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:
Sep. 11, 2018
Filed:
Apr. 20, 2015
Applicant:
Daicel Corporation, Osaka-shi, Osaka, JP;
Inventors:
Takayuki Yaegashi, Fuji, JP;
Keiichi Osano, Fuji, JP;
Yoshimichi Okano, Himeji, JP;
Kouichi Umemoto, Himeji, JP;
Takeshi Yagi, Tokyo, JP;
Assignee:
Daicel Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 210/00 (2006.01); C08F 232/00 (2006.01); C08F 232/04 (2006.01); C08J 5/18 (2006.01); C08F 210/04 (2006.01); C08F 210/14 (2006.01);
U.S. Cl.
CPC ...
C08F 210/00 (2013.01); C08F 210/04 (2013.01); C08F 210/14 (2013.01); C08F 232/00 (2013.01); C08J 5/18 (2013.01);
Abstract
Provided is a film, sheet, plate, or other such formed article having excellent transparency made of a copolymer obtained from a cyclic olefin monomer and an α-olefin monomer. The present invention provides a formed article made from a copolymer having Tg of 170° C. or higher and an Al content of 50 ppm or less that is a copolymer including a structural unit of a cyclic olefin monomer (A) derived from norbornene and a structural unit of a monomer (B) derived from at least one C4-C12 α-olefin.