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:
May. 04, 2010
Filed:
Apr. 16, 2004
Yuichi Ito, Sodegaura, JP;
Satoru Suda, Sodegaura, JP;
Yasushi Mizuta, Sodegaura, JP;
Katsunori Nishiura, Sodegaura, JP;
Toshikazu Gomi, Sodegaura, JP;
Yuichi Ito, Sodegaura, JP;
Satoru Suda, Sodegaura, JP;
Yasushi Mizuta, Sodegaura, JP;
Katsunori Nishiura, Sodegaura, JP;
Toshikazu Gomi, Sodegaura, JP;
Mitsui Chemicals, Inc., Minato-Ku, Tokyo, JP;
Abstract
The invention provides a cation polymerizable resin composition excellent in curing properties and corrosion resistance with less resin coloration and less cure shrinkage, which is a material suitable as a surface protective material for optical disk. Specifically, the cation polymerizable resin composition comprises an epoxy compound (A) as an essential ingredient represented by formula 1 wherein Rand Reach represent a saturated or unsaturated carbon atom, and Rrepresents a hydrogen atom or a saturated or unsaturated carbon atom, a cation polymerizable compound (B) other than the epoxy compound represented by formula 1, a photo cation polymerization initiator (C) and a photo radical polymerization initiator (D).