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. 17, 2016
Filed:
May. 24, 2013
Applicant:
Polyplastics Co., Ltd., Tokyo, JP;
Inventor:
Eiki Kunimoto, Fuji, JP;
Assignee:
POLYPLASTICS CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2006.01); C08L 45/00 (2006.01); C08L 35/06 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); C08L 35/06 (2013.01); C08L 45/00 (2013.01); C08J 2300/00 (2013.01);
Abstract
A cyclic olefin resin film which has heat resistance and improved brittleness. A heat-resistant transparent film which has an internal haze value of 1.0% or less and contains a cyclic olefin resin having a refractive index of n1 and a glass transition temperature (Tg) of 170° C. or more and a styrene elastomer that has a refractive index of n2 so that Δn=|n2−n1| is 0.012 or less. The heat-resistant transparent film may contain two or more kinds of styrene elastomers, and the cyclic olefin resin may be a copolymer of norbornene and ethylene.