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:
Nov. 23, 1982
Filed:
Sep. 05, 1980
Hiroshi Asakura, Oiso, JP;
Ippei Chimura, Yokohama, JP;
Teruaki Taguchi, Ebina, JP;
Renzo Minagawa, Koganei, JP;
Toyo Kagaku Kabushiki Kaisha, Kanagawa, JP;
Abstract
A composite packing film is provided which comprises a base film having relatively small longitudinal and transverse elongations of not more than 10%, a layer of unidirectionally elongated film elongated in one direction and laminated on one face of said base film through an adhesive, a layer of an elongated film elongated at least in the direction substantially perpendicular to said first direction and laminated on the other face of said base film through an adhesive, and a sealant layer having a melting point lower than those of said elongated films and laminated on either one of the external faces of said elongated films, the difference between the resistance against end tearing of said unidirectionally elongated film and the resistance against end tearing of said latter-mentioned elongated film being not less than 15 kg. A packing bag made of the composite film is also provided.