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. 05, 2015
Filed:
Sep. 07, 2010
Yu Nitto, Tokyo, JP;
Yasukazu Shikano, Tokyo, JP;
Shinji Ieda, Tokyo, JP;
Kazunori Terada, Tokyo, JP;
Masaaki Aramaki, Tokyo, JP;
Yu Nitto, Tokyo, JP;
Yasukazu Shikano, Tokyo, JP;
Shinji Ieda, Tokyo, JP;
Kazunori Terada, Tokyo, JP;
Masaaki Aramaki, Tokyo, JP;
Asahi Kasei Chemicals Corporation, Tokyo, JP;
Abstract
[Problem to be Solved] To provide a polyamide having a high melting point, which has excellent strength, toughness, and stability under heating. [Solution] This polyamide is obtained by polymerizing an (a) dicarboxylic acid comprising at least 50 mol % of an alicyclic dicarboxylic acid and a (b) diamine comprising at least 50 mol % of a diamine having a pentamethylenediamine skeleton, wherein the polyamide has a cyclic amino end amount of 30 to 60μ equivalents/g.