Process for the production of aromatic polyether ketones

Details Process for the production of aromatic polyether ketones Process for the production of aromatic polyether ketones

1990-02-26

1991-10-01

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528126, 528128, 528174, 528175, 528176, 528196, 528206, C08G 802, C08G 1400, C08G 6534

Patent

active

050534777

ABSTRACT:
The present invention relates to a process for the production of high molecular weight crystalline aromatic polyether ketones from an aromatic dihydroxy compound and an aromatic dihalogeno compound which contains a keto group, characterized in that N-C1-C5 alkyl caprolactam solvents and a mixture of alkali metal compounds consisting of at least one alkali metal carbonate and at least one compound selected from alkali metal hydroxides, bicarbonates, fluorides, hydrides, alkoxides (e.g. methylates or ethylates) and alkylates (e.g. ethyls or butyls) are used.

REFERENCES:
patent: 4661581 (1987-04-01), Nozawa et al.
patent: 4703102 (1987-09-01), Fukuoka et al.
patent: 4804735 (1989-02-01), Fukawa et al.
patent: 4954604 (1990-09-01), Genz et al.

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