Polyphenylene ether modified by reaction with cresol novolac...

Details Polyphenylene ether modified by reaction with cresol novolac... Polyphenylene ether modified by reaction with cresol novolac...

2006-07-06

2008-10-21

Sellers, Robert (Department: 1796)

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

Synthetic resins

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

Reexamination Certificate

active

07439310

ABSTRACT:
The present invention can provide a resin composition comprising epoxy-modified polyphenylene ethers which show good solubility in MEK or acetone which has been conventionally used in a manufacturing process for printed boards of epoxy resins, and has high heat resistance originating from polyphenylene ethers. Specifically, the resin composition of the present invention contains (C) an epoxy-modified polyphenylene ether obtained by reacting (A) a polyphenylene ether having a content of volatile components of 0.1-5.0% by weight and a number of average molecular weight of 500 or more and less than 1.0×104and (B) a cresol-novolac type epoxy resin at a modification ratio of component (A) of 5-95%, wherein (B′) a cresol-novolac type epoxy resin is contained in an amount of 10-900 parts by weight based on 100 parts by weight of the total of the reaction products (C), and (A′) a polyphenylene ether.

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