Epoxy-functionalized polyphenylene ethers of low gel content, me

Details Epoxy-functionalized polyphenylene ethers of low gel content, me Epoxy-functionalized polyphenylene ethers of low gel content, me

1992-02-25

1993-05-25

Seidleck, James J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

524490, 525 63, 525391, 525396, 525905, C08F28308, C08L 2502, C08L 7112

Patent

active

052140997

ABSTRACT:
Epoxy-functionalized polyphenylene ethers are prepared by melt blending a polyphenylene ether with glycidyl acrylate in the presence of a lubricant such as at least one hydrogenated poly-.alpha.-olefin. The blending reaction takes place at a temperature in the range of about 250.degree.-300.degree. C., and the amount of glycidyl acrylate employed is about 2.5-5.0% by weight based on polyphenylene ether. The products are characterized by a gel content of less than 5% by weight. They form copolymer-containing compositions having excellent properties upon melt blending with linear polyesters such as poly(butylene terephthalate).

REFERENCES:
patent: 4870123 (1989-09-01), Nelson
patent: 4870124 (1989-09-01), Nelson
patent: 4994525 (1991-02-01), Brown et al.
patent: 4994531 (1991-02-01), Brown et al.
patent: 5015698 (1991-05-01), Sybert et al.

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