Union Carbide Chemicals & Plastics Technology Corporation

Union Carbide Chemicals and Plastics Company, Inc.

Union Carbide Corporation

Univation Technologies, LLC

Plastics Technology Corporation

Union Carbide Chemicals

George N Foster

Herbert E Petty

Robert Harold Vogel

Scott Hanley Wasserman

Roswell E King, Iii

Charles H Blevins

Walter Thomas Reichle

Edgar C Baker

Day-Chyuan Lee

Tong Chen

James LaMonte Adams

Frederick John Karol

Laurence Herbert Gross

Michael A Corwin

Gregory T Whiteker

Stuart J Kurtz

Anthony J Gioffre

Robert J Bernier

Richard Bruce Metzler

Aaron S Rhee

Seung J Rhee

Janice E Sanders

Nicholas Joseph Conti

Ethylene inter-polymer blends

A polymer of the invention comprising the comonomers ethylene, one or more alpha-olefins having 3 to 20 carbon atoms, and one or more cyclic dienes having up to 30 carbon atoms, said polymer having a density of at least 0.890 gram per cubic centimeter; long chain branching; a plurality of double bonds; an Mw/Mn ratio ratio (PDI) of at least 2.5; a flow activation energy of greater than about 6.5 kcal/mol; and a Relaxation Spectrum Index (RSI), PDI, and Melt Index (MI), such that RSI&middot;MI,>2.7 and RSI&middot;MI,&middot;PDI,is in the range of about 0.8 to about 60, when a and b are about 0.6 and minus 1.2, respectively.

Enhanced crosslinking terpolymer

Ethylene polymers having a) a Polydispersity Index of about 2 to about 4; b) a melt index, MI, and Relaxation Spectrum Index, RSI, such that (RSI)(MI.sup.0.6) is about 2.5 to about 6.5; c) a Crystallizable Chain Length Distribution Index, L.sub.w /L.sub.n, of about 1.0 to about 9; and d) a density, .rho., and a percent haze when fabricated into films such that the percent haze is less than 370.rho.-330, are provided. These ethylene polymers advantageously combine superior clarity and toughness with low extractables and enhanced processing ease.

Ethylene polymers having superior clarity enhanced toughness, low

Ethylene polymers having enhanced processing ease

An ethylene polymer having a Polydispersity Index of at least about 3.0, a melt index, MI, and a Relaxation Spectrum Index, RSI, such that (RSI)(MI.sup..alpha.) is greater than about 26 when .alpha. is about 0.7, and a Crystallizable Chain Length Distribution Index, L.sub.w /L.sub.n, less than about 3 is provided. Such ethylene polymer has processability equivalent or superior to even conventional high pressure polyethylene at similar melt index, yet need not be made under high pressure reaction conditions.

Ethylene polymers having enhanced processability

A process comprising: (a) introducing a mixture comprising one or more alpha-olefins, carbon monoxide, and, optionally, one or more dienes into a reaction zone under polymerization conditions; (b) contacting the mixture with a catalyst prepared by a process comprising:

Process for the manufacture of copolymers of ethylene and carbon monoxide

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 multipurpose additive system comprising

Multipurpose additive system for thermoplastic resins

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

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 polymer impurity deactivator comprising a metal hydroxide, a hydrotalcite, or another metal oxide compound, or mixtures thereof, each of which compounds or mixtures

Polymer impurity deactivators

The present invention relates to olefin polymer compositions which can be extruded into film material characterized by improved stability and optical properties. In particular, this application is directed olefin polymer compositions containing specific polyorganosiloxanes bearing a hydroxyl functionality.

Olefin polymer compositions containing polyorganosiloxanes and the use

The present invention relates to olefin polymers stabilized with polydialkylsiloxanes containing pendant sterically hindered phenol moieties. The compounds are represented by the general formula MD.sub.x D*.sub.y M.sub.A 2 wherein M=R'R.sub.2 SiO.sub.1/2 ##STR1##

Polymer compositions stabilized with polydialkylsiloxanes containing

A polysiloxane having pendant, sterically-hindered heterocyclic moieties attached to a siloxane chain, and their use in stabilizing synthetic polymer compositions.

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Bloomsbury, NJ, United States of America

George N Foster