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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 10604617 B1

PDFFull Text
Date of Patent:
Mar. 31, 2020

Filed:

Oct. 06, 2017

Curable composition for lens, lens and optical device

Applicant:

Daicel Corporation, Osaka-shi, Osaka, JP;

Inventors:

Takeshi Fujikawa, Himeji, JP;

Takashi Kubo, Tokyo, JP;

Assignee:

DAICEL CORPORATION, Osaka-Shi, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Mathieu D Vargot

Int. Cl.
CPC ...
C08G 59/38 (2006.01); B29D 11/00 (2006.01); C08G 59/24 (2006.01); G02B 3/08 (2006.01); G02B 1/04 (2006.01); C08G 59/30 (2006.01); C08G 59/32 (2006.01); C08G 59/68 (2006.01); C08G 59/02 (2006.01); B29C 45/00 (2006.01);
U.S. Cl.
CPC ...
C08G 59/38 (2013.01); B29C 45/0001 (2013.01); B29D 11/00269 (2013.01); B29D 11/00298 (2013.01); B29D 11/00307 (2013.01); C08G 59/027 (2013.01); C08G 59/24 (2013.01); C08G 59/30 (2013.01); C08G 59/3281 (2013.01); C08G 59/687 (2013.01); G02B 1/041 (2013.01); G02B 3/08 (2013.01);
Abstract

Provided is a curable composition capable of giving a lens that has excellent transfer accuracy from a mold and offers heat resistance and optical properties at excellent levels. The curable composition according to the present invention for lens formation contains a cycloaliphatic epoxide (A) represented by Formula (a), a cationic-polymerization initiator (B), and a polysiloxane (C) represented by Formula (c). The curable composition contains the polysiloxane (C) in an amount of 0.01% to 5% by weight based on the total amount of the curable composition. The curable composition according to the present invention for lens formation may further contain a siloxane compound (D) containing two or more epoxy groups per molecule.

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