公开(公告)号：US11186666B2

公开(公告)日：2021-11-30

申请号：US16064307

申请日：2016-12-28

申请人： THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.

发明人： Daichi Nishimura ,  Takuya Nakajima ,  Masahiko Taniguchi ,  Koji Yamada

IPC分类号： C08F216/06 ,  B65D65/20 ,  B65D65/40 ,  B29B9/06 ,  C08L29/04 ,  C08K3/08 ,  C08K3/11 ,  B32B27/28 ,  B29B9/12 ,  B32B27/30

摘要： An ethylene-vinyl alcohol copolymer composition is provided, which contains an ethylene-vinyl alcohol copolymer and an iron compound, wherein the ethylene-vinyl alcohol copolymer has an ethylene content of 20 to 60 mol %, wherein the iron compound is present in a proportion of 0.01 to 100 ppm on a metal basis based on the weight of the ethylene-vinyl alcohol copolymer composition.

公开(公告)号：US20180194876A1

公开(公告)日：2018-07-12

申请号：US15913069

申请日：2018-03-06

申请人： THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.

发明人： Tomonori Yoshida ,  Nobuaki Sato ,  Masahiko Taniguchi

IPC分类号： C08F8/16 ,  C08F210/02 ,  C08F216/06 ,  C08F8/12

CPC分类号： C08F8/16 ,  B32B27/28 ,  C08F8/12 ,  C08F8/48 ,  C08F210/02 ,  C08F216/06 ,  C08F2810/40

摘要： An ethylene-vinyl alcohol copolymer has an ethylene content of 20 to 60 mol % and includes a carboxylic acid group and a lactone ring group present at terminals thereof, wherein the molar concentration (Y/Z) of a lactone ring molar content (Y) to a sum (Z) of a carboxylic acid molar content (X) and the lactone ring molar content (Y) is not less than 58 mol %. The ethylene-vinyl alcohol copolymer is excellent in high-temperature thermal stability substantially without thermal decomposition, and is free from odor emanation and coloration even if being processed at a higher temperature.