Novel starch-based adhesives
AssigneeValtion Teknillinen Tutkimuskeskus
InventorsSoili Peltonen, Hannu Mikkonen
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Abstract
The invention relates to an adhesive formulation that comprises a starch-based adhesive dissolved in water. According to the invention the adhesive is made up of a native starch transglycosylation product and the solids content of the adhesive formulation is at least 45% by weight. The invention also relates to a method for preparing such adhesive formulations and to the use of the adhesives.
Claims18
An adhesive formulation, which comprises a starch-based adhesive dissolved in water, characterized in that the adhesive is made up of a transglycosylation product of native starch.
A method of preparing starch-based adhesive formulations, according to which method a starch-based polymer is dissolved in water, characterized in that the starch-based polymer used is a native starch transglycosylation product, which is mixed with and dissolved in water, optionally together with another starch-based adhesive, in order to produce an aqueous solution having a solids content of at least 45%.
A method of increasing the solids contents of starch-based adhesive formulations, characterized in that to a mixture or solution containing a starch-based adhesive there is added a starch transglycosylation product so that its concentration will be 0.1-75% of the solids of the formulation.
The use as an adhesive of a native starch transglycosylation product that has a degree of polymerization higher than DP 7.
Dependencies are inferred from the claim text.