Polyetherketones

Details Polyetherketones Polyetherketones

1989-02-23

1991-09-17

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528323, C08G 802, C08G 1400, C08G 6914

Patent

active

050496409

ABSTRACT:
Polymeric polyetherketones characterized by relatively high glass transition temperatures comprise moieties derived from a halo-substituted aryl ketone alternating with moieties derived from a hydroxyaryl-substituted 1,6-diaza [4.4] spirodilactam having the hydroxyaryl substituents on the spiro ring nitrogen atoms and, optionally, moieties derived from a di(hydroxyphenyl) compound.

REFERENCES:
patent: 4320224 (1982-03-01), Rose et al.
patent: 4885351 (1989-12-01), Wang
patent: 4886863 (1989-12-01), Wang
patent: 4889907 (1989-12-01), Wang
patent: 4906725 (1990-03-01), Wang

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