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 8419999 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 16, 2013

Filed:

Mar. 30, 2011
Applicants:

Toshio Tsuboi, Pasadena, TX (US);

Ray Jouett, Pasadena, TX (US);

Robert Armstrong, Pasadena, TX (US);

Yoshio Yamamoto, Kurashiki, JP;

Inventors:

Toshio Tsuboi, Pasadena, TX (US);

Ray Jouett, Pasadena, TX (US);

Robert Armstrong, Pasadena, TX (US);

Yoshio Yamamoto, Kurashiki, JP;

Assignee:

Kuraray Co., Ltd., Kurashiki-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 67/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is by the present invention is a method for producing an EVOH resin having sufficient long-run workability in melt molding and enabling prevention of coloring such as yellowing, an EVOH resin obtained by this method for production, and a laminate obtained from this resin. The present invention is a method for producing an ethylene-vinyl alcohol copolymer resin, the method including a step of saponifying an ethylene-vinyl ester copolymer to obtain an ethylene-vinyl alcohol copolymer, in which the method is characterized by further including a step of irradiating the ethylene-vinyl ester copolymer or the ethylene-vinyl alcohol copolymer with an infrared ray.


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Tsuboi, Toshio. (2013). Method for producing ethylene-vinyl alcohol copolymer resin, ethylene-vinyl alcohol copolymer resin, and multilayer structure (U.S. Patent No. 8419999). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8419999

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

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