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. 10, 1994
Filed:
Nov. 13, 1991
Applicant:
Inventors:
Yukiatsu Komiya, Kurashiki, JP;
Masao Ishida, Kurashiki, JP;
Koji Hirai, Kurashiki, JP;
Setuo Yamashita, Kurashiki, JP;
Shinji Komori, Kurashiki, JP;
Takuji Okaya, Nagaokakyo, JP;
Assignee:
Kuraray Co., Ltd., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
525439 ; 525419 ; 525433 ; 525467 ; 525469 ; 528 80 ; 528 83 ;
Abstract
Novel polyamide copolymers having skeletons of a specific structure are disclosed. The polyamide copolymers have excellent resistance to hydrolysis, low temperature characteristics (low temperature softness), heat aging resistance and mechanical properties as compared to conventional polyamide copolymers. The polyamide copolymers also show excellent efficiencies in fabrication properties and transparency. In particular, the polyamide copolymers having a branched structure in the molecule thereof provide good results.