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US 5,206,335 AGranted
Selected poly(dianhydrides)
AssigneeOlin Corporation
InventorsBruce A. Marien, Keith O. Wilbourn
Life of this patent
Estimating the term…
Abstract
Poly(dianhydride) compounds having formulae (I) and (II): ##STR1## where m is 0 to 50. ##STR2## wherein n is 0 to 20 and X is bond junction, oxygen atom, sulfur atom, SO.sub.2, C(CF.sub.3), CO, C(CH.sub.3).sub.2, CF.sub.1 --O--CF.sub.2, CH.sub.2, and CHOH. The compounds are intermediates for certain resins.
Claims2
Poly(dianhydride) compounds having formulae (I) and (II):
- ##STR19## where m is 0 to 50. ##STR20## wherein n is 0 to 20 and X is bond junction, oxygen atom, sulfur atom, SO.sub.2, C(CF.sub.3), CO, C(CH.sub.3).sub.2, CF.sub.2 --O--CF.sub.2, CH.sub.2, and CHOH.
Dependencies are inferred from the claim text.