Patent ID: 11905340
Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A product comprising a substrate and a layer of a mixture of polyethyleneimine and cellulose nanocrystal formed on the substrate, wherein
the cellulose nanocrystal comprising a sulfuric acid group and/or a sulfo group each derived from a sulfuric acid treatment and an anionic functional group derived from a hydrophilization treatment, wherein the sulfuric acid group and/or the sulfo group and the anionic functional group are contained in a total amount of 0.3 to 1.3 mmol/g, and
when the mixture contains the cellulose nanocrystal in an amount of 1.0 g/m2, the polyethyleneimine is contained in an amount of 0.01 to 2.0 g/m2.