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WO/2014/023637A1 |
The present invention relates to a process for the polymerisation of olefins in a gas phase fluidised bed reactor, and in particular provides a polymerisation process comprising: i) passing a fluidising gas to the reactor to fluidise a b...
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WO/2014/023604A1 |
The present invention relates to a process for the preparation of a polypropylene in a sequential polymerization process comprising a pre-polymerization reactor and at least two polymerization reactors connected in series, wherein the po...
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WO/2014/023603A1 |
The present invention relates to a process for the preparation of a polypropylene in a sequential polymerization process comprising least two polymerization reactors connected in series, wherein the polymerization in the at least two pol...
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WO/2014/021494A1 |
The present invention relates to a transition metal catalyst composition and to a method for preparing polyolefins using the catalyst composition, in which the transition metal catalyst composition is capable of not only exhibiting high ...
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WO/2014/022461A1 |
A method for preparing ammonium tetrakis(pentafluorophenyl)borate salt comprising reacting a secondary amine with an aldehyde to form an iminium ion; hydrogenating the iminium ion by reaction with a reducing agent to form a tertiary amin...
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WO/2014/020093A2 |
Solid adducts comprising MgCl2, ethanol and water characterized in that the amount of ethanol ranges from 50% to less than 57% by weight, the amount of water is ranges from 0.5 to 5% by weight, the ethanol/water weight ratio is lower tha...
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WO/2014/022482A1 |
The disclosure describes methods of metathesizing unsaturated organic compounds, each method comprising contacting at least one feedstock comprising at least one olefinic or acetylenic precursor with a solid transition metal-based metath...
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WO/2014/016318A1 |
The present invention relates to a process for preparing a polyethylene resin having a multimodal molecular weight distribution in at least two loop slurry reactors connected in series, comprising the step of: polymerizing ethylene in th...
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WO/2014/016418A1 |
The present invention relates to uncompounded particulate metallocene-produced polyethylene having a multimodal molecular weight distribution, said particulate polyethylene having a particle size distribution, the particle size distribut...
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WO/2014/016336A1 |
Stabilized composition comprising: -at least one homopolymer or copolymer of ethylene; -at least one tocotrienol or at least a mixture of tocotrienol isomers.
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WO/2014/016206A1 |
Process for providing a polypropylene composition comprising a branched polypropylene in which a polypropylene with a melt flow rate MFR2 (230°C) of more than 1.0g/10min is reacted with a thermally decomposing free radical-forming agent...
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WO/2014/013916A1 |
Provided is a method for producing a novel solid catalyst component for use in the polymerization of an olefin, wherein the solid catalyst component has an excellent olefin polymerization activity, can have an excellent activity on hydro...
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WO/2014/013401A1 |
A catalyst composition for use as precursor for Ziegler-Natta catalyst system, said catalyst composition comprising a combination of magnesium moiety, titanium moiety and an internal donor containing at least one 1,2-phenylenedioate comp...
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WO/2014/008964A1 |
The present invention relates to a method for oligomerization of ethylene, comprising the steps: a) feeding ethylene, solvent and a catalyst composition comprising catalyst and cocatalyst into a reactor, b) oligomerizing ethylene in the ...
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WO/2014/007154A1 |
The present invention provides polymer particles which contain the components (a) and (b) described below and have a volume average particle diameter (D50) of from 1 nm to 1,000 nm (inclusive). (a) an amphiphilic polymer (b) a compound, ...
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WO/2014/005816A1 |
Fibers comprising a polypropylene obtainable by a process comprising the steps of: (i) polymerizing propylene in the presence of a catalyst system comprising the product obtained by contacting the following components: (a) a solid cataly...
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WO/2014/007765A1 |
In accordance with the present disclosure, a method of preparing a solid support for a transition metal catalyst is disclosed. The solid support may have a unique morphology that may be derived from contacting the magnesium compound and ...
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WO/2014/005871A1 |
The present invention concerns a method for modifying resin which comprises the reaction of an unsaturated resin consisting of more than 95% by mass of carbon and hydrogen atoms with a hypohalogenous compound in at least one solvent in t...
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WO/2014/006069A1 |
The present invention relates to processes for the polymerization of olefins that reduces the concentration of impurities present in olefin-containing hydrocarbon feedstock and/or diluent, by passing said feedstock and/or said diluent,ov...
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WO/2014/001288A1 |
A film formed from a polyethylene composition is disclosed, the polyethylene having a having a density of 948-956 kg/m3, a high load melt index HLMI of 7-15, a melt storage modulus G' at a dynamic frequency where the loss modulus G" = 30...
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WO/2014/001257A1 |
The present invention relates to a catalyst composition comprising the compound represented by the Fischer projection of formula (I) as an internal electron donor, (I) wherein: R1, R2, R3, R4, R5 and R6 are the same or different and are ...
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WO/2014/001426A1 |
The present invention relates to propylene polymers having a melt flow index in the range from 3.0dg/min to 8.0dg/min that are particularly suited for high- tenacity fibers and yarns and nonwovens. Further the present invention relates t...
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WO/2014/001394A1 |
Use of an additive mixture containing a linear polypropylene and at least one additive in a polypropylene composition comprising said additive mixture and a branched polypropylene to reduce the gel index of said polypropylene composition.
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WO/2014/001108A1 |
A process for the polymerization of propylene is disclosed. The process may include contacting, in a gas phase polymerization reactor, propylene and optionally one or more comonomers with a catalyst system comprising a Ziegler-Natta cata...
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WO/2014/003837A1 |
The invention provides an ethylene-based polymer formed from reacting at least the following: ethylene and at least one asymmetrical polyene, comprising an "alpha, beta unsaturated end" and a "C-C double bond end," and wherein the reacti...
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WO/2013/192186A1 |
A polyisobutylene composition has polyisobutylene molecules with a first portion having a alpha vinylidene molecules, a second portion having beta vinylidene molecules, and a third portion having internal vinylidene molecules. The first ...
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WO/2013/186025A1 |
The present invention is directed to a process for the gas phase polymerisation of ethylene in the presence of a catalyst composition comprising a support material carrying a chromium compound and a magnesium containing compound represen...
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WO/2013/185340A1 |
The invention provides a composition comprising the following: A) an anhydride and/or carboxylic acid functionalized ethylene/alpha-olefin interpolymer having the following properties: i) a melt viscosity (177°C) less than, or equal to,...
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WO/2013/186214A1 |
The invention relates to a process for the production of polyethylene by gas phase polymerisation of ethylene in the presence of a supported chromium oxide based catalyst which is modified with an amino alcohol wherein the molar ratio of...
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WO/2013/186299A1 |
A method for controlling the temperature in a polymerization reactor equipped with a cycle gas line for withdrawing reactor gas from the reactor, leading the reactor gas through a heat- exchanger, which is cooled by a cooling medium, whi...
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WO/2013/183611A1 |
[Problem] To provide a highly reactive alpha-olefin polymer. [Solution] An alpha-olefin polymer that satisfies the following conditions: (1) the 2,1-bonding fraction of said alpha-olefin polymer is less than 0.5 mol%; (2) the sum of the ...
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WO/2013/183600A1 |
A pressure-sensitive adhesive composition containing a butene-based polymer, said butene-based polymer consisting of a 1-butene homopolymer that satisfies conditions (1) and (2) given below and/or a 1-butene-propylene copolymer that sati...
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WO/2013/180784A1 |
The invention provides a process to form an ethylene-based polymer, said process comprising polymerizing ethylene in presence of at least the following: A) a free-radical agent; B) an alkylated phenol selected from Formula (I), wherein R...
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WO/2013/174759A1 |
Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I), in which R2-R8 groups, equal or different to each other, are selected from hydrogen, halogen and C1 -C15 ...
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WO/2013/172204A1 |
An olefin polymerizer equipped with: a cylinder part extending in the vertical direction; a taper part which is disposed in the cylinder part and has an inner diameter that becomes smaller downward and which has a vertically open hole at...
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WO/2013/172950A1 |
A process for preparing a catalyst comprising (A) selecting a catalyst support selected from the group consisting of gels of silica, silica alumina, alumina, aluminum phosphate, aluminaphospate, and combinations of two or more thereof; (...
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WO/2013/168928A1 |
The present invention relates to an ansa-metallocene compound, to a method for preparing same, and to a method for preparing polyolefins using the ansa-metallocene compound, wherein the ansa-metallocene compound has a novel structure whi...
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WO/2013/168626A1 |
This invention relates to: an organic metal compound that includes a bisphosphine monoxide (BPMO) expressed by formula (I), and a central metal (M) comprising an element from group 10 of the periodic table and forming a complex with the ...
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WO/2013/166369A1 |
Processes for forming propylene from methanol are disclosed. The processes involve converting methanol to a product mixture comprising ethylene and propylene, separating the ethylene from the propylene, dimerizing a first portion of the ...
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WO/2013/164437A1 |
The present invention relates to a process for preparing polyolefin in a polymerization loop reactor, said loop reactor comprising: a plurality of interconnected pipes defining a flow path for a polyolefin slurry, and - one or more settl...
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WO/2013/161833A1 |
[Problem] To provide a method for producing an olefin polymer enabling use of an aliphatic hydrocarbon solvent as a solvent used in catalyst preparation and the like, instead of an aromatic hydrocarbon solvent, which has a greater enviro...
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WO/2013/159571A1 |
The present invention relates to a lubricating oil composition and a preparation method therefor. The lubricating oil composition comprises a Mannich base as represented by structural formula (III) and a lubricating oil base oil, where A...
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WO/2013/155982A1 |
The present invention relates to a supported metal-oxide double-active-center catalyst for ethylene polymerization, preparation method therefor and application thereof. The catalyst composition comprises inorganic carrier and two support...
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WO/2013/155946A1 |
The present invention relates to a novel supported double-center composite polyethylene catalyst and preparation method and use thereof, characterized in that a vanadium supported active component is added on a common supported organic c...
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WO/2013/156491A1 |
The present invention provides a new process for preparing a catalyst for the gas phase polymerization of olefins wherein the sequence of addition of the catalyst components and the selection of the said components provides a catalyst co...
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WO/2013/154690A1 |
A continuous process for producing high pressure polyethylene is described. The process includes contacting first amounts of ethylene, an optional polar comonomer, and a first C2 to C12 modifier in the presence of a first amount of initi...
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WO/2013/154882A1 |
A process for recovery of ethylene from a polymerization product stream of a polyethylene production system, comprising separating a light gas stream from the polymerization product stream, wherein the light gas stream comprises ethane a...
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WO/2013/154703A1 |
This invention relates to processes for increasing the viscosity of an oligomer composition including contacting the oligomer composition comprising one or more vinyl terminated oligomer with a supported mixed metal oxide catalyst; where...
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WO/2013/154907A2 |
A process for component separation in a polymer production system, comprising separating a polymerization product stream into a gas stream and a polymer stream, wherein the gas stream comprises ethane and unreacted ethylene, distilling t...
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WO/2013/151863A1 |
The present invention provides polymerization processes utilizing a catalyst system containing an ansa-metallocene and a second metallocene compound for the production of olefin polymers.
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