公开(公告)号：US06156401A

公开(公告)日：2000-12-05

申请号：US395293

申请日：1999-09-13

Applicant: Weon-Jung Choi ,  Oh-Bin Kwon ,  Kwang-Sik Jung

Inventor： Weon-Jung Choi ,  Oh-Bin Kwon ,  Kwang-Sik Jung

IPC: C08L23/04 ,  C08L23/08 ,  C08L23/36 ,  C08L77/00 ,  B29D22/00

CPC classification number: C08L23/04 ,  C08L23/08 ,  C08L2201/14 ,  C08L23/36 ,  C08L77/00 ,  Y10T428/1352

Abstract: Disclosed are an oxygen barrier resin composition and products containing the resin. The resin composition comprises 20 to 80 wt % of an ethylene-vinyl alcohol copolymer, 5 to 79 wt % of an ethylene copolymer, and 1 to 30 wt % of a compatibilizer obtained between a random copolymer of ethylene-maleic anhydride-alkyl(meth)acrylate and a polyamide oligomer ranging, in molecular weight, from 1,000 to 5,000. The compatibilizer functions in such a way that the main chain of the polyamide penetrates into the ethylene-vinyl alcohol phase while the main chain of the ethylene-alkyl(meth)acrylate exists in the ethylene copolymer phase. The resin composition is superior in both melt-moldability and compatibility, providing films, sheets or bottles with superb appearance (transparency), mechanical strength and oxygen barrier.

Abstract translation: 公开了一种阻氧树脂组合物和含有该树脂的产品。 该树脂组合物包含20至80重量％的乙烯 - 乙烯醇共聚物，5至79重量％的乙烯共聚物和1至30重量％的在乙烯 - 马来酸酐 - 烷基（甲基）丙烯酸酯的无规共聚物之间获得的增容剂 ）丙烯酸酯和分子量为1,000至5,000的聚酰胺低聚物。 增容剂的作用是使聚酰胺的主链渗透到乙烯 - 乙烯醇相中，而乙烯 - （甲基）丙烯酸烷基酯的主链存在于乙烯共聚物相中。 树脂组合物在熔融成型性和相容性方面均优异，提供具有优异外观（透明度），机械强度和氧气屏障的膜，片或瓶。