Water-resistant vegetable protein powder adhesive compositions
First Claim
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1. A method of preparing a protein-based adhesive, the method comprising the steps of:
- denaturing a protein, whereby a denatured protein in an adhesive state is obtained; and
drying the protein, wherein the protein is in a powder form.
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Abstract
Water-resistant, protein-based powder adhesive compositions and methods for preparing them are provided. The adhesives are prepared by denaturing a vegetable protein, such as soy flour to the “preferred adhesive state”, co-polymerizing with one or more reactive cross-linking agents and spray-drying or freeze-drying the composition to preserve the preferred adhesive state. The adhesives exhibit superior water resistance, and can be used to bond wood substrates, such as panels or laminate, or in the preparation of composite materials.
64 Citations
35 Claims
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1. A method of preparing a protein-based adhesive, the method comprising the steps of:
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denaturing a protein, whereby a denatured protein in an adhesive state is obtained; and
drying the protein, wherein the protein is in a powder form. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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- 25. A powder adhesive of denatured soy protein.
- 33. A composite board comprising a powder adhesive of denatured soy protein and a solid material.
Specification