Elastomers based on 4,4'-diisocyanato dicyclohexyl-methane...

Details Elastomers based on 4,4'-diisocyanato dicyclohexyl-methane... Elastomers based on 4,4'-diisocyanato dicyclohexyl-methane...

C - Chemistry, Metallurgy

08

G

C08G 18/72 (2006.01) C08G 18/65 (2006.01) C08G 18/75 (2006.01)

Patent

CA 2079169

Mo-3672 MD90-81 ELASTOMERS BASED ON 4,4'-DIISOCYANATO DICYCLOHEXYLMETHANE ENRICHED IN THE TRANS, TRANS ISOMER WHICH CONTAIN ESSENTIALLY NO CHAIN EXTENDERS ABSTRACT OF THE DISCLOSURE 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 polyiso- cyanate comprises 4,4'-diisocyanato dicyclohexylmethane containing from about 45 to 100 percent of the trans,trans isomer.

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