Preparation of polyaryl ether ketones by electrophilic polyconde

Details Preparation of polyaryl ether ketones by electrophilic polyconde Preparation of polyaryl ether ketones by electrophilic polyconde

1990-02-15

1992-06-16

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528126, 528128, 528172, 528174, 528219, 528353, C08G 802, C08G 7500, C08G 6926

Patent

active

051225883

ABSTRACT:
Polyaryl ether ketones which contain units of the formula ##STR1## are prepared by electrophilic polycondensation in an inert solvent in the presence of a Lewis acid and in the presence or absence of a Lewis base using a carbonyl halide as monomer component, said carbonyl halide being an oxalyl dihalide or a mixture thereof with another carbonyl halide.

REFERENCES:
patent: 3441538 (1969-04-01), Marks
patent: 3442857 (1969-05-01), Thornton
patent: 3953400 (1976-04-01), Dahl
patent: 4186262 (1980-01-01), Freeman et al.
patent: 4636557 (1987-01-01), Deckers
patent: 4820790 (1989-04-01), Winslow et al.
patent: 4870153 (1989-09-01), Matzner et al.

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