B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/1.A
B01J 27/24 (2006.01) B01J 31/12 (2006.01) C08G 18/18 (2006.01)
Patent
CA 1095489
9919-C-l CATALYST SYSTEM CONTAINING DIMETHLYAMINO ETHER MONO-OLS FOR POLYURETHANE FOAM FORMATION ABSTRACT OF THE DISCLOSURE Cellular urethane polymers are provided by effect- ing the reaction of an organic polyol reaction comprising a polyether polyol and an organic polyisocyanate reaction in the presence of a blowing agent and a catalyst system com- prising a tertiary-dimethlamino ether mono-ol. In the dimethylamino ether mono-ols employed as catalysts in the practice of the invention, the tertiary-dimethlamino group and the hydroxyl group are positioned beta to a common acyclic ether oxygen atom or to different acyclic ether oxygen atoms which in turn are positioned beta to one another. The said dimethylamino ether mono-ols are versatile, low odor catalyst and are uSeful in forming cellular urethane polymers ranging from all water-blown flezible polyether foam to all fluorocarbon-blown rigid foam including semi-flexible and high-resilience foam products. Especially preferred for use in the practice of the invention are 2-(2-dimethlaminoethoxy)ethanol and 2-[2-(2-dimethylaminoethoxy)ethoxy]ethanol either as such or in combination with other catalyst including other tertiary-amine components and/or organic compounds of tin. Also provided are blended catalyst systems comprising said dimethylamino ether mono-ols. S P E C I F I C A T I O N 1.
343276
Duffy Robert D.
Sandner Michael R.
Hopley William G.
Union Carbide Corporation
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