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

1988-12-29

1991-02-12

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

159 22, 264 50, 264 53, 264101, 264143, 26421123, 264321, 264349, B29C 4776

Patent

active

049922220

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 including water injection and vacuum venting.

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