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:
Jul. 12, 1994
Filed:
Dec. 13, 1991
Applicant:
Inventors:
Shigeki Naitoh, Ibaraki, JP;
Yasuhisa Saito, Ibaraki, JP;
Yasuhiro Hirano, Ibaraki, JP;
Kazuo Takebe, Ibaraki, JP;
Kunimasa Kamio, Ibaraki, JP;
Youichi Ueda, Ibaraki, JP;
Assignee:
Sumitomo Chemical Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564430 ;
Abstract
A thermosetting resin composition useful for a copper-clad laminate is provided, which comprise (A) an aromatic diamine compound represented by the following formula: ##STR1## wherein Ar is a divalent aromatic residue, and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each is an allyl group or a hydrogen atom but at least one of them is an allyl group, and (B) a polymaleimide compound having two or more maleimide groups in a molecule thereof.