Adhesive additives and adhesive compositions containing an adhesive additive
AssigneeAshland Licensing and Intellectual Property LLC
InventorsGang-Fung Chen, Stephen Hupp, Philip L. Schell
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Abstract
Adhesive additives that are used in conjunction with polyisocyanate resins to form adhesive compositions. The adhesive additives contain castor oil, a mixture of castor oil and triglycerides, or a reaction product from the transesterification of one or more polyols and one or more triglycerides. The adhesive compositions are well suited for use as a binder in the manufacture of various composite products, particularly composite wood products including OSB construction panels and laminate composites.
Claims21
A wood composite comprising a material selected from the group consisting of wood strands, wood particles, and cellulose fibers, and a cured binder, wherein the cured binder comprises a crosslinked polymer that is a reaction product of one or more polyisocyanate resins, and an adhesive additive containing castor oil and one or more triglycerides, wherein the castor oil and the one or more triglycerides are provided as a weight ratio of castor oil to triglyceride from about 4:1 to about 1:4.
A wood composite comprising a material selected from the group consisting of wood strands, wood particles, and cellulose fibers, and a cured binder, wherein the cured binder comprises a crosslinked polymer that is a reaction product of one or more polyisocyanate resins and castor oil, wherein the resins and the castor oil are provided in a respective weight ratio of from about 3:1 to about 1:2, and the cured binder is present in an amount of 1% to 10% by weight based on the weight of the material.
A wood composite comprising wood strands and a cured binder, wherein the binder comprises a crosslinked polymer that is a reaction product of one or more polyisocyanate resins and an adhesive additive, the adhesive additive comprising a reaction product from the transesterification of one or more polyols and one or more triglycerides, and a weight ratio of polyol to triglyceride provides a calculated hydroxyl functionality of about 1.3 to about 2.6 in the transesterified reaction product.
A composite comprising synthetic fibers and a cured binder, wherein the cured binder comprises a crosslinked polymer that is a reaction product of one or more polyisocyanate resins, and an adhesive additive containing castor oil and one or more triglycerides, wherein the castor oil and the one or more triglycerides are provided as a weight ratio of castor oil to triglyceride from about 4:1 to about 1:4.
A composite comprising synthetic fibers and a cured binder, wherein the cured binder comprises a crosslinked polymer that is a reaction product of one or more polyisocyanate resins and castor oil, wherein the resins and the castor oil are provided in a respective weight ratio of from about 3:1 to about 1:2, and the cured binder is present in an amount of 1% to 10% by weight based on the weight of the material.
A composite comprising synthetic fibers and a cured binder, wherein the binder comprises a crosslinked polymer that is a reaction product of one or more polyisocyanate resins and an adhesive additive, the adhesive additive comprising a reaction product from the transesterification of one or more polyols and one or more triglycerides, and a weight ratio of polyol to triglyceride provides a calculated hydroxyl functionality of about 1.3 to about 2.6 in the transesterified reaction product.
Dependencies are inferred from the claim text.