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. 10, 1979
Filed:
Jun. 22, 1977
Applicant:
Inventors:
Toshihiro Yamane, Otsu, JP;
Katsuhiro Tsuchiya, Otsu, JP;
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428515 ; 428516 ; 428910 ; 264171 ;
Abstract
A polypropylene film laminate is made by laminating at least one side of a polypropylene layer comprising 1 -8 wt. % ionomer with an ionomer layer. This film is produced by coextruding polymers from a die, and is useful for automatic packaging applications at high speed.
Yamane, Toshihiro. (1979). Heatsealable polypropylene film laminate (U.S. Patent No. 4148972). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4148972
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile