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:
Jan. 06, 2009
Filed:
Jul. 22, 2004
Naohiko Uchiumi, Okayama, JP;
Kaoru Ikeda, Kurashiki, JP;
Noriyuki Kida, Kurashiki, JP;
Tetsuya Hara, Kurashiki, JP;
Syukiti Kawamura, Kurashiki, JP;
Naohiko Uchiumi, Okayama, JP;
Kaoru Ikeda, Kurashiki, JP;
Noriyuki Kida, Kurashiki, JP;
Tetsuya Hara, Kurashiki, JP;
Syukiti Kawamura, Kurashiki, JP;
Kuraray Co., Ltd., Kurashiki-shi, JP;
Abstract
The present invention provides a resin composition which comprises EVOH and a thermoplastic resin other than EVOH and which generates less odor and therefore is suitable for food packaging applications. The invention also provides an environmentally friendly method for producing a resin composition, without releasing any carboxylic acid such as acetic acid to the peripheral environment. A resin composition containing less carboxylate group is obtained by contacting an ethylene-vinyl alcohol copolymer resin with an aqueous solution containing both carbon dioxide gas and at least one additive selected from the group consisting of an alkali metal salt (A) and a boron compound (B) and then melt kneading with a thermoplastic resin (G) other than EVOH.