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Matches 351 - 400 out of 28,784

Document Document Title
WO/2018/179619A1
The present invention provides a 4-methyl-1-pentene polymer (X) which comprises 90 to 100 mol% of constitutional units derived from 4-methyl-1-pentene and 0 to 10 mol% of constitutional units derived from at least one olefin selected fro...  
WO/2018/174193A1
Provided is a fluororesin laminated article in which a layer of a fluorine-containing copolymer and a layer of a propylene-based polymer having exceptional heat resistance are solidly bonded. This laminated article comprises: a layer con...  
WO/2018/175073A1
Methods for preparing a catalyst system that includes contacting at least one aromatic hydrocarbon, at least one activator, at least one catalyst having a Group 3 through Group 12 metal atom or lanthanide metal atom, and at least one cat...  
WO/2018/167305A1
The present invention relates to a process for preparing a procatalyst for polymerization of olefins, said process comprising contacting a magnesium-containing support with a halogen-containing titanium compound, an internal electron don...  
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/2018/132247A3
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/2018/155179A1
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/2018/093052A3
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/2017/131490A3
The present invention relates to a hybrid supported catalyst and a method for preparing an olefin polymer by using the same. The olefin polymer, which shows processability more remarkably improved than that of a conventional olefin polym...  
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/2017/165009A8
A process for preparing a polyethylene composition comprising contacting ethylene with a first salan catalyst precursor and an activator to form branched vinyl/vinylidene-terminated high density polyethylene having a number average molec...  
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/2018/132247A2
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/2018/005201A8
Quinolinyldiamido transition metal complexes are disclosed for use in alkene polymerization to produce multimodal polyolefins.  
WO/2017/140580A8
A process for the manufacture of pre-activated or pre-polymerized catalysts for the polymerization of olefins is disclosed. In particular, the present disclosure relates to a process for the preparation of pre-activated or pre-polymerize...  
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/2017/189120A8
This invention relates to organoaluminum activators, organoaluminum activator systems, preferably supported, to polymerization catalyst systems containing these activator systems and to polymerization processes utilizing the same. In par...  
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/2018/104424A1
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/2018/093052A2
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...  

Matches 351 - 400 out of 28,784