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

1989-12-27

1992-04-07

Ziegler, Jacob

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 50, 264 53, 264101, 264102, 264143, 26421123, 264321, 525132, 525905, B29C 4776, C08L 7112

Patent

active

051025914

ABSTRACT:
A method for removing volatile substances from polyphenylene ether (PPE) resin blends in an extruder comprising adding a second thermoplastic resin downstream from the PPE feedport and one stage of water injection followed by vacuum venting is disclosed.

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patent: 3633880 (1972-01-01), Nemark
patent: 3742093 (1973-06-01), Skidmore
patent: 4369278 (1983-01-01), Kasahara et al.
patent: 4504338 (1985-03-01), Ives
patent: 4746482 (1988-05-01), Ribbing et al.
patent: 4806297 (1989-02-01), Brown et al.
patent: 4831115 (1989-05-01), Golba, Jr. et al.
patent: 4992222 (1991-02-01), Banevicius et al.

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