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. 29, 2012
Filed:
Jun. 09, 2005
Kazuhiro Oshima, Shibukawa, JP;
Tomoyuki Kanai, Shibukawa, JP;
Kunio Iriuchijima, Shibukawa, JP;
Denki Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided are a temporal fixation method in processing of optical members and a resin composition suitable therefor. The present invention provides a composition which is characterized by comprising (A1): a (meth)acrylate with a molecular weight of at least 500 having at least one (meth)acryloyl group at a terminal or in a side chain of a molecule, (B1): a polyfunctional (meth)acrylate, (C1): a (meth)acrylate other than (A1) and (B1), and (D1): a photopolymerization initiator. The invention also provides a method for temporarily fixing a member, characterized by comprising bonding a member to temporarily fix it with use of the composition, processing the temporarily fixed member, and immersing the processed member in warm water of at most 90° C., thereby removing a cured resin of the composition.