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AssigneeDow Global Technologies LLC
InventorsYanbin Fan, Dewen Nie, Ping Zhang, Shaoguang Feng
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A polyurethane composition is provided. The polyurethane composition comprises one polyisocyanate component comprising at least one aromatic polyisocyanate compound and/or isocyanate end-capped prepolymer formed by the reaction of said at least one aromatic polyisocyanate compound and at least one first polyol; at least one second polyol; and a crosslinker having at least one nitrogen atom and at least one secondary and/or tertiary hydroxyl group. The polyurethane product prepared by using the polyurethane composition can achieve improved operation time, aging resistance, weathering resistance, color stability, processability, and storage stability. A method for preparing the polyurethane product and a method for improving the performance property of the polyurethane product are also provided.
A polyurethane composition, comprising
A method for improving the performance property of a polyurethane product, comprising the step of covalently linking at least one repeating unit derived from a crosslinker having at least one nitrogen atom and at least one secondary and/or tertiary hydroxyl group in a polyurethane chain of the polyurethane product, wherein the performance property includes at least one of operation time, aging resistance, weathering resistance, color stability, processability, and storage stability.
Dependencies are inferred from the claim text.