TITLE: METHOD FOR MAKING CAST EPOXY RESIN BODIES AND EPOXY FORMULATION
THEREFOR
European Patent EP0077142
 B1

ABSTRACT:
Abstract not available for EP0077142
Abstract of corresponding document: US4374076
A method for making cast precision epoxy resin bodies and an epoxy
resin formulation for use therein, the epoxy resin formulation having
Component A consisting 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 and Component B consisting
essentially of partially hydrolyzed aryl tetracarboxylic acid
dianhydride, preferably partially hydrolyzed pyromellitic acid
dianhydride. In the preferred embodiments a tertiary amine catalyst is
also included. These components are mixed, just before use, in a ratio
of from 20 to 50 parts by weight Component B to each 100 parts by
weight Component A. To make the cast precision bodies such mixture is
cast in a mold of the shape desired, allowed to cure to a solid body
while in the mold, and thereafter heated to cause permanent expansion
thereof at least sufficient to compensate for any shrinkage occurring
during the casting and hardening thereof while in the mold.

INVENTORS:
Stephan, James E.
Boduch, Paul A.
Elverum, John A.

APPLICATION NUMBER: EP19820305081
PUBLICATION DATE: 04/16/1986
FILING DATE: 09/27/1982

ASSIGNEE: COORS PORCELAIN COMPANY
INTERNATIONAL CLASSES: C08G59/00; A61K6/087; A61K6/10; B29C39/00; B29C39/38; B29C39/40;
C08G59/38; C08G59/42; C08L63/00; (IPC1-7): C08G59/38; A61K6/08
EUROPEAN CLASSES: B29C39/00B2; B29C39/38; B29C39/40; C08G59/38; C08G59/42G