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:
Mar. 17, 2015
Filed:
Jun. 22, 2012
Applicants:
Keiko Ichinose, Nagoya, JP;
Kohei Yamashita, Nagoya, JP;
Makito Yokoe, Nagoya, JP;
Koji Yamauchi, Nagoya, JP;
Inventors:
Keiko Ichinose, Nagoya, JP;
Kohei Yamashita, Nagoya, JP;
Makito Yokoe, Nagoya, JP;
Koji Yamauchi, Nagoya, JP;
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 8/02 (2006.01); C08G 65/02 (2006.01); C07D 323/00 (2006.01); C08G 65/40 (2006.01);
U.S. Cl.
CPC ...
C08G 65/02 (2013.01); C07D 323/00 (2013.01); C08G 65/40 (2013.01);
Abstract
There is provided a production method of poly(phenylene ether ether ketone). The production method makes a cyclic poly(phenylene ether ether ketone) composition subjected to thermal ring-opening polymerization in the presence of a metal alkoxide and/or a metal phenoxide. The cyclic poly(phenylene ether ether ketone) composition includes 60% by weight or more of cyclic poly(phenylene ether ether ketone) and has a melting point of 270° C. or lower.