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:
Mar. 01, 2011
Filed:
Jun. 16, 2008
Applicants:
Franz Tikart, Erlenbach, DE;
Karl-heinz Leis, Weilbach, DE;
Karl Walter Kopp, Reinheim, DE;
Inventors:
Assignee:
Isola USA Corp., Chandler, AZ (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/38 (2006.01); C08L 25/08 (2006.01); C08L 63/02 (2006.01); H05K 1/03 (2006.01);
U.S. Cl.
CPC ...
Abstract
A composition useful as an impregnant for the making of laminates for printed wiring boards comprises a FR4 epoxy resin which is a bisphenol A epoxy resin advanced with tetrabromobisphenol A, a crosslinking agent of a strene-maleic anhydride copolymer and a co-crosslinking agent is an optionally brominated bisphenol A and/or an optionally brominated bisphenol A diglycidyl ether.