Polyurethane elastomers from HDI prepolymers with reduced content of free HDI monomers
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United States of America Patent
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app pub date -
Jan 17, 2005
filing date -
Apr 26, 2002
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Abstract
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.
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