Union Carbide Chemicals & Plastics Technology Corporation

Keith Ernest Carmichael

Timothy Todd Wenzel

George Ernest Keller, Ii

Clark Curtis Williams

Mark Wilton Smale

Eldon Ronald Larsen

Jean Bowman Cropley

Arakalud Venkatapathia Ramamurthy

A process for the gas-phase polymerization of polymers which allows for the introduction of an unsupported polymerization catalyst system into the gas-phase reactor, wherein the unsupported polymerization catalyst system comprises (i) a non-volatile materials fraction containing a polymerization catalyst; (ii) a solvent fraction which is at least partially miscible with the non-volatile materials fraction and which is sufficiently volatile to allow for the formation of polymerization catalyst particles when the mixture of the solvent fraction and the non-volatile materials fraction is sprayed into the reactor; (iii) a compressed fluid; and (iv) optionally a slowly vaporizing solvent.

Gas phase polymerization employing unsupported catalysts

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Charleston, WV, United States of America

Keith Ernest Carmichael