Polyurethane elastomers from hdi prepolymers with reduced...

C - Chemistry – Metallurgy – 08 – G

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C08G 18/73 (2006.01) A63B 37/12 (2006.01) C08G 18/10 (2006.01) C08G 18/42 (2006.01) C08G 18/44 (2006.01) C08G 18/48 (2006.01) A63B 37/00 (2006.01)

Patent

CA 2482436

Polyurethane prepolymers with reduced amount of unreacted monomeric hexamethylene 1,6-diisocyanate (HDI) are provided. Also provided are polyurethane elastomers obtained by mixing the polyurethane prepolymers having reduced amount of unreacted monomeric HDI with amine and/or hydroxy chain extenders and durable, resilient, colorfast golf ball covers obtained therefrom. Rolls, wheels and tires obtained from the polyurethane elastomers are also provided.

L'invention concerne des prépolymères de polyuréthanne avec une quantité réduite d'hexaméthylène 1,6-diisocyanate (HDI) monomérique qui n'a pas réagi. L'invention concerne également des élastomères de polyuréthanne obtenus par mélange des prépolymères de polyuréthanne possédant une quantité réduite de HDI monomérique qui n'a pas réagi avec des extendeurs de chaîne amine et/ou hydroxy, ainsi que des revêtements pour balles de golf durables, élastiques et à couleur solide, obtenus à partir de ces élastomères. L'invention concerne également des rouleaux, roues et pneus obtenus à partir de ces élastomères de polyuréthanne.

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