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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 4281045 B1

PDFFull Text
Date of Patent:
Jul. 28, 1981

Filed:

Nov. 29, 1979

Multi-layer extruded article

Applicant:
Inventors:

Takehiko Sumi, Kyoto, JP;

Yoshinobu Oshige, Kyoto, JP;

Yoshio Koike, Kyoto, JP;

Kazuya Matsumoto, Kyoto, JP;

Assignee:

Kyoraku Co., Ltd., Kyoto, JP;

Attorney:

Armstrong, Nikaido, Marmelstein & Kubovcik

Primary Examiner:

Ellis P Robinson

Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428516 ; 426127 ; 215 / ; 428 35 ; 428 36 ; 428515 ; 428520 ; 428522 ; 428523 ;
Abstract

A multi-layer extruded article useful for packaging materials, comprising a gas-barrier layer and a polyolefin layer laminated on at least one of the opposite sides of the gas-barrier layer, the gas-barrier layer being made of a mixture comprising a saponification product of an ethylene-vinyl acetate copolymer, a saponification product of an ethylene-vinyl acetate copolymer having a different ethylene content from the first saponification product, and a polyvinyl alcohol.

Find Patent Forward Citations

Sumi, Takehiko. (1981). Multi-layer extruded article (U.S. Patent No. 4281045). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4281045

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

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