Cross-linkable thermoplastic polyurethanes
AssigneeHuntsman International LLC
InventorsChris Ian Lindsay, Christina Marinus, Hans Godelieve Guido Verbeke, Rene Alexander Klein
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Abstract
The invention provides a cross-linkable mixture of thermoplastic polyurethanes and ethylenic unsaturated compounds and thermoset materials that can obtained therefrom. The invention also provides application of the cross-linkable mixtures and processes in a solvent-less coating process.
Claims15
A cross-linkable mixture comprising a thermoplastic polyurethane containing radically polymerizable unsaturated groups at the end of the thermoplastic polyurethane chain with a number average molecular weight of 5000 to 12000, preferably 5000 to 10000, most preferably 5000 to 8000, and ethylenically unsaturated compounds.
The cross-linkable mixture according to claim wherein the amount of alcohol or amine comprising radically polymerizable unsaturations is between 0.08 mmole and 0.35 mmole per gram of cross-linkable mixture.
The cross-linkable mixture according to any one of the preceding claims wherein said ethylenically unsaturated compound is selected from the group consisting of mono acrylates and mono methacrylates and combinations thereof.
Dependencies are inferred from the claim text.