Starch-based aqueous adhesive compositions and uses thereof
AssigneeCoöperatie AVEBE U.A.
InventorsPieter Lykle Buwalda, Anna Maria Dijk-van Delden, Anne Margriet Hofman-de Dreu
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Abstract
The invention relates to starch-based aqueous adhesive compositions and uses thereof. Provided is an aqueous adhesive composition comprising highly branched starch (HBS) obtained by treatment of starch or starch derivatives with a glycogen branching enzyme, and further comprising a carboxymethyl (CM) polysaccharide derivative, such as a carboxymethyl ether of starch, cellulose or a combination thereof. Also provided is a method for adhering a first substrate to a second substrate, comprising applying to at least said first or said second substrate said starch-based adhesive, and a glued or glueable product obtainable thereby.
Claims5
A method for preparing an adhesive composition comprising a branched starch with a viscosity shear rate index of more than or equal to 1.2, wherein the viscosity is measured at a temperature of 25° C., comprising mixing enzymatically branched starch with water and at least one carboxymethylated polysaccharide.
A method for adhering a first substrate to a second substrate, comprising applying to at least said first or said second substrate a water-based adhesive composition comprising an aqueous adhesive composition comprising highly branched starch (HBS) obtained by treatment of starch or starch derivatives with a glycogen branching enzyme (EC 2.4.1.18), and further comprising a carboxymethyl (CM) polysaccharide derivative, wherein at least one of said substrates is a paper, glass or wood substrate.
Dependencies are inferred from the claim text.