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:
Aug. 05, 1986
Filed:
Jan. 25, 1985
Applicant:
Inventors:
Wolfgang von Gentzkow, Kleinsendelbach, DE;
Maximilian Hodl, Munich, DE;
Wolfgang Kleeberg, Erlangen, DE;
Helmut Markert, Nuremberg, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08L / ;
U.S. Cl.
CPC ...
428209 ; 428210 ; 428268 ; 428273 ; 428285 ; 428418 ; 523455 ; 525486 ; 528 93 ;
Abstract
Improved printed circuit boards of laminated thermosetting sheets with epoxy resin as the bonding agent contain for inhibiting copper migration 0.1% to 10% N,N'-bis-salicyloyl hydrazine, based on the weight of the hardened epoxy resin.