Method for removing volatile substances from polyphenylene ether

Details Method for removing volatile substances from polyphenylene ether Method for removing volatile substances from polyphenylene ether

1990-10-31

1993-04-20

Thurlow, Jeffery

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

Synthetic resins

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

264 459, 264101, 525905, C08L 7112

Patent

active

052044106

ABSTRACT:
Volatile substances in polyphenylene ether or polyphenylene ether/polystyrene compositions are substantially reduced by extruding the resins in a single pass using a plurality of stages comprising water injection and vacuum venting.

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patent: 4806297 (1989-02-01), Brown et al.
patent: 4902455 (1990-02-01), Wobbe
patent: 5102591 (1992-04-01), Hasson et al.

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