Heterocycle sulfone oligomers and blends

Details Heterocycle sulfone oligomers and blends Heterocycle sulfone oligomers and blends

1987-11-17

1989-09-19

Hoke, Veronica P.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

524494, 524495, 528289, 528298, 528322, 5283291, 548156, 548220, 548328, 548431, 548435, 548476, 548547, C08F 7532, C08F 7322, C07D40314, C07D41314, C07D41714

Patent

active

048682705

ABSTRACT:
High thermal stabilities are achievable in linear or multidimensional sulfone, solvent resistant oligomers by incorporating oxazole, thiazole, or imidazole linkages into the oligomer backbone. Blended oligomers of crosslinking oligomers and noncrosslinking compatible polymers are also described. The oligomers include residues of four-functional compounds of the formula: ##STR1## wherein M=--CO--, --S--, --O--, --SO.sub.2 -- or --(CF.sub.3).sub.2 C--; and

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