Curing polyester or polycarbonate and polyepoxide with polyorgan

Details Curing polyester or polycarbonate and polyepoxide with polyorgan Curing polyester or polycarbonate and polyepoxide with polyorgan

1991-04-23

1993-01-26

Sellers, Robert E.

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

Synthetic resins

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

525463, C08L 6302, C08L 6304, C08L 6702, C08L 6900

Patent

active

051823446

ABSTRACT:
Thermoformable, thermosettable resins essentially free of secondary alcohol groups are obtained by reaction of oxiranes in active hydrogen-free polyepoxide with carboxylate and/or carbonate groups in active hydrogen-free aryl polyesters, polycarbonates or copolyestercarbonates in the presence of catalytically effective amounts of certain polyorgano phosphonium or phosphine iminium salts.

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