Elastomers based on 4,4'-diisocyanato dicyclohexylmethane enriched in the trans, trans isomer which contain essentially no chain extenders
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United States of America Patent
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May 4, 1993
Grant Date -
N/A
app pub date -
Oct 8, 1991
filing date -
Oct 8, 1991
priority date (Note) -
Expired
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Abstract
Disclosed herein is an improved elastomer comprising a reaction product of a polyisocyanate and an active hydrogen containing material, the improvement wherein the elastomer is essentially free of a chain extender, wherein the polyisocyanate comprises 4,4'-diisocyanato dicyclohexylmethane containing from about 45 to 100 percent of the trans,trans isomer.
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