Patents for C08F 10 - Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond (36,091)
01/1990
01/10/1990EP0349772A2 Process for preparing a polypropylene
01/10/1990EP0349639A1 Process for preparing alpha-olefin polymers.
01/09/1990US4892914 Catalysts prepared from tetrakis(dialkylamide or diarylamide) derivatives of titanium and polymerization of olefins therewith
01/09/1990US4892853 Ethylene polymerization catalyst
01/09/1990US4892852 Coordination catalyst for olefin polymerization
01/09/1990US4892851 Process and catalyst for producing syndiotactic polyolefins
01/09/1990CA1264400A1 Process for polymerizing a monomer charge
01/09/1990CA1264399A1 Process for the preparation of polyolefins
01/09/1990CA1264397A1 Process for producing propylene polymer
01/03/1990EP0349146A2 Process for preparing ultra-high molecular weight polyethylene
01/02/1990US4891411 Process for producing olefin polymers and catalyst used therein
01/02/1990CA1264159A1 Process for producing olefin polymer
12/1989
12/28/1989WO1989012662A1 Olefinic oligomers having lubricating properties and process of making such oligomers
12/28/1989WO1989012649A2 Process for preparing a catalyst for the polymerization of olefins
12/27/1989EP0348126A2 Non-aqueous process for the preparation of alumoxanes
12/27/1989EP0347442A1 Modified silica based catalyst
12/27/1989CN1038284A Process for prepn. of high purity alpha-olefin polymers
12/20/1989CN1038105A Cage polymerization of biological materials /polyolefine
12/19/1989US4888704 Advanced control strategies for melt flow rate and reactor concentration in the polypropylene slurry process
12/19/1989US4888318 Catalyst composition for polymerizing alpha-olefins
12/19/1989CA1263997A1 Process for polymerizing a monomer charge
12/19/1989CA1263996A1 Process for polymerizing a monomer charge
12/19/1989CA1263995A1 Process for polymerizing a monomer charge
12/13/1989CN1006071B Catalyst system used for alkene poly-and copolymerization
12/12/1989US4886771 Catalyst for regulating the molecular weight distribution of ethylene polymers
12/12/1989CA1263858A1 Catalyst components, a catalyst and a process for the polymerization of olefins
12/06/1989EP0345069A2 Improved coextrudable adhesive for polystyrene, and products therefrom
12/06/1989EP0345062A2 A method for the activation of a carrier for a polymerization catalyst
12/06/1989EP0344887A2 Silicon bridged transition metal compounds
12/06/1989EP0344755A1 Components and catalysts for the polymerization of olefins
12/06/1989EP0206893B1 Process for preparing a transistion metal component for an olefin polymerization catalytic system
12/05/1989US4885349 Solid porous carrier containing organo-magnesium compound
11/1989
11/29/1989CN1037520A Improvements in fluidized bed polymerization reactors
11/28/1989US4883848 Coordination catalyst containing titanium and magnesium and silicon
11/28/1989CA1263498A1 Liquid ethylene-type random copolymer, process for production thereof, and use thereof
11/28/1989CA1263371A1 EXHAUSTIVELY PREPOLYMERIZED SUPPORTED .alpha.-OLEFIN POLYMERIZATION CATALYST
11/28/1989CA1263370A1 CATALYST AND PROCESS FOR PRODUCING .alpha.-OLEFIN POLYMERS USING THE SAME
11/28/1989CA1263368A1 Polymerization catalyst, production and use
11/28/1989CA1263367A1 Polymerization catalyst, production and use
11/28/1989CA1263366A1 Catalysts for the polymerization of olefins
11/28/1989CA1263361A1 Production of catalyst component for olefin polymerization
11/22/1989CN1037347A Method for decreasing swell properties of alpha olefins
11/22/1989CN1037346A 齐格勒-纳塔催化剂 Ziegler - Natta catalyst
11/21/1989US4882400 Process for gas phase polymerization of olefins in a fluidized bed reactor
11/21/1989US4882108 Method for producing polypropylene foam
11/21/1989CA1263104A1 Polymerization catalyst, production and use
11/21/1989CA1263103A1 Polymerization catalyst, production and use
11/16/1989WO1989010942A1 Titanium catalyst component, process for its preparation, catalyst for producing ethylenic polymer containing said titanium catalyst component, and process for producing ethylenic polymer
11/15/1989EP0341540A2 Process for the low-pressure copolymerization of ethylene with alpha-olefines, and ethylene copolymerisates having a very little non-reacted monomer content
11/15/1989EP0341539A2 Catalyst for ethylene polymerisation, process for its preparation and use of the ethylene polymers in preparing foils with a low tendency to block
11/15/1989CN1037157A 齐格勒-纳塔型催化剂 Ziegler - Natta catalyst
11/14/1989CA1262997A1 Random 1-butene copolymer
11/08/1989EP0341012A2 Uniform molecular weight polymers
11/08/1989EP0340688A2 Process for the preparation of high purity alpha-olefin polymers
11/08/1989CN1005716B Preparation for olefin polymerizing carrier catalysts system
11/07/1989US4879359 Process for polymerising ethylene using a chromium oxide catalyst
11/07/1989US4879141 In-reactor stabilization of polyolefins via coated stabilizers
11/07/1989EP0324835A4 Propylene polymerization catalyst and method.
11/07/1989CA1262717A1 Catalyst component for olefin polymerization
11/07/1989CA1262716A1 Catalyst component for olefin polymerization
11/02/1989EP0339804A2 Modified polypropylene, process for making article made from the same
11/02/1989EP0339571A1 Process for preparation of ethylene polymers
11/01/1989CN1036776A Process for producing polypropylene and stretched polypropylene film
10/1989
10/31/1989US4877763 Supported chromium oxide/boron catalyst
10/31/1989US4877587 Fluidized bed polymerization reactors
10/31/1989CA1262599A1 Gas fluidised bed terpolymerisation of olefins
10/25/1989EP0338676A1 Ziegler-natta catalyst
10/25/1989EP0338044A1 Preparation of polyhydrocarbylaluminoxanes
10/24/1989US4876321 Coordination catalyst of grignard compound, titanium component, alcohol and activators;lldpe of narrow molecular weight distribution
10/24/1989US4876320 Process for reducing sheeting during polymerization of alpha-olefins
10/24/1989US4876230 Dissociation of magnesium alkoxide from alcohol; metathesis
10/24/1989US4876229 Catalyst composition for polymerizing olefins of narrow molecular weight distribution and polymerization therewith
10/18/1989EP0337365A2 Method for decreasing swell properties of alpha olefins
10/18/1989EP0197319B1 Process for preparing optically active polyolefines
10/18/1989CN1036388A Modifed silica based catalyst
10/17/1989US4874880 Olefin polymerization catalyst
10/17/1989US4874737 Treating with a silane alkoxide at or above temperatures at which the alcohol product dissociates prior to metathesis
10/17/1989US4874734 Using solution of aluminoxane, particulate carrier with transition metal compound, solvent in which aluminoxane is insoluble
10/17/1989CA1262344A1 Supported polyolefin catalyst components and methods of making and using same
10/11/1989EP0336664A2 Improved dispersant additives derived from amido-amine adducts
10/11/1989EP0336593A1 Method for preparing a supported metallocene alumoxane catalyst
10/11/1989EP0336545A1 Ziegler-Natta catalyst
10/11/1989EP0336128A2 Process for preparing an alpha-olefin polymer
10/11/1989EP0336127A2 Process for preparing poly-alpha-olefins
10/10/1989US4873300 Zeigler natta catalyst to produce varying particle size polyme r
10/05/1989WO1989009237A1 Method of preparing a silica gel supported metallocene alumoxane catalyst
10/04/1989EP0335551A2 A process for the preparation of a supported polymerization catalyst and an apparatus for use in the process
10/04/1989CN1036022A Improved processing isoolefin polymers
10/04/1989CN1036016A Polymerization process of olefine
10/03/1989US4871704 Pentadiene, alkali metal, 4b metal, and aluminoxane
10/03/1989US4871523 Halogenated organic compounds; catalyst for olefin copolymerization
09/1989
09/27/1989EP0334411A1 Process for stereospecific polymerization of alpha-olefins and catalytic system to be used in this process
09/26/1989US4870144 Process for producing an isobutylene polymer having functional terminal end groups
09/26/1989US4870043 Catalysts for the polymerization of olefins
09/26/1989US4870042 Hydropyrazolyl borate metal complex
09/26/1989US4870040 Olefin polymerization catalysts from soluble magnesium alkoxides made from alkyl or aryl magnesium mixed with a branched or aromatic aldehyde
09/26/1989US4870039 Olefin polymerization catalysts from soluble magnesium alkoxides made from mixed magnesium alkyls and aryls
09/26/1989CA1262009A1 Ethylene homopolymer and copolymer polymerization process and the products produced therefrom
09/26/1989CA1261545A1 Process for producing ethylene copolymer
09/26/1989CA1261544A1 Closed loop recycle of vent gas in polymerization process