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:
Feb. 19, 2008
Filed:
Apr. 15, 2003
Daisuke Uchida, Tokyo, JP;
Masafumi Kawasaki, Tokyo, JP;
Yasuhiro Wakizaka, Tokyo, JP;
Atsushi Tsukamoto, Tokyo, JP;
Daisuke Uchida, Tokyo, JP;
Masafumi Kawasaki, Tokyo, JP;
Yasuhiro Wakizaka, Tokyo, JP;
Atsushi Tsukamoto, Tokyo, JP;
Zeon Corporation, Tokyo, JP;
Abstract
The invention provides a varnish that contains an insulting resin, a curing agent, a flame retardant, and an organic solvent. The flame retardant comprises flame retardant particles surface treated with at least one surface treatment agent selected from the group consisting of a phosphorus compound soluble in an organic solvent, an organosilicon compound and a dispersant having a carboxyl group. A formed material is obtained by applying and drying the varnish on a substrate. A multilayer structure is obtained by forming on a substrate having a conductor circuit layer an electrical insulation layer obtained by curing the formed material obtained from the varnish.