公开(公告)号：US20200299435A1

公开(公告)日：2020-09-24

申请号：US16756243

申请日：2018-10-16

Applicant: KURARAY CO., LTD

Inventor： Tatsuya TANIDA ,  Keisuke MORIKAWA ,  Masato NAKAMAE ,  Seisuke INADA

IPC: C08F216/06 ,  C09D129/04

Abstract: The present invention relates to ethylene-vinyl alcohol copolymer particles, comprising an ethylene-vinyl alcohol copolymer having an ethylene unit content of 1 mol % or more and less than 20 mol %, a viscosity-average polymerization degree of 200 to 5000, and a saponification degree of 80 to 99.99 mol %, wherein a crystallinity in water Cw (30° C.) at 30° C. and a crystallinity in water Cw (70° C.) at 70° C. as determined by pulse NMR satisfy formula (I). There is thus provided ethylene-vinyl alcohol copolymer particles having excellent solubility in water and excellent gas barrier performance.