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:
Oct. 11, 2016
Filed:
Apr. 05, 2012
Atsushi Kameyama, Tokyo, JP;
Takashi Suzuki, Tokyo, JP;
Ryuichi Ueno, Tokyo, JP;
Isao Ishikura, Tokyo, JP;
Atsushi Kameyama, Tokyo, JP;
Takashi Suzuki, Tokyo, JP;
Ryuichi Ueno, Tokyo, JP;
Isao Ishikura, Tokyo, JP;
JX NIPPON OIL & ENERGY CORPORATION, Tokyo, JP;
Abstract
A resin composition prepared by blending an epoxy compound represented by the following formula (1), an acid anhydride, and a curing accelerator, wherein the epoxy compound is purified in such a way that, in a chromatogram obtained by gas chromatographic analysis, a ratio of a peak area B of peaks derived from a heavier molecular mass portion having longer retention times than the epoxy compound to a peak area A of peak(s) derived from the epoxy compound B/A is 2.0×10or less. [In the formula, R, R, R, R, R, R, R, R, R, R, R, and Reach independently represent a hydrogen atom, a halogen atom, an alkyl group which may have a substituent, or an alkoxy group which may have a substituent.].