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:
Jan. 10, 2012
Filed:
Apr. 01, 2009
Applicants:
Masami Kamigaito, Nagoya, JP;
Kotaro Satoh, Nagoya, JP;
Hiroko Sugiyama, Nagoya, JP;
Inventors:
Assignees:
Yasuhara Chemical Co., Ltd., Fuchu, JP;
Kuraray Co., Ltd., Kurashi-Shi, JP;
National University Corporation Nagoya University, Nagoya-Shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 210/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
To provide a β-pinene polymer excellent in heat resistance while having thermoplasticity, and further also having excellent strength, without impairing the inherent characteristics of small specific gravity and excellent transparency. A desired β-pinene polymer having a weight average molecular weight of 90,000 to 1,000,000 and a glass transition temperature of 80° C. or more was obtained by polymerizing β-pinene in the presence of a bifunctional vinyl compound.