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WO/2022/131693A1 |
The present invention relates to an olefin-based polymer and a preparation method therefor. Specifically, according to an implementation of the present invention, provided are an olefin-based polymer and a preparation method therefor, th...
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WO/2022/131230A1 |
The purpose of the present invention is to provide a borate compound which is useful as a co-catalyst that is used for polymerization of olefins or dienes. The present invention relates to: a borate compound which is represented by formu...
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WO/2022/126941A1 |
An invert phase emulsion having double particle size distribution, the invert emulsion having a particle size distribution of latex particles between 20 nm and 70 nm and between 100 nm and 500 nm in the same invert emulsion system. The p...
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WO/2022/126256A1 |
A process for producing an isoolefin homopolymer comprises: sonicating a solution of an initiator system in an organic solvent, the initiator system comprising a Lewis acid catalyst and a proton source selected from the group consisting ...
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WO/2022/124694A1 |
The present invention relates to an olefin-based polymer, a film prepared therefrom, and preparation methods therefor. An olefin-based polymer according to an implementation of the present invention has excellent processability, and a fi...
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WO/2022/124695A1 |
The present invention relates to an olefin polymer and a preparation method therefor. The olefin polymer according to an embodiment of the present invention has a high melting point and a high crystallization temperature, thus having exc...
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WO/2022/124692A1 |
The present invention relates to an olefinic polymer, and a method for preparing same. The olefinic polymer according to an embodiment of the present invention has excellent melt strength, and thus has excellent bubble stability during b...
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WO/2022/123414A1 |
The copolymerization of ethylene with vinylcyclohexane (VCH) is carried out with a catalyst system comprising a bridged hafnocene. High levels of vinylcyclohexane incorporation can be achieved affording ethylene-vinylcyclohexane copolyme...
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WO/2022/120321A1 |
Provided herein are metallocene-catalyzed polyethylene compositions that exhibit a high degree of broad orthogonal composition distribution ("BOCD"), meaning that they have a relatively high degree of short-chain branching in higher-mole...
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WO/2022/112691A1 |
The invention relates to a catalyst system based on at least one rare-earth metallocene and, as a co-catalyst, a magnesium organic compound of formula RB-(Mg-RA)m-Mg-RB, RB comprising a benzene ring substituted with the magnesium atom, w...
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WO/2022/112389A1 |
A process for the preparation of a solid support for a procatalyst suitable for preparing a catalyst composition for olefin polymerization, said process comprising: A. providing or preparing a compound R4 zMgX4 2-z wherein: R4 is indepen...
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WO/2022/114904A1 |
The present invention provides a polyethylene which has excellent workability and is able to reduce injection molding defect rates, and a method for preparing same.
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WO/2022/114635A1 |
The present invention relates to a transition metal compound, an olefin polymerization catalyst comprising same, and a method for preparing same. Specifically, the present invention relates to a transition metal compound having a carbon-...
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WO/2022/112692A1 |
The invention relates to a catalytic system based on at least one rare-earth metallocene and, as co-catalyst, an organomagnesium compound having the formula X-Mg-RA-Mg-X, where RA is a divalent aliphatic hydrocarbon chain, interrupted or...
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WO/2022/112690A1 |
The invention relates to a diorganomagnesium compound having the formula RB-(Mg-RA)m-Mg-RB, where RB comprises a benzene ring substituted by the magnesium atom, one of the carbon atoms of the benzene ring in the ortho position of the mag...
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WO/2022/114710A1 |
The present invention relates to an organic-inorganic hybrid polyolefin composite and a preparation method thereof.
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WO/2022/112387A1 |
The invention relates to isoprene and butadiene and/or pentadiene stereoblock copolymers in which the different stereoregular blocks, joined to each other by means of a single junction point, have different structures and thermal propert...
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WO/2022/112693A1 |
The invention relates to a telechelic polymer having the formula Z1-POLY-Z2, wherein the term "POLY" denotes a polymer chain which comprises units of a 1,3 diene, units of ethylene and cyclic units, 1,2-cyclohexane units, Z1 and Z2 denot...
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WO/2022/114902A1 |
The present invention provides a polyethylene and a preparation method therefor, wherein the polyethylene has an improved feature of total volatile organic compounds (TVOC) that may be generated by a low-molecular weight polymer and is s...
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WO/2022/114910A1 |
The present invention provides a method for preparing a supported metallocene catalyst, the method being capable of reducing a fine powder generation amount while exhibiting catalyst activity, so as to minimize the generation of fouling ...
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WO/2022/106710A1 |
A process for the preparation of isotactic propylene polymer compositions involving the polymerisation of propylene and optionally one or more comonomers selected from ethylene and α-olefins containing 4 to 12 carbon atoms in one or mor...
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WO/2022/108233A1 |
The present invention relates to an olefin-based polymer, a film prepared therefrom, and preparation methods therefor. An olefin-based polymer according to an embodiment of the present invention has excellent processability, and a film p...
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WO/2022/108804A1 |
The present invention relates to a process for polymerization of a monomer, and in particular whereby polymer particles are transferred from an upstream polymerization reactor, which process comprises: (a) discharging a mixture comprisin...
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WO/2022/106688A1 |
The present invention relates to a process for solution copolymerization process to produce a functionalized polyolefin using a catalyst system comprising a hafnium or zirconium complex of a polyvalent aryloxyether and a co-catalyst sele...
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WO/2022/108974A1 |
The present disclosure relates to supported catalyst systems for olefin polymerization, catalyst system precursors, methods of producing the precursors and catalyst systems and polyolefins formed from the catalyst systems.
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WO/2022/108252A1 |
The present invention relates to an olefin-based polymer, a film prepared therefrom, and preparation methods therefor. An olefin-based polymer according to an embodiment of the present invention has excellent processability, and a film p...
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WO/2022/109518A1 |
A gas phase reactor startup process comprising providing a reactor having a vertical cylindrical portion from a distributor plate at the base to a neck at the top and comprising a fluidized bed zone therebetween, wherein above the neck a...
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WO/2022/108971A1 |
The present disclosure relates to a precursor for making an activator in a catalyst system for olefin polymerization and methods of producing the precursor, the catalyst system, and the polyolefin. In at least one embodiment, an alumoxan...
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WO/2022/108167A1 |
The present invention relates to a polyolefin. More particularly, the present invention relates to a polyolefin capable of exhibiting improved mechanical properties such as excellent drop impact strength.
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WO/2022/108254A1 |
The present invention relates to an olefin-based polymer and a method for preparing same. Specifically, the present invention relates to an olefin-based polymer for which processability can be controlled according to a change in density,...
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WO/2022/108803A1 |
The present invention relates to a process for supply of a polymerization catalyst component to a polymerization reactor which comprises: a. Providing a first stream comprising the catalyst component, b. Providing a diluent stream in a s...
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WO/2022/104877A1 |
Disclosed are an ethylene copolymer and a method for preparing same, and a composition, crosslinked polymer, and tire containing said ethylene copolymer; the ethylene copolymer contains an ethylene structural unit derived from ethylene a...
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WO/2022/106689A1 |
The present invention relates to a process for solution copolymerization process to produce a functionalized polyolefin using a catalyst system comprising a hafnium or zirconium complex of a polyvalent aryloxyether and a co-catalyst sele...
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WO/2022/103045A1 |
The present invention relates to a mixed catalyst composition comprising different transition metal compounds, a catalyst for olefin polymerization, comprising same, and preparation methods therefor. Specifically, the present invention r...
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WO/2022/104029A1 |
Provided herein are compounds that can be used as a catalyst to form cyclic polymers, methods of making and using the same. For example, provided herein are compounds of formula (I) or (II).
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WO/2022/097580A1 |
The compound having a dipicolylamine moiety according to the present invention is represent by formula (I): A1-X-B1. In formula (I), X includes a repeating unit represented by formula (II) and having a dipicolylamine moiety, and A1 and B...
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WO/2022/098412A1 |
Compositions of swellable non-toxic hydrogels and their use in conformance control are described herein. More specifically, the present invention generally relates to the hydrogels compositions that can be used to treat the oil reservoir...
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WO/2022/094508A1 |
A polypropylene having a p-xylene solubles (XS) content of 1.5 wt% or less based on the weight of the polypropylene, wherein the polypropylene is made by combining propylene with a solid catalyst comprising a magnesium compound having be...
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WO/2022/091867A1 |
Provided is a solid catalytic component for olefin polymerization capable of suitably producing at high activity polymer particles having a suppressed content ratio of fine powder and reduced surface stickiness when used in the polymeriz...
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WO/2022/093814A1 |
This invention relates to a non-aromatic hydrocarbon soluble catalyst compound represented by the formula: wherein: M is a Group 4 metal; each X is independently a leaving group, such as an anionic leaving group; m is 1, 2 or 3; L is a G...
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WO/2022/094232A1 |
Embodiments in accordance with the present invention encompass compositions containing one or more polycycloolefinic monomers and at least one multifunctional olefinic monomer which when subjected to a suitable temperature undergoes mass...
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WO/2022/094236A1 |
Embodiments in accordance with the present invention encompass compositions containing one or more polycycloolefinic monomers, optionally at least one multifunctional olefinic monomer and a suitable solvent, which exhibits long shelf lif...
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WO/2022/089423A1 |
Disclosed in the present invention is a solid component for preparing an olefin polymerization catalyst, and a preparation method therefor and an application thereof. The solid component comprises: (i) a magnesium compound as represented...
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WO/2022/091938A1 |
Provided is a method for producing a solid catalyst component for olefin polymerization, the method being characterized by having: a first production step for obtaining a contact product by bringing titanium tetrachloride, a magnesium co...
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WO/2022/092704A1 |
The present invention relates to polyethylene. More specifically, the present invention relates to polyethylene, which has excellent abrasion resistance so as to be suitable for fiber production.
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WO/2022/087563A1 |
Ethylene-based polymers having a density of 0.952 to 0.968 g/cm3, a ratio of HLMI/MI from 185 to 550, an IB parameter from 1.46 to 1.80, a tan δ at 0.1 sec-1 from 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rat...
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WO/2022/087121A1 |
This invention relates to transition metal complexes of a multi-dentate ligand that features a neutral heterocyclic Lewis base and a second Lewis base, where the multi-dentate ligand coordinates to the metal center to form at least one 8...
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WO/2022/078046A1 |
The present invention provides a polymer having a dispersing function, a preparation method therefor and use thereof as a cement dispersant. The polymer comprises a structural unit a, a structural unit b and a structural unit c; the stru...
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WO/2022/081040A1 |
The invention relates to the field of chemistry and technology for the organic synthesis of high molecular weight compounds, and more particularly to a polymerization reactor and to methods for producing high purity poly-1,4-ethylenepipe...
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WO/2022/080713A1 |
The present invention provides: a metallocene-supported catalyst that can significantly reduce the generation of fine powder during the preparation of an olefin polymer while exhibiting excellent catalytic activity; and a method for prep...
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