C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/100, 18/715
C08G 18/66 (2006.01) C08G 18/32 (2006.01) C08G 18/40 (2006.01) C08G 18/48 (2006.01) C08G 18/64 (2006.01) C08G 18/65 (2006.01)
Patent
CA 1312972
Mo-3012 LeA 25,018 PROCESS FOR THE PRODUCTION OF MOLDED ARTICLES, MIXTURES OF ISOCYANATE REACTIVE COMPOUNDS SUITABLE THEREFOR AND THE MOLDED ARTICLES OBTAINED BY THE PROCESS ABSTRACT OF THE DISCLOSURE The present invention is directed to a process for the production of polyurethane or polyurea elastomeric molded articles according to the reaction injection molding process by reacting a polyisocyanate, a high molecular weight isocyanate reactive component and optionally a diamine chain extender, wherein the improvement is based on the use of the reaction product of a polyepoxide containing at least two epoxide groups with at least one mol of an aromatic diamine per epoxide group wherein the polyepoxide is present in an amount sufficient to provide about 0.5 to 25% by weight of the polyepoxide based on the weight of all the isocyanate reactive components. The present invention is also directed to the isocyanate reactive components for use in this process and to the molded articles produced in accordance with this process.
557665
Schafer Hermann
Weber Christian
Aktiengesellschaft Bayer
Swabey Ogilvy Renault
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