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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 9416208 B1

PDFFull Text
Date of Patent:
Aug. 16, 2016

Filed:

Mar. 23, 2012

Method for producing ethylene-vinyl alcohol copolymer resin, ethylene-vinyl alcohol copolymer resin, and laminate

Applicants:

Kenji Nakano, Okayama, JP;

Kazutaka Ikeda, Okayama, JP;

Inventors:

Kenji Nakano, Okayama, JP;

Kazutaka Ikeda, Okayama, JP;

Assignee:

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

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Ling Choi

Assistant Examiner:

Jessica E Whiteley

Int. Cl.
CPC ...
C08F 2/46 (2006.01); C08G 61/04 (2006.01); C08F 216/06 (2006.01); C08J 3/28 (2006.01); C08F 6/26 (2006.01); C08F 210/02 (2006.01); C08F 6/12 (2006.01); C08F 2/01 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); C08J 7/12 (2006.01); C08J 7/14 (2006.01); B29C 47/00 (2006.01); B29C 47/10 (2006.01);
U.S. Cl.
CPC ...
C08F 216/06 (2013.01); B32B 27/08 (2013.01); B32B 27/306 (2013.01); C08F 2/01 (2013.01); C08F 6/12 (2013.01); C08F 6/26 (2013.01); C08F 210/02 (2013.01); C08J 3/28 (2013.01); C08J 7/123 (2013.01); C08J 7/14 (2013.01); B29C 47/0009 (2013.01); B29C 47/1018 (2013.01); C08J 2329/02 (2013.01); C08J 2329/04 (2013.01);
Abstract

Provided are 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. Additionally, a method for producing an ethylene-vinyl alcohol copolymer resin capable of efficiently drying while inhibiting deterioration of qualities is provided. The method for producing an ethylene-vinyl alcohol copolymer resin of the present invention includes a step of irradiation with an infrared ray for irradiating with an infrared ray an ethylene-vinyl alcohol copolymer or an ethylene-vinyl ester copolymer that is a precursor of the ethylene-vinyl alcohol copolymer.

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