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. 07, 2025
Filed:
Jan. 31, 2022
Mitsubishi Chemical Corporation, Tokyo, JP;
Takuya Nakajima, Tokyo, JP;
Yoshihiro Nakai, Tokyo, JP;
Keisuke Takeshita, Tokyo, JP;
Kenji Kudo, Tokyo, JP;
Hisao Uchida, Tokyo, JP;
MITSUBISHI CHEMICAL CORPORATION, Tokyo, JP;
Abstract
Provided is an ethylene-vinyl alcohol copolymer resin composition comprising an ethylene-vinyl alcohol copolymer (X) and a metal compound, wherein the composition satisfies the following formula (1), as an ethylene-vinyl alcohol copolymer resin composition having an excellent gas barrier property in the high humidity environment, particularly an excellent oxygen barrier property in the high humidity environment:Δ>0 (1)where Arepresents the second virial coefficient when the ethylene-vinyl alcohol copolymer resin composition is subjected to static light scattering measurement using hexafluoroisopropanol as a solvent, and Arepresents the second virial coefficient of the ethylene-vinyl alcohol copolymer (X) in the ethylene-vinyl alcohol copolymer resin composition measured in the same manner.