Process for isolation of polyphenylene ether resin by crumbing i

Details Process for isolation of polyphenylene ether resin by crumbing i Process for isolation of polyphenylene ether resin by crumbing i

1978-11-06

1981-04-21

Lee, Lester L.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528212, 528485, 528487, 528488, 528491, 528492, 528495, 528499, 528500, C08G 6544, C08G 6546

Patent

active

042634261

ABSTRACT:
An improved method is provided for the recovery of a friable crumb-form of resinous compositions comprising polyphenylene ethers. The method comprises polymerization of a monohydric phenol, removal of the catalyst employed, heating, I.V. stabilization, optionally, capping, and product recovery.

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