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WO/2011/120336A1 |
Disclosed are a catalyst composition for oligomerization of ethylene and processes of oligomerization, wherein the catalyst composition comprises chloride of Fe (II), Co (II) or Ni (II) complexed with 2-imino-1, 10-phenanthroline as the ...
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WO/2011/119116A1 |
A self-assembled olefin polymerization catalyst comprising a transition metal complex according to formula (I) A-[(L2(MXn)p(MXn-L1(MXn)q-MXn-B)r-MXn)y-(L1(MXn)t(MXn-L2(MXn
)u-MXn-A')vMXn)w]z-B (I) wherein each M is independently a transi...
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WO/2011/116455A1 |
An olefin polymerization catalyst is prepared by (a) in a diluent, combining a diorganomagnesium compound with less than 2 molar equivalents of a first source of chloride to produce a "chloride deficient" magnesium chloride support; (b) ...
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WO/2011/117224A1 |
Process for producing a polypropylene composition, said composition comprises units derived from propylene and at least one C2 to C20 a-olefin other than propylene in an amount of at least 4.0 wt- % measured by Fourier transform infrared...
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WO/2011/115966A2 |
The present invention generally relates to a method for sequestering carbon dioxide. Biomass is converted into paraffinic hydrocarbons. The paraffinic hydrocarbons are steam cracked into olefins. The olefins are polymerized into non-biod...
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WO/2011/111980A2 |
Provided are a supported metallocene catalyst, a method for preparing the same and a method for preparing polyolefin using the same. Specifically, provided are a supported metallocene catalyst including a carrier, a first co-catalyst lay...
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WO/2011/111979A2 |
The present invention relates to a method for preparing a supported metallocene catalyst, and a method for preparing polyolefin using the same, in which the supported metallocene catalyst prepared from the simple process according to the...
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WO/2011/106863A1 |
Polyethylene wax having a number average molecular weight of from 1,000 to 10,000 and a molecular weight distribution of from 2 to 4 may be produced using a phosphinimine catalyst under "forced" solution polymerization conditions. The "f...
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WO/2011/107560A1 |
A process for preparing a supported catalyst system comprising the following steps: a. titanating a silica-containing catalyst support having a specific surface area of from 150 m2/g to 800 m2/g, preferably 280 to 600 m2/g, with at least...
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WO/2011/109241A1 |
A method for preparing a supported catalyst suitable for use in slurry and gas-phase olefin polymerizations is disclosed. An alumoxane-treated silica is combined with a monocyclopentadienyl Group 6 metal complex that comprises a chelatin...
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WO/2011/105497A1 |
Disclosed is a mixed magnesium dialkoxide particulate, which contains magnesium diethoxide, achieved by a direct solid-liquid reaction between magnesium metal having an average particle diameter of between 50 μm and 500 μm, and at leas...
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WO/2011/106494A1 |
Disclosed are procatalyst compositions having an internal electron donor which includes a substituted amide ester and optionally an electron donor component. Ziegler- Natta catalyst compositions containing the present procatalyst composi...
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WO/2011/106497A1 |
Disclosed are halogenated amide esters that are suitable as internal electron donors in procatalyst compositions. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exhibit improved catalyst activity and/...
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WO/2011/106500A1 |
Disclosed is a process for producing a procatalyst composition having an amide ester internal electron donor. The process includes pre-halogenating a procatalyst precursor before reaction with the amide ester and forming the procatalyst ...
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WO/2011/103402A1 |
Catalyst systems and methods for making and using the same. The catalyst system can include a single site catalyst compound, a support comprising fluorinated alumina, and an aluminoxane. The aluminoxane can be present in an amount of abo...
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WO/2011/101281A1 |
The invention relates to the production of highly reactive isobutene homo or copolymers having a content of vinylidene double bonds per polyisobutene chain termination of at least 50 mol % and a polydispersity of preferably 1.05 to less ...
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WO/2011/103280A1 |
Methods for shutting down and restarting polymerization in a gas phase polymerization reactor are provided. The method can include introducing a polymerization neutralizer to the reactor in an amount sufficient to stop polymerization the...
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WO/2011/099584A1 |
Disclosed is an ethylene homopolymer or an ethylene and an α-olefin copolymer catalyst which includes a complex represented by formula (1). (In the formula: n is 2 or 3; R1 and R2 are independently an optionally substituted alkyl group ...
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WO/2011/097699A1 |
The treatment of a reactor for the gas phase, slurry, solution or high pressure polymerization of ethylene, optionally with comonomers, with a gas comprising not less than 50 volume% hydrogen at a temperature greater than 185 C for time ...
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WO/2011/099583A1 |
Disclosed is a stereoselective olefin polymerization catalyst which includes a complex represented by formula (1). (In the formula: n is 2 or 3; R1 and R2 are independently an optionally substituted alkyl group or a halogen atom; L is a ...
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WO/2011/095629A1 |
The invention relates to a process for the polymerisation of ethylene to produce a polyethylene resin in at least two slurry loop reactors connected to each other in series, the resin having a bimodal molecular weight distribution, a mol...
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WO/2011/095532A1 |
The invention relates to a process for preparing polyolefin in a loop reactor. The polymer is prepared by polymerizing olefin monomers in the presence of a catalyst to produce a polyolefin slurry while pumping said slurry through said lo...
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WO/2011/097119A1 |
Embodiments of the present application provide a method for manufacturing a polyolefin and a system for implementing the method. The method comprises combining a catalyst with a diluent mixture containing a diluent and an olefin monomer ...
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WO/2011/092306A1 |
An injection stretch blow moulded container prepared essentially from polyethylene prepared in the presence of a chromium-based catalyst system, the polyethylene having a density of from 0.950 to 0.965 g/cm3, measured following the metho...
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WO/2011/093295A1 |
Disclosed is an α-olefin (co)polymer characterized by being synthesized using a metallocene catalyst and by fulfilling conditions (a') and (b') below; also disclosed are a hydride of said polymer, and a high-viscosity lubricant with exc...
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WO/2011/091929A1 |
The present invention relates to a process for the gas phase polymerisation of olefins, and, in particular, to a process for the gas phase polymerisation of olefins with recycle of fines to the reaction zone.
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WO/2011/093748A1 |
The invention relates to the field of producing polymers and copolymers of olefin oligomers produced by a trimerization reaction of olefin monomers. What is described is: a process which comprises producing olefin oligomers with the aid ...
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WO/2011/090132A1 |
A non-woven fabric produced using a polypropylene resin composition containing a specific low-crystallinity polypropylene, in which the denier values of fibers contained therein can be reduced and the dispersibility of the fibers is exce...
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WO/2011/088754A1 |
A method for preparing propylene polymer of high melt strength using direct polymerization method is provided, which comprises in different propylene polymerization reaction stages operated in series, according to the requirements of dif...
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WO/2011/090914A1 |
The instant invention provides a method for improving the bubble stability of a polyethylene composition suitable for blown film extrusion process. The method for improving the bubble stability of a polyethylene composition suitable for ...
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WO/2011/088990A1 |
The invention is directed to a process for the polymerization of ethylene in the presence of a catalyst comprising a Ti, Zr, Hf or V metal centre; and a ligand according to Formula (I), in which B = -CH2-, -CH2CH2-, -CH=CH-, 1,2-phenylen...
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WO/2011/087731A1 |
The disclosure provides a plant for the continuous solution polymerization of a feed comprising one or more olefin monomers in a solvent, e.g., hydrocarbon solvent, in which the plant comprises means for separating solvent from the polym...
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WO/2011/087728A2 |
The invention provides a plant for the continuous solution polymerization of one or more monomers in a solvent, e.g., a hydrocarbon solvent. In one aspect, the plant comprises a high pressure pump and at least one heat exchanger downstre...
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WO/2011/087520A1 |
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/2011/084691A2 |
The present invention relates to catalyst systems containing solid catalyst components comprising titanium, magnesium, halogen and a 1,8-naphthyl diaryloate internal electron donor compound; organoaluminum compounds and alkyl benzoate de...
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WO/2011/085379A1 |
The present invention is a method for increasing the melt strength of a polyethylene resin comprising reacting the polyethylene resin with a free radical generator with a decomposition energy in between -50 kJoule/mole and -250 kJoules/m...
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WO/2011/085371A1 |
The present invention is an ethylene-based polymer comprising reacting a polyethylene resin with an alkoxy amine derivative corresponding to the formula: (R1)(R2)N-O-R3, where R1 and R2 are each independently of one another, hydrogen, C4...
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WO/2011/085377A1 |
The present invention is a film having a thickness greater than 100 microns comprising from 10 to 100 percent by weight of a polyethylene polymer made by the process of a) selecting a target polyethylene resin having a density, as determ...
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WO/2011/084628A1 |
The present invention relates to an improvement for gas phase olefin polymerization process under two or more different flow regimes. The process involves adding a mixed electron donor system to a reactor having two or more different flo...
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WO/2011/085375A1 |
The present invention is a method for producing a film particularly well suited for shrink film applications, said method comprising the steps of selecting a target polyethylene resin and then increasing the melt strength of the polyethy...
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WO/2011/081405A2 |
The present invention relates to a production method for a catalyst for polyolefin polymerisation. The production method according to the present invention comprises the steps of: a) producing a magnesium halide precursor solution by dis...
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WO/2011/080128A1 |
A process for the production of a corona-treated polyolefin film comprising the gas-phase polymerization of one or more α-olefins in the presence of a polymerization catalyst and an antistatic agent having a molecular weight higher than...
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WO/2011/081404A2 |
The present invention relates to a production method for a catalyst for polyolefin polymerisation and to a catalyst for polyolefin polymerisation obtained by means of the same, and more particularly relates to a production method for a c...
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WO/2011/081460A2 |
The present invention relates to a Ziegler-natta catalyst for olefin polymerization which can make polymers with high activity, wide molecular weight distribution, and low monomer content using the compound of equation 3 as an internal e...
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WO/2011/081407A2 |
The present invention relates to a preparation method of a solid catalyst for polypropylene polymerization, comprising: a) reacting a magnesium halide compound with alcohol and adding a phthalic acid compound to prepare a magnesium compo...
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WO/2011/076692A1 |
A catalyst component for the polymerization of olefins comprising Mg, Ti and Cl obtained by a process comprising the following steps: a) reacting a precursor of formula MgCl2.mEtOH, wherein m is equal to, or lower than, 1.5 having a poro...
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WO/2011/079042A2 |
This disclosure relates to a liquid syndiotactic polyalphaolefϊn, sPAO, comprising one or more C4 to C24 monomers, said sPAO having: a) an rr triad content of 5 to 50 % as measured by 13C NMR; b) an mr triad content of 25 to 60 % as mea...
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WO/2011/076372A1 |
Process for the preparation of ethylene homopolymers or copolymers in the presence of free-radical polymerization initiator at from 100°C to 350°C and pressures in the range of from 160 MPa to 350 MPa in a high-pressure polymerization ...
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WO/2011/078054A1 |
Provided is a process by which a syndiotactic α-olefin polymer having a high racemic dyad fraction and a high molecular weight can be produced with excellent polymerization activity by means of a method that permits high-temperature pol...
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WO/2011/076443A1 |
Process for the preparation of a polypropylene, wherein propylene is polymerised optionally with a comonomer selected from the group consisting of ethylene, a C4-C20 α-olefin and mixtures thereof, in the presence of a catalyst system co...
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