Heterocycle oligomer blends

Details Heterocycle oligomer blends Heterocycle oligomer blends

1988-12-16

1991-11-19

Hoke, Veronica P.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428394, 524 83, 524 89, 524494, 525420, 525435, C08K 340

Patent

active

050665413

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## (or isomers thereof) wherein M=--CO--, --S--, --O--, --SO.sub.2 -- or --(CF.sub.3).sub.2 C--; and

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patent: 4661604 (1987-04-01), Lubowitz et al.
patent: 4739030 (1988-04-01), Lubowitz et al.
A. H. Frazer: The High Temperature Resistant Polymers, 138-213 (1968).

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