Fluoropolyether-containing polymers

A technology of polymers and fluoropolyethers, which is applied in the field of polymers containing fluoropolyethers, can solve the problems of lack of weather resistance, achieve excellent water/oil repellency, and maintain antifouling effects

Active Publication Date: 2018-11-02
SHIN ETSU CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When treated with this fluorooxyalkylene-containing polymer-modified silane, the lubricity, mold release and abrasion resistance of the lens or anti-reflective coating are improved, but the weather resistance is lacking

Method used

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  • Fluoropolyether-containing polymers
  • Fluoropolyether-containing polymers
  • Fluoropolyether-containing polymers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0131] 150 g of tetrahydrofuran and 300 g of 1,3-bistrifluoromethylbenzene were charged into the reactor, and 160 ml of 0.7M allylmagnesium bromide was added dropwise thereto. Next, slowly add 300g (4.8×10- 2 mol) a compound of the following formula (I).

[0132]

[0133] pl:q1=47:53, pl+q1≈43

[0134] The resulting solution was heated at 60 °C for 4 hours. It was then cooled to room temperature and added dropwise to 300 g of 1.2M aqueous hydrochloric acid to terminate the reaction. The lower layer or fluorine compound layer was recovered by separation operation and washed with acetone. The washed lower layer or fluorochemical layer is recovered again. The residual solvent was distilled off in vacuo to obtain 292 g of a fluoropolyether-containing polymer of the following formula (II).

[0135]

[0136] p1:q1=47:53, p1+q1≈43

[0137] use 1 The polymer was analyzed by H-NMR, and the results are shown below.

[0138] 1 H-NMR

[0139] δ2.2(-CO H (CH 2 CH=CH 2 ) ...

Embodiment 2

[0144] 150 g of tetrahydrofuran and 300 g of 1,3-bistrifluoromethylbenzene were charged into the reactor, and 320 ml of 0.7M allylmagnesium bromide was added dropwise thereto. Next, slowly add 300g (9.6×10- 2 mol) a compound of the following formula (III).

[0145]

[0146] pl:qI=47:53, pl+q1≈43

[0147] The resulting solution was heated at 60 °C for 4 hours. It was then cooled to room temperature and added dropwise to 300 g of 1.2M aqueous hydrochloric acid to terminate the reaction. The lower layer or fluorine compound layer was recovered by separation operation and washed with acetone. The washed lower layer or fluorochemical layer is recovered again. The residual solvent was distilled off in vacuo to obtain 286 g of a fluoropolyether-containing polymer of the following formula (IV).

[0148]

[0149] pl:q1=47:53, pl+q1≈43

[0150] use 1 The polymer was analyzed by H-NMR, and the results are shown below.

[0151] 1 H-NMR

[0152] δ2.2(-CO H (CH 2 CH=CH 2 ...

Embodiment 3

[0157] 150 g of tetrahydrofuran and 300 g of 1,3-bistrifluoromethylbenzene were charged into the reactor, and 160 ml of 0.7M allylmagnesium bromide was added dropwise thereto. Next, slowly add 300g (4.8×10 -2 mol) a compound of the following formula (V).

[0158]

[0159] The resulting solution was heated at 60 °C for 4 hours. It was then cooled to room temperature and added dropwise to 300 g of 1.2M aqueous hydrochloric acid to terminate the reaction. The lower layer or fluorine compound layer was recovered by separation operation and washed with acetone. The washed lower layer or fluorochemical layer is recovered again. The residual solvent was distilled off in vacuo to obtain 277 g of a fluoropolyether-containing polymer of the following formula (VI).

[0160]

[0161] use 1 The polymer was analyzed by H-NMR, and the results are shown below.

[0162] 1 H-NMR

[0163] δ2.2(-CO H (CH 2 CH=CH 2 ) 2 )1H

[0164] δ2.3(-COH(C H 2 CH=CH 2 ) 2 )4H

[0165] δ...

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Abstract

The fluoropolyether-containing polymer of formula (1) is novel, wherein Rf is a polymer residue containing a 1-valent fluorooxyalkylene or a 2-valent fluorooxyalkylene group, Z is a 2-valent hydrocarbon group, and α is 1 or 2. This polymer can be converted into a polymer-modified silane containing a fluoropolyether that forms a weather resistant water / oil repellent coating.

Description

[0001] Cross References to Related Applications [0002] This non-provisional application claims priority under 35 U.S.C. §119(a) to Patent Application No. 2014-074126 filed in Japan on March 31, 2014, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to fluoropolyether-containing polymers which can be converted into fluoropolyether-containing polymer-modified silanes having weather resistance. Background technique [0004] In general, perfluorooxyalkylene-containing compounds exhibit excellent water / oil repellency, chemical resistance, lubricity, mold release, stain resistance, and other properties due to their extremely low surface free energy. Utilizing these properties, it is widely used as a water / oil repellent antifouling agent for paper and fabrics, a lubricant for magnetic recording media, an oil repellant for precision equipment, a release agent, a cosmetic ingredient, a protective film, etc. in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/00
CPCC08G65/007C08G65/332C08G65/3322C08G2650/02C08G2650/48C08G65/005
Inventor 酒匂隆介
Owner SHIN ETSU CHEM CO LTD
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