Invention Grant
- Patent Title: Coating solution for gas barrier, gas barrier laminate, packaging material and packaging material for heat sterilization
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Application No.: US16708041Application Date: 2019-12-09
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Publication No.: US11279844B2Publication Date: 2022-03-22
- Inventor: Chisato Oto , Katsumi Kawaguchi
- Applicant: TOPPAN PRINTING CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: TOPPAN PRINTING CO., LTD.
- Current Assignee: TOPPAN PRINTING CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2012-245307 20121107
- Main IPC: C09D133/02
- 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.
Information query
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