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:
Aug. 20, 2013
Filed:
Apr. 28, 2005
Applicant:
Shuichi Matsumura, Saitama, JP;
Inventor:
Shuichi Matsumura, Saitama, JP;
Assignee:
Keio University, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 8/50 (2006.01); C08G 63/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a depolymerization method for a polymer containing an ester bond in a main chain, by causing a solid acid catalyst to act on a polymer containing an ester bond in a main chain to depolymerize the polymer, thereby obtaining a re-polymerizable monomer and/or oligomer as a depolymerization product, and a method for producing a polymer containing an ester bond in a main chain, by polymerizing the re-polymerizable monomer and/or oligomer obtained by the depolymerization method.