Starch ester based hot melt adhesive
AssigneeNational Starch and Chemical Investment Holding Corporation
InventorsRobert J. Billmers, Charles W. Paul, Stephen F. Hatfield, Thomas F. Kauffman
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Abstract
Hot melt adhesive compositions comprising selected modified starch esters as the main or base adhesive material wherein the starch ester has an ester component of about 2 to 18 carbon atoms and a DS of from about 0.3 to 3.0 and a sufficient amount of a non-volatile, polar organic diluent to allow the composition to melt and have a viscosity of less than 50,000 cP at an application temperature of 400.degree. F. or less.
Claims36
A hot melt adhesive composition comprising from about 10 to 80% by weight of a starch ester having from about 2 to 18 carbon atoms in the ester component and a degree of substitution (DS) of from about 0.3 to 3.0, and a diluent which is a non-volatile, polar organic material that is compatible with the starch ester and is present in sufficient amount to allow the composition to melt at an application temperature of 400.degree. F. or less and have a viscosity of 50,000 cPs or less at that temperature.
Dependencies are inferred from the claim text.