Thermoplastic polyurethane elastomers

Details Thermoplastic polyurethane elastomers Thermoplastic polyurethane elastomers

C - Chemistry, Metallurgy

08

G

C08G 18/62 (2006.01) C08G 18/65 (2006.01)

Patent

CA 2212481

The invention relates to thermoplastically processable polyurethane elastomers, for the preparation of which specific hydrogenated polybutadienes with terminal hydroxyl groups are used as polyol components. The polyols are so compatible with low molecular weight diols and isocyanates that no emulsifiers or solvent promoters have to be added during polyurethane production.

L'invention concerne des élastomères de polyuréthane se prêtant au traitement thermoplastique, pour la préparation desquels des polybutadiènes hydrogénés spécifiques portant des groupes terminaux hydroxyle sont utilisés comme constituants polyoliques. Les polyols sont à ce point compatibles avec les diols et les isocyanates de faible poids moléculaire qu'il n'est pas nécessaire d'ajouter des émulsifiants ou des promoteurs de solvant durant la production du polyuréthane.

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