O _x —R ²⁹ — (wherein R ²⁸ and R ²⁹ are each independently a single bond or a C _1-20 alkylene group, x is 0 or 1). Such C _1-20 alkylene groups may be straight chain or branched, but are preferably straight chain. Such C _1-20 alkylene groups are preferably C _1-10 alkylene groups, more preferably C _1-6 alkylene groups, still more preferably C _1-3 alkylene groups.

In one aspect, each X ¹¹ is independently -C _1-6 alkylene-O-C _1-6 alkylene- or -O-C _1-6 alkylene-.

In a preferred embodiment, each X ¹¹ is independently a single bond or a linear C _1-6 alkylene group, preferably a single bond or a linear C _1-3 alkylene group, more preferably a single bond or a linear It is a chain C _1-2 alkylene group, more preferably a linear C _1-2 alkylene group.

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

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

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

In a preferred embodiment, each t is independently an integer from 2-10, preferably an integer from 2-6.

In the above formula, each R ¹⁴ is independently a hydrogen atom, a halogen atom or —X ¹¹ —SiR ¹¹ _n1 R ¹² _3-n1 . Such a halogen atom is preferably an iodine atom, a chlorine atom or a fluorine atom, more preferably a fluorine atom. In preferred embodiments, R ¹⁴ is a hydrogen atom.

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

In one embodiment, each occurrence of R ¹⁵ is independently an oxygen atom, a C 1-6 alkylene group, or a C 1-6 alkyleneoxy group.

In a preferred embodiment R ¹⁵ is a single bond.

In one aspect, formula (S1) is the following formula (S1-a).
[In the formula,
R ¹¹ , R ¹² , R ¹³ , X ¹¹ , and n1 have the same meanings as described in formula (S1) above;
t1 and t2 are each independently an integer of 1 or more, preferably an integer of 1 to 10, more preferably an integer of 2 to 10, such as an integer of 1 to 5 or an integer of 2 to 5;
The order of existence of each repeating unit bracketed with t1 and t2 is arbitrary in the formula. ]

In a preferred embodiment, formula (S1) is the following formula (S1-b).
[Wherein, R ¹¹ , R ¹² , R ¹³ , X ¹¹ , n1 and t have the same meanings as described in formula (S1) above]

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

Each Z ¹ above is independently an oxygen atom or a divalent organic group. In the structure described below as Z ¹ , the right side is bound to (SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ).

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

In a preferred embodiment, Z ¹ does not include those that form 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.

The above Z ¹ is preferably a C _1-6 alkylene group, —(CH ₂ ) _z1 —O—(CH ₂ ) _z2 — (wherein z1 is an integer of 0 to 6, for example an integer of 1 to 6 and z2 is an integer of 0 to 6, such as an integer of 1 to 6) or -(CH ₂ ) _z3 -phenylene-(CH ₂ ) _z4 -, wherein z3 is an integer of 0 to 6, For example, it is an integer from 1 to 6, and z4 is an integer from 0 to 6, such as an integer from 1 to 6). Such C _1-6 alkylene groups may be linear or branched, but are preferably linear. These groups may be substituted with one or more substituents selected from, for example, fluorine atoms, C _1-6 alkyl groups, C _2-6 alkenyl groups, and C _2-6 alkynyl groups. is preferably unsubstituted.

In a preferred embodiment, Z ¹ is a C _1-6 alkylene group or -(CH ₂ ) _z3 -phenylene-(CH ₂ ) _z4 -, preferably -phenylene-(CH ₂ ) _z4 -. When Z ¹ is such a group, higher light resistance, especially UV resistance, can be achieved.

In another preferred embodiment, Z ¹ above is a C _1-3 alkylene group. In one aspect, Z ¹ can be -CH ₂ CH ₂ CH ₂ -. In another aspect, Z ¹ can be -CH ₂ CH ₂ -.

Each R ²¹ is independently —Z ^1′ —SiR ^21′ _p1′ R ^22′ _q1′ R ^23′ _r1′ .

Each Z ^1′ above is independently an oxygen atom or a divalent organic group. In the structure described as Z ^1′ below, the right side is bound to (SiR ^21′ _p1′ R ^22′ _q1′ R ^23′ _r1′ ).

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

In a preferred embodiment, Z ^1' does not include those that form 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.

The above Z ^1′ is preferably a C _1-6 alkylene group, —(CH ₂ ) _z1′ —O—(CH ₂ ) _z2′ — (wherein z1′ is an integer of 0 to 6, for example 1 to is an integer of 6 and z2' is an integer of 0 to 6, such as an integer of 1 to 6) or -(CH ₂ ) _z3' -phenylene-(CH ₂ ) _z4' - (wherein z3' is an integer from 0 to 6, such as an integer from 1 to 6, and z4' is an integer from 0 to 6, such as an integer from 1 to 6). Such C _1-6 alkylene groups may be linear or branched, but are preferably linear. These groups may be substituted with one or more substituents selected from, for example, fluorine atoms, C _1-6 alkyl groups, C _2-6 alkenyl groups, and C _2-6 alkynyl groups. is preferably unsubstituted.

In a preferred embodiment, Z ^1' is a C _1-6 alkylene group or -(CH ₂ ) _z3' -phenylene-(CH ₂ ) _z4' -, preferably -phenylene-(CH ₂ ) _z4' -. When Z ^1′ is such a group, it can have higher light resistance, especially UV resistance.

In another preferred embodiment, Z ^1′ above is a C _1-3 alkylene group. In one aspect, Z ^1' can be -CH ₂ CH ₂ CH ₂ -. In another aspect, Z ^1' can be -CH ₂ CH ₂ -.

Each R ^21′ is independently —Z ^1″ —SiR ^22″ _q1″ R ^23″ _r1″ .

Each Z ^{1″ above} _is independently an oxygen atom or a ^divalent _organic group ^. do.

In preferred embodiments, Z ^1″ is a divalent organic group.

In a preferred embodiment, Z ^1″ does not include those that form a siloxane bond with the Si atom to which Z ^1″ is bonded. Preferably, in formula (S3), (Si—Z ^1″ —Si) does not contain a siloxane bond.

The above Z ^1″ is preferably a C _1-6 alkylene group, —(CH ₂ ) _z1″ —O—(CH ₂ ) _z2″ — (wherein z1″ is an integer of 0 to 6, for example 1 to is an integer of 6, and z2″ is an integer of 0 to 6, such as an integer of 1 to 6) or —(CH ₂ ) _z3″ —phenylene-(CH ₂ ) _z4″ —, wherein z3″ is an integer from 0 to 6, such as an integer from 1 to 6, and z4″ is an integer from 0 to 6, such as an integer from 1 to 6). Such C _1-6 alkylene groups are linear or branched, but preferably straight-chain, these groups are, for example, fluorine atoms, C _1-6 alkyl groups, C _2-6 alkenyl groups, and C _2- It may be substituted with one or more substituents selected from ₆ alkynyl groups, but is preferably unsubstituted.

In a preferred embodiment, Z ^1″ is a C _1-6 alkylene group or -(CH ₂ ) _z3″ -phenylene-(CH ₂ ) _z4″ -, preferably -phenylene-(CH ₂ ) _z4″ -. When Z ^1″ is such a group, it can be more light-resistant, especially UV-resistant.

In another preferred aspect, Z ^1″ is a C _1-3 alkylene group. In one aspect, Z ^1″ can be —CH ₂ CH ₂ CH ₂ —. In another aspect, Z ^1″ can be —CH ₂ CH ₂ —.

Each R ^22″ is independently a hydroxyl group or a hydrolyzable group.

Each R ^22″ is preferably independently a hydrolyzable group.

R ^{22 ″} is preferably each independently —OR ^j , —OCOR ^j , —ON=CR ^j ₂ , —NR ^j ₂ , —NHR ^j , —NCO, or halogen (wherein R ^j represents a substituted or unsubstituted C _1-4 alkyl group), more preferably -OR ^j (that is, an alkoxy group), where R ^j is a methyl group, an ethyl group, a propyl group, or an isopropyl substituted alkyl groups such as chloromethyl group, etc. Among them, alkyl groups, particularly unsubstituted alkyl groups, are preferred, and methyl or ethyl groups are more preferred. Preferred, in one aspect, R ^j is a methyl group, and in another aspect, R ^j is an ethyl group.

Each R ^23″ is independently a hydrogen atom or a monovalent organic group. Such a monovalent organic group is a monovalent organic group excluding the above hydrolyzable groups.

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

Each q1″ is independently an integer of 0 to 3, and each of the above r1″ is independently an integer of 0 to 3. The sum of q1″ and r1″ is 3 in units of (SiR ^22″ _q1″ R ^23″ _r1″ ).

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

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

Each R ^22′ is preferably independently a hydrolyzable group.

R ^22′ is preferably each independently —OR ^j , —OCOR ^j , —ON=CR ^j ₂ , —NR ^j ₂ , —NHR ^j , —NCO, or halogen (wherein R ^j represents a substituted or unsubstituted C _1-4 alkyl group), more preferably -OR ^j (ie, an alkoxy group). Examples of R ^j include unsubstituted alkyl groups such as methyl group, ethyl group, propyl group, isopropyl group, n-butyl group and isobutyl group; and substituted alkyl groups such as chloromethyl group. Among them, an alkyl group, particularly an unsubstituted alkyl group is preferable, and a methyl group or an ethyl group is more preferable. In one aspect, R ^j is a methyl group, and in another aspect R ^j is an ethyl group.

Each R ^23′ is independently a hydrogen atom or a monovalent organic group. Such a monovalent organic group is a monovalent organic group excluding the above hydrolyzable group.

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

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

In one aspect, p1' is zero.

In one embodiment, p1' is an integer of 1 to 3, an integer of 2 to 3, or 3 independently for each (SiR ^21' _p1' R ^22' _q1' R ^23' _r1' ) unit. may In a preferred embodiment, p1' is 3.

In one embodiment, q1' is an integer of 1 to 3, preferably an integer of 2 to 3, each independently for each (SiR ^21' _p1' R ^22' _q1' R ^23' _r1' ) unit, 3 is more preferable.

In one aspect, p1' is 0 and q1' is an integer of 1 to 3 independently for each (SiR ^21' _p1' R ^22' _q1' R ^23' _r1' ) unit, preferably is an integer of 2-3, more preferably 3.

Each ^R22 is independently a hydroxyl group or a hydrolyzable group.

R ²² is preferably each independently a hydrolyzable group.

R ²² is preferably each independently -OR ^j , -OCOR ^j , -ON=CR ^j ₂ , -NR ^j ₂ , -NHR ^j , -NCO, or halogen (wherein R ^j represents a substituted or unsubstituted C _1-4 alkyl group), more preferably —OR ^j (ie, an alkoxy group). Examples of R ^j include unsubstituted alkyl groups such as methyl group, ethyl group, propyl group, isopropyl group, n-butyl group and isobutyl group; and substituted alkyl groups such as chloromethyl group. Among them, an alkyl group, particularly an unsubstituted alkyl group is preferable, and a methyl group or an ethyl group is more preferable. In one aspect, R ^j is a methyl group, and in another aspect R ^j is an ethyl group.

Each ^R23 is independently a hydrogen atom or a monovalent organic group. Such a monovalent organic group is a monovalent organic group excluding the above hydrolyzable group.

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

Each p1 is independently an integer of 0 to 3, each q1 is independently an integer of 0 to 3, and each r1 is independently an integer of 0 to 3. The sum of p1, q1 and r1 is 3 in units of (SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ).

In one aspect, p1 is zero.

In one aspect, p1 may be an integer of 1 to 3, an integer of 2 to 3, or 3 independently for each (SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ) unit. In a preferred embodiment, p1 is 3.

In one aspect, q1 is an integer of 1 to 3, preferably an integer of 2 to 3, more preferably 3, independently for each (SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ) unit.

In one embodiment, p1 is 0 and q1 is independently an integer of 1 to 3, preferably an integer of 2 to 3, for each (SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ) unit. 3 is preferred.

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

R ^b1 is preferably each independently a hydrolyzable group.

R ^b1 is preferably each independently -OR ^j , -OCOR ^j , -ON=CR ^j ₂ , -NR ^j ₂ , -NHR ^j , -NCO, or halogen (wherein R ^j represents a substituted or unsubstituted C _1-4 alkyl group), more preferably —OR ^j (ie, an alkoxy group). Examples of R ^j include unsubstituted alkyl groups such as methyl group, ethyl group, propyl group, isopropyl group, n-butyl group and isobutyl group; and substituted alkyl groups such as chloromethyl group. Among them, an alkyl group, particularly an unsubstituted alkyl group is preferable, and a methyl group or an ethyl group is more preferable. In one aspect, R ^j is a methyl group, and in another aspect R ^j is an ethyl group.

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

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

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

In one aspect, k1 is independently an integer of 1 to 3, preferably 2 or 3, more preferably 3 for each (SiR ^a1 _k1 R ^b1 _l1 R ^c1 _m1 ) unit. In a preferred embodiment, k1 is 3.

In the above formulas (A1) and (A2), when R ^Si is a group represented by the formula (S3), preferably a hydroxyl group or a hydrolyzable group at the terminal portion of the formulas (A1) and (A2) There are at least two Si atoms to which are bonded.

In a preferred embodiment, the group represented by formula (S3) is —Z ¹ —SiR ²² _q1 R ²³ _r1 (wherein q1 is an integer of 1 to 3, preferably 2 or 3, more preferably 3 and r1 is an integer of 0 to 2.), —Z ^1′ —SiR ^22′ _q1′ R ^23′ _r1′ (wherein q1′ is an integer of 1 to 3, preferably 2 or 3, more preferably 3, and r1′ is an integer of 0 to 2), or —Z ^1″ —SiR ^22″ _q1″ R ^23″ _r1″ (wherein q1″ is 1 to is an integer of 3, preferably 2 or 3, more preferably 3, and r1″ is an integer of 0 to 2.) Z ¹ , Z ^1′ , Z ^1″ , R ²² , R ²³ , R ^22′ , R ^23′ , R ^22″ , and R ^23″ are as defined above.

In a preferred embodiment, in formula (S3), if R ^21′ is present, at least one, preferably all R ^21′ , q1″ is an integer from 1 to 3, preferably 2 or 3, or more 3 is preferred.

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

In a preferred embodiment, in formula (S3), if R ^a1 is present, at least one, preferably all R ^a1 , p1 is 0, q1 is an integer of 1 to 3, preferably 2 or 3, more preferably 3.

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

Each R ^d1 is independently -Z ² -CR ³¹ _p2 R ³² _q2 R ³³ _r2 .

Each ^Z2 is independently a single bond, an oxygen atom or a divalent organic group. In the structure described below as Z ² , the right side is bound to (CR ³¹ _p2 R ³² _q2 R ³³ _r2 ).

In preferred embodiments, Z ² is a divalent organic group.

The above Z ² is preferably a C _1-6 alkylene group, —(CH ₂ ) _z5 —O—(CH ₂ ) _z6 — (wherein z5 is an integer of 0 to 6, for example an integer of 1 to 6 and z6 is an integer of 0 to 6, such as an integer of 1 to 6) or -(CH ₂ ) _z7 -phenylene-(CH ₂ ) _z8 -, wherein z7 is an integer of 0 to 6, For example, an integer from 1 to 6, and z8 is an integer from 0 to 6, such as an integer from 1 to 6). Such C _1-6 alkylene groups may be linear or branched, but are preferably linear. These groups may be substituted with one or more substituents selected from, for example, fluorine atoms, C _1-6 alkyl groups, C _2-6 alkenyl groups, and C _2-6 alkynyl groups. is preferably unsubstituted.

In a preferred embodiment, Z ² is a C _1-6 alkylene group or -(CH ₂ ) _z7 -phenylene-(CH ₂ ) _z8 -, preferably -phenylene-(CH ₂ ) _z8 -. When ^Z2 is such a group, it can be more light-resistant, especially UV-resistant.

In another preferred embodiment, Z ² above is a C _1-3 alkylene group. In one aspect, Z ² can be -CH ₂ CH ₂ CH ₂ -. In another aspect, Z ² can be -CH ₂ CH ₂ -.

Each R ³¹ is independently -Z ^2' -CR ^32' _q2' R ^33' _r2' .

Each Z ^2' is independently a single bond, an oxygen atom or a divalent organic group. In the structure described as Z ^2′ below, the right side is bound to (CR ^32′ _q2′ R ^33′ _r2′ ).

The above Z ^2′ is preferably a C _1-6 alkylene group, —(CH ₂ ) _z5′ —O—(CH ₂ ) _z6′ — (wherein z5′ is an integer of 0 to 6, for example 1 to is an integer of 6 and z6' is an integer of 0 to 6, such as an integer of 1 to 6) or -(CH ₂ ) _z7' -phenylene-(CH ₂ ) _z8' - (wherein z7' is an integer from 0 to 6, such as an integer from 1 to 6, and z8' is an integer from 0 to 6, such as an integer from 1 to 6). Such C _1-6 alkylene groups may be linear or branched, but are preferably linear. These groups may be substituted with one or more substituents selected from, for example, fluorine atoms, C _1-6 alkyl groups, C _2-6 alkenyl groups, and C _2-6 alkynyl groups. is preferably unsubstituted.

In a preferred embodiment, Z ^2' is a C _1-6 alkylene group or -(CH ₂ ) _z7' -phenylene-(CH ₂ ) _z8' -, preferably -phenylene-(CH ₂ ) _z8' -. When Z ^2' is such a group, it can be more light-resistant, especially UV-resistant.

In another preferred embodiment, Z ^2′ above is a C _1-3 alkylene group. In one aspect, Z ^2' can be -CH ₂ CH ₂ CH ₂ -. In another aspect, Z ^2' can be -CH ₂ CH ₂ -.

Each R ^32′ is independently —Z ³ —SiR ³⁴ _n2 R ³⁵ _3-n2 .

Each ^Z3 above is independently a single bond, an oxygen atom or a divalent organic group. In the structure described below as Z ³ , the right side is bound to (SiR ³⁴ _n2 R ³⁵ _3-n2 ).

In one aspect, ^Z3 is an oxygen atom.

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

The above Z ³ is preferably a C _1-6 alkylene group, —(CH ₂ ) _z5″ —O—(CH ₂ ) _z6″ — (wherein z5″ is an integer of 0 to 6, such as 1 to 6 and z6″ is an integer of 0 to 6, such as an integer of 1 to 6) or —(CH ₂ ) _z7″ —phenylene-(CH ₂ ) _z8″ — (wherein z7″ is , an integer from 0 to 6, such as an integer from 1 to 6, and z8″ is an integer from 0 to 6, such as an integer from 1 to 6). Such C _1-6 alkylene groups may be linear or branched, but are preferably linear. These groups may be substituted with one or more substituents selected from, for example, fluorine atoms, C _1-6 alkyl groups, C _2-6 alkenyl groups, and C _2-6 alkynyl groups. is preferably unsubstituted.

In a preferred embodiment, Z ³ is a C _1-6 alkylene group or —(CH ₂ ) _z7″ -phenylene-(CH ₂ ) _z8″ -, preferably -phenylene-(CH ₂ ) _z8″ - ^. When is such a group, higher light resistance, especially UV resistance, can be obtained.

In another preferred embodiment, Z ³ above is a C _1-3 alkylene group. In one aspect, Z ³ can be -CH ₂ CH ₂ CH ₂ -. In another aspect, Z ³ can be -CH ₂ CH ₂ -.

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

Each R ³⁴ is preferably independently a hydrolyzable group.

R ³⁴ is preferably each independently -OR ^j , -OCOR ^j , -ON=CR ^j ₂ , -NR ^j ₂ , -NHR ^j , -NCO, or halogen (wherein R ^j represents a substituted or unsubstituted C _1-4 alkyl group), more preferably —OR ^j (ie, an alkoxy group). Examples of R ^j include unsubstituted alkyl groups such as methyl group, ethyl group, propyl group, isopropyl group, n-butyl group and isobutyl group; and substituted alkyl groups such as chloromethyl group. Among them, an alkyl group, particularly an unsubstituted alkyl group is preferable, and a methyl group or an ethyl group is more preferable. In one aspect, R ^j is a methyl group, and in another aspect R ^j is an ethyl group.

Each R ³⁵ is independently a hydrogen atom or a monovalent organic group. Such a monovalent organic group is a monovalent organic group excluding the above hydrolyzable group.

In 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.

In the above formula, n2 is an integer of 0 to 3 independently for each (SiR ³⁴ _n2 R ³⁵ _3-n2 ) unit. However, when R ^Si is a group represented by the formula (S4), the (SiR ³⁴ _n2 R ³⁵ _3-n2 ) unit in which n2 is 1 to 3 at the terminal portion of the formulas (A1) and (A2) there is at least one That is, not all n2 are 0 at the same time. In other words, at least one Si atom to which a hydroxyl group or a hydrolyzable group is bonded is present in the terminal portions of formulas (A1) and (A2).

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

Each R ^33' is independently a hydrogen atom, a hydroxyl group, or a monovalent organic group. Such a monovalent organic group is a monovalent organic group excluding the above hydrolyzable group.

In R ^33′ , the monovalent organic group is preferably a C _1-20 alkyl group or R ^41′ —(OR ^42′ ) _y1′ —O _y2′ — (wherein R ^41′ is a hydrogen atom or C _1-6 alkyl group, each R ^42′ is independently a C _1-6 alkylene group, y1′ is an integer of 1 to 30, and y2′ is 0 or 1.) It may be a group represented by

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

In another aspect, R ^41' is a C _1-6 alkyl group, preferably a C _1-3 alkyl group.

Each R ^42′ is independently a C _1-6 alkylene group, preferably a C _1-3 alkylene group, more preferably a C _2-3 alkylene group.

y1′ is an integer of 1 to 30, preferably an integer of 1 to 20, more preferably an integer of 1 to 10, even more preferably an integer of 2 to 10, such as an integer of 2 to 6, an integer of 2 to 4, It is an integer from 3 to 6, or an integer from 4 to 6.

In one aspect, R ^33' is a hydroxyl group.

In another aspect, R ^33' is a C _1-20 alkyl group, more preferably a C _1-6 alkyl group.

In another aspect, R ^33′ is R ^41′ —(OR ^42′ ) _y1′ —O _y2′ —.

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

q2' is preferably an integer of 1 to 3, more preferably 2 to 3, still more preferably 3, independently for each (CR ^32' _q2' R ^33' _r2' ) unit.

Each R ³² is independently -Z ³ -SiR ³⁴ _n2 R ³⁵ _3-n2 . Such —Z ³ —SiR ³⁴ _n2 R ³⁵ _3-n2 has the same meaning as described for R ^32′ above.

Each R ³³ is independently a hydrogen atom, a hydroxyl group, or a monovalent organic group. Such a monovalent organic group is a monovalent organic group excluding the above hydrolyzable group.

In R ³³ , the monovalent organic group is preferably a C _1-20 alkyl group or R ⁴¹ —(OR ⁴² ) _y1 —O _y2 — (wherein R ⁴¹ is a hydrogen atom or a C _1-6 alkyl group and each R ⁴² is independently a C _1-6 alkylene group, y1 is an integer of 1 to 30, and y2 is 0 or 1.).

In one aspect, R ⁴¹ is a hydrogen atom.

In another aspect, R ⁴¹ is a C _1-6 alkyl group, preferably a C _1-3 alkyl group.

Each R ⁴² is independently a C _1-6 alkylene group, preferably a C _1-3 alkylene group, more preferably a C _2-3 alkylene group.

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

In one aspect, R ³³ is a hydroxyl group.

In another aspect, R ³³ is a C _1-20 alkyl group, more preferably a C _1-6 alkyl group.

In another aspect, R ³³ is R ⁴¹ -(OR ⁴² ) _y1 -O _y2 -.

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

In one aspect, p2 is zero.

In one aspect, p2 may be an integer of 1 to 3, an integer of 2 to 3, or 3 independently for each (CR ³¹ _p2 R ³² _q2 R ³³ _r2 ) unit. In preferred embodiments, p2 is three.

In one aspect, q2 is an integer of 1 to 3, preferably an integer of 2 to 3, more preferably 3 for each (CR ³¹ _p2 R ³² _q2 R ³³ _r2 ) unit.

In one embodiment, p2 is 0 and q2 is independently an integer of 1 to 3, preferably an integer of 2 to 3, for each (CR ³¹ _p2 R ³² _q2 R ³³ _r2 ) unit. 3 is preferred.

Each R ^e1 is independently —Z ³ —SiR ³⁴ _n2 R ³⁵ _3-n2 . Such —Z ³ —SiR ³⁴ _n2 R ³⁵ _3-n2 has the same meaning as described for R ^32′ above.

Each R ^f1 is independently a hydrogen atom, a hydroxyl group, or a monovalent organic group. Such a monovalent organic group is a monovalent organic group excluding the above hydrolyzable group.

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

In one aspect, R ⁴³ is a hydrogen atom.

In another aspect, R ⁴³ is a C _1-6 alkyl group, preferably a C _1-3 alkyl group.

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

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

In one aspect, R ^f1 is a hydroxyl group.

In another aspect, R ^f1 is a C _1-20 alkyl group, more preferably a C _1-6 alkyl group.

In another aspect, R ^f1 is R ⁴³ —(OR ⁴⁴ ) _y3 —O _y4 —.

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

In formulas (A1) and (A2) above, when R ^Si is a group represented by formula (S4), preferably at the terminal portion of formulas (A1) and (A2), a hydroxyl group or a hydrolyzable group There are at least two Si atoms to which are bonded.

In one embodiment, when R ^Si is a group represented by formula (S4), n2 is 1 to 3, preferably 2 or 3, more preferably 3 (SiR ³⁴ _n2 R ³⁵ _3-n2 ) units is 2 or more, for example 2 to 27, preferably 2 to 9, more preferably 2 to 6, still more preferably 2 to 3, at each terminal portion of formula (A1) and formula (A2), Especially preferably, there are three.

In a preferred embodiment, in formula (S4), at least one, preferably all R ^{32 '} , if present, n2 is an integer from 1 to 3, preferably 2 or 3, more preferably is 3.

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

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

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

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

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

Each Z ⁴ above is independently a single bond, an oxygen atom or a divalent organic group. In the structure described below as Z ⁴ , the right side is bound to (SiR ¹¹ _n1 R ¹² _3-n1 ).

In one aspect, Z ⁴ is an oxygen atom.

In one aspect, Z ⁴ is a divalent organic group.

The above Z ⁴ is preferably a C _1-6 alkylene group, —(CH ₂ ) _z5″ —O—(CH ₂ ) _z6″ — (wherein z5″ is an integer of 0 to 6, such as 1 to 6 and z6″ is an integer of 0 to 6, such as an integer of 1 to 6) or —(CH ₂ ) _z7″ —phenylene-(CH ₂ ) _z8″ — (wherein z7″ is , an integer from 0 to 6, such as an integer from 1 to 6, and z8″ is an integer from 0 to 6, such as an integer from 1 to 6). Such C _1-6 alkylene groups may be linear or branched, but are preferably linear. These groups may be substituted with one or more substituents selected from, for example, fluorine atoms, C _1-6 alkyl groups, C _2-6 alkenyl groups, and C _2-6 alkynyl groups. is preferably unsubstituted.

In a preferred embodiment, Z ⁴ is a C _1-6 alkylene group or —(CH ₂ ) _z7″ -phenylene-(CH ₂ ) _z8″ -, preferably -phenylene-(CH ₂ ) _z8″ -. ^{Z 3} When is such a group, higher light resistance, especially UV resistance, can be obtained.

In another preferred embodiment, Z ⁴ above is a C _1-3 alkylene group. In one aspect, Z ⁴ can be -CH ₂ CH ₂ CH ₂ -. In another aspect, Z ⁴ can be -CH ₂ CH ₂ -.

In one aspect, R ^Si is a group represented by formula (S2), (S3), (S4) or (S5). These compounds can form a surface treatment layer having high surface lubricity.

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

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

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

In one aspect, R ^Si is a group represented by formula (S1).

In one aspect, R ^Si is a group represented by formula (S2).

In one aspect, R ^Si is a group represented by formula (S3).

In one aspect, R ^Si is a group represented by formula (S4).

In one aspect, R ^Si is a group represented by formula (S5).

In the above formulas (A1) and (A2), X ^A is the fluoropolyether portion (R ^F1 and R ^F2 ) that mainly provides water repellency and surface slipperiness, etc., and the portion that provides bonding ability to the substrate ( R ^Si ) and the linker. Therefore, ^XA may be a single bond or any group as long as the compounds represented by formulas (A1) and (A2) can exist stably.

In the above formula (A1), α1 is an integer of 1-9, and β1 is an integer of 1-9. These α1 and β1 can vary depending on the valence of ^XA . The sum of α1 and β1 is the same as the valence of ^XA . For example, when X ^A is a decavalent organic group, the sum of α1 and β1 is 10, for example, α1 is 9 and β1 is 1, α1 is 5 and β1 is 5, or α1 is 1 and β1 is 9. obtain. Also, α1 and β1 are 1 when X ^A is a divalent organic group.

In the above formula (A2), γ is an integer of 1-9. γ can vary depending on the valence of X ^A. That is, γ is the value obtained by subtracting 1 from the valence of ^XA .

Each X ^A is independently a single bond or a divalent to decavalent organic group.

In one aspect, X ^A does not contain a siloxane bond (--Si--O--Si--).

The divalent to decavalent organic group in X ^A above is preferably a divalent to octavalent organic group. In one aspect, such divalent to decavalent organic groups are preferably divalent to tetravalent organic groups, more preferably divalent organic groups. In another aspect, such divalent to decavalent organic groups are preferably trivalent to octavalent organic groups, more preferably trivalent to hexavalent organic groups.

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

In one aspect, X ^A is a single bond or a divalent organic group and γ is one.

In one embodiment, X ^A is a tri- to hexavalent organic group, α1 is 1 and β1 is 2-5.

In one embodiment, X ^A is a 3-6 valent organic group and γ is 2-5.

In one aspect, X ^A is a trivalent organic group, α1 is 1 and β1 is 2.

In one aspect, X ^A is a trivalent organic group and γ is two.

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

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

In another aspect, X ^A is a divalent organic group.

In one aspect, X ^A is, for example, a single bond or the following formula:
-(R ⁵¹ ) _p5 -(X ⁵¹ ) _q5 -
[In the formula:
R ⁵¹ represents a single bond, —(CH ₂ ) _s5 — or an o-, m- or p-phenylene group, preferably —(CH ₂ ) _s5 —,
s5 is an integer of 1 to 20, preferably an integer of 1 to 6, more preferably an integer of 1 to 3, even more preferably 1 or 2;
X ⁵¹ represents -(X ⁵² ) _l5 -,
Each X ⁵² is independently —O—, —S—, o-, m- or p-phenylene group, —C(O)O—, —Si(R ⁵³ ) ₂ —, —(Si(R ⁵³ ) ₂ O) _m5 -Si(R ⁵³ ) ₂ -, -CONR ⁵⁴ -, -O-CONR ⁵⁴ -, -NR ⁵⁴ - and -(CH ₂ ) _n5 - represents a group selected from the group consisting of
each R ⁵³ independently represents a phenyl group, a C _1-6 alkyl group or a C _{1-6 alkoxy group, preferably a phenyl group or a C 1-6 alkyl} group, more preferably a methyl group;
each R ⁵⁴ independently represents a hydrogen atom, a phenyl group or a C _1-6 alkyl group (preferably a methyl group);
m5 at each occurrence is independently an integer from 1 to 100, preferably an integer from 1 to 20;
n5 at each occurrence is independently an integer from 1 to 20, preferably an integer from 1 to 6, more preferably an integer from 1 to 3;
l5 is an integer of 1 to 10, preferably an integer of 1 to 5, more preferably an integer of 1 to 3;
p5 is 0 or 1;
q5 is 0 or 1;
wherein at least one of p5 and q5 is 1, and the order of existence of each repeating unit enclosed in parentheses with p5 or q5 is arbitrary;
The right side binds to R ^Si . ]
A divalent organic group represented by is mentioned. Here, X ^A (typically the hydrogen atom of X ^A ) is substituted with one or more substituents selected from a fluorine atom, a C _1-3 alkyl group and a C _1-3 fluoroalkyl group. may be In preferred embodiments, X ^A is not substituted by these groups.

In a preferred embodiment, each X ^A above is independently -(R ⁵¹ ) _p5 -(X ⁵¹ ) _q5 -R ⁵² -. R ⁵² represents a single bond, -(CH ₂ ) _t5 - or an o-, m- or p-phenylene group, preferably -(CH ₂ ) _t5 -. t5 is an integer of 1-20, preferably an integer of 2-6, more preferably an integer of 2-3. wherein R ⁵² (typically the hydrogen atom of R ⁵² ) is substituted with one or more substituents selected from a fluorine atom, a C _1-3 alkyl group and a C _1-3 fluoroalkyl group; may be In preferred embodiments, R ⁵⁶ is not substituted by these groups.

Preferably, the above X ^A are each independently
single bond,
a C _1-20 alkylene group,
—R ⁵¹ —X ⁵³ —R ⁵² —, or —X ⁵⁴ —R ⁵ —
[Wherein, R ⁵¹ and R ⁵² have the same meanings as above,
^X53 is
-O-,
-S-,
-C(O)O-,
-CONR ^54- ,
-O-CONR ^54- ,
—Si(R ⁵³ ) ₂ —,
—(Si(R ⁵³ ) ₂ O) _m5 —Si(R ⁵³ ) ₂ —,
—O—(CH ₂ ) _u5 —(Si(R ⁵³ ) ₂ O) _m5 —Si(R ⁵³ ) ₂ —,
—O—(CH ₂ ) _u5 —Si(R ⁵³ ) ₂ —O—Si(R ⁵³ ) ₂ —CH ₂ CH ₂ —Si(R ⁵³ ) ₂ —O—Si(R ⁵³ ) ₂ —,
—O—(CH ₂ ) _u5 —Si(OCH ₃ ) ₂ OSi(OCH ₃ ) ₂ —,
—CONR ⁵⁴ —(CH ₂ ) _u5 —(Si(R ⁵³ ) ₂ O) _m5 —Si(R ⁵³ ) ₂ —,
-CONR ⁵⁴ -(CH ₂ ) _u5 -N(R ⁵⁴ )-, or -CONR ⁵⁴ -(o-, m- or p-phenylene)-Si(R ⁵³ ) ₂ -
(Wherein, R ⁵³ , R ⁵⁴ and m5 have the same meanings as above,
u5 is an integer of 1-20, preferably an integer of 2-6, more preferably an integer of 2-3. ),
^X54 is
-S-,
-C(O)O-,
-CONR ^54- ,
-O-CONR ^54- ,
—CONR ⁵⁴ —(CH ₂ ) _u5 —(Si(R ⁵⁴ ) ₂ O) _m5 —Si(R ⁵⁴ ) ₂ —,
-CONR ⁵⁴ -(CH ₂ ) _u5 -N(R ⁵⁴ )-, or -CONR ⁵⁴ -(o-, m- or p-phenylene)-Si(R ⁵⁴ ) ₂ -
(In the formula, each symbol has the same meaning as above.)
represents ]
can be

More preferably, the above X ^A are each independently
single bond,
a C _1-20 alkylene group,
—(CH ₂ ) _s5 —X ⁵³ —,
—(CH ₂ ) _s5 —X ⁵³ —(CH ₂ ) _t5 —
-X ⁵⁴ -, or -X ⁵⁴ -(CH ₂ ) _t5 -
[In the formula, X ⁵³ , X ⁵⁴ , s5 and t5 have the same meanings as above. ]
is.

More preferably, the above X ^A are each independently
single bond,
a C _1-20 alkylene group,
—(CH ₂ ) _s5 —X ⁵³ —(CH ₂ ) _t5 —, or —X ⁵⁴ —(CH ₂ ) _t5 —
[In the formula, each symbol has the same meaning as described above. ]
can be

In a preferred embodiment, each of the above X ^A is independently
a single bond C _1-20 alkylene group,
—(CH ₂ ) _s5 —X ⁵³ —, or —(CH ₂ ) _s5 —X ⁵³ —(CH ₂ ) _t5 —
[In the formula,
X ⁵³ is -O-, -CONR ⁵⁴ -, or -O-CONR ⁵⁴ -;
each R ⁵⁴ independently represents a hydrogen atom, a phenyl group or a C _1-6 alkyl group;
s5 is an integer from 1 to 20,
t5 is an integer from 1 to 20; ]
can be

In a preferred embodiment, each of the above X ^A is independently
—(CH ₂ ) _s5 —O—(CH ₂ ) _t5 —
^-CONR54- ( _CH2 ) _t5-
[In the formula,
each R ⁵⁴ independently represents a hydrogen atom, a phenyl group or a C _1-6 alkyl group;
s5 is an integer from 1 to 20,
t5 is an integer from 1 to 20; ]
can be

In one aspect, each of the X ^A is independently
single bond,
a C _1-20 alkylene group,
—(CH ₂ ) _s5 —O—(CH ₂ ) _t5 —,
—(CH ₂ ) _s5 —(Si(R ⁵³ ) ₂ O) _m5 —Si(R ⁵³ ) ₂ —(CH ₂ ) _t5 —,
—(CH ₂ ) _s5 —O—(CH ₂ ) _u5 —(Si(R ⁵³ ) ₂ O) _m5 —Si(R ⁵³ ) ₂ —(CH ₂ ) _t5 — or —(CH ₂ ) _s5 —O— (CH ₂ ) _t5 —Si(R ⁵³ ) ₂ —(CH ₂ ) _u5 —Si(R ⁵³ ) ₂ —(C _v H _2v )—
[In the formula, R ⁵³ , m5, s5, t5 and u5 have the same meanings as above, and v5 is an integer of 1 to 20, preferably an integer of 2 to 6, more preferably an integer of 2 to 3. ]
is.

In the above formula, -(C _v H _2v )- may be linear or branched, for example -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ -, -CH (CH ₃ )—, —CH(CH ₃ )CH ₂ —.

X ^A is each independently one or more 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). It may be substituted by a substituent. In one aspect, X ^A is unsubstituted.

In one aspect, each X ^A can independently be other than a —O—C _1-6 alkylene group.

In another aspect, X ^A includes, for example, the following groups:
[wherein each R ⁴¹ is independently a hydrogen atom, a phenyl group, an alkyl group having 1 to 6 carbon atoms, or a C _1-6 alkoxy group, preferably a methyl group;
D is
—CH ₂ O(CH ₂ ) ₂ —,
—CH ₂ O(CH ₂ ) ₃ —,
—CF ₂ O(CH ₂ ) ₃ —,
-(CH ₂ ) ₂ -,
-(CH ₂ ) ₃ -,
-(CH ₂ ) ₄ -,
—CONH—(CH ₂ ) ₃ —,
-CON(CH ₃ )-(CH ₂ ) ₃ -,
-CON(Ph)-(CH ₂ ) ₃ -, where Ph means phenyl, and
(In the formula, each R ⁴² independently represents a hydrogen atom, a C _1-6 alkyl group or a C _1-6 alkoxy group, preferably a methyl group or a methoxy group, more preferably a methyl group.)
is a group selected from
E is -(CH ₂ ) _n - (n is an integer of 2 to 6),
D is attached to R ^F1 or R ^F2 of the molecular backbone and E is attached to R ^Si . ]

Specific examples of X ^A above include:
single bond,
—CH ₂ OCH ₂ —,
—CH ₂ O(CH ₂ ) ₂ —,
—CH ₂ O(CH ₂ ) ₃ —,
—CH ₂ O(CH ₂ ) ₄ —,
—CH ₂ O(CH ₂ ) ₅ —,
—CH ₂ O(CH ₂ ) ₆ —,
—CH ₂ O(CH ₂ ) ₃ Si(CH ₃ ) ₂ OSi(CH ₃ ) ₂ (CH ₂ ) ₂ —,
—CH ₂ O(CH ₂ ) ₃ Si(CH ₃ ) ₂ OSi(CH ₃ ) ₂ OSi(CH ₃ ) ₂ (CH ₂ ) ₂ —,
—CH ₂ O(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₂ Si(CH ₃ ) ₂ (CH ₂ ) ₂ —,
—CH ₂ O(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₃ Si(CH ₃ ) ₂ (CH ₂ ) ₂ —,
—CH ₂ O(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₁₀ Si(CH ₃ ) ₂ (CH ₂ ) ₂ —,
—CH ₂ O(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₂₀ Si(CH ₃ ) ₂ (CH ₂ ) ₂ —,
—CH ₂ OCF ₂ CHFOCF ₂ —,
—CH ₂ OCF ₂ CHFOCF ₂ CF ₂ —,
_{-CH2OCF2CHFOCF2CF2CF2- , _ _ _
-CH2OCH2CF2CF2OCF2- , _ _ _
-CH2OCH2CF2CF2OCF2CF2- , _ _ _ _
-CH2OCH2CF2CF2OCF2CF2CF2- , _ _ _ _ _
-CH2OCH2CF2CF2OCF ( CF3 ) CF2OCF2- , _
-CH2OCH2CF2CF2OCF ( CF3 ) CF2OCF2CF2- , _ _
-CH2OCH2CF2CF2OCF ( CF3 ) CF2OCF2CF2CF2- , _ _ _
-CH2OCH2CHFCF2OCF2- , _ _
-CH2OCH2CHFCF2OCF2CF2- , _ _ _
-CH2OCH2CHFCF2OCF2CF2CF2- , _ _ _ _
-CH2OCH2CHFCF2OCF ( CF3 ) CF2OCF2- ,
-CH2OCH2CHFCF2OCF ( CF3 ) CF2OCF2CF2- , _
-CH2OCH2CHFCF2OCF ( CF3 ) CF2OCF2CF2CF2- , _ _
-CH2OCF2CHFOCF2CF2CF2 -} C ₍ O)NH _{- CH2- ,
-CH2OCH2} ( _{CH2 ) 7CH2Si} ( _OCH3 ) _2OSi ( _OCH3 ) _{2 ( CH2} ) _2Si ( _OCH3 ) _2OSi ( _OCH3 ) ₂ ( _CH2 ) _2- ,
_{-CH2OCH2CH2CH2Si} ( _{OCH3 ) 2OSi ( OCH3} ) _{2 ( CH2} ) _3- ,
_{-CH2OCH2CH2CH2Si ( OCH2CH3} ) _{2OSi ( OCH2CH3 ) 2} ( _{CH2 ) 3- ,
-CH2OCH2CH2CH2Si} ( _{OCH3 ) 2OSi ( OCH3} ) _{2 ( CH2} ) _2- ,
_{-CH2OCH2CH2CH2Si ( OCH2CH3 ) 2OSi} ( _{OCH2CH3 ) 2} ( _{CH2 ) 2- ,}
—(CH ₂ ) ₂ —Si(CH ₃ ) ₂ —(CH ₂ ) ₂ —,
_-CH2- ,
-(CH ₂ ) ₂ -,
-(CH ₂ ) ₃ -,
-(CH ₂ ) ₄ -,
-(CH ₂ ) ₅ -,
-( _CH2 ) _6- ,
-CO-,
-CONH-,
-CONH- _CH2- ,
—CONH—(CH ₂ ) ₂ —,
—CONH—(CH ₂ ) ₃ —,
—CONH—(CH ₂ ) ₄ —,
—CONH—(CH ₂ ) ₅ —,
—CONH—(CH ₂ ) ₆ —,
-CON( _CH3 ) _-CH2- ,
-CON(CH ₃ )-(CH ₂ ) ₂ -,
-CON(CH ₃ )-(CH ₂ ) ₃ -,
-CON(CH ₃ )-(CH ₂ ) ₄ -,
-CON(CH ₃ )-(CH ₂ ) ₅ -,
-CON(CH ₃ )-(CH ₂ ) ₆ -,
-CON(Ph)-CH ₂ - (where Ph means phenyl),
-CON(Ph)-(CH ₂ ) ₂ - (wherein Ph means phenyl),
-CON(Ph)-(CH ₂ ) ₃ - (wherein Ph means phenyl),
-CON(Ph)-(CH ₂ ) ₄ - (wherein Ph means phenyl),
-CON(Ph)-(CH ₂ ) ₅ - (where Ph means phenyl),
-CON(Ph)-(CH ₂ ) ₆ - (wherein Ph means phenyl),
-CONH-(CH ₂ ) ₂ NH(CH ₂ ) ₃ -,
-CONH-( _CH2 ) _6NH ( _CH2 ) _3- ,
—CH ₂ O—CONH—(CH ₂ ) ₃ —,
—CH ₂ O—CONH—(CH ₂ ) ₆ —,
-S-(CH ₂ ) ₃ -,
-(CH ₂ ) ₂ S(CH ₂ ) ₃ -,
—CONH—(CH ₂ ) ₃ Si(CH ₃ ) ₂ OSi(CH ₃ ) ₂ (CH ₂ ) ₂ —,
—CONH—(CH ₂ ) ₃ Si(CH ₃ ) ₂ OSi(CH ₃ ) ₂ OSi(CH ₃ ) ₂ (CH ₂ ) ₂ —,
—CONH—(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₂ Si(CH ₃ ) ₂ (CH ₂ ) ₂ —,
—CONH—(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₃ Si(CH ₃ ) ₂ (CH ₂ ) ₂ —,
—CONH—(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₁₀ Si(CH ₃ ) ₂ (CH ₂ ) ₂ —,
—CONH—(CH ₂ ) ₃ Si(CH ₃ ) ₂ O(Si(CH ₃ ) ₂ O) ₂₀ Si(CH ₃ ) ₂ (CH ₂ ) ₂ —,
—C(O)O—(CH ₂ ) ₃ —,
—C(O)O—(CH ₂ ) ₆ —,
—CH ₂ —O—(CH ₂ ) ₃ —Si(CH ₃ ) ₂ —(CH ₂ ) ₂ —Si(CH ₃ ) ₂ —(CH ₂ ) ₂ —,
—CH ₂ —O—(CH ₂ ) ₃ —Si(CH ₃ ) ₂ —(CH ₂ ) ₂ —Si(CH ₃ ) ₂ —CH(CH ₃ )—,
—CH ₂ —O—(CH ₂ ) ₃ —Si(CH ₃ ) ₂ —(CH ₂ ) ₂ —Si(CH ₃ ) ₂ —(CH ₂ ) ₃ —,
—CH ₂ —O—(CH ₂ ) ₃ —Si(CH ₃ ) ₂ —(CH ₂ ) ₂ —Si(CH ₃ ) ₂ —CH(CH ₃ )—CH ₂ —,
_-OCH2- ,
—O(CH ₂ ) ₃ —,
_-OCFHCF2- ,

etc.

In yet another aspect, each X ^A is independently a group of the formula: -(R ¹⁶ ) _x1 -(CFR ¹⁷ ) _y1 -(CH ₂ ) _z1 -. In the formula, x1, y1 and z1 are each independently an integer of 0 to 10, the sum of x1, y1 and z1 is 1 or more, and the order of existence of each parenthesized repeating unit is is optional in

In the formula above, each R ¹⁶ is independently an oxygen atom, phenylene, carbazolylene, —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.

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

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

In addition, X ^A is bonded to R ^F1 or R ^F2 on the left side of each formula, and is bonded to R ^Si on the right side.

In yet another aspect, examples of X ^A include the groups:
[In the formula,
each R ⁴¹ is independently a hydrogen atom, a phenyl group, an alkyl group having 1 to 6 carbon atoms, or a C _1-6 alkoxy group, preferably a methyl group;
In each X ^A group any one of the T's are attached to R ^F1 or R ^F2 of the molecular backbone:
—CH ₂ O(CH ₂ ) ₂ —,
—CH ₂ O(CH ₂ ) ₃ —,
—CF ₂ O(CH ₂ ) ₃ —,
-(CH ₂ ) ₂ -,
-(CH ₂ ) ₃ -,
-(CH ₂ ) ₄ -,
—CONH—(CH ₂ ) ₃ —,
-CON(CH ₃ )-(CH ₂ ) ₃ -,
-CON(Ph)-(CH ₂ ) ₃ - (where Ph means phenyl), or
[In the formula, each R ⁴² independently represents a hydrogen atom, a C _1-6 alkyl group or a C _1-6 alkoxy group, preferably a methyl group or a methoxy group, more preferably a methyl group. ]
and some of the other T's are attached to R ^Si of the molecular backbone and, if present, the remaining T's are each independently a methyl group, a phenyl group, a C _1-6 alkoxy group or a radical scavenging group group or UV-absorbing group.

The radical scavenging group is not particularly limited as long as it can scavenge radicals generated by light irradiation. , hindered amines, hindered phenols, or triazines.

The ultraviolet absorbing group is not particularly limited as long as it can absorb ultraviolet rays. Examples include residues of oxanilides, benzoxazinones, and benzoxazoles.

In a preferred embodiment, preferred radical-scavenging groups or UV-absorbing groups include:

is mentioned.

In this aspect, each X ^A can independently be a trivalent to decavalent organic group.

In yet another aspect, examples of X ^A include the groups:
[wherein R ²⁵ , R ²⁶ and R ²⁷ are each independently a divalent to hexavalent organic group,
R ²⁵ is bound to at least one R ^{2 F1} and R ²⁶ and R ²⁷ are each bound to at least one R 2 ^Si . ]

In one aspect, R ²⁵ is a single bond, a C _1-20 alkylene group, a C _3-20 cycloalkylene group, a C _5-20 arylene group, -R ⁵⁷ -X ⁵⁸ -R ⁵⁹ -, -X ⁵⁸ -R ⁵⁹ -, or -R ⁵⁷ -X ⁵⁸ -. R ⁵⁷ and R ⁵⁹ above are each independently a single bond, a C _1-20 alkylene group, a C _3-20 cycloalkylene group, or a C _5-20 arylene group. X ⁵⁸ above is -O-, -S-, -CO-, -O-CO- or -COO-.

In one aspect, R ²⁶ and R ²⁷ are each independently a hydrocarbon or a group having at least one atom selected from N, O and S in the end or main chain of the hydrocarbon, preferably includes a C _1-6 alkyl group, —R ³⁶ —R ³⁷ —R ³⁶ —, —R ³⁶ —CHR ³⁸ ₂ —, and the like. Here, each R ³⁶ 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. R ³⁷ is N, O or S, preferably N or O. R ³⁸ is -R ⁴⁵ -R ⁴⁶ -R ⁴⁵ -, -R ⁴⁶ -R ⁴⁵ - or -R ⁴⁵ -R ⁴⁶ -. Here, each R ⁴⁵ is independently an alkyl group having 1 to 6 carbon atoms. R ⁴⁶ is N, O or S, preferably O.

In this aspect, each X ^A can independently be a trivalent to decavalent organic group.

［式中、Ｘ^ａは、単結合または２価の有機基である。］
で表される基である。 In yet another aspect, X ^A is:

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

X ^a above is a single bond or a divalent linking group that directly bonds to the isocyanuric ring. X ^a is preferably a single bond, an alkylene group, or a divalent group containing at least one bond selected from the group consisting of an ether bond, an ester bond, an amide bond and a sulfide bond, and An alkylene group of 1 to 10, or a divalent hydrocarbon group of 1 to 10 carbon atoms containing at least one bond selected from the group consisting of an ether bond, an ester bond, an amide bond and a sulfide bond is more preferred.

X ^a is represented by the following formula:
-(CX ¹²¹ X ¹²² ) _x1 -(X ^a1 ) _y1 -(CX ¹²³ X ¹²⁴ ) _z1 -
(Wherein, X ¹²¹ to X ¹²⁴ are each independently H, F, OH, or —OSi(OR ¹²¹ ) ₃ (Wherein, three R ¹²¹ each independently have 1 to is an alkyl group of 4.),
X ^a1 above 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 attached to CX ¹²¹ X ¹²² ),
x1 is an integer of 0-10, y1 is 0 or 1, and z1 is an integer of 1-10. )
A group represented by is more preferable.

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

As the above X ^a , the following formula:
-(CF ₂ ) _m11 -(CH ₂ ) _m12 -O-(CH ₂ ) _m13 -
(Wherein, m11 is an integer of 1 to 3, m12 is an integer of 1 to 3, and m13 is an integer of 1 to 3.)
A group represented by
-(CF ₂ ) _m14 -(CH ₂ ) _m15 -O-CH ₂ CH(OH)-(CH ₂ ) _m16 -
(Wherein, m14 is an integer of 1 to 3, m15 is an integer of 1 to 3, and m16 is an integer of 1 to 3.)
A group represented by
-(CF ₂ ) _m17 -(CH ₂ ) _m18 -
(Wherein, m17 is an integer of 1 to 3, and m18 is an integer of 1 to 3.)
A group represented by
-(CF ₂ ) _m19 -(CH ₂ ) _m20 -O-CH ₂ CH(OSi(OCH ₃ ) ₃ )-(CH ₂ ) _m21 -
(Wherein, m19 is an integer of 1 to 3, m20 is an integer of 1 to 3, and m21 is an integer of 1 to 3.)
or a group represented by
-( _CH2 ) _m22-
(Wherein, m22 is an integer of 1 to 3.)
A group represented by is particularly preferred.

The above X ^a is not particularly limited, but specifically,
—CH ₂ —, —C ₂ H ₄ —, —C ₃ H ₆ —, —C ₄ H ₈ —, —C ₄ H ₈ —O—CH ₂ —, —CO—O—CH ₂ —CH(OH) —CH ₂ —, —(CF ₂ ) _n5 — (n5 is an integer of 0 to 4), —(CF ₂ ) _n5 —(CH ₂ ) _m5 — (n5 and m5 are each independently 0 4), —CF ₂ CF ₂ CH ₂ OCH ₂ CH(OH)CH ₂ —, —CF ₂ CF ₂ CH 2 _{OCH 2} CH(OSi(OCH ₃ ) ₃ )CH ₂ —
etc.

In this aspect, each X ^A can independently be a divalent or trivalent organic group.

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

The fluoropolyether group-containing silane compound represented by formula (A1) or formula (A2) is not particularly limited, but may have an average molecular weight of 5×10 ² to 1×10 ⁵ . Among these ranges, from the viewpoint of friction durability, it is preferable to have an average molecular weight of 2,000 to 32,000, more preferably 2,500 to 12,000. The "average molecular weight" refers to the number average molecular weight, and the "average molecular weight" is a value measured by ¹⁹ F-NMR.

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

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

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

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

Component (A) may be a mixture of a compound represented by formula (A1) or formula (A2) and a compound obtained by partially condensing these compounds.

The compound represented by formula (A1) or (A2) above can be obtained, for example, by the method described in Patent Document 1 above.

(Polyoxyalkylene group-containing compound)
The polyoxyalkylene group-containing compound is a compound containing a polyoxyalkylene group.

The surface treatment agent of the present disclosure further improves friction durability by containing the polyoxyalkylene group-containing compound of component (B) in addition to the fluoropolyether group-containing silane compound of component (A).

［式中：
Ｒ^Ｅは、それぞれ独立して、１～１０価のポリオキシアルキレン基であり；
Ｘ^Ｂは、それぞれ独立して、単結合又は２～１０価の有機基であり；
Ｒ^Ｔは、それぞれ独立して、水素原子、Ｃ_１－６アルキル基、－ＯＲ^６５、－ＳＲ^６５、－ＮＲ^６５ _２、－ＣＯＯＲ^６５、－ＣＯＲ^６５、－ＯＣＯＲ^６５、－ＣＯＮＲ^６５、－ＮＲ^６５ＣＯＲ^６５、Ｃ_３－１６シクロアルキル基、Ｃ_５－１６アリール基、又は、水酸基、加水分解性基、水素原子もしくは１価の有機基が結合したＳｉ原子を含む１価の基であり；
Ｒ^６５は、それぞれ独立して、水素原子又はＣ_１－６アルキル基であり；
δ１は、１～１０の整数であり；
δ２は、それぞれ独立して、１～９の整数である。］
で表される化合物である。 In one aspect, the polyoxyalkylene group-containing compound has the following formula (B):

[In the formula:
each R ^E is independently a monovalent to decavalent polyoxyalkylene group;
each X ^B is independently a single bond or a divalent to decavalent organic group;
R ^T is each independently a hydrogen atom, a C _1-6 alkyl group, —OR ⁶⁵ , —SR ⁶⁵ , —NR ⁶⁵ ₂ , —COOR ⁶⁵ , —COR ⁶⁵ , —OCOR ⁶⁵ , —CONR ⁶⁵ , —NR ⁶⁵ COR ⁶⁵ , a C _3-16 cycloalkyl group, a C _5-16 aryl group, or a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is bonded;
each R ⁶⁵ is independently a hydrogen atom or a C _1-6 alkyl group;
δ1 is an integer from 1 to 10;
δ2 is each independently an integer of 1-9. ]
It is a compound represented by

In formula (B), R ^E is a monovalent to decavalent polyoxyalkylene group.

R ^E preferably has the following formula:
R ⁶¹ -R ^E3 -O _q2 -,
-R ⁶² _p2 -R ^E3 -O _q2 -
X ^E (R ⁶² _p2 -R ^E3 -O _q2 ) _r2
[In the formula:
each R ^E3 is independently a divalent polyoxyalkylene group;
R ⁶¹ is a hydrogen atom or a C _1-6 alkyl group;
R ⁶² is a C _1-6 alkylene group;
X ^E is a 3- to 10-valent group;
p2 is 0 or 1;
each q2 is independently 0 or 1;
r2 is an integer from 3 to 10; ]
is a group represented by

The above R ⁶¹ —R ^E3 —O _q2 — is a monovalent polyoxyalkylene group, —R ⁶² _p2 —R ^E3 —O _q2 — is a divalent polyoxyalkylene group, and X ^E (R ⁶² _p2 — R ^E3 —O _q2 ) _r2 is a trivalent to decavalent polyoxyalkylene group.

In the above formula, R ⁶¹ is a hydrogen atom or a C _1-6 alkyl group.

The C _1-6 alkyl group in R ⁶¹ may be linear or branched. In one aspect, the C _1-6 alkyl group is straight chain. In another aspect, the C _1-6 alkyl group is branched.

The C _1-6 alkyl group is preferably a C _1-3 alkyl group.

In the above formula, R ⁶² is a C _1-6 alkylene group.

The C _1-6 alkylene group in R ⁶² may be linear or branched. In one aspect, a C _1-6 alkylene group is straight chain. In another aspect, the C _1-6 alkylene group is branched.

The C _1-6 alkylene group is preferably a C _1-3 alkylene group.

In the above formula, each R ^E3 is independently a divalent polyoxyalkylene group.

R ^E3 is preferably each independently of the formula:
- (OR ⁶³ ) _a1 -
[In the formula,
R ⁶³ is a C _1-6 alkylene group,
a1 is an integer from 2 to 30; ]
is a group represented by

The C _1-6 alkylene group in R ⁶³ may be linear or branched. In one aspect, a C _1-6 alkylene group is straight chain. In another aspect, the C _1-6 alkylene group is branched.

The C _1-6 alkylene group is preferably a C _1-3 alkylene group, more preferably a C _2-3 alkylene group.

a1 may be an integer of 2-30, preferably an integer of 6-30, such as an integer of 6-20, 10-30, or 10-20.

In the above formula, p2 is 0 or 1. In one aspect, p2 is zero. In another aspect, p2 is 1.

In the above formula, each q2 is 0 or 1 independently. In one aspect, q2 is zero. In another aspect q2 is one.

In the above formula, X ^E is a 3- to 10-valent group, preferably a 3- to 6-valent group.

The trivalent to decavalent group is preferably a trivalent to decavalent hydrocarbon group, more preferably a trivalent to hexavalent hydrocarbon group.

^XE is preferably _a trivalent group such _as CH, _CH2CHCH2 , _CH3CH2C ( _CH2 ) ₃ , a tetravalent group such as C( _CH2 ) ₄ , _CH2 [CH] ₄ It can be a hexavalent group such as _CH2 .

In the above formula, r2 is equal to the valence of X ^E and is an integer of 3-10, preferably an integer of 3-6, more preferably 3 or 4, eg 3.

In formula (B), δ1 is equal to the valence of R ^E and is an integer of 1-10. R ^E is preferably an integer of 1-6, more preferably an integer of 1-4, even more preferably an integer of 1-3.

In formula (B) above, each R ^T is independently a hydrogen atom, a C _1-6 alkyl group, —OR ⁶⁵ , —SR ⁶⁵ , —NR ⁶⁵ ₂ , —COOR ⁶⁵ , —COR ⁶⁵ , —OCOR ⁶⁵ , —CONR ⁶⁵ , —NR ⁶⁵ COR ⁶⁵ , a C _3-16 cycloalkyl group, a C _5-16 aryl group, or a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is bonded It is a monovalent group.

Each R ⁶⁵ is independently a hydrogen atom or a C _1-6 alkyl group. A C _1-6 alkyl group may be straight or branched. The C _1-6 alkyl group is preferably a C _1-3 alkyl group, more preferably a methyl group.

In one aspect, R ⁶⁵ is a hydrogen atom.

In another aspect, R ⁶⁵ is a C _1-6 alkyl group.

In one aspect, each R ^T is independently a hydrogen atom, a C _1-6 alkyl group, a C _3-16 cycloalkyl group, or a C _5-16 aryl group, preferably a hydrogen atom, or a C _1-6 is an alkyl group. In one aspect, R ^T is a hydrogen atom. In another aspect, each R ^T is independently a C _1-6 alkyl group, a C _3-16 cycloalkyl group, or a C _5-16 aryl group, preferably a C _1-6 alkyl group.

In another embodiment, each R ^T is independently -OR ⁶⁵ , -SR ⁶⁵ , -NR ⁶⁵ ₂ , -COOR ⁶⁵ , -COR ⁶⁵ , -OCOR ⁶⁵ , -CONR ⁶⁵ , -NR ⁶⁵ COR ⁶⁵ , or It is a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is bonded.

In another embodiment, each R ^T is independently -OR ⁶⁵ , -SR ⁶⁵ , -NR ⁶⁵ ₂ , -COOR ⁶⁵ , -COR ⁶⁵ , -OCOR ⁶⁵ , -CONR ⁶⁵ , -NR ⁶⁵ COR ⁶⁵ , or It is a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is bonded. In another embodiment, each R ^T is independently -OR ⁶⁵ , -SR ⁶⁵ , -NR ⁶⁵ ₂ , -COOR ⁶⁵ , -COR ⁶⁵ , -OCOR ⁶⁵ , -CONR ⁶⁵ , or -NR ⁶⁵ COR ⁶⁵ be. In another embodiment, each R 1 ^T is independently a monovalent group comprising a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is attached.

In one aspect, each R ^T is independently a hydrogen atom or a hydroxyl group.

In one aspect, a hydroxyl group, a hydrolyzable group, a monovalent group containing a Si atom to which a hydrogen atom or a monovalent organic group is bonded is each independently a hydroxyl group or a Si atom to which a hydrolyzable group is bonded is a monovalent group containing

In another embodiment, a hydroxyl group, a hydrolyzable group, a monovalent group containing a Si atom to which a hydrogen atom or a monovalent organic group is bonded is each independently a Si to which a hydrogen atom or a monovalent organic group is bonded. It is a monovalent group containing atoms.

In one aspect, the monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is bonded is a group represented by —SiR ⁷¹ _n3 R ⁷² _3-n3 .

In the formula above, each R ⁷¹ is independently a hydroxyl group or a hydrolyzable group.

Each R ⁷¹ is preferably independently a hydrolyzable group.

R ⁷¹ is preferably each independently -OR ^j , -OCOR ^j , -ON=CR ^j ₂ , -NR ^j ₂ , -NHR ^j , -NCO, or halogen (wherein R ^j represents a substituted or unsubstituted C _1-4 alkyl group), more preferably —OR ^j (ie, an alkoxy group). Examples of R ^j include unsubstituted alkyl groups such as methyl group, ethyl group, propyl group, isopropyl group, n-butyl group and isobutyl group; and substituted alkyl groups such as chloromethyl group. Among them, an alkyl group, particularly an unsubstituted alkyl group is preferable, and a methyl group or an ethyl group is more preferable. In one aspect, R ^j is a methyl group, and in another aspect R ^j is an ethyl group.

In the formula above, each R ⁷² is independently a hydrogen atom or a monovalent organic group. Such a monovalent organic group is a monovalent organic group excluding the above hydrolyzable group.

In R ⁷² , 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.

In the above formula, n3 is an integer of 0-3, preferably an integer of 1-3, more preferably 2 or 3, and still more preferably 3.

In formula (B), X ^B is understood as a linker connecting the polyoxyalkylene portion (R ^E and R ^E2 ) and the terminal portion (R ^T ). Therefore, X ^B may be a single bond or any group as long as the compound represented by formula (B) can exist stably.

In formula (B), δ2 is an integer of 1-9. δ2 can vary depending on the valence of ^XB . That is, δ2 is the value obtained by subtracting 1 from the valence of ^XB .

Each X ^B is independently a single bond or a divalent to decavalent organic group.

The divalent to decavalent organic group in X ^B is preferably a divalent to octavalent organic group. In one aspect, such divalent to decavalent organic groups are preferably divalent to tetravalent organic groups, more preferably divalent organic groups. In another aspect, such divalent to decavalent organic groups are preferably trivalent to octavalent organic groups, more preferably trivalent to hexavalent organic groups.

In one aspect, X ^B is a single bond or a divalent organic group and δ2 is 1.

In one embodiment, X ^B is a tri- to hexavalent organic group and δ2 is 2-5.

In one aspect, X ^B is a trivalent organic group and δ2 is two.

In one aspect, X ^B is a single bond.

In another aspect, X ^B is a divalent organic group.

In one aspect, X ^B may contain either or both heteroatoms and cyclic structures.

In one aspect, X ^B does not contain a siloxane bond (--Si--O--Si--).

In one aspect, X ^B is, for example, a single bond or of the formula:
-(R ⁵¹ ) _p5 -(X ⁵¹ ) _q5 -
[In the formula:
R ⁵¹ represents a single bond, —(CH ₂ ) _s5 — or an o-, m- or p-phenylene group, preferably —(CH ₂ ) _s5 —,
s5 is an integer of 1 to 20, preferably an integer of 1 to 6, more preferably an integer of 1 to 3, even more preferably 1 or 2;
X ⁵¹ represents -(X ⁵² ) _l5 -,
Each X ⁵² is independently —O—, —S—, o-, m- or p-phenylene group, —C(O)O—, —Si(R ⁵³ ) ₂ —, —(Si(R ⁵³ ) ₂ O) _m5 -Si(R ⁵³ ) ₂ -, -CONR ⁵⁴ -, -O-CONR ⁵⁴ -, -NR ⁵⁴ - and -(CH ₂ ) _n5 - represents a group selected from the group consisting of
each R ⁵³ independently represents a phenyl group, a C _1-6 alkyl group or a C _{1-6 alkoxy group, preferably a phenyl group or a C 1-6 alkyl} group, more preferably a methyl group;
each R ⁵⁴ independently represents a hydrogen atom, a phenyl group or a C _1-6 alkyl group (preferably a methyl group);
m5 at each occurrence is independently an integer from 1 to 100, preferably an integer from 1 to 20;
n5 at each occurrence is independently an integer from 1 to 20, preferably an integer from 1 to 6, more preferably an integer from 1 to 3;
l5 is an integer of 1 to 10, preferably an integer of 1 to 5, more preferably an integer of 1 to 3;
p5 is 0 or 1;
q5 is 0 or 1;
Here, at least one of p5 and q5 is 1, and the order of existence of each repeating unit enclosed in parentheses with p5 or q5 is arbitrary. ]
is a divalent organic group represented by wherein X ^B (typically the hydrogen atom of X ^B ) is substituted with one or more substituents selected from a fluorine atom, a C _1-3 alkyl group and a C _1-3 fluoroalkyl group; may be In preferred embodiments, ^XB is not substituted by these groups.

In a preferred embodiment, each X ^B above is independently -(R ⁵¹ ) _p5 -(X ⁵¹ ) _q5 -R ⁵² -. R ⁵² represents a single bond, -(CH ₂ ) _t5 - or an o-, m- or p-phenylene group, preferably -(CH ₂ ) _t5 -. t5 is an integer of 1-20, preferably an integer of 2-6, more preferably an integer of 2-3. wherein R ⁵² (typically the hydrogen atom of R ⁵² ) is substituted with one or more substituents selected from a fluorine atom, a C _1-3 alkyl group and a C _1-3 fluoroalkyl group; may be In preferred embodiments, R ⁵⁶ is not substituted by these groups.

Preferably, the above X ^B are each independently
single bond,
a C _1-20 alkylene group,
—R ⁵¹ —X ⁵³ —R ⁵² —, or —X ⁵⁴ —R ⁵² —
[Wherein, R ⁵¹ and R ⁵² have the same meanings as above,
^X53 is
-O-,
-S-,
-C(O)O-,
-CONR ^54- ,
-O-CONR ^54- ,
—Si(R ⁵³ ) ₂ —,
—(Si(R ⁵³ ) ₂ O) _m5 —Si(R ⁵³ ) ₂ —,
—O—(CH ₂ ) _u5 —(Si(R ⁵³ ) ₂ O) _m5 —Si(R ⁵³ ) ₂ —,
—O—(CH ₂ ) _u5 —Si(R ⁵³ ) ₂ —O—Si(R ⁵³ ) ₂ —CH ₂ CH ₂ —Si(R ⁵³ ) ₂ —O—Si(R ⁵³ ) ₂ —,
—O—(CH ₂ ) _u5 —Si(OCH ₃ ) ₂ OSi(OCH ₃ ) ₂ —,
—CONR ⁵⁴ —(CH ₂ ) _u5 —(Si(R ⁵³ ) ₂ O) _m5 —Si(R ⁵³ ) ₂ —,
-CONR ⁵⁴ -(CH ₂ ) _u5 -N(R ⁵⁴ )-, or -CONR ⁵⁴ -(o-, m- or p-phenylene)-Si(R ⁵³ ) ₂ -
(Wherein, R ⁵³ , R ⁵⁴ and m5 have the same meanings as above,
u5 is an integer of 1-20, preferably an integer of 2-6, more preferably an integer of 2-3. ),
^X54 is
-S-,
-C(O)O-,
-CONR ^54- ,
-O-CONR ^54- ,
—CONR ⁵⁴ —(CH ₂ ) _u5 —(Si(R ⁵⁴ ) ₂ O) _m5 —Si(R ⁵⁴ ) ₂ —,
-CONR ⁵⁴ -(CH ₂ ) _u5 -N(R ⁵⁴ )-, or -CONR ⁵⁴ -(o-, m- or p-phenylene)-Si(R ⁵⁴ ) ₂ -
(In the formula, each symbol has the same meaning as above.)
represents ]
can be

More preferably, the above X ^B are each independently
single bond,
a C _1-20 alkylene group,
—(CH ₂ ) _s5 —X ⁵³ —,
—(CH ₂ ) _s5 —X ⁵³ —(CH ₂ ) _t5 —
-X ⁵⁴ -, or -X ⁵⁴ -(CH ₂ ) _t5 -
[In the formula, X ⁵³ , X ⁵⁴ , s5 and t5 have the same meanings as above. ]
is.

More preferably, the above X ^B are each independently
single bond,
a C _1-20 alkylene group,
—(CH ₂ ) _s5 —X ⁵³ —(CH ₂ ) _t5 —, or —X ⁵⁴ —(CH ₂ ) _t5 —
[In the formula, each symbol has the same meaning as described above. ]
can be

In a preferred embodiment, each of X ^B above is independently
a single bond C _1-20 alkylene group,
—(CH ₂ ) _s5 —X ⁵³ —, or —(CH ₂ ) _s5 —X ⁵³ —(CH ₂ ) _t5 —
[In the formula,
X ⁵³ is -O-, -CONR ⁵⁴ -, or -O-CONR ⁵⁴ -;
each R ⁵⁴ independently represents a hydrogen atom, a phenyl group or a C _1-6 alkyl group;
s5 is an integer from 1 to 20,
t5 is an integer from 1 to 20; ]
can be

In a preferred embodiment, each of X ^B above is independently
—(CH ₂ ) _s5 —O—(CH ₂ ) _t5 —
^-CONR54- ( _CH2 ) _t5-
[In the formula,
each R ⁵⁴ independently represents a hydrogen atom, a phenyl group or a C _1-6 alkyl group;
s5 is an integer from 1 to 20,
t5 is an integer from 1 to 20; ]
can be

In one aspect, each of the above X ^B is independently
single bond,
a C _1-20 alkylene group,
—(CH ₂ ) _s5 —O—(CH ₂ ) _t5 —,
—(CH ₂ ) _s5 —(Si(R ⁵³ ) ₂ O) _m5 —Si(R ⁵³ ) ₂ —(CH ₂ ) _t5 —,
—(CH ₂ ) _s5 —O—(CH ₂ ) _u5 —(Si(R ⁵³ ) ₂ O) _m5 —Si(R ⁵³ ) ₂ —(CH ₂ ) _t5 — or —(CH ₂ ) _s5 —O— (CH ₂ ) _t5 —Si(R ⁵³ ) ₂ —(CH ₂ ) _u5 —Si(R ⁵³ ) ₂ —(C _v H _2v )—
[In the formula, R ⁵³ , m5, s5, t5 and u5 have the same meanings as above, and v5 is an integer of 1 to 20, preferably an integer of 2 to 6, more preferably an integer of 2 to 3. ]
is.

In the above formula, -(C _v H _2v )- may be linear or branched, for example -CH ₂ CH ₂ -, -CH ₂ CH ₂ CH ₂ -, -CH (CH ₃ )—, —CH(CH ₃ )CH ₂ —.

Each of X ^B above is independently one or more 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). It may be substituted by a substituent. In one aspect, X ^B is unsubstituted.

The above ^XB is coupled to ^RE on the left side of each formula and to ^RT on the right side.

The number average molecular weight of the polyoxyalkylene group-containing compound represented by formula (B) is preferably 100 to 10,000, more preferably 200 to 5,000, still more preferably 250 to 3,000, still more preferably It can be 250-2,000, such as 300-3,000, 300-2,000, 300-1,500, or 250-1,500. The number average molecular weight of the polyoxyalkylene group-containing compound can be measured by GPC, for example.

［式中：
Ｒ^Ｅ１は、それぞれ独立して、Ｒ^６１－Ｒ^Ｅ－Ｏ_ｑ２－であり；
Ｒ^Ｅ２は、－Ｒ^６２ _ｐ２－Ｒ^Ｅ－Ｏ_ｑ２－であり；
Ｒ^Ｅは、それぞれ独立して、ポリオキシアルキレン基であり；
Ｒ^６１は、水素原子、又はＣ_１－６アルキル基であり；
Ｒ^６２は、Ｃ_１－６アルキレン基であり；
ｐ２は、０又は１であり；
ｑ２は、それぞれ独立して、０又は１であり；
Ｒ^Ｔは、それぞれ独立して、水素原子、水酸基、又は、水酸基、加水分解性基、水素原子もしくは１価の有機基が結合したＳｉ原子を含む１価の基であり；
Ｘ^Ｂは、それぞれ独立して、単結合又は２～１０価の有機基であり；
α２は、１～９の整数であり；
β２は、１～９の整数であり；
γ２は、それぞれ独立して、１～９の整数である。］
で表される化合物である。 In one aspect, the polyoxyalkylene group-containing compound has the following formula (B1) or (B2):

[In the formula:
each R ^E1 is independently R ⁶¹ -R ^E -O _q2 -;
R ^E2 is -R ⁶² _p2 -R ^E -O _q2 -;
each R ^E is independently a polyoxyalkylene group;
R ⁶¹ is a hydrogen atom or a C _1-6 alkyl group;
R ⁶² is a C _1-6 alkylene group;
p2 is 0 or 1;
each q2 is independently 0 or 1;
R ^T is each independently a hydrogen atom, a hydroxyl group, or a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is bonded;
each X ^B is independently a single bond or a divalent to decavalent organic group;
α2 is an integer from 1 to 9;
β2 is an integer from 1 to 9;
γ2 is each independently an integer of 1-9. ]
It is a compound represented by

In formula (B1), α2 is an integer of 1-9 and β2 is an integer of 1-9. These α2 and β2 can vary depending on the valence of ^XA . The sum of α2 and β2 is the same as the valence of ^XB . For example, when X ^B is a decavalent organic group, the sum of α2 and β2 is 10, for example, α2 is 9 and β2 is 1, α2 is 5 and β2 is 5, or α2 is 1 and β2 is 9. obtain. Also, when X ^B is a divalent organic group, α2 and β2 are 1;

In formula (B2), γ2 is an integer of 1-9. γ2 can vary depending on the valence of ^XB . That is, γ2 is the value obtained by subtracting 1 from the valence of ^XB .

In formulas (B1) and (B2), the divalent to decavalent organic group in X ^B is preferably a divalent to octavalent organic group. In one aspect, such divalent to decavalent organic groups are preferably divalent to tetravalent organic groups, more preferably divalent organic groups. In another aspect, such divalent to decavalent organic groups are preferably trivalent to octavalent organic groups, more preferably trivalent to hexavalent organic groups.

In one aspect, X ^B is a single bond or a divalent organic group, α2 is 1 and β2 is 1.

In one aspect, X ^B is a single bond or a divalent organic group and γ2 is one.

In one embodiment, X ^B is a tri- to hexavalent organic group, α2 is 1 and β2 is 2-5.

In one embodiment, X ^B is a tri- to hexavalent organic group and γ2 is 2-5.

In one aspect, X ^B is a trivalent organic group, α2 is 1 and β2 is 2.

In one aspect, X ^B is a trivalent organic group and γ2 is two.

When X ^B is a single bond or a divalent organic group, the formulas (B1) and (B2) are represented by the following formulas (B1') and (B2').

［式中、Ｘ^ａは、単結合または２価の有機基である。］
で表される基が挙げられる In yet another aspect, X ^B is:

[In the formula, X ^a is a single bond or a divalent organic group. ]
A group represented by

X ^a above is a single bond or a divalent linking group that directly bonds to the isocyanuric ring. X ^a is preferably a single bond, an alkylene group, or a divalent group containing at least one bond selected from the group consisting of an ether bond, an ester bond, an amide bond and a sulfide bond, and An alkylene group of 1 to 10, or a divalent hydrocarbon group of 1 to 10 carbon atoms containing at least one bond selected from the group consisting of an ether bond, an ester bond, an amide bond and a sulfide bond is more preferred.

X ^a is represented by the following formula:
-(CX ¹²¹ X ¹²² ) _x1 -(X ^a1 ) _y1 -(CX ¹²³ X ¹²⁴ ) _z1 -
(Wherein, X ¹²¹ to X ¹²⁴ are each independently H, F, OH, or —OSi(OR ¹²¹ ) ₃ (Wherein, three R ¹²¹ each independently have 1 to is an alkyl group of 4.),
X ^a1 above 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 attached to CX ¹²¹ X ¹²² ),
x1 is an integer of 0-10, y1 is 0 or 1, and z1 is an integer of 1-10. )
A group represented by is more preferable.

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

As the above X ^a , the following formula:
-(CF ₂ ) _m11 -(CH ₂ ) _m12 -O-(CH ₂ ) _m13 -
(Wherein, m11 is an integer of 1 to 3, m12 is an integer of 1 to 3, and m13 is an integer of 1 to 3.)
A group represented by
-(CF ₂ ) _m14 -(CH ₂ ) _m15 -O-CH ₂ CH(OH)-(CH ₂ ) _m16 -
(Wherein, m14 is an integer of 1 to 3, m15 is an integer of 1 to 3, and m16 is an integer of 1 to 3.)
A group represented by
-(CF ₂ ) _m17 -(CH ₂ ) _m18 -
(Wherein, m17 is an integer of 1 to 3, and m18 is an integer of 1 to 3.)
A group represented by
-(CF ₂ ) _m19 -(CH ₂ ) _m20 -O-CH ₂ CH(OSi(OCH ₃ ) ₃ )-(CH ₂ ) _m21 -
(Wherein, m19 is an integer of 1 to 3, m20 is an integer of 1 to 3, and m21 is an integer of 1 to 3.)
or a group represented by
-( _CH2 ) _m22-
(Wherein, m22 is an integer of 1 to 3.)
A group represented by is particularly preferred.

The above X ^a is not particularly limited, but specifically,
—CH ₂ —, —C ₂ H ₄ —, —C ₃ H ₆ —, —C ₄ H ₈ —, —C ₄ H ₈ —O—CH ₂ —, —CO—O—CH ₂ —CH(OH) —CH ₂ —, —(CF ₂ ) _n5 — (n5 is an integer of 0 to 4), —(CF ₂ ) _n5 —(CH ₂ ) _m5 — (n5 and m5 are each independently 0 4), —CF ₂ CF ₂ CH ₂ OCH ₂ CH(OH)CH ₂ —, —CF ₂ CF ₂ CH 2 _{OCH 2} CH(OSi(OCH ₃ ) ₃ )CH ₂ —
etc.

In this aspect, each X ^B can independently be a divalent or trivalent organic group.

The component (B) may be a mixture of the compound represented by the above formula (B) and a partially condensed compound.

The content of component (B) is preferably 0.1 parts by mass or more, more preferably 0.5 parts by mass or more, still more preferably 1.0 parts by mass or more, based on 100 parts by mass of component (A). More preferably 2.0 parts by mass or more, for example 4.0 parts by mass or more. In addition, the content of component (B) is preferably 30 parts by mass or less, more preferably 20 parts by mass or less, and even more preferably 10 parts by mass or less with respect to 100 parts by mass of component (A).

In one aspect, the content of component (B) is preferably 0.1 to 30 parts by mass, more preferably 0.5 to 20 parts by mass, still more preferably 1 part by mass, relative to 100 parts by mass of component (A). .0 to 10 parts by weight, for example 2.0 to 30 parts by weight or 4.0 to 30 parts by weight.

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

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

In one aspect, the surface treatment agent is
Component (A): A two-part surface treatment agent containing a first liquid containing a fluoropolyether group-containing silane compound and Component (B): a second liquid containing a polyoxyalkylene group-containing compound.

When the surface treatment agent of the present disclosure is a two-part surface treatment agent, it may be first treated with the first liquid and then treated with the second liquid, or first treated with the second liquid and then You may process by a 1st liquid. Alternatively, the first liquid and the second liquid may be mixed and used immediately before use.

In another aspect, the surface treatment agent is a one-component surface treatment agent containing component (A) and component (B).

The surface treatment agent of the present disclosure is a (non-reactive) fluoropolyether compound, preferably a perfluoropolyether compound, which can be understood as a solvent, alcohol, fluorine-containing oil (hereinafter collectively referred to as "fluorine-containing oil"). ), (non-reactive) silicone compounds that can be understood as silicone oils (hereinafter referred to as “silicone oils”), compatibilizers, catalysts, surfactants, polymerization inhibitors, sensitizers, and the like.

Examples of the solvent include aliphatic hydrocarbons such as hexane, cyclohexane, heptane, octane, nonane, decane, undecane, dodecane, and mineral spirits; aromatic hydrocarbons such as benzene, toluene, xylene, naphthalene, and solvent naphtha. ; methyl acetate, ethyl acetate, propyl acetate, n-butyl acetate, isopropyl acetate, isobutyl acetate, cellosolve acetate, propylene glycol methyl ether acetate, carbitol acetate, diethyl oxalate, ethyl pyruvate, ethyl-2-hydroxybutyrate , ethyl acetoacetate, amyl acetate, methyl lactate, ethyl lactate, methyl 3-methoxypropionate, ethyl 3-methoxypropionate, methyl 2-hydroxyisobutyrate, ethyl 2-hydroxyisobutyrate and other esters; acetone, methyl ethyl ketone, Ketones such as methyl isobutyl ketone, 2-hexanone, cyclohexanone, methylaminoketone, 2-heptanone; ethyl cellosolve, methyl cellosolve, methyl cellosolve acetate, ethyl cellosolve acetate, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol Glycol ethers such as monobutyl ether, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monobutyl ether acetate, dipropylene glycol dimethyl ether, ethylene glycol monoalkyl ether; methanol, ethanol, iso-propanol, n-butanol, alcohols such as isobutanol, tert-butanol, sec-butanol, 3-pentanol, octyl alcohol, 3-methyl-3-methoxybutanol, tert-amyl alcohol; glycols such as ethylene glycol and propylene glycol; tetrahydrofuran, tetrahydro Cyclic ethers such as pyran and dioxane; amides such as N,N-dimethylformamide and N,N-dimethylacetamide; ether alcohols such as methyl cellosolve, cellosolve, isopropyl cellosolve, butyl cellosolve, and diethylene glycol monomethyl ether; diethylene glycol monoethyl ether Acetate; 1,1,2-trichloro-1,2,2-trifluoroethane, 1,2-dichloro-1,1,2,2-tetrafluoroethane, dimethylsulfoxide, 1,1-dichloro-1,2 , 2,3,3-pentafluoropropane (HCFC225), 1,1,2,2,3,3,4-heptafluorocyclopentane (e.g. Zeorola H), perfluorobutyl methyl ether (C ₄ F ₉ OCH _{3 ) (} e.g. HFE7100) _, perfluorobutyl ethyl ether (C4F9OC2H5) ₍ e.g. HFE7200) _, perfluorohexyl methyl ether _{( C2F5CF} ( _OCH3 ) _C3F7 ) ( Examples thereof include fluorine-containing solvents such as HFE7300), CF ₃ CH ₂ OH, CF ₃ CF ₂ CH ₂ OH and (CF ₃ ) ₂ CHOH. Alternatively, a mixed solvent of two or more of these may be used.

Examples of the alcohols include alcohols having 1 to 6 carbon atoms which may be substituted with one or more fluorine atoms, such as methanol, ethanol, iso-propanol, tert-butanol, CF ₃ CH ₂ OH, _{CF3CF2CH2OH ,} ( _CF3 ) _2CHOH , H _{( CF2CF2 ) CH2OH} , H _{( CF2CF2 ) 2CH2OH} , _H ( _{CF2CF2 ) 3CH2OH} mentioned. By adding these alcohols to the surface treating agent, the stability of the surface treating agent is improved, and the compatibility between component (A) and component (B) and the solvent is improved.

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

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

Examples of the fluorine-containing oil include, but are not particularly limited to, compounds represented by the following general formula (3) (perfluoropolyether compounds).
^Rf5- ( _OC4F8 ) _{a '} -( _OC3F6 ) _b' -( _OC2F4 ) _{c '} -( _OCF2 ) _d'- ^Rf6 ( ₃ )
In the formula, Rf ⁵ represents a C 1-16 alkyl group (preferably a C _1-16 perfluoroalkyl group) optionally substituted with one or more fluorine atoms, and Rf ⁶ is represents a C 1-16 alkyl group optionally substituted with one or more fluorine atoms (preferably a C _1-16 perfluoroalkyl group), a fluorine atom or a hydrogen atom, and Rf ⁵ and Rf ⁶ , more preferably each independently a C _1-3 perfluoroalkyl group.
a', b', c' and d' each represents the number of four repeating units of perfluoropolyether constituting the main skeleton of the polymer, and each independently represents an integer of 0 to 300, and a The sum of ', b', c' and d' is at least 1, preferably 1-300, more preferably 20-300. The order of existence of each repeating unit enclosed in parentheses with subscript a', b', c' or d' is arbitrary in the formula. Among these repeating units, -(OC ₄ F ₈ )- is -(OCF ₂ CF ₂ CF ₂ CF ₂ )-, -(OCF(CF ₃ )CF ₂ CF ₂ )-, -(OCF ₂ CF(CF ₃ ) CF ₂ )-,-(OCF ₂ CF ₂ CF(CF ₃ ))-,-(OC(CF ₃ ) ₂ CF ₂ )-,-(OCF ₂ C(CF ₃ ) ₂ )-,-(OCF (CF ₃ )CF(CF ₃ ))-, -(OCF(C ₂ F ₅ )CF ₂ )- and (OCF ₂ CF(C ₂ F ₅ ))-, preferably - (OCF ₂ CF ₂ CF ₂ CF ₂ )-. -(OC ₃ F ₆ )- may be any of -(OCF ₂ CF ₂ CF ₂ )-, -(OCF(CF ₃ )CF ₂ )- and (OCF ₂ CF(CF ₃ ))- , preferably -(OCF ₂ CF ₂ CF ₂ )-. -(OC ₂ F ₄ )- may be either -(OCF ₂ CF ₂ )- or (OCF(CF ₃ ))-, but is preferably -(OCF ₂ CF ₂ )-.

Examples of the perfluoropolyether compound represented by the general formula (3) include compounds represented by any of the following general formulas (3a) and (3b) (one or a mixture of two or more ).
Rf ⁵ -(OCF ₂ CF ₂ CF ₂ ) _b″ -Rf ⁶ (3a)
^Rf5- ( _{OCF2CF2CF2CF2 ) a"} -( _{OCF2CF2CF2 ) b" -} ( _{OCF2CF2 ) c "} -( _OCF2 ) _{d" -Rf6} ^... (3b )
In these formulas, Rf ⁵ and Rf ⁶ are as described above; in formula (3a), b″ is an integer of 1 or more and 100 or less; is an integer of 0 or more and 30 or less, and c" and d" are each independently an integer of 1 or more and 300 or less. The order of existence of each repeating unit is arbitrary in the formula.

From another point of view, the fluorine-containing oil may be a compound represented by the general formula Rf ³ —F (wherein Rf ³ is a C _5-16 perfluoroalkyl group). It may also be a chlorotrifluoroethylene oligomer.

The fluorine-containing oil may have an average molecular weight of 500-10,000. The molecular weight of the fluorine-containing oil can be measured using GPC.

The fluorine-containing oil may be contained in an amount of, for example, 0 to 50% by mass, preferably 0 to 30% by mass, more preferably 0 to 5% by mass, relative to the surface treatment agent of the present disclosure. In one aspect, the surface treatment agent of the present disclosure is substantially free of fluorine-containing oil. “Substantially free of fluorine-containing oil” means that it does not contain fluorine-containing oil at all, or may contain a very small amount of fluorine-containing oil.

In one aspect, the average molecular weight of the fluorine-containing oil may be larger than the average molecular weight of the fluoropolyether group-containing silane compound. With such an average molecular weight, particularly in the case of forming a surface treatment layer by a vacuum deposition method, it is possible to obtain more excellent friction durability and surface lubricity.

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

The fluorine-containing oil contributes to improving the surface lubricity of the layer formed by the surface treatment agent of the present disclosure.

As the silicone oil, for example, linear or cyclic silicone oil having 2,000 or less siloxane bonds can be used. Linear silicone oils may be so-called straight silicone oils and modified silicone oils. Examples of straight silicone oils include dimethylsilicone oil, methylphenylsilicone oil, and methylhydrogensilicone oil. Modified silicone oils include those obtained by modifying straight silicone oils with alkyl, aralkyl, polyether, higher fatty acid ester, fluoroalkyl, amino, epoxy, carboxyl, alcohol and the like. Cyclic silicone oil includes, for example, cyclic dimethylsiloxane oil.

In the surface treatment agent of the present disclosure, such a silicone oil is added to a total of 100 parts by mass of the fluoropolyether group-containing silane compound of the present disclosure (the sum of these when two or more types, the same applies hereinafter), for example It can be contained in an amount of 0 to 300 parts by weight, preferably 50 to 200 parts by weight.

Silicone oil contributes to improving the surface lubricity of the surface treatment layer.

As the compatibilizer, 2,2,2-trifluoroethanol, 2,2,3,3,3-pentafluoro-1-propanol or 2,2,3,3,4,4,5,5- fluorine-substituted alcohols such as octafluoro-1-pentanol, preferably fluorine-substituted alcohols having CF ₂ H at the terminal, fluorine-substituted aryls such as 1,3-bis(trifluoromethyl)benzene, preferably fluorine-substituted benzene, and the like; mentioned.

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

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

Other components include, in addition to the above, tetraethoxysilane, methyltrimethoxysilane, 3-aminopropyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, methyltriacetoxysilane, and the like.

The surface treatment agent of the present disclosure can be formed into pellets by impregnating a porous material such as a porous ceramic material, metal fiber such as steel wool into a flocculated material. The pellet can be used, for example, for vacuum deposition.

In addition to the components described above, the surface treatment agent of the present disclosure contains trace amounts of impurities such as Pt, Rh, Ru, 1,3-divinyltetramethyldisiloxane, triphenylphosphine, NaCl, KCl, and silane condensates. obtain.

Articles of the present disclosure are described below.

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

Substrates that can be used in the present disclosure include, for example, glass, resins (natural or synthetic resins, such as common plastic materials), metals, ceramics, semiconductors (silicon, germanium, etc.), fibers (woven fabrics, non-woven fabrics etc.), fur, leather, wood, ceramics, stone, etc., construction members, etc., sanitary products, and any suitable material.

For example, when the article to be manufactured is an optical member, the material forming the surface of the substrate may be a material for optical members, such as glass or transparent plastic. Moreover, when the article to be manufactured is an optical member, some layer (or film) such as a hard coat layer or an antireflection layer may be formed on the surface (outermost layer) of the substrate. The antireflection layer may be either a single antireflection layer or a multi-layer antireflection layer. Examples of inorganic materials _that can be used for the antireflection layer include _SiO2 , SiO, _ZrO2 , _TiO2 , _TiO , _{Ti2O3 , Ti2O5} , _Al2O3 , _{Ta2O5 , Ta3O5 .} , Nb ₂ O ₅ , HfO ₂ , Si ₃ N ₄ , CeO ₂ , MgO, Y ₂ O ₃ , SnO ₂ , MgF ₂ , WO ₃ and the like. These inorganic substances may be used alone or in combination of two or more (for example, as a mixture). In the case of a multi-layer antireflection layer, it is preferable to use SiO ₂ and/or SiO for the outermost layer. When the article to be manufactured is an optical glass component for a touch panel, a thin film using a transparent electrode such as indium tin oxide (ITO) or indium zinc oxide is provided on part of the surface of the substrate (glass). may be In addition, depending on the specific specifications of the base material, an insulating layer, an adhesive layer, a protective layer, a decorative frame layer (I-CON), an atomized film layer, a hard coating film layer, a polarizing film, a phase retardation film, and a liquid crystal display module.

The shape of the substrate is not particularly limited, and may be, for example, plate-like, film, or other shapes. Moreover, the surface region of the base material on which the surface treatment layer is to be formed may be at least part of the surface of the base material, and can be appropriately determined according to the application and specific specifications of the article to be manufactured.

In one embodiment, such a substrate may consist of a material that originally has hydroxyl groups, at least at its surface portion. Examples of such materials include glass, metals (particularly base metals), ceramics, and semiconductors on which a natural oxide film or thermal oxide film is formed. Alternatively, in the case where the base material does not have sufficient hydroxyl groups or does not originally have hydroxyl groups, such as resins, hydroxyl groups are introduced onto the surface of the base material by subjecting the base material to some pretreatment. can be increased or increased. Examples of such pretreatment include plasma treatment (eg, corona discharge) and ion beam irradiation. Plasma treatment can introduce or increase hydroxyl groups on the substrate surface, and can also be suitably used to clean the substrate surface (remove foreign matter and the like). Further, as another example of such a pretreatment, an interfacial adsorbent having a carbon-carbon unsaturated bond group is preliminarily formed on the substrate surface by a monomolecular film by the LB method (Langmuir-Blodgett method), a chemical adsorption method, or the like. A method in which the unsaturated bond is cleaved in an atmosphere containing oxygen, nitrogen, or the like is exemplified.

Alternatively, such a substrate may comprise, at least a portion of its surface, another reactive group, such as a silicone compound having one or more Si—H groups, or a material comprising an alkoxysilane. .

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

The article of the present disclosure is produced by forming a layer of the surface treatment agent of the present disclosure on the surface of the substrate, and post-treating this layer as necessary, thereby forming a layer from the surface treatment agent of the present disclosure. It can be manufactured by forming.

Layer formation of the surface treatment agent of the present disclosure can be carried out by applying the surface treatment agent to the surface of the substrate so as to coat the surface. A coating method is not particularly limited. For example, wet coating methods and dry coating methods can be used.

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

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

Furthermore, coating by the atmospheric pressure plasma method is also possible.

When using wet coating methods, the surface treatment agents of the present disclosure may be diluted with a solvent prior to application to the substrate surface. From the viewpoint of the stability of the composition of the present disclosure and the volatility of the solvent, the following solvents are preferably used: perfluoroaliphatic hydrocarbons having 5 to 12 carbon atoms (for example, perfluorohexane, perfluoromethylcyclohexane and perfluoro-1,3-dimethylcyclohexane); polyfluoroaromatic hydrocarbons (eg, bis(trifluoromethyl)benzene); polyfluoroaliphatic hydrocarbons (eg, C ₆ F ₁₃ CH ₂ CH ₃ (eg, Asahi Glass Asahiklin (registered trademark) AC-6000 manufactured by Co., Ltd.), 1,1,2,2,3,3,4-heptafluorocyclopentane (for example, Zeorora (registered trademark) H manufactured by Nippon Zeon Co., Ltd.); Hydrofluoroethers ( _HFE ) (e.g. perfluoropropyl methyl ether ( _C3F7OCH3 ) (e.g. Novec™ ₇₀₀₀ from Sumitomo 3M), perfluorobutyl _methyl ether ( _{C4F9OCH3 )} ) (for example, Novec™ 7100 manufactured by Sumitomo 3M Limited), perfluorobutyl ethyl ether (C ₄ F ₉ OC ₂ H ₅ ) (for example, Novec™ 7200 manufactured by Sumitomo 3M Limited), perfluoro _Alkyl perfluoroalkyl ethers ( _{perfluoroalkyl} groups _and alkyl _{groups are} directly may be chain or branched), or CF ₃ CH ₂ OCF ₂ CHF ₂ (eg Asahiklin (registered trademark) AE-3000 manufactured by Asahi Glass Co., Ltd.), etc. These solvents may be used alone or , can be used as a mixture of two or more, among which hydrofluoroethers are preferred, and perfluorobutyl methyl ether (C ₄ F ₉ OCH ₃ ) and/or perfluorobutyl ethyl ether (C ₄ F ₉ OC ₂ H ₅ ) is particularly preferred.

When using a dry coating method, the surface treatment agents of the present disclosure may be subjected to the dry coating method as is, or may be diluted with the solvents described above and then subjected to the dry coating method.

Layering of the surface treatment agent is preferably carried out such that the surface treatment agent of the present disclosure is present in the layer together with a catalyst for hydrolysis and dehydration condensation. Conveniently, when the wet coating method is used, the catalyst may be added to the diluted solution of the surface treatment agent of the present disclosure after the surface treatment agent of the present disclosure has been diluted with a solvent, just prior to application to the substrate surface. In the case of the dry coating method, the surface treatment agent of the present disclosure to which the catalyst has been added is vapor-deposited (usually, vacuum deposition) as it is, or the surface treatment agent of the present disclosure to which the catalyst is added is applied to a metal porous body such as iron or copper. A vapor deposition (usually vacuum vapor deposition) process may be performed using a pellet-shaped material impregnated with .

Any suitable acid or base can be used for the catalyst. Examples of acid catalysts that can be used include acetic acid, formic acid, and trifluoroacetic acid. Moreover, as a basic catalyst, for example, ammonia, organic amines, and the like can be used.

The surface treatment layer included in the articles of the present disclosure has both high friction durability. In addition to high friction durability, the surface treatment layer has water repellency, oil repellency, and antifouling properties (for example, it prevents the adhesion of fingerprints and other stains), depending on the composition of the surface treatment agent used. Waterproofness (prevents water from penetrating into electronic parts, etc.), surface slipperiness (or lubricity, such as wiping off of fingerprints and other stains, excellent touch feeling on fingers), chemical resistance, etc. It can be suitably used as a functional thin film.

Therefore, the present disclosure further relates to an optical material having the surface treatment layer as the outermost layer.

As optical materials, in addition to optical materials related to displays and the like as exemplified later, a wide variety of optical materials are preferably exemplified: for example, cathode ray tubes (CRT; e.g., personal computer monitors), liquid crystal displays, plasma displays, organic EL. Displays such as displays, inorganic thin film EL dot matrix displays, rear projection displays, fluorescent display tubes (VFD), field emission displays (FED; Field Emission Display), protective plates for these displays, or antireflection films on their surfaces processed.

The article of the present disclosure is not particularly limited, but may be an optical member. Examples of optical members include the following: lenses for eyeglasses; front protective plates, antireflection plates, polarizing plates, anti-glare plates for displays such as PDP and LCD; touch panel sheets; disc surfaces of optical discs such as Blu-ray (registered trademark) discs, DVD discs, CD-Rs, and MOs; optical fibers;

Articles of the present disclosure may also be medical devices or medical materials.

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

The articles of the present disclosure have been described above in detail. Note that the article, the method for manufacturing the article, and the like of the present disclosure are not limited to the examples given above.

The articles of the present disclosure will be described below in Examples, but the present disclosure is not limited to the following Examples. In this example, the order of existence of the repeating units constituting the fluoropolyether and the polyether is arbitrary, and the chemical formula shown below indicates the average composition.

The following (A) to (D) were prepared as perfluoropolyether-modified antifouling agents, and the following (a) to (h) were prepared as polyoxyalkylene additives.

(Perfluoropolyether-modified antifouling agent)
_{( A ) : CF3CF2CF2O ( CF2CF2CF2O ) 24CF2CF2CONHCH2C} [ _{CH2CH2CH2Si ( OCH3 ) 3 ] 3}

( _B ) _{: CF3O} ( _CF2CF2O ) _{15 ( CF2O ) 16CF2CONHCH2C} [ _CH2CH2CH2Si ( _OCH3 ) _{3 ] 3}

(C): 95/5 mass % mixture of (C-1) and (C-2) (C-1): CF ₃ O(CF ₂ CF ₂ O) ₁₅ (CF ₂ O) ₁₆ CF ₂ CH ₂ OCH _{2CH2CH2Si [ CH2CH2CH2Si ( OCH3 ) 3 ] 3}
(C-2): CF ₃ O(CF ₂ CF ₂ O) ₁₅ (CF ₂ O) ₁₆ CF <sub>3

( D</sub> ): _CF3O ( _{CF2CF2O ) 15 (} CF2O _{) 16CF2C [} O( _{CH2CH2O ) 2CH3 ]} [CH2CH2CH2Si( _OCH3 ) ₃ ] ₂

(Polyoxyalkylene additive)
(a) _{: CH3O} ( _C2H4O ) _10Si ( _OCH3 ) ₃

( _{b ) : CH3COO ( C2H4O} ) _8CH2CH2CH2Si ( <sub>OC2H5 ) 3

( c ) : ( C2H5O ) 3SiCH2CH2CH2NHCO ( C2H5O ) 12CONHCH2CH2CH2Si</sub> ( <sub>OC2H5 ) 3

( d</sub> ) _{: CH3O ( C2H4O} ) _{22CH2CH2CH2Si ( OC2H5} ) ₃

( _{e ) : CH3O ( C2H4O} ) _6CH2CH2CH2Si ( _{OC2H5 ) 3}

(f ₎ : HO( _CH2CH2O ) _8H

(g): HO[ _CH2CH ( _CH3 )O] _6H

(h): H{OCH( _CH3 ) _CH2 }OCH[ _CH2O { _CH2CH ( _CH3 )O} _2H ] ₂

Example 1
Perfluoropolyether-modified antifouling agent (A) and polyoxyalkylene additive (a) were mixed at a weight ratio of 100:2. The resulting mixture was added to a mixed solvent of Novec 7300 (manufactured by 3M) and 2,2,3,3,3-pentafluoro-1-propanol (hereinafter also referred to as “PFPrOH”) (mass ratio 98:2). and diluted to 10% by mass to prepare a surface treatment agent 1.

The surface treatment agent 1 prepared above was vacuum-deposited on a chemically strengthened glass (manufactured by Corning, "Gorilla" glass, thickness 0.7 mm). The processing conditions for vacuum deposition are a pressure of 3.0×10 ⁻³ Pa, and first, silicon dioxide is deposited to a thickness of 7 nm on the surface of this chemically strengthened glass by an electron beam deposition method to form a silicon dioxide film. Subsequently, 0.2 mg of a surface treatment agent was vapor-deposited per sheet of chemically strengthened glass (55 mm x 100 mm). After that, the chemically strengthened glass with a vapor deposition film was allowed to stand in an atmosphere of 20° C. and 65% humidity for 24 hours. As a result, the deposited film was cured to form a surface treatment layer.

Examples 2-5
Surface treatment agents 2 to 2 were prepared in the same manner as in Example 1, except that polyoxyalkylene additives (b), (c), (d), and (e) were used instead of the additive (a). 5 was prepared to form a surface treatment layer.

Example 6
A polyoxyalkylene additive (b) is used instead of the additive (a), ethanol (hereinafter also referred to as "EtOH") is used instead of PFPrOH, and a mixed solvent of Novec 7300 (manufactured by 3M) and EtOH ( A surface treatment agent 6 was prepared and a surface treatment layer was formed in the same manner as in Example 1, except that the mass ratio was 90:10).

Example 7
A surface treatment agent 7 was prepared and a surface treatment layer was formed in the same manner as in Example 6, except that the mass ratio of the antifouling agent (A) and the additive (b) was 100:10.

Examples 8-10
Surface Treatment Agent 8 ~10 were prepared. Furthermore, a surface treatment layer was formed in the same manner as in Example 1, except that surface treatment agents 8 to 10 were used and the deposition amount of the surface treatment agent was set to 0.4 mg.

Examples 11-13
Polyoxyalkylene additives (c), (d) and (e) were used in place of the additive (a), and the mass ratio of the antifouling agent (A) to the additive was 100:10. Surface treatment agents 11 to 13 were prepared in the same manner as in Example 1. Further, a surface treatment layer was formed in the same manner as in Example 1 except that surface treatment agents 11 to 13 were used and the deposition amount was 0.4 mg.

Example 14
Surface treatment agent 14 was added in the same manner as in Example 1 except that additive (e) was used instead of additive (a) and the mass ratio of antifouling agent (A) and additive was 100:4. prepared. Furthermore, a surface treatment layer was formed in the same manner as in Example 1 except that the surface treatment agent 14 was used and the deposition amount was 0.4 mg.

Examples 15-17
Polyoxyalkylene additives (f), (g) and (h) were used in place of the additive (a), and the mass ratio of the antifouling agent (A) to the additive was 100:10. Surface treatment agents 15 to 17 were prepared in the same manner as in Example 1. Furthermore, in the same manner as in Example 1, except that the surface treatment agents 15 to 17 were used and the deposition amount was 0.4 mg.

Example 18
Antifouling agent (A) and additive (b) were mixed at a mass ratio of 100:10. The obtained mixture was diluted to 10% by mass only with Novec 7300 (manufactured by 3M) without using EtOH as a co-solvent to obtain a dispersed suspension. To the resulting suspension, water was added in an amount corresponding to 10 mol % with respect to the total Si atoms and allowed to stand at room temperature for 24 hours to partially condense the antifouling agent (A) and the additive (b) to produce a surface treatment agent 18. was prepared. A surface treatment layer was formed in the same manner as in Example 1, except that surface treatment agent 18 was used and the deposition amount was 0.4 mg.

Examples 19-21
Instead of the antifouling agent (A), perfluoropolyether-modified antifouling agents (B), (C) and (D) are mixed with the additive (b), respectively, and the mixture is adjusted to 20% by mass. Surface treatment agents 19 to 21 were prepared in the same manner as in Example 9, except that they were diluted so that the surface treatment layers were formed.

Comparative example 1
A comparative surface treatment agent 1 was prepared and a surface treatment layer was formed in the same manner as in Example 1, except that the polyoxyalkylene compound (a) was not used.

Comparative example 2
A comparative surface treatment agent 2 was prepared in the same manner as in Comparative Example 1 except that EtOH was used instead of PFPrOH and a mixed solvent of Novec 7300 (manufactured by 3M) and EtOH (mass ratio 90:10) was used. A surface treatment layer was formed.

Comparative example 3
A surface treatment layer was formed in the same manner as in Comparative Example 2, except that Comparative Surface Treatment Agent 2 prepared in the same manner as in Comparative Example 2 was used and the deposition amount was changed to 0.4 mg.

Comparative Examples 4-6
Comparative Example except that the perfluoropolyether-modified antifouling agents (B), (C) and (D) were used instead of the antifouling agent (A) and diluted to 20% by mass. Comparative surface treatment agents 4 to 6 were prepared in the same manner as in 3 to form surface treatment layers.

(Eraser friction durability test)
For the surface treatment layers formed on the substrate surface in Examples 1 to 21 and Comparative Examples 1 to 6 above, the static contact angle (degrees) of water was measured at 5 points, and the average value (degrees) was taken. , the value of the initial contact angle (degrees) (the number of times of friction is 0).

After that, the substrate on which the surface treatment layer is formed is placed horizontally, an eraser (manufactured by Minoan, model number: MB006004, diameter 0.6 cm) is brought into contact with the surface of the surface treatment layer, and a load of 1000 gf is applied thereon, After that, the eraser was reciprocated at a speed of 20 mm/sec while a load was applied, and an eraser friction endurance test was carried out. Five static contact angles (degrees) of water were measured every 2500 reciprocations, and the average value (degrees) was taken. The test was stopped when the average value (degrees) of the contact angle became less than 100 degrees, and the number of reciprocations when the contact angle exceeded 100 degrees before that was adopted as the numerical value (times) of the eraser friction durability. and shown in the table below.

As can be seen from the above results, in contrast to the comparative examples treated with the perfluoropolyether-modified antifouling agent alone, the examples in which the polyoxyalkylene additive was added maintained the static contact angle of water. It was confirmed that the eraser friction durability was remarkably improved.

The article of the present disclosure can be suitably used in various applications, for example, as an optical member such as a touch panel.

Claims (29)

Component (A): a fluoropolyether group-containing silane compound, and Component (B): a surface treatment agent containing a polyoxyalkylene group-containing compound. The fluoropolyether group-containing silane compound has the following formula (A1) or (A2):

[In the formula:
each R ^F1 is independently Rf ¹ —R ^F —O _q —;
R ^F2 is -Rf ² _p -R ^F -O _q -;
each R ^F is independently a divalent fluoropolyether group;
each Rf ¹ is independently a C _1-16 alkyl group optionally substituted by one or more fluorine atoms;
Rf ² is a C _1-6 alkylene group optionally substituted by one or more fluorine atoms;
p is 0 or 1;
each q is independently 0 or 1;
R ^Si is each independently a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is bonded;
at least one R ^Si is a monovalent group comprising a Si atom to which a hydroxyl group or a hydrolyzable group is attached;
each X ^A is independently a single bond or a divalent to decavalent organic group;
α1 is an integer from 1 to 9;
β1 is an integer from 1 to 9;
γ1 is each independently an integer of 1-9. ]
The surface treatment agent according to claim 1, which is a compound represented by. each Rf ¹ is independently a C _1-16 perfluoroalkyl group;
each Rf ² is independently a C _1-6 perfluoroalkylene group;
The surface treating agent according to claim 2. Each R ^F is independently of the formula:
- (OC ₆ F ₁₂ ) _a - (OC ₅ F ₁₀ ) _b - (OC ₄ F ₈ ) _c - (OC ₃ R ^Fa ₆ ) _d - (OC ₂ F ₄ ) _e - (OCF ₂ ) _f -
[In the formula:
each R ^Fa is independently a hydrogen atom, a fluorine atom or a chlorine atom,
a, b, c, d, e and f are each independently an integer of 0 to 200, the sum of a, b, c, d, e and f is 1 or more; The order of existence of each repeating unit bracketed with c, d, e or f is arbitrary in the formula, provided that when all ^RFa are hydrogen atoms or chlorine atoms, a, b, At least one of c, e and f is 1 or more. ]
The surface treatment agent according to claim 2, which is a group represented by. The surface treating agent according to claim 4, wherein ^RFa is a fluorine atom. R ^F each independently represents the following formula (f1), (f2), (f3), (f4), (f5) or (f6):
-(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e - (f1)
[Wherein, d is an integer of 1 to 200, and e is 0 or 1. ],
-(OC ₄ F ₈ ) _c -(OC ₃ F ₆ ) _d -(OC ₂ F ₄ ) _e -(OCF ₂ ) _f - (f2)
[Wherein, c and d are each independently an integer of 0 to 30;
e and f are each independently an integer from 1 to 200;
the sum of c, d, e and f is an integer from 10 to 200;
The order of existence of each repeating unit bracketed with subscript c, d, e or f is arbitrary in the formula. ],
-(R ⁶ -R ⁷ ) _g - (f3)
[wherein R ⁶ is OCF ₂ or OC ₂ F ₄ ;
R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ , or two or three groups selected from these groups. is a combination of groups;
g is an integer from 2 to 100; ],
—(R ⁶ —R ⁷ ) _g —R ^r —(R ^7′ —R ^6′ ) _g′ − (f4)
[wherein R ⁶ is OCF ₂ or OC ₂ F ₄ ;
R ⁷ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ or 2 independently selected from these groups or a combination of three groups,
R ^6' is OCF ₂ or OC ₂ F ₄ ;
R ^7′ is a group selected from OC ₂ F ₄ , OC ₃ F ₆ , OC ₄ F ₈ , OC ₅ F ₁₀ and OC ₆ F ₁₂ or independently selected from these groups a combination of two or three groups,
g is an integer from 2 to 100,
g' is an integer from 2 to 100,
^Rr is
(In the formula, * indicates the binding position.)
is. ];
- (OC ₆ F ₁₂ ) _a - (OC ₅ F ₁₀ ) _b - (OC ₄ F ₈ ) _c - (OC ₃ F ₆ ) _d - (OC ₂ F ₄ ) _e - (OCF ₂ ) _f - (f5)
[Wherein, 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 a, b, c, d, The order of existence of each repeating unit bracketed with e or f is arbitrary in the formula. ]
- (OC ₆ F ₁₂ ) _a - (OC ₅ F ₁₀ ) _b - (OC ₄ F ₈ ) _c - (OC ₃ F ₆ ) _d - (OC ₂ F ₄ ) _e - (OCF ₂ ) _f - (f6)
[Wherein, 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 a, b, c, d, The order of existence of each repeating unit bracketed with e or f is arbitrary in the formula. ]
The surface treatment agent according to claim 2, which is a group represented by. R ^Si is represented by the following formula (S1), (S2), (S3), (S4) or (S5):
[In the formula:
each R ¹¹ is independently a hydroxyl group or a hydrolyzable group;
each R ¹² is independently a hydrogen atom or a monovalent organic group;
n1 is an integer of 0 to 3 independently for each (SiR ¹¹ _n1 R ¹² _3-n1 ) unit;
each X ¹¹ is independently a single bond or a divalent organic group;
each R ¹³ is independently a hydrogen atom or a monovalent organic group;
t is each independently an integer of 2 or greater;
each R ¹⁴ is independently a hydrogen atom, a halogen atom or —X ¹¹ —SiR ¹¹ _n1 R ¹² _3-n1 ;
each occurrence of R ¹⁵ is independently a single bond, an oxygen atom, an alkylene group having 1 to 6 carbon atoms, or an alkyleneoxy group having 1 to 6 carbon atoms;
each R ^a1 is independently —Z ¹ —SiR ²¹ _p1 R ²² _q1 R ²³ _r1 ;
each Z ¹ is independently an oxygen atom or a divalent organic group;
each R ²¹ is independently -Z ^1' -SiR ^21' _p1' R ^22' _q1' R ^23' _r1' ;
each R ²² is independently a hydroxyl group or a hydrolyzable group;
each R ²³ is independently a hydrogen atom or a monovalent organic group;
each p1 is independently an integer from 0 to 3;
each q1 is independently an integer from 0 to 3;
each r1 is independently an integer from 0 to 3;
the sum of p1, q1 and r1 is 3 in units of (SiR ²¹ _p1 R ²² _q1 R ²³ _r1 );
each Z ^1' is independently an oxygen atom or a divalent organic group;
each R ^21′ is independently —Z ^1″ —SiR ^22″ _q1″ R ^23″ _r1″ ;
each R ^22' is independently a hydroxyl group or a hydrolyzable group;
each R ^23′ is independently a hydrogen atom or a monovalent organic group;
each p1' is independently an integer from 0 to 3;
each q1' is independently an integer from 0 to 3;
each r1' is independently an integer from 0 to 3;
the sum of p1′, q1′ and r1′ is 3 in units of (SiR ^21′ _p1′ R ^22′ _q1′ R ^23′ _r1′ );
Z ^1″ are each independently an oxygen atom or a divalent organic group;
each R ^22″ is independently a hydroxyl group or a hydrolyzable group;
each R ^23″ is independently a hydrogen atom or a monovalent organic group;
each q1″ is independently an integer from 0 to 3;
each r1″ is independently an integer from 0 to 3;
the sum of q1″ and r1″ is 3 in units of (SiR ^22″ _q1″ R ^23″ _r1″ );
each R ^b1 is independently a hydroxyl group or a hydrolyzable group;
each R ^c1 is independently a hydrogen atom or a monovalent organic group;
each k1 is independently an integer from 0 to 3;
each l1 is independently an integer from 0 to 3;
each m1 is independently an integer from 0 to 3;
the sum of k1, l1 and m1 is 3 in units of (SiR ^a1 _k1 R ^b1 _l1 R ^c1 _m1 );
each R ^d1 is independently -Z ² -CR ³¹ _p2 R ³² _q2 R ³³ _r2 ;
Z ² are each independently a single bond, an oxygen atom or a divalent organic group;
each R ³¹ is independently -Z ^2' -CR ^32' _q2' R ^33' _r2' ;
each R ³² is independently —Z ³ —SiR ³⁴ _n2 R ³⁵ _3-n2 ;
each R ³³ is independently a hydrogen atom, a hydroxyl group, or a monovalent organic group;
each p2 is independently an integer from 0 to 3;
each q2 is independently an integer from 0 to 3;
each r2 is independently an integer from 0 to 3;
^the sum _of p2, q2 and _r2 ^is 3 in units of ( ^{CR31p2R32q2R33r2} ) _;
Z ^2' are each independently a single bond, an oxygen atom or a divalent organic group;
each R ^32′ is independently —Z ³ —SiR ³⁴ _n2 R ³⁵ _3-n2 ;
each R ^33' is independently a hydrogen atom, a hydroxyl group, or a monovalent organic group;
each q2' is independently an integer from 0 to 3;
each r2' is independently an integer from 0 to 3;
the sum of q2′ and r2′ is 3 in units of (CR ^32′ _q2′ R ^33′ _r2′ );
Z ³ is each independently a single bond, an oxygen atom or a divalent organic group;
each R ³⁴ is independently a hydroxyl group or a hydrolyzable group;
each R ³⁵ is independently a hydrogen atom or a monovalent organic group;
each n2 is independently an integer from 0 to 3;
each R ^e1 is independently —Z ³ —SiR ³⁴ _n2 R ³⁵ _3-n2 ;
each R ^f1 is independently a hydrogen atom, a hydroxyl group, or a monovalent organic group;
k2 is each independently an integer from 0 to 3;
each l2 is independently an integer from 0 to 3;
each m2 is independently an integer from 0 to 3;
the sum of k2, l2 and m2 is 3 in units of (CR ^d1 _k2 R ^e1 _l2 R ^f1 _m2 );
R ^g1 and R ^h1 each independently represent -Z ⁴ -SiR ¹¹ _n1 R ¹² _3-n1 , -Z ⁴ -SiR ^a1 _k1 R ^b1 _l1 R ^c1 _m1 or -Z ⁴ -CR ^d1 _k2 R ^e1 _l2 R ^f1 _m2 ;
Z ⁴ are each independently a single bond, an oxygen atom or a divalent organic group;
However, in formulas (S1), (S2), (S3), (S4) and (S5), there is at least one Si atom to which a hydroxyl group or hydrolyzable group is bonded. ]
The surface treatment agent according to claim 2, which is a group represented by. 3. The surface treatment agent according to claim 2, wherein α1, β1, and γ1 are 1. X ^A is a single bond or the following formula:
-(R ⁵¹ ) _p5 -(X ⁵¹ ) _q5 -
[In the formula:
R ⁵¹ is a single bond, —(CH ₂ ) _s5 — or an o-, m- or p-phenylene group,
s5 is an integer from 1 to 20,
X ⁵¹ is -(X ⁵² ) _l5 -,
Each X ⁵² is independently —O—, —S—, o-, m- or p-phenylene group, —C(O)O—, —Si(R ⁵³ ) ₂ —, —(Si(R ⁵³ ) ₂ O) _m5 -Si(R ⁵³ ) ₂ -, -CONR ⁵⁴ -, -O-CONR ⁵⁴ -, -NR ⁵⁴ - and -(CH ₂ ) _n5 -, a group selected from the group consisting of
each R ⁵³ is independently a phenyl group, a C _1-6 alkyl group or a C _1-6 alkoxy group;
each R ⁵⁴ is independently a hydrogen atom, a phenyl group or a C _1-6 alkyl group;
m5 is each independently an integer of 1 to 100,
n5 are each independently an integer of 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 enclosed in parentheses with p5 or q5 is arbitrary;
The right side binds to R ^Si . ]
The surface treatment agent according to claim 2, which is a divalent organic group represented by. X ^A is the following formula:

[In the formula, each X ^a is independently a single bond or a divalent organic group. ]
The surface treatment agent according to claim 2, which is a group represented by. The polyoxyalkylene group-containing compound has the following formula (B):

[In the formula:
each R ^E is independently a monovalent to decavalent polyoxyalkylene group;
each X ^B is independently a single bond or a divalent to decavalent organic group;
R ^T is each independently a hydrogen atom, a C _1-6 alkyl group, —OR ⁶⁵ , —SR ⁶⁵ , —NR ⁶⁵ ₂ , —COOR ⁶⁵ , —COR ⁶⁵ , —OCOR ⁶⁵ , —CONR ⁶⁵ , —NR ⁶⁵ COR ⁶⁵ , a C _3-16 cycloalkyl group, a C _5-16 aryl group, or a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is bonded;
each R ⁶⁵ is independently a hydrogen atom or a C _1-6 alkyl group;
δ1 is an integer from 1 to 10;
δ2 is each independently an integer of 1-9. ]
The surface treatment agent according to claim 1, which is a compound represented by. ^RE is
R ⁶¹ -R ^E3 -O _q2 -,
-R ⁶² _p2 -R ^E3 -O _q2 -
X ^E (R ⁶² _p2 -R ^E3 -O _q2 ) _r2
[In the formula:
each R ^E3 is independently a divalent polyoxyalkylene group;
R ⁶¹ is a hydrogen atom or a C _1-6 alkyl group;
R ⁶² is a C _1-6 alkylene group;
X ^E is a 3- to 10-valent group;
p2 is 0 or 1;
each q2 is independently 0 or 1;
r2 is an integer from 3 to 10; ]
The surface treatment agent according to claim 11, which is a group represented by. The polyoxyalkylene group-containing compound has the following formula (B1) or (B2):

[In the formula:
each R ^E1 is independently R ⁶¹ -R ^E3 -O _q2 -;
R ^E2 is -R ⁶² _p2 -R ^E3 -O _q2 -;
each R ^E3 is independently a divalent polyoxyalkylene group;
R ⁶¹ is a hydrogen atom or a C _1-6 alkyl group;
R ⁶² is a C _1-6 alkylene group;
p2 is 0 or 1;
each q2 is independently 0 or 1;
R ^T is each independently a hydrogen atom, a C _1-6 alkyl group, —OR ⁶⁵ , —SR ⁶⁵ , —NR ⁶⁵ ₂ , —COOR ⁶⁵ , —COR ⁶⁵ , —OCOR ⁶⁵ , —CONR ⁶⁵ , —NR ⁶⁵ COR ⁶⁵ , a C _3-16 cycloalkyl group, a C _5-16 aryl group, or a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is bonded;
each R ⁶⁵ is independently a hydrogen atom or a C _1-6 alkyl group;
each X ^B is independently a single bond or a divalent to decavalent organic group;
α2 is an integer from 1 to 9;
β2 is an integer from 1 to 9;
γ2 is each independently an integer of 1-9. ]
The surface treatment agent according to claim 11, which is a compound represented by. Each R ^E3 independently has the formula:
- (OR ⁶³ ) _a1 -
[In the formula,
R ⁶³ is a C _1-6 alkylene group,
a1 is an integer from 2 to 30; ]
The surface treatment agent according to claim 13, which is a group represented by. 12. The surface treating agent according to claim 11, wherein each R 1 ^T is independently a hydrogen atom, a C _1-6 alkyl group, a C _3-16 cycloalkyl group, or a C _5-16 aryl group. Each R ^T is independently -OR ⁶⁵ , -SR ⁶⁵ , -NR ⁶⁵ ₂ , -COOR ⁶⁵ , -COR ⁶⁵ , -OCOR ⁶⁵ , -CONR ⁶⁵ , -NR ⁶⁵ COR ⁶⁵ , or hydroxyl group, hydrolyzable 12. The surface treatment agent according to claim 11, which is a monovalent group containing a Si atom to which a group, a hydrogen atom or a monovalent organic group is bonded. 12. The surface treating agent according to claim 11, wherein each R ^T is independently a hydrogen atom or a hydroxyl group. 12. The surface treating agent according to claim 11, wherein each R ^T is independently a monovalent group containing a Si atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom or a monovalent organic group is bonded. 14. The surface treatment agent according to claim 13, wherein α2, β2, and γ2 are 1. Each X ^B is independently a single bond or the following formula:
-(R ⁵¹ ) _p5 -(X ⁵¹ ) _q5 -
[In the formula:
R ⁵¹ is a single bond, —(CH ₂ ) _s5 — or an o-, m- or p-phenylene group,
s5 is an integer from 1 to 20,
X ⁵¹ is -(X ⁵² ) _l5 -,
Each X ⁵² is independently —O—, —S—, o-, m- or p-phenylene group, —C(O)O—, —Si(R ⁵³ ) ₂ —, —(Si(R ⁵³ ) ₂ O) _m5 -Si(R ⁵³ ) ₂ -, -CONR ⁵⁴ -, -O-CONR ⁵⁴ -, -NR ⁵⁴ - and -(CH ₂ ) _n5 -, a group selected from the group consisting of
each R ⁵³ is independently a phenyl group, a C _1-6 alkyl group or a C _1-6 alkoxy group;
each R ⁵⁴ is independently a hydrogen atom, a phenyl group or a C _1-6 alkyl group;
m5 is each independently an integer of 1 to 100,
n5 are each independently an integer of 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 enclosed in parentheses with p5 or q5 is arbitrary;
The right side binds to ^RT . ]
The surface treatment agent according to claim 11, which is a divalent organic group represented by. 2. The surface of claim 1, wherein the surface is a two-component system comprising component (A): a first component comprising a fluoropolyether group-containing silane compound, and component (B): a second component comprising a polyoxyalkylene group-containing compound. Processing agent. The surface treating agent according to claim 1, wherein the content of component (B) is 0.1 to 30 parts by mass with respect to 100 parts by mass of component (A). 2. The surface treatment agent according to claim 1, further comprising one or more other components selected from fluorine-containing oils, silicone oils, alcohols, and catalysts. The surface treatment agent according to claim 1, further comprising a solvent. The surface treatment agent according to claim 1, which is used as an antifouling coating agent or a waterproof coating agent. Pellets containing the surface treatment agent according to any one of claims 1 to 25. An article comprising a substrate and a layer formed from the surface treatment agent according to any one of claims 1 to 25 on the substrate. 28. The article of claim 27, wherein said substrate is a glass substrate. 29. The article according to claim 28, which is an optical member.