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. 21, 2020
Filed:
Apr. 22, 2016
The Nippon Synthetic Chemical Industry Co., Ltd., Osaka, JP;
Kazuki Kawamoto, Osaka, JP;
Takashi Suzuki, Osaka, JP;
Nobuaki Sato, Osaka, JP;
Koji Yamada, Osaka, JP;
MITSUBISHI CHEMICAL CORPORATION, Tokyo, JP;
Abstract
An object of the invention is to provide an EVOH which has improved melt moldability and is excellent in terms of gas barrier property and secondary formability. The present invention relates to an ethylene-vinyl alcohol copolymer that, when examined by liquid chromatography, gives an ethylene content distribution curve which has at least two peaks and in which the ethylene content (a) of a component that shows a highest peak (A), the ethylene content (b) of a component that shows a second highest peak (B), and the proportion (v) and distribution of component(s) (V) having ethylene contents (w) corresponding to specific regions (W) are within specific ranges.