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WO/2011/006278A1 |
A magnesium halide adduct represented by the formula (I): MgX2 mROH nE pH2O, in which X is chlorine, bromine, a C1-C12 alkoxy, a C3-C10 cycloalkoxy or a C6-C10 aryloxy, with the proviso that at least one X is chlorine or bromine; R is a ...
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WO/2011/008197A1 |
The present invention relates to the high pressure polymerization of ethylene and optionally comonomers using organic peroxides as polymerization initiators. The peroxide initiators are dissolved in a C3 to C6 hydrocarbon solvent. In one...
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WO/2011/006111A1 |
A gas phase polymerization process for producing a polyethylene polymer including polymerizing ethylene and optionally at least one α-olefin comonomer in a fluidized bed reactor under condensed mode operating conditions using a Cr+6-bas...
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WO/2011/005852A1 |
The present disclosure provides propylene-based polymers which exhibit a strain hardening distribution factor that is less than zero and/or a strain hardening factor greater than 1.5. The propylene-based polymers are rheology-modified by...
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WO/2011/004676A1 |
Polymerization catalysts prepared by a process which comprises bringing (A) a transition metal compound, (B) a solid boron compound which, together with the component (A), can form an ion pair, (C) an organoaluminum compound, and (D) one...
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WO/2011/002497A1 |
The present invention provides dual catalyst systems and polymerization processes employing these dual catalyst systems. The disclosed polymerization processes can produce olefin polymers at higher production rates, and these olefin poly...
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WO/2011/000925A1 |
The present invention relates to a process for producing steam using heat recovered from a polymerization reaction. In particular, the present invention relates to a process for producing steam using heat recovered from a polymerization ...
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WO/2011/002986A1 |
New ethylene polymers having low levels of long chain branching are disclosed. Films and film layers made form these polymers have good hot tack strength over a wide range of temperatures, making them good materials for packaging applica...
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WO/2011/002498A1 |
The present invention provides dual catalyst systems containing a metallocene catalyst and a hydrogen scavenging catalyst, and polymerization processes employing these dual catalyst systems. Due to a reduction in hydrogen levels in the p...
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WO/2011/002998A1 |
Ethylenic polymers comprising low levels of total unsaturation are disclosed. Compositions using such ethylene polymers and fabricated articles made from them are also disclosed.
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WO/2010/149812A1 |
Homogeneous catalyst based on titanium compounds of (R1Cp)(R2Cp)Ti (PhOR3)2 type, in which Cp is a cyclopentadienyl group, R1 and R2 are identical or different (C3-C10) alkyl radicals, Ph is a phenyl group and OR3 is an alkoxy group. Fur...
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WO/2010/151315A1 |
The present invention provides polymerization catalyst compositions employing novel heterodinuclear metallocene compounds. Methods for making these new dinuclear metallocene compounds and for using such compounds in catalyst compositions...
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WO/2010/151433A1 |
The present invention generally relates to a process that selectively polymerizes ethylene in the presence of an alpha-olefin, and a precatalyst and catalyst useful in such processes.
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WO/2010/150410A1 |
Disclosed is a polyethylene resin exhibiting excellent moldability and durability, while having an excellent balance between impact resistance and rigidity. Also disclosed is a hollow plastic molded article which uses the resin and exhi...
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WO/2010/151508A1 |
Controlled rheology (CR) polypropylene resins are prepared by a process comprising the step of contacting under scission conditions a non-CR-polypropylene resin having a low melt flow rate (MFR) with cyclic peroxide. The CR polypropylene...
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WO/2010/146122A1 |
The invention relates to concentrated solutions of mixed alkaline-earth alkoxide compounds M(OCH2R6)2-x(OR7)x and an aluminum compound AI(OCH2R6)3-y(OR7)y in aprotic solvents, wherein: M is an alkaline-earth metal selected from among Mg,...
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WO/2010/146072A1 |
Catalyst components for the polymerization of olefins CH2=CHR wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms, comprising Mg, Ti, Cl and a compound (L) or its derivatives, selected from condensed cyclic structures...
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WO/2010/146145A1 |
The present invention relates to a process for the polymerization of an olefin monomer. In particular, the present invention relates to a process for the polymerization of an olefin monomer and one or more optional comonomers in presence...
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WO/2010/146074A1 |
A process for the preparation of propylene polymer compositions carried out in the presence of a catalyst system comprising (a) a solid catalyst component having average particle size ranging from 15 to 80 μm comprising a magnesium hali...
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WO/2010/147993A1 |
This disclosure provides for alpha olefin oligomers and polyalphaolefins (or PAOs) and methods of making the alpha olefin oligomers and PAOs. This disclosure encompasses metallocene- based alpha olefin oligomerization catalyst systems, i...
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WO/2010/148381A2 |
The present invention relates to olefin polymerization catalysts including a novel phenoxyaminetitanium(II) alkene complex, rac-Lig2 TiBn, which is inactive for olefin polymerization upon benzyl abstraction, treatment with ethylene leads...
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WO/2010/144080A1 |
Disclosed are catalyst systems and methods of making the catalyst systems/supports for the polymerization of an olefin containing a solid titanium catalyst component and an antistatic agent, Also disclosed are methods of making a polyole...
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WO/2010/142549A1 |
The present invention relates to catalysts systems for the polymerization of ethylene and its mixtures with olefins CH2=CHR, wherein R is an alkyl, cycloalkyl or aryl radical having 1-12 carbon atoms, comprising (A) a solid catalyst comp...
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WO/2010/139419A2 |
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WO/2010/139684A1 |
The invention relates to a compound made of a protonated aromatic and a weakly coordinating anion of the general formula HAr+ An-, in which HAr+ denotes a protonated mononuclear or condensed polynuclear aromatic structure having one or m...
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WO/2010/141557A1 |
A process is taught, comprising polymerizing ethylene in the presence of a catalyst to form a crystalline ethylene-based polymer having a crystallinity of at least 50% as determined by DSC Crystallinity in a first reactor or a first part...
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WO/2010/136202A1 |
The invention is directed to the wax removal from a low pressure slurry process for the production of bimodal high density polyethylene comprising a polymerisation stage, a powder drying stage, an extrusion and pellet handling stage, rec...
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WO/2010/136173A1 |
The invention relates to a process for preparing a polyolefin doped with a stabilizer, preferably an antioxidant, wherein a polymerization of an olefin is performed in the presence of a stabilizer, preferably an antioxidant, and of a cat...
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WO/2010/133081A1 |
An inorganic/organic composite support includes an inert inorganic material, a complex compound composed of a polylol and a magnesium halide, and an organic polymer containing a polar functional group. Said complex compound loaded with t...
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WO/2010/132811A1 |
A polymerization catalyst system and polymerization processes using the catalyst systems are disclosed. The polymerization catalyst systems may include a) a first catalyst compound, and b) a second catalyst compound, wherein the first ca...
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WO/2010/132197A1 |
The invention concerns methods for polymerization of olefins comprising contacting one or more monomers selected from ethylene and α-olefins with a supported single site catalyst in the presence of one or more magnesium alkyl compounds ...
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WO/2010/129514A2 |
Oxidation resistant crosslinked ultrahigh molecular weight polyethylene (UHMWPE) is described, wherein at least two different additives in the manufacture synergistically increase the oxidation resistance of crosslinked UHMWPE. This allo...
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WO/2010/127997A2 |
Process for the preparation of a catalyst being in the form of solid particles comprising the steps of •preparing a solution of a complex of a metal which is selected from one of the groups 1 to 3 of the periodic table (IUPAC) and an e...
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WO/2010/127988A1 |
The present invention relates to a process for preparing an activating support for metallocene complexes in the polymerisation of olefins comprising the steps of: I) providing a support consisting in particles formed from at least one po...
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WO/2010/128826A2 |
The present invention relates to an olefin polymer and to a fiber including same. More specifically, an olefin polymer according to the present invention is characterized by: 1) a density of 0.94 to 0.96 g/cm3; 2) a melt index (MI: 190°...
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WO/2010/125022A1 |
Ziegler-Natta catalyzed linear low density polyethylene which satisfies the following conditions: a) a density, according to ISO 1183, of from 900 to 925 kg/m3, b) a C4-C10-comonomer content, determined by Fourier transform infrared spec...
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WO/2010/125035A1 |
The invention relates to compositions of the formula [M(L)a(Z)b]m+ • [AI(OR1)4]- m, in which M is a metal atom, R1 independently is (i) C7 to C18 arylalkyl residues with 1 to 9 fluorine atoms each, wherein said fluorine atoms do not em...
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WO/2010/123775A1 |
Disclosed are procatalyst compositions having an internal electron donor which includes an adamantanedicarboxylate and optionally an electron donor component. Ziegler- Natta catalyst compositions containing the present procatalyst compos...
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WO/2010/123033A1 |
Disclosed is a method for producing an olefin polymer, with which an olefin polymer having excellent particle properties can be produced in high activity, dirt on the wall of a polymerization vessel or on the inside of the polymerization...
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WO/2010/123748A1 |
Methods and systems for regenerating a purification bed take advantage of inert gas pressure, such as, for example, supplied by a pipeline. The inert gas (102) is provided at a first pressure and combined with a recycle composition (116)...
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WO/2010/118962A1 |
A process for the preparation of 1-butene homopolymers or 1-butene/alpha olefin copolymers wherein the alpha olefins are selected from ethylene, propylene or alpha olefins of formula CH2=CHZ wherein Z is a C3-C20 alkyl radical, comprisin...
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WO/2010/118641A1 |
A process for preparing a solid particle-type catalyst component used for olefin polymerization which contains magnesium, titanium, halogen, and an electron donor as essential ingredients, a catalyst component obtained by the process, an...
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WO/2010/120973A1 |
Disclosed are procatalyst compositions having an internal electron donor which includes a silyl glutarate and optionally an electron donor component. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exh...
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WO/2010/115614A1 |
The invention is directed to a slurry phase polymerisation process for the preparation of ethylene-α-olefin copolymers by polymerising ethylene in the presence of a chromium containing catalyst and a diluent. The polymerisation takes pl...
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WO/2010/115613A1 |
The invention is directed to a process for the production of high density polyethylene by polymerisation of ethylene in the presence of a supported chromium oxide based catalyst and an activator characterised in that the activator compri...
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WO/2010/117028A1 |
Disclosed is an α-olefin ologimer comprising 90 mol% or more of an α-olefin unit having 6 or more carbon atoms, wherein the mass ratio of a dimer, a trimer, and a tetramer is defined, a Schulz-Flory distribution is not followed, and th...
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WO/2010/112165A1 |
The invention refers to a catalyst system for the polymerization of olefins including a diorganohydroborane molecular weight modifier. By addition of diorganohydroborane to the catalyst system it is possible to control the molecular weig...
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WO/2010/111869A1 |
A multilayer film is disclosed, comprising at least two layers, wherein a first layer comprises a first interpolymer of ethylene and at least one alpha-olefin, characterized wherein the first interpolymer has a density of less than 0.925...
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WO/2010/112543A1 |
The present invention relates to a method for preparing and extruding a bimodal polyethylene product, which comprises a first polyethylene fraction and a second polyethylene fraction having a different molecular weight than the first pol...
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WO/2010/114069A1 |
Disclosed is a method for preventing fouling in chemical equipment by adding a fouling inhibitor, which includes a polyoxyalkylene polymer represented by formula (1) or (13) having a number-average molecular weight of no more than 30,000...
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