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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.:

US 5817425 B1

PDFFull Text
Date of Patent:
Oct. 06, 1998

Filed:

Jul. 19, 1996

Layered polyamide film and method for producing the same

Applicant:
Inventors:

Chikao Morishige, Ohtsu, JP;

Yoshinori Nakae, Ohtsu, JP;

Mitsuru Kuwahara, Ohtsu, JP;

Shinya Higashiura, Ohtsu, JP;

Masashi Oki, Ohtsu, JP;

Toshiaki Takeuchi, Inuyama, JP;

Katsuaki Kuze, Inuyama, JP;

Assignee:

Toyo Boseki Kabushiki Kaisha, Osaka, JP;

Attorney:

Leydig, Voit & Mayer, Ltd.

Primary Examiner:

Paul J Thibodeau

Assistant Examiner:

D Lawrence Tarazano

Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
4284752 ; 428195 ; 428201 ; 4283 / ; 4284755 ; 428480 ; 428910 ; 4272071 ; 4273935 ; 26417113 ; 2642902 ;
Abstract

A layered polyamide film includes a polyamide substrate; and an adhesiveness-improving layer provided on at least one surface of the polyamide substrate. The adhesiveness-improving layer includes a graft copolymer of a polyester and an acrylic polymer. Another layered polyamide film includes a printing ink layer, an adhesive layer, and a sealant layer sequentially laminated on the adhesiveness-improving layer. A method for producing such a layered polyamide film includes the step of applying an aqueous dispersion of the graft copolymer of the polyester and the acrylic polymer to at least one surface of the polyamide substrate to form an adhesiveness-improving layer and, if necessary, laminating a printing ink layer, an adhesive layer, and a sealant layer on adhesiveness-improving layer.

Find Patent Forward Citations

Morishige, Chikao. (1998). Layered polyamide film and method for producing the same (U.S. Patent No. 5817425). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5817425

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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