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:
Jan. 29, 2013
Filed:
Apr. 30, 2008
Katsuhiko Funaki, Sunnyvale, CA (US);
Etsuo Ohkawado, Chiba, JP;
Kousuke Hirota, Urayasu, JP;
Syuji Tahara, Ichihara, JP;
Katsuhiko Funaki, Sunnyvale, CA (US);
Etsuo Ohkawado, Chiba, JP;
Kousuke Hirota, Urayasu, JP;
Syuji Tahara, Ichihara, JP;
Mitsui Chemicals, Inc., Minato-Ku, Tokyo, JP;
Abstract
The invention provides a resin composition which develops excellent flame retardance after curing in spite of its being free from halogen-containing compounds and antimony compounds, which are liable to cause environmental load, and which can give a film meeting the recent sever demands for higher flexing resistance and insulation reliability. Specifically, the invention provides a resin composition which comprises (A) a polyimide precursor and (B) an adduct of an organophosphorus compound represented by formula (1) with a compound having four or more (meth)acrylate groups. It is preferable that the resin composition further contain (C) a phosphazene compound.