Starch-based adhesive coating

Details Starch-based adhesive coating Starch-based adhesive coating

1991-07-30

1993-12-21

Brunsman, David

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106203, 106208, C09D10302, C09D10304, C09D10306, C09D10308

Patent

active

052717666

ABSTRACT:
A sheet-like paper article is provided with a dry adhesive coating which can be rendered tacky by wetting with water at room temperature by preparing a starch-based adhesive preparation comprising an aqueous slurry of cold water swellable starch in water, the slurry also containing an alcohol selected from the group consisting of methanol, ethanol, propanol, butanol, hexanol, decanol, their isomers and mixtures thereof, and the alcohol having a concentration sufficient to substantially prevent the water from causing the starch to swell. The alcohol may be partly or completely replaced by a glycol, for example ethylene glycol or propylene glycol. The aqueous slurry is coated on a surface of the paper article, and the coated paper article is heated to remove the alcohol and/or glycol and water from the slurry coating and provide a dry starch-based adhesive coating which can be rendered tacky by wetting with water at room temperature.

REFERENCES:
patent: 3072537 (1963-01-01), Stonehill
patent: 3425968 (1969-02-01), Reiling
patent: 4238057 (1980-12-01), Matsunaga et al.
patent: 5096491 (1992-11-01), Nagai et al.

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