Aromatic etherketone/sulphone copolymers

Details Aromatic etherketone/sulphone copolymers Aromatic etherketone/sulphone copolymers

1983-06-15

1984-05-01

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528174, C08G 6540

Patent

active

044462948

ABSTRACT:
Amorphous aromatic etherketone/sulphone copolymers, normally of reduced viscosity.gtoreq.0.8, containing 15 to 70 mole % (preferably 20 to 60 mole %) of repeat units of formula ##STR1## and correspondingly 85 to 30 mole % (preferably 80 to 40 mole %) of repeat units of formula ##STR2##

REFERENCES:
patent: 3886120 (1975-05-01), Yagi et al.
patent: 4108837 (1978-08-01), Johnson et al.
patent: 4113698 (1978-09-01), Staniland
patent: 4268650 (1981-05-01), Rose
patent: 4296217 (1981-10-01), Stuart-Webb
patent: 4320222 (1982-03-01), Rose et al.
patent: 4320224 (1982-03-01), Rose et al.
patent: 4331798 (1982-05-01), Staniland
patent: 4339568 (1982-07-01), Maresca

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