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. 08, 1996
Filed:
Mar. 30, 1995
Applicant:
Inventors:
Hiroki Kuriu, Moriyama, JP;
Akira Mita, Moriyama, JP;
Kazufumi Ueno, Moriyama, JP;
Yoshinori Matsumoto, Moriyama, JP;
Yoshihiro Wada, Moriyama, JP;
Masaaki Iwami, Nabari, JP;
Assignee:
Gunze Limited, Ayabe, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
4284744 ; 4284755 ; 4284761 ; 4284763 ; 4284769 ; 428910 ;
Abstract
The invention provides a multi-layer film having 1 to 4 polyamide layers, characterized in that at least one polyamide layer comprises about 50 to about 95% by weight of a crystalline polyamide and about 50 to about 5% by weight of an amorphous polyamide and that the multi-layer film is produced by stretching a flat film at least in the lateral direction; and a process for preparing the multi-layer film.