Abstract: The present invention relates to thermosetting resin compositions comprising (a) a first vinyl ester resin synthesized from the diglycidyl ether of bisphenol A, bisphenol A and glacial methacrylic acid, in from about 1% to about 95% by weight of the total composition; (b) a resin selected from the group consisting of (1) a second different vinyl ester synthesized from the diglycidyl ether of bisphenol A with glacial methacrylic acid, and (2) an unsaturated polyester, in from about 1% to about 69% by weight of the total composition; and electrical laminates made therefrom which further comprise a catalyst in from about 0.1% to about 2% by weight of the total composition and which may or may not be clad with an electrical conductive layer on at least one side; and a method of producing these.
Type:
Grant
Filed:
December 4, 1997
Date of Patent:
February 13, 2001
Assignee:
The Alpha Corporation of Tennessee
Inventors:
Scott Alan Lane, Thomas Edward Even, Timothy Wayne Austill, Philip Andrew Johnson
Abstract: Polyesters containing significant amounts of dicyclopentadiene are produced and used in emulsion form. Superior physical properties, including low linear shrinkage, are obtained.
Abstract: Polyesters containing significant amounts of dicyclopentadiene are produced and used in emulsion form. Superior physical properties, including low linear shrinkage, are obtained.