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Matches 1,201 - 1,250 out of 20,156

Document Document Title
WO/2013/095877A1
A polyethylene composition comprising a granular polyethylene resin characterized by a resin solid density of from 0.91 to 0.97 g/cm3, a ratio of intraparticle void volume to interparticle void volume of from 0.33 to 0.67, and a total re...  
WO/2013/092281A1
A pre-polymerized catalyst component for the polymerization of olefins endowed with high activity and morphological stability comprises a non-stereospecific solid catalyst component containing Ti, Mg and a halogen, and an amount of an et...  
WO/2013/092342A1
Method for preparing olefin polymer in a loop reactor, said loop reactor comprises a first outlet for withdrawing polymer slurry from the loop reactor, and a second outlet for withdrawing a polymer slurry from the loop reactor, wherein t...  
WO/2013/092282A1
A pre-polymerized catalyst component for the polymerization of olefins endowed with high activity and morphological stability comprises (i) a non-stereospecific solid catalyst component comprising Ti, Mg and a halogen and having a porosi...  
WO/2013/091836A1
The invention relates to a process comprising the step of (a) reacting a 2- indenylboranic acid (ester) with a bromosubstituted compound in the presence of the Pd catalyst bis(triphenylphosphin)palladium dichloride (PPh3)2PdCI2) and a ba...  
WO/2013/096106A1
Methods of controlling polymerization reactions using a synergistic amount of hydrogen and an organozinc compound are disclosed. The resulting polymers have lower molecular weights and higher melt flow indices.  
WO/2013/085074A1
An object of the present invention is to provide a method which can simply suppress fouling in a reactor and, according to the present invention, there is provided a method of polymerizing addition polymerizable monomers using a catalyst...  
WO/2013/085846A1
This invention relates to a prepolymer formulation comprising dicyclopentadiene that is at least 92% pure wherein the prepolymer formulation is flowable at ambient temperatures by virtue of the addition of a reactive ethylene monomer to ...  
WO/2013/083548A2
Process for transferring polyolefin particles from a first gas-phase polymerization reactor to a second gas-phase polymerization reactor in a multistage polymerization of olefins carried out in at least two serially connected gas-phase p...  
WO/2013/081748A1
A method for the delivery of a catalyst to a polymerization reactor is disclosed, comprising: contacting a catalyst with a carrier fluid comprising an inert hydrocarbon in gaseous form, the inert hydrocarbon having a normal boiling point...  
WO/2013/082631A1
The presently disclosed and claimed inventive concept(s) relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, ...  
WO/2013/077518A1
The present invention relates to a high-purity polypropylene, and a method for preparing same, and more specifically, provides a catalyst for the polymerization and copolymerization of a high-molecular-weight polyolefin having a low melt...  
WO/2013/077943A1
This invention relates to Group 4 catalyst compounds containing anionic bidentate nitrogen/oxygen based ligands catalyst compounds useful for polymerization and or oligomerization of unsaturated monomers. The catalyst compounds are parti...  
WO/2013/075643A1
An Olefin polymerization catalyst, a preparation method therefor, and an application thereof belong to the field of Olefin polymerization catalyst and olefin polymerization. The Olefin polymerization catalyst is formed of a primary catal...  
WO/2013/075808A1
Process and apparatus for recovering polymer from a a gas phase reactor having a distribution plate via an outlet vessel comprising at least one apparatus for the breakup of polymeric agglomerates, the apparatus further comprising a feed...  
WO/2013/076967A1
Provided is a method for producing a hydrocarbon compound polymer by using a mixture that contains a radical scavenger and a hydrocarbon compound monomer having an unsaturated bond.  
WO/2013/077512A1
The present invention relates to a catalyst for olefin polymerization and copolymerization, and an olefin polymerization or copolymerization method using the same, and more specifically, provides a catalyst for high molecular weight poly...  
WO/2013/078224A1
The invention provides an ethylene-based polymer comprising the following properties: A) a "weight fraction (w) of molecular weight greater than 106 g/mole, based on the total weight of polymer, and as determined by GPC(abs)," that meets...  
WO/2013/077837A1
A catalyst system containing (a) a solid catalyst component containing a titanium halide, a magnesium halide, a first internal electron donor compound, and a second internal electron donor compound, (b) an organoaluminum compound, and (c...  
WO/2013/077944A1
This invention relates to a method to polymerize olefins comprising contacting olefins with an amidinate catalyst compound, a chain transfer agent and an activator, where the amidinate catalyst compound is represented by the formula: (am...  
WO/2013/072225A1
A processfor the preparation of propylene polymer compositions comprising from 50 to 90 % by weight of a propylene (co)polymer fraction insoluble in xylene at 25°C, and from 10 to 50% by weight of an ethylene copolymer fraction soluble ...  
WO/2013/074087A1
The present disclosure relates to a method for polymerizing polypropylene, optionally with one or more additional comonomers in a gas phase reactor in the presence of a mixed electron donor system comprising at least one selectivity cont...  
WO/2013/070602A1
Described herein are methods comprising contacting one or more olefins with a catalyst system in a polymerization reactor at conditions sufficient to produce a polyolefin, wherein the catalyst system comprises a first metallocene catalys...  
WO/2013/064235A1
The invention relates to a multinuclear metallocene catalyst compound according to Formula (1), wherein Y and Y' are the same or different and independently selected from the group consisting of C1-20 linear, branched or cyclic hydrocarb...  
WO/2013/064586A1
Process for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of free-radical polymerization initiators at pressures in the range of from 110 MPa to 500MPa and temperatures in the range of from 100°C to 3...  
WO/2013/066109A1
The present invention relates to a polyolefin polymerization metallocene catalyst composition, and more particularly, to a non-supported heterogeneous polyolefin polymerization catalyst composition in which a specific ansa-metallocene co...  
WO/2013/060810A1
The present application discloses a process for polymerizing propylene or copolymerizing propylene and one or more comonomers in presence of a metallocene-based polymerization catalyst comprising a specifically selected metallocene to pr...  
WO/2013/060444A1
The invention is directed to a catalyst precursor for an ethylene polymerization catalyst comprising a porous inorganic support material carrying a chromium salt and an aluminium chelate. The aluminium chelate is aluminium di( C1-C10 alk...  
WO/2013/062759A1
A mid-range vinylidene content, high viscosity PIB polymer composition including PIB molecules, wherein a first portion of the PIB molecules have alpha position double bonds and a second portion of the PIB molecules have beta position do...  
WO/2013/062763A1
A method of making a polyisobutylene polymer in a recirculating loop reactor with one or more reaction tubes in contact with a heat transfer medium includes: (a) providing a feed mixture consisting essentially of polymerizable monomer an...  
WO/2013/062758A1
A method of making a polyisobutylene polymer in a recirculating loop reactor with one or more reaction tubes in contact with a heat transfer medium includes controlling the delta P and polymerization reaction to provide a linear velocity...  
WO/2013/063464A2
Cyclic organosilicon compounds having a structure represented by the general formula and a method for using thereof as a component of catalysts for producing propylene polymer having a very high melt-fiowability are disclosed. The cyclic...  
WO/2013/057036A1
Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I) In which R to R12 groups, equal to or different from each other, are hydrogen, halogen or C1-C15 hydrocarb...  
WO/2013/057011A1
Production of isobutene homo- or copolymers having a number average molecular weight of 500 to 5,000,000 by polymerisation of isobutene or an isobutene-containing monomer mixture in the presence of a Lewis acid or a complex containing a ...  
WO/2013/059042A1
The invention provides a high pressure polymerization process to form an ethylene-based polymer, the process comprising at least the following steps: feeding ethylene to a first reaction zone and to one or more subsequent reaction zones,...  
WO/2013/052308A1
The present invention provides a system and process for olefin polymerization. The inventive system and process for olefin polymerization facilitate lower operating vacuum pressures in the polymer recovery system by requiring at least tw...  
WO/2013/051006A1
The present invention provides titanium based precursor for polyolefin catalyst with desired morphology and high particle strength. The of preparation of the precursor in accordance with the present invention obviates the use of iodine.  
WO/2013/050087A1
The present invention relates to a process for the production of a stabilized polyolefin comprising - an olefin homo- or copolymer (A); and - an antioxidant (B) wherein olefin homo- or copolymer (A) is produced in a process carried out i...  
WO/2013/052273A2
The invention describes the preparation of long chain branching in high density polyethylene by using metallocene catalysts in the presence of ethylene.  
WO/2013/047891A2
The object of the invention is to provide a method of controlling fouling in a reactor, and a method of carrying out addition polymerization while controlling fouling of a reactor. The invention provides a method for washing an inner wal...  
WO/2013/047314A1
The purpose of the present invention is to provide: a polymer which has a smaller halogen atom content remaining in the polymer; a simple method for producing the polymer; an active energy ray-curable composition which can be quickly cur...  
WO/2013/046846A1
The present invention provides a method for producing a chlorinated propylene-containing polymer, said method comprising a step wherein a propylene-containing polymer is chlorinated in a mixed liquid of a chlorine-based solvent and water...  
WO/2013/043796A2
The present invention relates to a branched modifier and a composition comprising more than 25 wt% (based on the weight of the composition) of one or more linear ethylene polymers having a g'vis of 0.97 or more and an Mw of 20,000 g/mol ...  
WO/2013/042400A1
A solid catalyst component for the polymerization of an olefin, which comprises titanium, magnesium, a halogen and a compound represented by formula (1): R1O-C(=O)-O-Z-OR2. A catalyst for the polymerization of an olefin, which comprises ...  
WO/2013/041470A1
A process for the preparation of high purity propylene polymers carried out in the presence of a catalyst comprising the product obtained by contacting: (a) a solid catalyst component comprising Mg, Ti and at least a first internal elect...  
WO/2013/042797A1
An object of the present invention is to provide a process for producing a solid catalyst component for olefin polymerization, a process for producing a solid catalyst for olefin polymerization, and a process for producing an olefin poly...  
WO/2013/039619A1
Aspects of the invention are directed to a loop polymerization reactor comprising upflow and downflow legs fluidly connected at the top and bottom thereof to form a continuous loop, in which the number of downflow legs exceeds the number...  
WO/2012/007443A9
The present invention relates to a modified polymer obtained by grafting a compound thereto, said compound including at least one group Q and at least one group A bonded together by at least one, and preferably only one, spacer group Sp,...  
WO/2013/036211A1
The present invention relates to a high activity olefin polymerization catalyst comprising a boron-containing silica support and the preparation thereof. This invention is characterized in that the support is heat treated in combination ...  
WO/2013/032651A1
The present disclosure is directed to the production of substituted phenylene aromatic diesters and 5-tert-butyl-3-methyl-l,2-phenylene dibenzoate (or "BMPD") in particular. The processes disclosed herein produce a liquid BMPD product. T...  

Matches 1,201 - 1,250 out of 20,156