Polyurethane Based Asphalt Composition
AssigneeDow Global Technologies LLC
InventorsWei Li, Yi Zhang, Huan Chen
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Abstract
A polyurethane based asphalt composition includes an asphalt component and a polyurethane resin system that is the reaction product of an isocyanate component that includes at least one polyisocyanate and an isocyanate-reactive component that includes a cardanol-modified epoxy polyol. The cardanol-modified epoxy polyol is a reaction product of an epoxy component and an epoxy-reactive component at a ratio of epoxy groups to epoxy reactive groups from 1:0.95 to 1:5. The epoxy-reactive component includes a cardanol component.
Claims10
A polyurethane based asphalt composition, comprising:
- an asphalt component;
- and
- a polyurethane resin system that is the reaction product of an isocyanate component that includes at least one polyisocyanate and an isocyanate-reactive component that includes a cardanol-modified epoxy polyol, the cardanol-modified epoxy polyol being a reaction product of an epoxy component and an epoxy-reactive component at a ratio of epoxy groups to epoxy reactive groups from 1:0.95 to 1:5, the epoxy-reactive component including a cardanol component.
A process for preparing a polyurethane based asphalt composition, comprising:
- providing a cardanol-modified epoxy polyol that is a reaction product of an epoxy component and an epoxy-reactive component at a ratio of epoxy groups to epoxy reactive groups from 1:0.95 to 1:5, the epoxy-reactive component including a cardanol component,
- preparing a polyurethane resin system by mixing an isocyanate component that includes at least one polyisocyanate and an isocyanate-reactive component that includes the cardanol-modified epoxy polyol, and
- mixing the polyurethane resin system and an asphalt component.
A process for preparing a polyurethane based coating, comprising:
- (A) preparing a polyurethane based asphalt composition, by
- providing a cardanol-modified epoxy polyol that is a reaction product of an epoxy component and an epoxy-reactive component at a ratio of epoxy groups to epoxy reactive groups from 1:0.95 to 1:5, the epoxy-reactive component including a cardanol component,
- preparing a polyurethane resin system by mixing an isocyanate component that includes at least one polyisocyanate and an isocyanate-reactive component that includes the cardanol-modified epoxy polyol, and
- mixing the polyurethane resin system and an asphalt component;
- and
- (B) curing the polyurethane based asphalt composition.
(canceled)
Dependencies are inferred from the claim text.