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Matches 401 - 450 out of 28,765

Document Document Title
WO/2018/067367A1
A phthalate-free procatalyst composition is disclosed for olefin polymerization that exhibits excellent polymerization activity and response to hydrogen, and can produce a polyolefin exhibiting high stereoregularity, high melt flow rate,...  
WO/2018/066535A1
Provided is a solid catalyst component for olefin polymerization, which has extremely low adhesion caused by stickiness (tackiness) of polymer particles during polymerization of olefins, especially during a copolymerization reaction such...  
WO/2018/063899A1
A magnesium halide-supported titanium procatalyst, a catalyst prepared therefrom, an enhanced catalyst consists essentially of a product of a reaction of the magnesium halide-supported titanium procatalyst and a hydrocarbylaluminoxane. A...  
WO/2018/063853A1
A process to prepare an ethylene-based polymer, said process comprising polymerizing a mixture comprising ethylene, at a pressure greater than, or equal to, 100 MPa, in the presence of at least one free-radical initiator; and in a reacto...  
WO/2018/060029A1
The present invention deals with a process for producing a coated pipe. The process comprises (i) homopolymerising ethylene or copolymerising ethylene and an α-olefin comonomer in a first polymerisation step in the presence of a polymer...  
WO/2018/060224A1
The invention relates to a process for the production of a high strength transparent high density polyethylene article comprising the steps of (i) heating a high density polyethylene (HDPE) to a temperature above the melting temperature ...  
WO/2018/063765A1
A process including contacting one or more monomers, at least one catalyst system, and a condensing agent including propane and isobutane under polymerizable conditions to produce a polyolefin polymer is provided.  
WO/2018/064050A2
A method of preparing a catalyst comprising a) contacting (i) a silica-support, (ii) an oxotitanium compound, (iii) a chromium-containing compound, and (iv) an optional solvent to form a first aqueous mixture comprising a pre-catalyst an...  
WO/2018/063898A1
A modified Ziegler-Natta procatalyst that is a product mixture of modifying an initial Ziegler-Natta procatalyst with a molecular (pro)catalyst, and optionally an activator, the modifying occurring before activating the modified Ziegler-...  
WO/2018/063900A1
A method of polymerizing an olefin using a combination of a Ziegler-Natta catalyst and an unsupported molecular catalyst in a same reactor at the same time to give a polyolefin product, and the polyolefin product made by the method. Also...  
WO/2018/063767A1
A process including contacting one or more monomers, at least one catalyst system, and a condensing agent including a majority of propane under polymerizable conditions to produce a poly olefin polymer is provided.  
WO/2018/054363A1
Provided is a catalyst component for use in olefin polymerization, comprising magnesium, titanium, a halogen, and an internal electron donor, the internal electron donor comprising a ketamine compound as represented by formula I. Also pr...  
WO/2018/022238A8
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 bond to the metal by dative bonds, catalyst systems comprising such and poly...  
WO/2018/056654A1
The present invention relates to a polypropylene-based resin composition which exhibits mechanical properties such as excellent strength and an improved impact strength, and a molded article comprising the same. The polypropylene-based r...  
WO/2018/056656A1
The present invention relates to a polypropylene-based resin composition which exhibits mechanical properties such as excellent strength, etc. and has an improved impact strength, and to a molded article including the same. The polypropy...  
WO/2018/052437A1
Embodiments disclosed herein relate to the production of polypropylene. A hydrocarbon feedstock, containing propane, is fed to a propane dehydrogenation reaction zone to convert a portion of the propane to propylene. The propane and prop...  
WO/2018/046853A1
The invention relates to a pre-catalyst for olefin polymerisation, of formula MuMalc vXw(LA)y(LB)z, wherein M is the cobalt or the nickel; Malc is an alkali metal and/or an alkaline-earth metal; X is an anion; LA is a Lewis acid; LB is a...  
WO/2018/046567A1
The present invention relates to a new process for preparing a polyethylene using new bis(metallocene) compounds in catalyst compositions. The bis(metallocene) compounds of the invention are homo- or hetero bis(metallocene) molecules in ...  
WO/2018/048122A1
The present invention relates to a latex composition for dip molding, and a molded product manufactured therefrom and, more specifically, the composition uses sodium polysulfide having hydrophilicity, thereby enabling the manufacture of ...  
WO/2018/046169A1
Process of manufacturing multimodal high density polyethylene, comprising performing first polymerization to form a first slurry in a first reactor, transferring at least part of the first slurry from the first reactor into a second reac...  
WO/2018/046568A1
The present invention relates to a new process for preparing a polypropylene using new bis(metallocene) compounds in catalyst compositions. The bis(metallocene) compounds of the invention are homo- or hetero bis(metallocene) molecules in...  
WO/2018/046395A1
The present invention relates to a process for the continuous preparation of a polyolefin from one or more a-olefin monomers in a reactor system, the process for the continuous preparation of polyolefin comprising the steps of: + feeding...  
WO/2017/058570A9
Ethylene-based polymer is made by a process comprising polymerizing a reaction mixture comprising ethylene and at least one chain transfer agent system; wherein the polymerization takes place in the presence of at least one free-radical ...  
WO/2018/043418A1
Provided is a method for producing an oligomer, the method comprising a step for oligomerizing a polymerizable monomer containing an olefin in the presence of a catalyst, wherein the catalyst contains trialkylaluminum and an iron complex...  
WO/2018/045030A1
A polymerization process includes contacting an olefin or a mixture of the olefin and one or more copolymerizable comonomers under polymerization conditions with a catalyst composition and forming a polymer with a total ash content of le...  
WO/2018/044395A1
This invention relates to a process for forming polymer including: polymerizing a monomer dissolved in a solvent in the presence of a catalyst system under conditions to obtain a first effluent stream including a solution of the polymer ...  
WO/2018/038796A1
A process for reducing the level of hydrogen in certain polymerization effluent and recycle streams containing unreacted propylene monomers and hydrogen by contacting the streams with a hydrogenation catalyst so as to convert at least pa...  
WO/2018/038880A1
Phosphasalen transition metal complexes are disclosed for use in alkene polymerization to produce polyolefins. The transition metal complexes are represented by the formula: (Formula (I)) wherein M is a Group 4 metal; each of X1 and X2 i...  
WO/2018/009034A3
The present invention relates to a reactor for a solution process using a metallocene catalyst to prepare polyolefin polymers, and to a reactor for solution polymerization process of polymers, comprising: a reaction tank for preparing po...  
WO/2018/037849A1
Provided is a modified polyolefin-based resin which has excellent adhesiveness to polyolefin-based substrates and has excellent adhesiveness to polycarbonate-based substrates and to polystyrene-based substrates. The modified polyolefin-b...  
WO/2018/031043A1
Surface-modified polymer compositions are provided. The surface-modified polymer compositions can include a polymer and a multifunctional linker. The surface-modified polymer compositions can include a polymer, a multifunctional linker, ...  
WO/2018/031157A1
Disclosed is a solution polymerization process, or, alternatively, a method of delivering powder catalysts to a solution polymerization reactor, comprising combining a homogeneous single-site catalyst precursor with a-olefin monomers to ...  
WO/2018/031046A1
Surface-modified polymer compositions are provided. The surface-modified polymer compositions can include a polymer and a multifunctional linker. The surface-modified polymer compositions can include a polymer, a multifunctional linker, ...  
WO/2018/026330A1
The present invention relates to a porous catalyst support comprising magnesium (Mg) and a modifier and preparation process thereof. Also, the present invention relates to an olefin polymerization catalyst comprising a transition metal c...  
WO/2018/025862A1
A method for producing a solid catalyst component for olefin polymerization, said solid catalyst component containing a titanium atom, a magnesium atom, a halogen atom and an internal electron donor. This method for producing a solid cat...  
WO/2018/022199A1
Described herein are processes and systems for purifying an olefin stream which has at least 99 mol% ethylene, involving use of a sulfur guard bed to yield an effluent from the olefin stream which is substantially free of sulfur; a hydro...  
WO/2018/022238A1
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 bond to the metal by dative bonds, catalyst systems comprising such and poly...  
WO/2018/022249A1
Heterocyclic amido transition metal complexes are disclosed for use in alkene polymerization to produce polyolefins, preferably multimodal polyolefins. The heterocyclic amido transition metal complexes are formed by the chelation of a tr...  
WO/2018/021446A1
Provided are a novel catalyst component having superior polymerization activity for production of a polymer and a copolymer of an α-olefin, particularly a polymer having a high molecular weight, and a method for producing a polymer and ...  
WO/2018/022279A1
Phenolate ligands and transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins.  
WO/2018/020122A1
The present invention relates to a catalytic system made of at least one preforming monomer which is ethylene or a mixture of ethylene and a conjugated diene, a metallocene of formula{P(Cp1)(Cp2)Y} or Cp3Cp4Y, an organometallic compound ...  
WO/2018/020123A1
The present invention relates to a catalytic system made of at least isoprene as a preforming monomer, a metallocene of formula {P(Cp1)(Cp2)Y}, an organometallic compound as a co-catalyst, Y designating a group comprising a rare-earth me...  
WO/2018/020124A1
The present invention relates to a one-pot method for preparing a preformed catalytic system from a rare-earth metallocene in a hydrocarbon solvent in three managed steps.  
WO/2018/022219A1
The present invention relates to a bimodal polypropylene composition comprising a blend of a HMW polypropylene component and a LMW polypropylene component, where the high molecular weight (HMW) component of the bimodal composition has a ...  
WO/2018/022263A1
This disclosure describes polymerization processes and processes for quenching polymerization reactions using high molecular weight polyhydric quenching agents.  
WO/2018/021656A1
The present invention relates to a high-density ethylene-based polymer comprising an ethylene homopolymer or a copolymer of ethylene, and at least one type of comonomer selected from the group consisting of an α-olefin, a cyclic olefin,...  
WO/2018/016712A1
The present invention provides a method for oligomerizing an olefin, comprising the steps of putting, into a reactor: an oligomerization catalyst comprising a transition metal source, a hetero atom ligand and an organic ligand, or a tran...  
WO/2018/015306A1
The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 70 mol%. The present invention furthe...  
WO/2018/012792A1
Provided is a method for oligomerization of ethylene, and more particularly, a method for producing 1-hexene and 1-octene at a high selectivity under an ethylene atmosphere by inducing a remarkably improved catalytic activity while effec...  
WO/2018/012793A1
Provided is a method for oligomerization of ethylene, and more particularly, a method for producing 1-hexene and 1-octene at a high selectivity under an ethylene atmosphere by inducing a remarkably improved catalytic activity while effec...  

Matches 401 - 450 out of 28,765