Patents for C08F 4 - Polymerisation catalysts (50,749)
07/1991
07/24/1991EP0438132A2 Polymerization catalyst for olefins
07/24/1991EP0438068A2 Process for making propylene ethylene copolymers
07/24/1991EP0437897A2 Improved process for producing vanadium-arenes
07/24/1991CN1053244A Process and catalyst for producing syndiotactic polymers
07/24/1991CN1053243A Process for preparing ziegler-natta type catalyst
07/24/1991CN1053242A Process for preparing ziegler-natta type catalyst
07/24/1991CN1053241A Components and catalysts for polymerization of olefins
07/24/1991CN1053240A Catalyst for polymerization of olefine
07/23/1991US5034549 Reaction product of silanediol with dicyclopentadienyl zirconium compound
07/23/1991US5034485 Multifunctional cyclobutarene peroxide polymerization initiators
07/23/1991US5034484 Magnesium, halogen, titanium and silicon catalyst also containing aluminum
07/23/1991US5034482 Process for producing polymer by ring-opening polymerization
07/23/1991US5034481 Conducting the polymerization of ethylene in the presence of titanium catalyst and calcium or chromiun antistatic agents and alcohols
07/23/1991US5034480 Avoidance of colored impurities in the preparation of ultrahigh molecular weight ethylene polymers by means of titanium-containing catalyst system
07/23/1991US5034466 Polymer and process for making the same
07/23/1991US5034366 Vanadium trihalide and electron donor, a boron halide or alkyl aluminum modifier, a polysiloxane controller
07/23/1991US5034365 Silica supported polymerization catalyst
07/23/1991US5034364 Multiple chromium compound-containing catalyst composition and olefin polymerization therewith
07/23/1991US5034361 Catalyst precursor production
07/23/1991US5034305 Radiation-sensitive mixture
07/23/1991CA1286839C Polymerization process of propylene
07/23/1991CA1286838C Water treatment method for resin in a purge vessel
07/23/1991CA1286837C Polymerisation of olefins using a modified ziegler-natta catalyst
07/23/1991CA1286836C Process for the preparation of microsuspensions of homo-and copolymers latexes made of vinyl chloride, usable as seeding materials
07/20/1991WO1991010690A1 Polymerization process and the polymers thereof
07/20/1991CA2074094A1 Polymerization process and the polymers thereof
07/18/1991DE4001157A1 Propylene]-ethylene] copolymers - obtd. by polymerisation of propylene using ziegler catalyst, followed by polymerisation of propylene-ethylene mixt. with same catalyst
07/18/1991DE4000776A1 Neue unter luftausschluss lagerstabile, radikalisch polymerisierbare mehrstoffgemische und ihre verwendung New storage-stable under air exclusion, more radically polymerizable hydrocarbon mixtures and their use
07/17/1991EP0437264A1 Components and catalysts for the polymerization of olefins
07/17/1991EP0437263A1 Components and catalysts for the polymerization of olefins
07/17/1991EP0437080A1 Process for preparing a Ziegler-Natta type catalyst
07/17/1991EP0436801A1 Preparation of spherical magnesium alkoxide particles
07/17/1991EP0436775A2 New Polymers and copolymers and method and initiation system for their preparation
07/17/1991EP0436672A1 Magnesium oxide-supported ziegler catalyst modified with acid and higher alkanol, and process for preparing narrow mwd hdpe
07/17/1991CN1053070A Cocatalytic composition usable for polymerization of alpha-olefins
07/17/1991CN1013200B Alumina treated by silicon and/or fluorine
07/16/1991US5032688 Process for the preparation of aralkyl hydroperoxides
07/16/1991US5032653 Direct synthesis by cationic polymerization of nitrogen-containing polymers
07/16/1991US5032652 Supported vanadium catalyst for polymerization olefins and a process of preparing and use the same
07/16/1991US5032651 Method for producing olefin polymer blends utilizing a chromium-zirconium dual catalyst system
07/16/1991US5032563 Ziegler polymerization catalyst
07/16/1991US5032562 Compounds of magnesium, zirconium and titanium
07/16/1991US5032560 Reaction product of magnesium chloride, lewis base, alkylaluminum halide, and propylene
07/16/1991CA1286447C High molecular weight polyacrylamide synthesis
07/16/1991CA1286434C Vinyl monomer compositions with accelerated surface cure
07/13/1991CA2033964A1 Process for the preparation of spherical particles of magnesium alkoxide
07/11/1991WO1991009881A1 Process for preparation of a procatalyst composition for polymerization of olefins and use of the composition
07/11/1991DE4000543A1 Emulsion graft-copolymers with high grafting yield - obtd. by pre-activating aq. emulsion of graft substrate with initiator and oxygen, before adding the grafting monomers, etc.
07/11/1991CA2033809A1 Components and catalysts for the polymerization of olefins
07/11/1991CA2033808A1 Components and catalysts for the polymerization of olefins
07/10/1991EP0436423A1 Synthesis process for Ziegler type solid catalysts or for solid compositions of such catalytic solids, using a unique pivotable polyfunctional reactor and a magnetically driven agitator, usable among others, in such a reactor
07/10/1991EP0436399A2 Olefin polymerization catalyst and process for the polymerization of olefins
07/10/1991EP0436328A2 Method for polymerizing alpha-olefin
07/10/1991EP0436326A1 Catalyst and prepolymer used for the preparation of polyolefins
07/10/1991EP0436325A1 Process for preparing a ziegler-natta type catalyst
07/10/1991EP0436229A2 High activity vanadium-based catalyst
07/10/1991CN1052870A Solid catalyst components for olifin polymerization and processes for polymerization of olifin using same
07/09/1991US5030606 1-olefin comonomers having polar substituents
07/09/1991US5030605 Vanadium compound, alkylaluminum alkoxide
07/09/1991US5030431 Reacting aluminum salts and phosphate salts, neutrilizing with base, exchanging with acetone, alcohol or ethyl acetate and drying
07/09/1991CA1285927C Preparation of olefin polymerization catalyst component
07/05/1991CA2033028A1 Process for preparing a ziegler-natta type catalyst
07/04/1991CA2033029A1 Process for preparing a ziegler-natta type catalyst
07/03/1991WO1991009882A1 Supported ionic metallocene catalysts for olefin polymerization
07/03/1991EP0435627A2 Supported olefin polymerization catalyst
07/03/1991EP0435594A2 Photoinitiators
07/03/1991EP0435557A2 Dimethylaluminum chloride-activated olefin polymerisation catalyst composition
07/03/1991EP0435515A1 Process for the gas phase (co-)polymerization of ethylene
07/03/1991EP0435514A2 Catalyst and prepolymer used for the preparation of polyolefins
07/03/1991EP0435345A1 High activity vanadium-based catalyst
07/03/1991EP0435332A2 Solid catalyst components for olefin polymerization and processes for the polymerization of olefin using same
07/03/1991EP0435251A1 Preparation of very low molecular weight polyethylene in a fluidized bed
07/03/1991EP0435250A2 Preparation of very low molecular weight polyethylene in a fluidized bed
07/03/1991EP0435171A2 Sliding property improving agent and process for making the same
07/03/1991EP0435146A2 Pyridinium metathesis catalysts for cycloolefin polymerization
07/03/1991EP0435116A2 Process for the purification of polymers of isobutylene
07/03/1991CN1052681A Components and catalysts for polymerization of olefins
07/03/1991CN1052680A Anionic polymerization catalyst compositions
07/02/1991US5028674 Methanol copolymerization of ethylene
07/02/1991US5028673 Olefin polymerization
07/02/1991US5028672 Catalyst and process for polymerization of norbornene derivatives
07/02/1991US5028671 Using coordination catalyst contining magnesium, titanium, halogen compounds with organoaluminum and organosilicon compounds
07/02/1991US5028669 Installation and process for the gas-phase polymerization of olefins in a fluidized-bed reactor with the introduction of an organometallic compound
07/02/1991US5028574 Composition and method for friction loss reduction
07/02/1991CA1285695C Easily soluble polyethylene powder for the preparation of fibers or films having high strength and high elastic modulus
07/02/1991CA1285686C Curable compositions containing metallocene complexes, the activated precursors obtainable therefrom and the use thereof
06/1991
06/30/1991CA2033432A1 High activity vanadium-based catalyst
06/30/1991CA2033426A1 Catalyst for regulating the molecular weight distribution of ethylene polymers
06/30/1991CA2033423A1 High activity vanadium-based catalyst
06/29/1991WO1991009887A1 Process for producing olefin polymerization catalyst component and polyolefin
06/29/1991CA2033351A1 Preparation of very low molecular weight polyethylene in a fluidized bed
06/29/1991CA2033350A1 Preparation of very low molecular weight polyethyelene in a fluidized bed
06/28/1991CA2019908A1 Graft copolymers and the method and initiation system for preparation thereof
06/27/1991WO1991009065A1 Stereoregular cyclo-olefinic polymers and method
06/27/1991CA2032721A1 Zirconium-based catalyst composition for polymerizing olefins and polymerization therewith
06/27/1991CA2032543A1 Dimethylaluminum chloride-activated olefin polymerisation catalyst composition
06/26/1991EP0434469A2 Hydrogenation catalyst composition and process for hydrogenating olefinically unsaturated polymer using the same
06/26/1991EP0434334A1 Dental compositions, a method of making shaped dental articals via photoiniferter polymerization of the dental compositions, and shaped dental articles produced thereby
06/26/1991EP0434316A1 Processes
06/26/1991EP0434131A2 Anionic polymerization catalyst compositions