The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 1991
Filed:
Feb. 26, 1990
Applicant:
Inventors:
John E Hallgren, Scotia, NY (US);
Victoria J Eddy, Schenectady, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
525396 ; 525524 ; 525527 ;
Abstract
Upstaged compositions are prepared by the reaction in the presence of a triarylphosphine catalyst between at least one bisphenol polyglycidyl ether, at least one epoxidized novolak and at least one brominated bisphenol. They may be used for the preparation of resinous blends with polyphenylene ethers, which, in combination with further components, may be used in the preparation of laminates useful as printed circuit boards and having excellent physical and electrical properties.