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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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WO/2022/079190A1 |
The invention relates to a polypropylene composition comprising:(a) a first metallocene-catalyzed polypropylene (RPP-A) which is homopolymer, or a random copolymer of propylene and of a co-monomer; and (b) a second metallocene-catalyzed ...
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WO/2022/082155A1 |
A bimodal polymer composition comprising a lower molecular weight homopolymer and a higher molecular weight copolymer wherein the bimodal polymer composition has a density of from about 0.930 gram per cubic centimeter (g/cc) to about 0.9...
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WO/2022/078492A1 |
The present invention provides a magnesium-based solid and a solid catalyst component for olefin polymerization. By means of determination based on a nitrogen adsorption method, the solid has a multimodal pore distribution and a specific...
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WO/2022/081685A1 |
Embodiments are directed to a metal-ligand complex of formula (I). In addition, a polymerization process includes polymerizing at least one olefin in the presence of a catalyst system comprising the metal-ligand complex and at least one ...
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WO/2022/077235A1 |
Provided is a hyperbranched polymer obtained by copolymerization of (a) 90 to 99.5 mole % of at least one alkyl (meth) acrylate; and (b) 0.5 to 10 mole % of at least one trithiocarbonate, wherein the trithiocarbonate includes at least on...
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WO/2022/076216A1 |
This invention relates to a supported catalyst system comprising: (i) at least one first catalyst component comprising a group 4 metallocycle containing metallocene complex; (ii) at least one second catalyst component comprising a 2,6-bi...
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WO/2022/075669A1 |
The present invention relates to a novel metallocene compound, a catalyst composition comprising the metallocene compound, and a method for preparing an olefin polymer using the catalyst composition.
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WO/2022/075578A1 |
The present invention relates to a method for preparing a vinyl cyanide compound-conjugated diene rubber-aromatic vinyl compound graft copolymer, a method for preparing a thermoplastic resin composition comprising same, and a thermoplast...
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WO/2022/070758A1 |
This transparent article is formed by molding a cyclic olefin copolymer or a resin composition containing the same, wherein the cyclic olefin copolymer is obtained through a process including: a step for charging a polymerization contain...
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WO/2022/070958A1 |
A method for producing a cycloolefin copolymer is provided by which the cycloolefin copolymer can be efficiently produced by copolymerizing monomers comprising a norbornene monomer and ethylene while inhibiting the formation of polyethyl...
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WO/2022/069412A1 |
The present inventions concerns a copolymer of ethylene and an C3 to C8 alpha-olefin, wherein the copolymer has a density of 870 to 890 kg/m3 measured according to ISO 1183, a MFR2 of 0.5 to 8.0 g/10min measured according to ISO 1133, wh...
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WO/2022/072223A1 |
A bimodal poly(ethylene-co-1-hexene) copolymer composition, methods of making and using, and manufactured articles made therefrom and uses thereof.
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WO/2022/069411A1 |
Ethylene-1-octene copolymer characterized by a density in the range of 850 kg/m3 to 930 kg/m3 measured according to ISO 1183-187, a melt flow rate MFR2 (190°C, 2.16 kg) in the range of from 0.3 g/10 min to 100 g/10 min measured accordin...
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WO/2022/071115A1 |
The present invention addresses the problem of providing a method in which it is possible to comfortably suppress a runaway reaction when a heat removal function is lost or depleted during continuous polymerization of a styrene-acrylonit...
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WO/2022/069410A1 |
The present inventions concerns a copolymer of ethylene and an C3 to C8 alpha-olefin, wherein the copolymer has a density of 890 to 915 kg/m3 measured according to ISO 1183 and a MFR2 of 0.5 to 8.0 g/10min measured according to ISO 1133,...
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WO/2022/070110A1 |
A thermoformable film comprises a polyethylene composition. The polyethylene composition comprises a first polyethylene which is an ethylene copolymer having a weight average molecular weight of from 70,000 to 250,000 and a molecular wei...
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WO/2022/071116A1 |
A purpose of the present invention is to provide a thioxanthone compound having excellent reactivity to long-wavelength light. The present invention relates to a photopolymerization initiator comprising the thioxanthone compound, a curab...
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WO/2022/072180A1 |
The present disclosure relates to bis(heterocyclic-olate) Lewis base catalysts. Catalysts, catalyst systems, and processes of the present disclosure can provide high temperature ethylene polymerization, propylene polymerization, or copol...
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WO/2022/071735A1 |
The present invention provides a polyethylene composition and a method for preparing same, the polyethylene composition being capable of forming a molded article that can ensure excellent environmental stress cracking resistance, and imp...
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WO/2022/070959A1 |
Provided is a cyclic olefin copolymer production method that enables efficient production of a cyclic olefin copolymer through copolymerization of a monomer including ethylene and a norbornene monomer, while suppressing generation of pol...
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WO/2022/071738A1 |
The present invention relates to polyethylene and a method for preparing same. More specifically, the present invention relates to polyethylene and a method for preparing same, wherein the polyethylene has a low melt index, a narrow mole...
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WO/2022/065902A1 |
The present invention relates to a conjugated diene-based polymer having high processability and excellent compounding properties, a method for producing same, and a rubber composition comprising same, and provides a neodymium-catalyzed ...
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WO/2022/062944A1 |
Provided is ultra-high-molecular-weight polyethylene particles. The particle size of the particles is less than that of a conventional commercially available ultra-high-molecular-weight polyethylene, and the density of the particles is s...
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