Adhesives derived from agricultural proteins
AssigneeThe Governors of the University of Alberta
InventorsJianping Wu, Chanchan Wang
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Abstract
The invention is directed to adhesives derived from animal or plant proteins, particularly canola and spent hen proteins. The adhesives are prepared by extracting the proteins by pH shifting; and either treating the extracted proteins with urea or sodium dodecyl sulfate, or polymerizing the proteins to form a protein-polymer conjugate. The invention is also directed to a wood based product comprising pieces of wood based material joined or consolidated with the adhesives.
Claims27
A method for preparing an adhesive derived from animal or plant proteins, comprising the steps of:
- a) extracting a protein fraction from an animal or plant product by pH shifting;
- and
- b) denaturing the extracted protein fraction;
- or
- c) forming a protein-polymer conjugate with the extracted protein fraction and a polymerizable monomer.
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The method of claim 17, wherein the canola protein is freeze-dried.
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An adhesive composition comprising spent-hen or canola protein, which protein modified by reaction with a polymerizable monomer comprising a methacrylate.
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Dependencies are inferred from the claim text.