# US 11,299,629 B2 · Silane-modified polyphenylene ether resin and preparation method thereof

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- Number: US 11,299,629 B2
- Document ID: US11299629B2
- Status: Granted
- Kind: B2
- Application number: 16/997,905
- Filed: 2020-08-19
- Published: 2021-02-25
- Granted: 2022-04-12
- Earliest claimed: 2019-08-21
- Assignees: Prior Company Limited
- Applicants: Prior Company Limited
- Inventors: Hong-Hsin Wu; Po-Cheng Chang; Ying-Chen Chen; Cheng-Hsin Tsai
- Web page: https://patentgrep.com/patent/US11299629B2

## CPC

- C08L 71/123: {not modified by chemical after-treatment}
- C08L 83/12: containing polyether sequences
- C08G 65/485: {Polyphenylene oxides}
- C08G 77/442: containing vinyl polymer sequences
- C08G 77/46: containing polyether sequences
- C08G 2650/20: Cross-linking
- C08G 2650/36: Pre-polymer
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

## Abstract

A silane-modified polyphenylene ether resin and a preparation method thereof are provided. A polyphenylene ether resin having hydroxyl groups at both ends is reacted with a silane having at least one alkoxy group and at least one vinyl group at the end, so as to obtain the silane-modified polyphenylene ether resin with a vinyl group at the end.

## Claims

### Claim 1

A preparation method of silane-modified polyphenylene ether resin, comprising utilizing a polyphenylene ether resin with hydroxyl groups at both ends to react with a silane, and under reaction with a catalyst, which obtains the silane-modified polyphenylene ether resin, a synthesis reaction formula of which is represented by reaction formula (1):
wherein in reaction formula (1), R1, R2, R3 and R4 are each independently hydrogen, a linear or branched C1 to C6 alkyl group, R5, R6, R7 and R8 are each independently hydrogen, a linear or branched C1 to C6 alkyl group, R9 is a linear or branched C1 to C6 alkyl group or aryl group, R10 is hydrogen or a C1 to C6 alkyl group, R11 is a functional group with a crosslinkable double bond, Y is a linear, branched or cyclic C1 to C10 alkyl group, W is an integer from 1 to 4, a and b are each independently an integer from 0 to 50, and n and m are each independently an integer from 1 to 4,
wherein the catalyst is ethyl triphenyl phosphine chloride (ETPPCl), ethyltriphenylphosphonium bromide (ETPPBr), ethyl triphenyl phosphine iodide (ETPPI), ethyl triphenyl phosphine acetate (ETPPAAc), tetrabutylammonium bromide (TBAB), triphenyl phosphine (TPP) or tetra-n-butyl ammonium acetate (TBAAc).

### Claim 2 (depends on 1)

The preparation method of silane-modified polyphenylene ether resin according to claim 1, wherein the functional group with the crosslinkable double bond comprises an allyl group, a vinyl group, an acrylate group or a methacrylate group.

### Claim 3 (depends on 1)

The preparation method of silane-modified polyphenylene ether resin according to claim 1, wherein the functional group with the crosslinkable double bond comprises a C1 to C4 alkylacrylate group, a C1 to C4 alkyl vinyl group or a C1 to C3 methacryloxyalkyl group.

### Claim 4 (depends on 1)

The preparation method of silane-modified polyphenylene ether resin according to claim 1, wherein a reaction temperature of reaction formula (1) is 100° C. to 160° C., and a reaction time is 6 hours to 20 hours.