Union Carbide Chemicals & Plastics Technology Corporation

Union Carbide Chemicals and Plastics Company, Inc.

Edgar C Baker

Allen Noshay

Kiu H Lee

Jose Fernando Cevallos-Candau

George N Foster

Fathi David Hussein

John Henry Moorhouse

Seung J Rhee

Eric Allan Lucas

Frederick John Karol

Leonard Sebastian Scarola

Arthur E Marcinkowsky

Robert J Bernier

Aaron S Rhee

David N Edwards

Francis G Stakem

John G Victor

Janice E Sanders

Allan Noshay

John Gregory Victor

A colorable resin particle having an outer shell of a non-sticky polymer and an inner core of a sticky polymer produced in a gas phase fluidized bed reactor at or above the sticking temperature of the sticky polymer using a non-sticky prepolymerized catalyst and processes for producing the colorable resin and the non-sticky prepolymerized catalyst.

Non-sticky prepolymerized catalyst, and use thereof in production of

A colorable resin particle having an outer shell of a non-sticky olefinic polymer having a flow index of less than 20 decigrams/minute and an inner core of at least 90 wt % of a sticky polymer, the resin particle being made in a gas phase fluidized bed reactor at or above the sticking temperature of the sticky polymer in the absence of an inert particulate material fluidization aid.

Colorable non-sticky resin core-shell particles

A process for the production of EPM or EPDM comprising contacting ethylene, propylene, and, optionally, one or more dienes, in a fluidized bed, at a temperature at or above the sticking temperature of the product resin, under polymerization conditions, with

Process for the production of sticky polymers

A finishing process for a polymer containing an active catalyst residue. Starting polymer has a crystallinity of less than 10 percent by weight and is maintained in an essentially oxygen free reaction zone at a temperature less than polymer sticking temperature. The polymer is stabilized and acids neutralized by adding 2, 6-di-tert-butyl-4-alkyl phenol and/or alkyl -3-(3-5 -di-tert-butyl-4-hydroxy phenyl)- propionate and zinc oxide, hydrotalcite, or a zeolite. Resulting polymer is then treated with catalyst deactivators including water, and then mixed with photo-oxidative stabilizers.

Polymer finishing process

A process for preventing agglomeration of sticky polymers in a polymerization system which comprises adding to said polymerization system about 0.3 to about 80 weight percent based on the weight of the final product of an inert particulate material having an organo-modified polydimethylsiloxane (OM-PDMS) surface coating thereon.

Process for producing sticky polymers

An improved polymerization process for making essentially non-agglomerated ethylene polymers, especially EPR polymers, based on the use of a high activity vanadium catalyst, which utilizes an alkylated metal chain transfer agent to moderate the kinetics of the polymerization reaction so as to avoid formation of an undesirable amount of agglomerated polymer.

Process for making EPR resins

An improved polymerization process for making essentially nonagglomerated ethylene polymers, especially EPR polymers, based on the use of a stage-modified high activity vanadium catalyst, under polymerization conditions that normally would yield an undesirable amount of agglomerated polymer.

Process for making elastomeric ethylene-alpha-olefin polymers with

A method for preventing agglomeration of sticky polymers in a fluidized bed which comprises adding to said fluidized bed and 0.3 to about 80 weight percent based on the weight of the final product of an inert particulate material having a PDMS surface coating thereon.

Method for producing sticky polymers

A process for the production of ethylidene diacetate by the catalytic reaction of dimethyl acetal, methyl acetate and carbon monoxide in contact with a homogeneous catalyst system containing rhodium metal atom and lithium iodide.

Production of ethylidene diacetate from dimethyl acetal

A process for producing sticky polymers at polymerization reaction temperatures in excess of the softening temperature of the sticky polymers in a fluidized bed reactor catalyzed by a transition metal catalyst, which comprises conducting the polymerization reaction above the softening temperatures of the sticky polymers in the presence of about 0.3 to about 60 weight percent, based on the weight of the final product of an inlet particulate material having a mean particle size of from about 0.01 to about 10 micron meters whereby polymer agglomeration of the sticky polymers is maintained at a size suitable for continuously producing the sticky polymers.

Growing community of inventors

Bridgewater, NJ, United States of America

Edgar C Baker