Eldon Scott Larsen

US Patent:

57445567, Apr 28, 1998

Filed:

Sep 13, 1996

Appl. No.:

8/712930

Inventors:

George Ernest Keller - South Charleston WV
Keith Ernest Carmichael - Charleston WV
Jean Bowman Cropley - Scott Depot WV
Eldon Ronald Larsen - Charleston WV
Mark Wilton Smale - Glen Gardner NJ
Timothy Todd Wenzel - Charleston WV
Clark Curtis Williams - Charleston WV

Assignee:

Union Carbide Chemicals & Plastics Technology Corporation - Danbury CT

International Classification:

C08F 234

US Classification:

526135

Abstract:

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.

US Patent:

61144754, Sep 5, 2000

Filed:

Apr 6, 1998

Appl. No.:

9/055915

Inventors:

Mark Gregory Goode - Hurricane WV
Eldon Ronald Larsen - Charleston WV
Hemal Ranchhod Patel - Scott Depot WV
Jeffery Scott Bradley - Dunbar WV

Assignee:

Union Carbide Chemicals & Plastics Technology Corporation - Danbury CT

International Classification:

F26B 100
C08F 234

US Classification:

526 62

Abstract:

There is provided a process for drying a fluidized reactor system comprising introducing a boiling point depressing agent into said system optionally while heating said system.