Polyepoxide resins incorporating epoxy terminated urethanes as t

Details Polyepoxide resins incorporating epoxy terminated urethanes as t Polyepoxide resins incorporating epoxy terminated urethanes as t

1994-09-21

1996-01-02

Krass, Frederick

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

525504, 525526, C08G 1858

Patent

active

054809584

ABSTRACT:
This invention relates to improved one part polyepoxide resins which are tough and have enhanced flexible and elastic properties. The polyepoxide resins comprise a polyepoxide resin based on a polyglycidyl ether of a phenol, an oxazolidone toughener and a latent amine curative. The improvement in the polyepoxide resin formulation comprises incorporating an oxazolidone toughener represented by the formula: ##STR1## wherein R is the residue of an aliphatic glycol or aliphatic ether glycol having from 2 to 20 carbon atoms.

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patent: 5112932 (1992-05-01), Koenig et al.

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