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. 23, 2021
Filed:
Dec. 14, 2012
Mitsubishi Rayon Co., Ltd., Chiyoda-ku, JP;
Shinichirou Izumi, Toyohashi, JP;
Mitsuhiro Matsuo, Otake, JP;
Masahiko Morooka, Yokohama, JP;
Kazuyoshi Odaka, Toyohashi, JP;
Seiji Nushi, Chiyoda-ku, JP;
Kana Akeda, Toyohashi, JP;
Eri Kawai, Toyohashi, JP;
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Abstract
A cured product that is reduced in warping and has high hardness can be obtained from an active energy ray-curable resin composition which uses a methacrylic acid ester polymer that has an acid value of 50 mg KOH/g or less and a transition metal content of 1 ppm or less, while containing 80% by mole or more of a polymer that has a double bond-terminated structure represented by formula (1). (In formula (1), R represents an alkyl group, a cycloalkyl group or an aryl group.)