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Matches 1 - 50 out of 27,374

Document Document Title
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/2018/104424A1
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...  
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...  
WO/2018/077209A1
Provided are a magnesium alkoxide particle and an application thereof. The magnesium alkoxide particle contains the reaction product of the following components: 1) a magnesium powder, 2) a mixed alcohol, 3) a halogenating agent, and 4) ...  
WO/2018/078571A1
The present disclosure relates to an ethylene based disentangled polymer and a process for preparing the same, having predetermined modality. The process comprises polymerization of at least one olefinic monomer in the presence of a cata...  
WO/2018/080701A1
Disclosed is a method for polymerizing olefins comprising passing a heterogeneous single-site catalyst to a solution or slurry polymerization reactor in the absence of pre-polymerization, wherein the polymerization reactor operates at a ...  
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/2018/064050A3
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 a...  
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/2018/056654A1
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/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...  

Matches 1 - 50 out of 27,374