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. 14, 2024
Filed:
Apr. 11, 2019
Applicant:
Zeon Corporation, Tokyo, JP;
Inventors:
Yasuo Tsunogae, Tokyo, JP;
Shingo Okuno, Tokyo, JP;
Assignee:
ZEON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 61/08 (2006.01);
U.S. Cl.
CPC ...
C08G 61/08 (2013.01);
Abstract
A ring-opened copolymer including structural units derived from a norbornene compound having a specific structure and structural units derived from a monocyclic olefin, wherein the proportion of the structural units derived from a norbornene compound is 25 to 90 wt % and the proportion of the structural units derived from a monocyclic olefin is 10 to 75 wt % relative to the total repeating structural units in the ring-opened copolymer, the weight average molecular weight of the ring-opened copolymer is 100,000 to 1,000,000, and the cis/trans ratio of the ring-opened copolymer is 0/100 to 50/50.