Aromatic polymers

Details Aromatic polymers Aromatic polymers

1976-08-13

1981-05-19

Taylor, Hosea E.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525534, 525905, C08G 6538

Patent

active

042686350

ABSTRACT:
Block copolymers are prepared by heating at above 250.degree. C. (i) a halophenate, (ii) dihalobenzenoid compound plus bisphenate, and/or (iii) a polymer formed from (i) or (ii) having at least one phenate end group, said halophenate and/or dihalobenzenoid compound containing SO.sub.2 groups ortho or para to the halogen atoms, in the presence of a suspension of a crystalline polyetherketone or etherketone/sulphone copolymer.

REFERENCES:
patent: 3441538 (1969-04-01), Marks
patent: 3634355 (1972-01-01), Barr et al.
patent: 3764583 (1973-10-01), Newton et al.
patent: 3928295 (1975-12-01), Rose
patent: 4008203 (1977-02-01), Jones
patent: 4010147 (1977-03-01), Rose
patent: 4036815 (1977-07-01), Feasey et al.

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