Process for incorporation of expoxidized polydienes into epoxy r

Details Process for incorporation of expoxidized polydienes into epoxy r Process for incorporation of expoxidized polydienes into epoxy r

1996-07-03

1998-02-24

Gulakowski, Randy

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

Synthetic resins

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

525107, 525524, 525529, 525901, C08L 5300

Patent

active

057213160

ABSTRACT:
A process for incorporation of epoxidized polydienes into aromatic epoxy resins which comprises (a) blending the epoxidized polydiene into a curing agent in a ratio of 1:20 to 1:4, (b) reacting the epoxidized polydiene and a curing agent at a temperature of from 100.degree. to 150.degree. C. over a time from 10 to 100 minutes, (c) mixing the pre-reacted epoxidized polydiene and curing agent with the aromatic epoxy resin and accelerator, and (d) curing the aromatic epoxy resin by heating the full mixture of paragraph (c) to a temperature of from 110.degree. to 170.degree. C. for from 2 to 6 hours.

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