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.

Date of Patent:
Jun. 06, 2017

Filed:

Dec. 04, 2014
Applicant:

Dexerials Corporation, Tokyo, JP;

Inventors:

Ken Hosoya, Shiogama, JP;

Akihiro Horii, Miyagi-gun, JP;

Kei Obata, Miyagi-gun, JP;

Taku Ishimori, Sendai, JP;

Kanako Hashimoto, Miyagi-gun, JP;

Kazuki Hirata, Miyagi-gun, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 53/02 (2006.01); C08J 5/18 (2006.01); C08L 45/00 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); C08L 45/00 (2013.01); C08J 2345/00 (2013.01); C08J 2453/00 (2013.01); C08J 2453/02 (2013.01); C08L 53/025 (2013.01); C08L 2203/16 (2013.01);
Abstract

Provided is a cyclic olefin resin composition film having a small in-plane retardation and high toughness. The cyclic olefin resin composition film contains a cyclic olefin resin and a styrene elastomer having a storage modulus of lower than 100 MPa at 0° C. to 100° C. The styrene elastomer is dispersed in the cyclic olefin resin in an amount of 5 to 35 wt %. With this configuration, it is possible to lower the in-plane retardation of the film while ensuring the high toughness of the film.


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