Aromatic polymers having phenylene groups linked by oxygen atoms

Details Aromatic polymers having phenylene groups linked by oxygen atoms Aromatic polymers having phenylene groups linked by oxygen atoms

1979-01-23

1980-01-29

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528128, 528174, C08G 6540, C08G 7523

Patent

active

041862627

ABSTRACT:
Copolymers containing 40 to 90 mole % of repeat units ##STR1## and correspondingly 10 to 60 mole % of repeat units ##STR2## where Q and Q' are --SO.sub.2 -- or --CO-- and the number of --SO.sub.2 -- groups is 3 to 25% of the total number of --SO.sub.2 -- and --CO-- groups.

REFERENCES:
patent: T966006 (1978-01-01), Freeman et al.
patent: 4010147 (1977-03-01), Rose
patent: 4036815 (1977-07-01), Feasey et al.
patent: 4052365 (1977-10-01), Jones
patent: 4105635 (1978-08-01), Freeman
patent: 4105636 (1978-08-01), Taylor
patent: 4113698 (1978-09-01), Staniland
patent: 4113699 (1978-09-01), Rose et al.

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