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. 08, 2015
Filed:
Feb. 29, 2012
Applicants:
Makoto Nakai, Kyoto, JP;
Mariko Morimoto, Kyoto, JP;
Inventors:
Makoto Nakai, Kyoto, JP;
Mariko Morimoto, Kyoto, JP;
Assignee:
UNITIKA LTD., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 69/26 (2006.01); C08G 69/04 (2006.01); C08L 77/06 (2006.01); C08L 77/10 (2006.01); C08L 77/00 (2006.01); C08G 69/28 (2006.01);
U.S. Cl.
CPC ...
C08G 69/04 (2013.01); C08G 69/26 (2013.01); C08G 69/28 (2013.01); C08L 77/00 (2013.01); C08L 77/06 (2013.01); C08L 77/10 (2013.01);
Abstract
The present invention is a method for producing a polyamide resin, wherein a nylon salt obtained from a dicarboxylic acid and a diamine having a boiling point exceeding 100° C. is heated to be polymerized under normal pressure while water vapor is being allowed to be present in the polymerization reaction system.