Process for the production of polyurethane elastomer moldings

Details Process for the production of polyurethane elastomer moldings Process for the production of polyurethane elastomer moldings

C - Chemistry, Metallurgy

08

G

400/102, 403/41,

C08G 18/30 (2006.01) C08G 18/40 (2006.01) C08G 18/48 (2006.01) C08G 18/65 (2006.01)

Patent

CA 1070450

ABSTRACT OF THE INVENTION This invention relates to a process for making polyurethane elastomer moldings from a) organic polyisocyanates, b) polyhydroxyl compounds having molecular weights in the range from about 1800 to about 10,000, c) a chain extender, d) a blowing agent and e) optionally the auxiliaries and additives commonly used in making polyurethanes, the improvement wherein said chain extender (c) is a polyol mixture compriging i) ethylene glycol and ii) at least one other polyol having a molecular weight below 1800 and wherein said polyol mixture has an average molecular weight below about 600.

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