公开(公告)号：US11279844B2

公开(公告)日：2022-03-22

申请号：US16708041

申请日：2019-12-09

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Chisato Oto ,  Katsumi Kawaguchi

IPC: C09D133/02 ,  C08K3/22 ,  C08K3/26 ,  C09D201/08 ,  C09D5/00 ,  C09D7/61 ,  C09D7/40 ,  C08J7/04 ,  C08J7/043 ,  C08J7/048 ,  B65D81/24

Abstract: This coating solution for a gas barrier contains an ammonium salt (A) of a polymer having a carboxyl group, a particulate multivalent metallic compound (B), and water, the content of the multivalent metallic compound (B) being about 0.5-2.0 times the chemical equivalent of the ammonium salt (A), and the mean particle diameter of the multivalent metallic compound (B) being about 4 μm or less.