Polysiloxane-polylactone block copolymer modified thermostat com

Details Polysiloxane-polylactone block copolymer modified thermostat com Polysiloxane-polylactone block copolymer modified thermostat com

1990-02-27

1991-08-06

Kight, III, John

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

Synthetic resins

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

525476, 528 27, 523466, 523457, 523458, 523459, 523460, C08G 7742, C08G 8100

Patent

active

050378988

ABSTRACT:
A polysiloxane-modified epoxy-based encapsulation composition comprising an epoxy resin, a curing agent for the epoxy resin, a polylactone-polysiloxane block copolymer, and a filler is described. The powder molding compositions provide a low internal stress epoxy composition without significantly sacrificing T.sub.g.

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