Polyurethanes derived from lesquerella oil
AssigneeBoral Material Technologies Inc.
InventorRonald M. Herrington
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Abstract
Composite materials and methods for their preparation are described herein. The composite materials include a polyurethane made from the reaction of at least one isocyanate and at least one polyol, and coal ash (e.g., fly ash). The isocyanates for these composite materials may be selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof. The at least one polyol includes lesquerella oil. The coal ash is present in amounts from about 40% to about 90% by weight of the composite material. Also described is a method of preparing a composite material, including mixing at least one isocyanate, at least one polyol, coal ash (e.g., fly ash), and a catalyst.
Claims30
A composite material comprising:
- a polyurethane formed by the reaction of at least one isocyanate selected from the group consisting of diisocyanates, polyisocyanates and mixtures thereof, and at least one polyol wherein the at least one polyol includes lesquerella oil, and
- from about 40% to about 90% by weight coal ash.
A method of preparing a composite material comprising:
- mixing (1) at least one isocyanate selected from the group consisting of diisocyanates, polyisocyanates and mixtures thereof, (2) at least one polyol wherein the at least one polyol includes lesquerella oil, (3) coal ash, and (4) a catalyst;
- and
- allowing the at least one isocyanate and the at least one polyol to react in the presence of the coal ash and catalyst to form the composite material,
- wherein the amount of coal ash added in the mixing step comprises from about 40% to about 90% by weight of the composite material.
Dependencies are inferred from the claim text.