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:
Oct. 13, 1987
Filed:
May. 02, 1986
Applicant:
Inventors:
Kojiro Ito, Kusatsu, JP;
Takashi Okamoto, Osaka, JP;
Kunio Murakami, Uji, JP;
Minoru Kishida, Kyoto, JP;
Assignee:
Unitika Ltd., Hyogo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528335 ; 2642884 ;
Abstract
A polyamide film prepared from a polyamide composition comprised of at least 60% by weight of polytetramethyleneadipamide or a copolymer polyamide containing at least 60% by weight of a polytetramethyleneadipamide component, said film being at least monoaxially stretched at a stretching ratio of at least 1.5, said film having a characteristic value .DELTA.T of from 30.degree. to 60.degree. C. as determined from the relationship: