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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.:

US 9182527 B1

PDFFull Text
Date of Patent:
Nov. 10, 2015

Filed:

Oct. 19, 2012

Method for producing optical member and use of uv-curable resin composition therefor

Applicant:

Nippon Kayaku Kabushiki Kaisha, Chiyoda-ku, Tokyo, JP;

Inventors:

Daisuke Kobayashi, Tokyo, JP;

Hayato Motohashi, Tokyo, JP;

Yuichiro Matsuo, Tokyo, JP;

Assignee:

Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;

Attorney:

Nields, Lemack & Frame, LLC

Primary Examiner:

Ling Choi

Assistant Examiner:

Jessica E Whiteley

Int. Cl.
CPC ...
C08F 2/46 (2006.01); C08G 61/04 (2006.01); G02B 5/20 (2006.01); B32B 7/12 (2006.01); C08G 18/48 (2006.01); C08G 18/75 (2006.01); C08F 290/06 (2006.01); C09J 4/06 (2006.01); C09J 175/16 (2006.01); G06F 3/041 (2006.01); C09D 175/16 (2006.01); B32B 38/00 (2006.01); B32B 37/24 (2006.01);
U.S. Cl.
CPC ...
G02B 5/208 (2013.01); B32B 7/12 (2013.01); C08F 290/067 (2013.01); C08G 18/4825 (2013.01); C08G 18/755 (2013.01); C09D 175/16 (2013.01); C09J 4/06 (2013.01); C09J 175/16 (2013.01); G06F 3/041 (2013.01); G06F 3/0412 (2013.01); B32B 2037/243 (2013.01); B32B 2038/0076 (2013.01); B32B 2307/40 (2013.01); B32B 2310/0831 (2013.01); B32B 2457/20 (2013.01); G02F 2202/28 (2013.01); G06F 2203/04103 (2013.01);
Abstract

The present invention relates to a method for producing an optical member wherein an optical substrate having a light-blocking part on the surface is bonded to an optical substrate for bonding. The method for producing an optical member uses a UV-curable resin composition and comprises specific (Process 1) through (Process 3). The present invention also relates to the use of a UV-curable resin composition comprising a (meth)acrylate (A) and a photopolymerization initiator (B) for the production method, and a UV-curable resin composition. It is possible to produce a bonded optical member having good curability and adhesiveness, such as a touch panel or display unit having an optical substrate comprising a light-blocking part, with good productivity but with little damage to the optical substrate. It is thereby possible to obtain an optical member having a high degree of resin curing at the light-blocking part and high reliability.

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