| abstract |
Grafted thermosetting thermoplastic polyurethane, pure or as a mixture, obtainable by direct grafting onto a thermoplastic polyurethane pure or as a mixture, of a crosslinking agent chosen from the group comprising diisocyanate trimers capable of initiating the crosslinking reaction at a temperature above 85 ° C and blocked isocyanates, solid or liquid, with a deblocking point above 85 ° C. |