Elastomers based on 1,4-diisocyanato cyclohexane enriched in...

C - Chemistry – Metallurgy – 08 – G

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C08G 18/75 (2006.01)

Patent

CA 2101465

ELASTOMERS BASED ON 1,4-DIISOCYANATO CYCLOHEXANE 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 1,4-diisocyanato cyclohexane containing from about 40 to 100 percent of the trans-isomer.

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