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US 12,297,350 B2Granted
Thermoplastic polyurethane and process for making a thermoplastic polyurethane and components thereof
AssigneeLubrizol Advanced Materials, Inc.
InventorTrinidad Piedra Clemente
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Abstract
A heat resistant thermoplastic polyurethane composition is made by a reaction including a polyol component comprising the reaction of ε-caprolactone initiated with a polydimethylsiloxane and a polyether polyol.
Claims22
A thermoplastic polyurethane composition comprising the reaction product of:
- (a) a polyol component made from the reaction of α-caprolactone initiated with a polydimethylsiloxane polyol and a polyether polyol, wherein the polyol component is a bimodal polycaprolactone polyol;
- (b) a diisocyanate.
A process for making a thermoplastic polyurethane comprising the steps of:
- (i) making a polyol comprising the reaction product of ε-caprolactone initiated with a polydimethylsiloxane polyol and a polyether polyol, wherein the polyol is a bimodal polycaprolactone polyol;
- (ii) reacting the polyol with a diisocyanate.
Dependencies are inferred from the claim text.