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:
Sep. 03, 2013
Filed:
Mar. 18, 2011
Applicants:
Yohko Sano, Tokyo, JP;
Mihoko Matsutani, Tokyo, JP;
Kazuyoshi Fujita, Tokyo, JP;
Inventors:
Assignee:
Sumitomo Bakelite Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 55/00 (2006.01); C08F 38/02 (2006.01); C08F 36/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An organic insulating material includes a prepolymer of a cage structure compound having a polymerizable unsaturated bond-containing group and a cage structure with an adamantane structure as the minimal unit. The prepolymer has a number-average molecular weight of between 2,000 and 500,000 based on polystyrene and measured by gel permeation chromatography. The prepolymer includes unsaturated bonds produced by reaction between the polymerizable unsaturated bonds and the unreacted polymerizable unsaturated bonds. The prepolymer has a residue rate of unreacted polymerizable unsaturated bonds of between 20% and 80%.