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Matches 1 - 50 out of 28,722

Document Document Title
WO/2021/206941A1
A low-density polyethylene having a melt strength measured at 190 C that is greater than or equal to 5.5 cN, a density that is greater than or equal to 0.9210 g/cm3 and less than or equal to 0.9275 g/cm3, and, and a melt index I2 measure...  
WO/2021/197769A1
The present invention relates to a thermoplastic material, wherein the thermoplastic material comprises ethylene-based polymer material, wherein the ethylene-based polymer material has a Vicat softening temperature of ≥ 50°C as determ...  
WO/2021/200991A1
According to the present invention, an ethylene resin composition which satisfies the requirements (1) to (4) as a material for packaging materials and the like enables the achievement of a film that has an excellent balance between the ...  
WO/2021/193027A1
A pipe (10) includes a polyethylene-based resin layer (21) which comprises a polyethylene-based resin composition as a main component. The polyethylene-based resin layer (21) forms a pipeline-material inner surface (10a). The polyethylen...  
WO/2021/193813A1
A polypropylene composition including: as a component (A), a propylene (co)polymer that includes 0-2 wt% of a comonomer-derived unit selected from the group consisting of ethylene, a C4-C10-α-olefin, and a combination of these; and as a...  
WO/2021/193650A1
Provided are: a catalyst that is for olefin polymerization and that has a high catalytic activity (polymerization activity); a production method for the catalyst for olefin polymerization; and a production method for an olefin polymer us...  
WO/2021/194831A1
The alkylation of transition metal coordination catalyst complexes (such as metallocenes and/or post-metallocenes) in non-polar solvents with high conversion to the di alkylated transition metal coordination catalyst complex may be accom...  
WO/2021/188733A1
The present disclosure provides Lazarev reactor that sustains reaction of two dimensional polymerization on the interface of two immiscible solutions A and B carrying components of reaction to the interface where reaction takes place and...  
WO/2021/182439A1
The purpose of the present invention is to provide: a borate compound-containing composition which is useful as a promoter for polymerization of olefins or dienes and which is soluble in a hydrocarbon solvent; and a manufacturing method ...  
WO/2021/182438A1
The purpose of the present invention is to provide a composition containing a borate compound which is useful as a cocatalyst for the solution polymerization of olefin or diene and is soluble in a hydrocarbon solvent. According to the ...  
WO/2021/183867A1
The present disclosure provides compositions and methods for degrading polyethylene. The compositions utilized in the present disclosure may contain microbes from the genus Pseudomonas and/or various enzymes, which when brought into cont...  
WO/2020/183248A8
A method may include polymerizing ethylene in a tubular reactor, where the polymerization is substantially free of a chain transfer agent. A method may include polymerizing ethylene in a tubular reactor, the ethylene having a specific de...  
WO/2021/173148A1
A composition, such as a catalyst precursor or a catalyst comprising a Cr coated silica support with particularly defined levels of Na and Al, such that the resulting Cr/Silica catalyst has an increased MI potential is disclosed. In an e...  
WO/2021/173362A1
The present disclosure relates to Lewis base catalysts. Catalysts, catalyst systems, and processes of the present disclosure can provide high temperature ethylene polymerization, propylene polymerization, or copolymerization. In at least...  
WO/2021/173361A1
Metallocene complexes represented by structure (I) are useful for alpha olefin oligomerization in the presence of an activator to generate polyalphaolefins having a high percentage of vinylidene termination and relatively low Mn values. ...  
WO/2021/168023A1
Disclosed are metallocene compounds, catalyst compositions comprising a metallocene compound, processes for polymerizing olefins, methods for making catalyst compositions, olefin polymers and articles made from olefin polymers. In an asp...  
WO/2021/151632A1
The present invention relates to a process for reducing low molecular weight oligomers and wax build-up in one or more recycle coolers in a high pressure polymerization process by means of a gas stream, which is heated and/or free of wax...  
WO/2021/155331A1
The present invention provides a compound comprising a moiety of the formula: (I) where said moiety of formula I is a radical, a cation, or a radical dication; Y1, Y2, Y3, R1a, R1b, R1c, R1d, R2a, R2b, R2c, R2d, R3a, R3b, R3c, and R3d ar...  
WO/2021/154472A1
A polymerization process may include: polymerizing a monomer having 4 or less carbons and a comonomer having 6 or more carbons in the presence of an inert isomer/saturate of the comonomer to yield a product stream comprising a polymer, u...  
WO/2021/146448A1
The invention relates to diacyl derivatives of certain polyether polymers, compositions comprising the same, and methods of making the same via reaction with substituted or unsubstituted cyclic anhydrides, and methods of using the same.  
WO/2021/118751A3
Methods for producing a polymer include contacting at least one monomer under polymerization conditions with a fluidized bed of a polymerization catalyst on a particulate support; measuring a plurality of pressures of the fluidized bed a...  
WO/2021/138657A1
A system and method for producing 1-butene and ultra-high-molecular-weight polyethylene (UHMWPE), including feeding a catalyst, an antifouling co-catalyst, and ethylene to a reactor, and dimerizing ethylene into 1-butene and polymerizing...  
WO/2021/129432A1
Provided is a propylene polymerization method, comprising the following steps: 1) performing a pre-polymerization reaction: mixing and stirring a catalyst and liquid-phase propylene cooled to 5-10°C in a pre-polymerization reaction zone...  
WO/2021/122140A1
The invention relates to a gas/liquid oligomerization reactor having successive zones with variable diameters. The invention also relates to a process for the oligomerization of ethylene using a gas/liquid oligomerization reactor having ...  
WO/2021/126692A1
The present disclosure related to iron-containing compounds including a 2,6-diiminoaryl ligand and one or more substituted hydrocarbyl substituents. Catalysts, catalyst systems, and processes of the present disclosure can provide polyole...  
WO/2021/118751A2
Methods for producing a polymer include contacting at least one monomer under polymerization conditions with a fluidized bed of a polymerization catalyst on a particulate support; measuring a plurality of pressures of the fluidized bed a...  
WO/2021/119089A1
The present disclosure provides methods and systems for introducing an activator to a polymerization reactor. The methods may include introducing liquid activator to a mixing vessel or an inline mixer and mixing aliphatic hydrocarbon sol...  
WO/2021/119042A2
Disclosed are a method and system for propylene polymerization utilizing a loop slurry reactor. The method can include polymerizing propylene in a loop slurry reactor under bulk polymerization conditions to produce polypropylene. The pro...  
WO/2021/115908A1
The invention relates to a gas phase reactor (1), that comprises a gas distribution plate (11) arranged inside the gas phase reactor; a first outlet (12) for continuously withdrawing a first product stream, the first outlet (12) being ar...  
WO/2021/113951A1
Polymers are created via the depolymerization of a polypropylene feedstock. The polymers can be modified/grafted with maleic anhydride. In some embodiments the polypropylene feedstock contains recycled or discarded polypropylene. In some...  
WO/2021/118145A1
The present invention relates to a method for preparing an olefin-based polymer by gas-phase polymerization. Specifically, the present invention relates to a method for preparing an olefin-based polymer by gas-phase polymerization of ole...  
WO/2021/110563A1
A catalyst for the polymerization of olefins comprising (a) a solid catalyst component containing Mg, Ti and optionally an internal electron donor compound (ID), (b) an aluminium alky compound and (c) an external electron donor (ED) sele...  
WO/2021/112617A1
The present invention relates to: a catalyst composition comprising an oxonium ion-based catalyst and an additive; and a method for preparing polyisobutene by using same.  
WO/2021/110645A1
A process for preparing ethylene polymers comprising polymerizing ethylene or copolymerizing ethylene and one or more comonomers at a temperature from 180°C to 350°C and a pressure of from 110 MPa to 350 MPa in a continuously operated ...  
WO/2021/108134A1
The present disclosure provides an ethylene-based polymer composition formed by high pressure (greater or equal to 100 MPa) free radical polymerization. The ethylene-based polymer composition includes ethylene monomer and a mixture of hy...  
WO/2021/108131A1
The present disclosure provides a composition. In an embodiment, the composition is an ethylene-based polymer composition formed by high pressure (greater or equal to 100 MPa) free radical polymerization. The composition includes ethylen...  
WO/2021/104837A1
A process and a system for collecting samples of a polymerization catalyst or of a catalyst-containing polymer from an operation unit of a polymerization plant, the operation unit comprising an upper end and a lower end, the process comp...  
WO/2021/107723A1
The present invention relates to a polyolefin-based resin composition and a medical hose prepared therefrom, the polyolefin-based resin composition comprising: low-density polyethylene; polyolefin-based elastomer; and random polypropylen...  
WO/2021/108132A1
The present disclosure provides a composition. In an embodiment, the composition is an ethylene-based polymer composition formed by high pressure (greater or equal to 100 MPa) free radical polymerization. The ethylene-based polymer compo...  
WO/2021/108049A1
A method of producing a supported catalyst includes introducing a dissolved catalyst solution into a catalyst mix vessel, and after introducing the dissolved catalyst solution into the catalyst mix vessel, introducing a porous support ma...  
WO/2021/099123A1
A process for preparing a catalyst component comprising Mg, Ti, and at least an electron donor compound (ID) said process comprising two or more steps of reaction in which in a first step (a) carried out at a temperature ranging from 0 t...  
WO/2020/112483A8
A composition comprising polypropylene having a high melt strength suitable for an injection stretch blow molding (ISBM) process is provided. Such a composition includes a polypropylene (PP) copolymer having a branched structure. The PP ...  
WO/2021/100645A1
The present invention relates to polypropylene resin foam particles, the base resin of which has polypropylene resin as the main component, wherein the polypropylene resin foam particles are characterized in that: the polypropylene resin...  
WO/2021/099947A1
The present disclosure relates to a catalyst composition and a process for preparation thereof. The catalyst composition of the present disclosure is stable, and produces polyolefin having narrow molecular weight distribution during the ...  
WO/2021/085820A1
The present invention relates to a decrosslinked polyolefin resin for a cable filler, and a resin composition comprising same. Specifically, the present invention relates to a decrosslinked polyolefin resin, and a resin composition compr...  
WO/2021/083350A1
The present invention relates to a diimine metal complex represented by formula I, a preparation method therefor, and application thereof. The complex is used as a main catalyst in catalysts for olefin polymerization, and can achieve cat...  
WO/2021/085929A1
The present invention relates to an olefin-based polymer and a film prepared therefrom. According to an embodiment of the present invention, an olefin-based polymer, especially, a linear low-density polyethylene has a relatively wide dis...  
WO/2021/082278A1
Disclosed are a class of fluorine-containing α-diimine nickel complexes for preparing a polyolefin elastomer and intermediates thereof. The class of complexes have a single catalytic active center, the molecular weight of a polymer can ...  
WO/2021/083194A1
Disclosed is a catalyst for olefin polymerization, comprising a main catalyst and a cocatalyst; the main catalyst is a bisphenol metal complex represented by formula I, and the co-catalyst comprises an organoaluminum compound; in formula...  
WO/2021/083307A1
The present invention relates to a method for preparing a high viscosity index poly-α-olefin, comprising: α-olefin is subject to a polymerization reaction in the presence of a metallocene catalyst to obtain a poly-α-olefin, wherein th...  

Matches 1 - 50 out of 28,722