MODIFIED GUAYULE RESIN/SOY PROTEIN BLENDS FOR BIO-BASED ADHESIVES, ASSOCIATED METHODS FOR FORMING SAME, AND ASSOCIATED STRUCTURES INCLUDING SUCH ADHESIVES
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United States of America Patent
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Issued Date -
Dec 7, 2023
app pub date -
Oct 13, 2021
filing date -
Oct 16, 2020
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Abstract
An adhesive composition for use in coupling together two substrates to form a structure, such as for use in coupling together two wooden substrates to form a wooden structure, includes a mixture of a modified guayule resin and soy protein. The modified guayule resin can be a base-solvent modified guayule resin or can be an HiCh-modified guayule resin each respectively formed from an unmodified guayule base resin. The unmodified guayule base resin is obtained in a rubber extraction process of guayule at solvent removal temperatures ranging from 104 to 166 degrees Celsius. The method for forming the adhesive composition includes forming a modified guayule resin and mixing the formed modified guayule resin with soy protein. The adhesive composition, when used in forming structures, provides enhanced wet shear strength as compared with adhesive compositions including soy protein alone.
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