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US 2011/0033712 A1Published application
Polyurethane elastomers
AssigneeDow Global Technologies LLC
InventorsRui Xie, Debkumar Bhattacharjee, John N. Argyropoulos
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Abstract
A polyurethane elastomer is provided. The elastomer is the reaction product of at least a prepolymer and a chain extender, where the prepolymer is the reaction product of at least one polyol and at least one aliphatic diisocyanate. The chain extender is an aromatic diamine.
Claims17
A polyurethane elastomer, comprising:
- the reaction product of at least a prepolymer and a chain extender, wherein the prepolymer comprises the reaction product of at least one polyol and at least one aliphatic diisocyanate, the chain extender comprises an aromatic diamine, the aliphatic diisocyanate comprises a mixture of 1,3-bis(isocyanatomethyl)cyclohexane and 1,4-bis(isocyanatomethyl)cyclohexane, and wherein the polyurethane elastomer has a Bashore Rebound of more than 44% and a hardsegment content of between about 10% and about 50%.
A polyurethane elastomer, comprising:
- the reaction product of at least a prepolymer and a chain extender, wherein the prepolymer comprises the reaction product of at least one polyol and at least one aliphatic diisocyanate, the chain extender comprises an aromatic diamine, and wherein the polyurethane elastomer has a Compression Set less than 30% and a hardsegment content of between about 10% and about 50%.
Dependencies are inferred from the claim text.