Catalyst compositions

Abstract

Abstract CATALYST COMPOSITIONS COMPRISING COMPLEX ORGANOALUMINATE COMPOUNDS OF SILICON, TIN AND PHOSPHORUS AND A LIQUID DILUENT WHICH COMPOSITIONS ARE PARTICULARLY USEFUL AS EPOXIDE POLYMERIZATION CATALYSTS ARE DESCRIBED. THESE COMPOSITIONS CAN BE PREPARED BY REACTING, IN A LIQUID DILUENT WHICH CAN BE AN INERT ORGANIC DILUENT OR AN ETHER THAT COORDINATES WITH THE COMPLEX ORGANOALUMINATE, A LITHIUM ORGNOALUMINATE WITH A HALOGEN-CONTAINING COMPOUND OF SILICON, TIN OR PHOSPHORUS, AS FOR EXAMPLE BY REACTING LITHIUM DIETHYLALUMINATE WITH DIMETHYLDICHLOROSILANE, STANNIC CHLORIDE, DICHLOROPHENYLPHOSPHINE OXIDE, ETC., OR BY REACTING A TRIOGRANOALUMINUM SUCH AS TRIETHYLALUMINUM WITH DIMETHYLSILANEDIOL, ORTHO PHOSPHORIC ACID, STANNIC HYDROXIDE, ETC.

Inventors

• 👤 Edwin J Vandenberg

Bibliographic Details