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. 16, 2013
Filed:
Mar. 30, 2011
Toshio Tsuboi, Pasadena, TX (US);
Ray Jouett, Pasadena, TX (US);
Robert Armstrong, Pasadena, TX (US);
Yoshio Yamamoto, Kurashiki, JP;
Toshio Tsuboi, Pasadena, TX (US);
Ray Jouett, Pasadena, TX (US);
Robert Armstrong, Pasadena, TX (US);
Yoshio Yamamoto, Kurashiki, JP;
Kuraray Co., Ltd., Kurashiki-shi, JP;
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.