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Matches 1 - 50 out of 27,488

Document Document Title
WO/2018/161854A1
Provided in the present invention is a solid catalyst component for use in olefin polymerisation, comprising Mg, Ti, a halogen, and at least one electron donor, the electron donor being a 2-substituted amino-phenyl ester compound selecte...  
WO/2018/164161A1
Provided is a propylene-based polymer which satisfies (1)-(4) below: (1) the intrinsic viscosity [η] measured at 135˚C in a tetralin solvent is 0.3-5.0 dL/g; (2) the melting endotherm (ΔH-D), which is obtained from a melting endotherm...  
WO/2018/160276A1
Catalyst systems with single site transition metal complexes (such as quinolinyldiamide transition metal complexes), an activator, and a metal hydrocarbenyl transfer agent (preferably an aluminum vinyl-transfer agent) are disclosed for u...  
WO/2018/160277A1
This invention relates to the use of pyridyldiamido and/or quinolinyldiamido transition metal complexes and catalyst systems with an activator and a metal hydrocarbenyl chain transfer agent, such as an aluminum vinyl-transfer agent (A VT...  
WO/2018/158966A1
Provided is a metallocene compound represented by general formula (1). (1) (The reference signs in general formula (1) are as stipulated in the description.)  
WO/2018/160278A1
This invention relates to the use of pyridyldiamido and/or quinolinyldiamido transition metal complexes and catalyst systems with an activator and a metal hydrocarbenyl chain transfer agent, such as an aluminum vinyl-transfer agent (A VT...  
WO/2018/155179A1
The present invention addresses the problem of providing a molded article which is formed by disposing a plurality of parts in contact with each other, said parts containing 4-methyl-1-pentene-based polymers, and has high part-to-part ad...  
WO/2018/151790A1
This invention relates to hafnium metallocene compounds having a group substituted at the 3 position of at least one cyclopentadienyl ring represented by the formula -R20-SiR'3 or -R20-CR'3 where R20 is a C1 to C4 hydrocarbyl and R' is a...  
WO/2018/147931A1
A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst is provided. The process includes preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce...  
WO/2018/143191A1
The present invention provides an ethylene polymer, wherein the viscosity-average molecular weight as determined according to specific conditions for measuring the isothermal crystallization time is 100 × 104 to 1,000 × 104 (inclusive)...  
WO/2018/144139A1
Methods for reducing gels and/or dome sheeting in gas phase polymerization processes and their resulting products are provided. The polymerization processes include polymerizing ethylene and one or more optional comonomers in a fluidized...  
WO/2018/134007A1
A fluid is fed into a polymer bed of a fluidized bed gas phase polymerization reactor by introducing it into the polymer bed through a distributor protruding into the fluidized bed zone of the reactor and terminating with a discharge end...  
WO/2018/132247A3
The present disclosure relates to bridged metallocene catalysts that include at least one indenyl ligand substituted at the 2-position with a C3-C10 branched alkyl, such as isopropyl. Catalyst systems including the catalysts, polymerizat...  
WO/2018/132247A2
The present disclosure relates to bridged metallocene catalysts that include at least one indenyl ligand substituted at the 2-position with a C3-C10 branched alkyl, such as isopropyl. Catalyst systems including the catalysts, polymerizat...  
WO/2018/127772A1
The present invention relates to a novel transition metal compound based on a cyclopenta[a]naphthalene group, a transition metal catalyst composition comprising the same which has high catalytic activity for producing an ethylene homopol...  
WO/2018/127795A1
The present invention relates to: a novel indene-based transition metal compound; a transition metal catalyst composition for preparing an ethylene homopolymer or a copolymer of ethylene and one or more α-olefins, containing the same an...  
WO/2018/127472A1
A slurry polymerization process for the preparation of polyethylene in a reactor cascade of two or more polymerization reactors comprising polymerizing monomers in a polymerization reactor wherein the polymerization reactors comprise a r...  
WO/2018/123592A1
The present invention provides a polyester sheet which maintains superior mechanical strength, dimensional stability, and durability which are originally possessed by polyester, and has light reflection performance better than that of co...  
WO/2018/119538A1
The present invention relates to a method that allows the synthesis of oxidised and reduced polymer/carbon nanocomposites, the polymer being an olefin, more particularly polyethylene, the nanocomposites being obtained via in-situ polymer...  
WO/2018/122693A1
The present invention relates to a novel transition metal compound based on a cyclopenta[b]thiophenyl group, a transition metal catalyst composition, comprising same and having a high catalytic activity, for preparing ethylene homopolyme...  
WO/2018/123070A1
Provided are a novel Ziegler-Natta catalyst and a novel UHMWPE produced using the one thereof. Mixing MgO nanoparticles, a hydrocarbon solvent, and a surfactant produces the well-dispersed MgO nanoparticle-based Ziegler-Natta catalyst. C...  
WO/2018/113554A1
Provided is an alkoxy magnesium supported olefin polymerization catalyst component, comprising the reaction products of the following components: at least one alkoxy magnesium compound of Mg(OR1')N(OR2')2-N, at least one titanium compoun...  
WO/2018/118258A1
A method for controlling the start up conditions in a gas phase polymerization process is provided. An inventory can be calculated for each monomer, comonomer, and hydrogen sufficient to produce a polyethylene polymer having desired prop...  
WO/2018/118155A1
A process including contacting one or more monomers, at least one catalyst system, and a condensing agent including ≥ 10 mol% tetramethylsilane under polymerizable conditions to produce a polyolefin polymer is provided.  
WO/2018/111631A1
Embodiments of the present disclosure are directed towards methods for rating polymerization processes based upon a first cracking index value and a second cracking index value.  
WO/2018/109415A1
The present invention relates to a composition comprising at least one dialkyl peroxide, in liquid form at ambient temperature, with a content of 75 wt% to 77 wt% relative to the total weight of the composition, and at least one mineral ...  
WO/2018/108936A1
The invention relates to a process for the preparation of a propylene homopolymer or a propylene α-olefin random copolymer comprising the step of a) preparing a propylene homopolymer or a propylene α-olefin random copolymer, wherein th...  
WO/2018/105865A1
The present invention relates to a catalyst composition for synthesizing an olefin copolymer comprising a first metallocene catalyst, a second metallocene catalyst, and a third metallocene catalyst, each having a specific chemical struct...  
WO/2018/105829A1
The present invention relates to a polyethylene resin composition for a bottle cap, comprising 0.01 to 0.4 parts by weight of a slip agent relative to 100 parts by weight of a polyethylene resin, wherein the slip agent is an unsaturated ...  
WO/2018/104080A1
The invention relates to a process of manufacturing high density polyethylene, comprising • performing first polymerization to form a first slurry in a first reactor (R1); transferring (104) at least part of the first slurry from the f...  
WO/2018/105865A8
The present invention relates to a catalyst composition for synthesizing an olefin copolymer comprising a first metallocene catalyst, a second metallocene catalyst, and a third metallocene catalyst, each having a specific chemical struct...  
WO/2018/104424A1
The present invention relates to an organometallic compound of formula (I) or (II) in which M denotes an atom of a metal belonging to the 2nd column of the periodic table; R1, R2, R3 and R4 are hydrogen atoms or alkyl or aryl substituent...  
WO/2018/100076A1
The present invention relates to a process for operating a polymer powder degasser vessel, and in particular provides a process for operating a polymer powder degasser vessel which vessel comprises a silo comprising a main vertical cylin...  
WO/2018/098425A1
The present disclosure provides for a system and method for producing a polyethylene polymer (PE) that includes measuring a melt flow index (MFI) of the PE, comparing the measured value of the MFI to a predetermined desired range for the...  
WO/2018/097472A1
The present invention relates to a supported catalyst comprising a novel metallocene compound having excellent polymerization activity, and to a method for producing polypropylene having excellent processability and a broad molecular wei...  
WO/2018/092805A1
A master batch composition which is obtained by polymerizing propylene and ethylene with use of (A) a solid catalyst that contains, as essential components, magnesium, titanium, a halogen and an electron donor compound selected from amon...  
WO/2018/091684A1
A complex of formula (I) wherein M is zirconium or hafnium; each X independently is a sigma ligand; L is a divalent bridge selected from -R'2C-, -R'2C-CR'2-, -R'2Si-, -R'2Si-SiR'2-, -R'2Ge-, wherein each R' is independently a hydrogen at...  
WO/2018/092803A1
A method for producing an α-olefin oligomer, which comprises a process wherein: an α-olefin oligomer mixture is produced by performing an oligomerization reaction of an α-olefin; subsequently, a distillation residue containing α-olef...  
WO/2018/093085A1
The present invention relates to a polyethylene resin exhibiting excellent impact strength, and more specifically, to a polyethylene resin exhibiting excellent impact strength and flexural strength when manufactured into a molded article.  
WO/2018/093052A3
The present invention relates to an olefinic monomer recovery device capable of suppressing fouling and pressure drop in the recovery device in a process of separating and recovering unreacted monomers after production of a polyolefin re...  
WO/2018/093052A2
The present invention relates to an olefinic monomer recovery device capable of suppressing fouling and pressure drop in the recovery device in a process of separating and recovering unreacted monomers after production of a polyolefin re...  
WO/2018/088359A1
[1] A propylene polymer having a melting endotherm (ΔH-D), as measured using differential scanning calorimetry (DSC), of 0 to 80 J/g, and a viscosity, as measured using a B-type viscometer, of 500 to 6000 mPa∙s; [2] a propylene resin ...  
WO/2018/089194A1
A bimodal linear polyethylene composition, products made therefrom, methods of making and using same, and articles containing same.  
WO/2018/089193A1
A bimodal linear polyethylene composition, products made therefrom, methods of making and using same, and articles containing same.  
WO/2018/089165A1
This invention relates to novel transition metal catalyst compounds comprising four oxygen atoms bonded to a transition metal where two of the oxygen groups are bonded to the metal by dative bonds and a silyl or germyl bridge, catalyst s...  
WO/2018/088741A1
A crosslinked polyethylene composition according to the present invention is characterized in that the migration of an additive is suppressed due to a small oil content of low-density polyethylene, so that when crosslinked polyethylene i...  
WO/2018/088209A1
The present invention provides an ethylene polymer which has a weight-average molecular weight (Mw) of 200,000-3,000,000. The ethylene polymer, when examined by a solid echo method with pulsed NMR, gives a free induction decay at 130°C,...  
WO/2018/089195A1
Provided are various bimodal polyethylene, including but not limited to a bimodal polyethylene for a pipe having a density of from 0.9340 to 0.9470 gram/cubic centimeters (g/ccm), a melt index (I2) of from 0.1 to 0.7 gram/10 minute, a me...  
WO/2018/087214A1
A process for preparing an ethylene polymer comprising homopolymerizing ethylene or copolymerizing ethylene with one or more comonomers in a gas-phase polymerization reactor comprising a riser unit, in which growing polymer particles flo...  
WO/2018/084983A1
A polymerization catalyst supply system is provided. The polymerization catalyst supply system can be used to prepare polyolefin polymers with multimodal or broad molecular weight distribution, or to prepare polyolefins having broad comp...  

Matches 1 - 50 out of 27,488