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. 18, 2015
Filed:
Feb. 05, 2013
Showa Denko K.k., Minato-ku, Tokyo, JP;
Nobuyuki Takahashi, Minato-ku, JP;
Yoshifumi Urakawa, Minato-ku, JP;
Hideo Miyata, Minato-ku, JP;
Shigeru Yamaki, Minato-ku, JP;
SHOWA DENKO K.K., Tokyo, JP;
Abstract
A curable composition includes (A) silica fine particles surface-modified with at least one silane compound including at least (A1) a polymerizable silane compound of the general formula (1), (B) a (meth)acrylate compound, and (C) a polymerization initiator,SiRRR(OR)  (1)wherein Ris a C11-20 hydrocarbon group having an ethylenic unsaturated group, or a substituted C11-20 hydrocarbon group having an ethylenic unsaturated group and having an ether bond and/or an ester bond; Ris a hydrogen atom or a C1-4 hydrocarbon group; Ris a halogen atom; Ris a hydrogen atom or a C1-10 hydrocarbon group; a is an integer of 1 to 3; b is an integer of 0 to 2; c is an integer of 0 to 3; the sum of a and b is 1 to 3; the sum of a, b and c is 1 to 4.