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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 9085647 B1

PDFFull Text
Date of Patent:
Jul. 21, 2015

Filed:

May. 31, 2005

Thermoplastic transparent resin

Applicants:

Nobuya Saegusa, Kanagawa, JP;

Shojiro Kuwahara, Kanagawa, JP;

Inventors:

Nobuya Saegusa, Kanagawa, JP;

Shojiro Kuwahara, Kanagawa, JP;

Assignee:

MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Frank D Ducheneaux

Int. Cl.
CPC ...
B32B 27/08 (2006.01); B29C 47/00 (2006.01); C08F 212/08 (2006.01); C08F 220/14 (2006.01); C08F 220/18 (2006.01); C08F 8/04 (2006.01); B32B 27/30 (2006.01); C08L 33/10 (2006.01); C08L 33/08 (2006.01); C08L 25/08 (2006.01); C08L 33/12 (2006.01); B29C 47/06 (2006.01); G02B 6/122 (2006.01); B29C 47/04 (2006.01);
U.S. Cl.
CPC ...
C08F 8/04 (2013.01); B29C 47/0021 (2013.01); B29C 47/065 (2013.01); B32B 27/302 (2013.01); B32B 27/308 (2013.01); C08F 220/14 (2013.01); C08F 220/18 (2013.01); C08L 25/08 (2013.01); C08L 33/08 (2013.01); C08L 33/10 (2013.01); C08L 33/12 (2013.01); G02B 6/1221 (2013.01); B29C 47/043 (2013.01); B32B 2250/03 (2013.01); C08F 2800/10 (2013.01); C08F 2810/50 (2013.01);
Abstract

A thermoplastic transparent resin which is produced by hydrogenating 70% or more of aromatic double bonds of a copolymer. The copolymer is produced by polymerizing a monomer composition containing at least one (meth)acrylic ester monomer and at least one aromatic vinyl monomer and has a molar ratio (A/B) of from 1 to 4 wherein A is a molar amount of a constitutional unit derived from the (meth)acrylic ester monomer and B is a molar amount of a constitutional unit derived from the aromatic vinyl monomer. The thermoplastic transparent resin is suitable for the production of a molded article such as optical article having a good color tone because molding defect is less produced.

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