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:
Apr. 21, 1998
Filed:
Jan. 31, 1996
Applicant:
Inventors:
Assignee:
Unitika Ltd., Hyogo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; C08J / ; B29C / ;
U.S. Cl.
CPC ...
4284744 ; 4284755 ; 4284777 ; 428910 ; 524449 ; 524606 ; 524791 ; 524789 ; 524879 ; 2641761 ; 2642107 ; 2642358 ; 2642884 ; 2642902 ;
Abstract
A polyamide film having been drawn at a draw ratio of 2 or more in at least one direction, which comprises a polyamide resin composition comprising from 90 to 99.99% by weight of a polyamide and from 10 to 0.01% by weight of a fluoromica-based mineral with swelling characteristics. The film is excellent in piercing pinhole strength and mechanical strength and heat dimensional stability after a retort treatment.