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US 12,595,345 B2Granted
Gas barrier laminate, coating liquid for producing the gas barrier laminate, packaging material, packaging body, and packaged article
AssigneeToppan Inc.
InventorTetsuya Okano
Life of this patent
Estimating the term…
Abstract
High gas barrier properties can be achieved without requiring strict control for preventing entry of moisture. A coating liquid for producing a gas barrier laminate contains a carboxy group-containing polymer, polyvalent metal-containing particles, a surfactant, and an organic solvent. In the coating liquid, the carboxy group-containing polymer has a number average molecular weight of 100,000 or less.
Claims16
A coating liquid for producing a gas barrier laminate, wherein
- the coating liquid contains a carboxy group-containing polymer (A), polyvalent metal-containing particles (B), a surfactant (C), and an organic solvent (D);
- and
- the carboxy group-containing polymer (A) has a number average molecular weight of 100,000 or less, wherein the coating liquid has a water content of 1,500 ppm or more.
Dependencies are inferred from the claim text.