World Intellectual Property Organization publishes Kuraray patent for EVA copolymer resin composition, method of production

GENEVA , January 14, 2013 () – Publication No. WO/2013/005807 was published on Jan. 10.

Title of the invention: "ETHYLENE-VINYL ALCOHOL COPOLYMER RESIN COMPOSITION AND METHOD FOR PRODUCING SAME."

Applicants: KURARAY CO. LTD. (JP).

Inventors: Yasuhiro Nonaka (JP), Yoshio Yamamoto (JP) and Yoshikazu Yamasaki (JP).

According to the abstract posted by the World Intellectual Property Organization: "The purpose of the present invention is to provide an ethylene-vinyl alcohol copolymer resin composition which has excellent appearance characteristics (particularly being reduced in coloration and hue spots) and is suppressed in occurrence of yellowing and the like during melt molding. The present invention is an ethylene-vinyl alcohol copolymer resin composition, which contains (A) an ethylene-vinyl alcohol copolymer and (B) a compound having an enediol structure, and wherein the molar ratio of the compound (B) relative to the vinyl alcohol unit of the ethylene-vinyl alcohol copolymer (A) is from 2.70 x 10-9 to 2.70 x 10-5 (inclusive)."

The patent was filed on July 5, 2012 under Application No. PCT/JP2012/067226.

For further information please visit: http://www.wipo.int/patentscope/search/en/detail.jsf?docId=WO2013005807

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