Paste anhydride curing system for cast epoxy resin bodies and me

Details Paste anhydride curing system for cast epoxy resin bodies and me Paste anhydride curing system for cast epoxy resin bodies and me

1986-02-18

1987-04-14

Nielsen, Earl

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

Synthetic resins

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

433213, 26433112, 264236, C08L 6304

Patent

active

046579923

ABSTRACT:
The instant invention provides a method for making a cast epoxy resin body and the epoxy formulation therefor wherein the formulation includes a two part system. Component A of the system when mixed with Component B in a ratio of 10 to 40 parts of Component B to 100 parts of Component A undergoes a polymerization reaction to form the solid body. Component A consists essentially of from 40 to 70% by weight epoxy novolac polymer, from 30 to 50% by weight vinyl 3-cyclohexene diepoxide and from 0 to 20% by weight 3,4 epoxy cyclohexylmethyl-3,4-epoxy cyclohexane carboxylate. Component B of the system is a paste anhydride consisting essentially of a mixture of a partially hydrolyzed aryl tetracarboxylic acid dianhydride and an alicylic dicarboxylic anhydride.

REFERENCES:
patent: 3932343 (1976-01-01), Barie
patent: 4374076 (1983-02-01), Stephan et al.
patent: 4544432 (1985-10-01), Foister et al.

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