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WO/2021/018042A1 |
Disclosed are a catalyst system for olefin polymerization and use thereof. The catalyst system comprises a main catalyst and a cocatalyst. The cocatalyst comprises a twelve-membered ring compound represented by formula (M). The catalyst ...
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WO/2021/020436A1 |
Provided are: polymer ligands with which it is possible to obtain a metal organic framework having a certain thickness and strength while maintaining crystallinity, which had been difficult to accomplish in conventional metal organic fra...
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WO/2021/011632A1 |
This invention relates to a supported catalyst system comprising a first iron based catalyst, a second group 4 metal catalyst, a support material, and an activator; wherein the first catalyst is represented by Formula (I) and the second ...
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WO/2021/004684A1 |
The disclosure relates to a polymerization process. The polymerization process comprises polymerizing an olefin monomer and a comonomer in the presence of a polymerization catalyst in a polymerization step conducted in a polymerization r...
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WO/2021/006245A1 |
A method for producing ethylene according to the present invention includes: an ethylene production step for obtaining an ethylene-containing product that contains ethylene from raw ethanol containing waste-derived ethanol; and at least ...
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WO/2021/001200A1 |
The invention relates to an ethylene polymer comprising a low molecular weight component and a high molecular weight component, wherein - the ethylene polymer has a density of 955 to 977 kg/m3 and a viscosity value η100 of at most 1500 ...
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WO/2021/001855A1 |
The present invention relates to a new, improved and efficient process for synthesizing C2 (ethylene) bridged cyclopentadienyl ligand having formula I: and eventually forming the corresponding ansa-metallocene catalyst from the same; whi...
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WO/2020/262774A1 |
The present invention relates to a producing method for high-functional polybutene with a halogen component removed therefrom, a producing apparatus therefor, and polybutene produced thereby.
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WO/2020/263113A1 |
The present invention relates to a method of reducing polymer deposits on the internal surfaces of a reactor equipment, wherein the polymer is a by-product of the process of olefin oligomerization or is formed during the process of ol...
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WO/2020/255872A1 |
Provided are: a propylene homopolymer; or a copolymer composed of propylene and at most 30 wt% of α-olefin having 2 or 4 to 8 carbon atoms, the homopolymer or the copolymer having an intrinsic viscosity of more than 20 dl/g as measured ...
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WO/2020/255873A1 |
Provided is a polypropylene resin composition that contains the components (A1) and (A2) indicated below and in which the content of the component (A1) is 0.1-10 wt% and the content of the component (A2) is 99.9-90 wt% with respect to th...
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WO/2020/255761A1 |
The present invention addresses the problem of providing a method for producing a copolymer, wherein the amount of crystals and the amount of vinyl bonds (or a glass transition temperature) can be controlled. The solution for the problem...
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WO/2020/244755A1 |
A molecular probe for selective detection of a nitrate and/or a decomposition product of a nitrate by generating a fluorescence signal in response to an excitation in the wavelength range between 340–370 and 480–520 nm, wherein the m...
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WO/2020/239885A1 |
A process for preparing an ethylene polymer in a suspension polymerization comprising separat- ing the formed suspension of ethylene polymer particles in a solid-liquid separator into wet eth- ylene polymer particles and mother liquor, t...
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WO/2020/239603A1 |
Improved preparation process for silica supported catalyst systems, which comprise a specific class of metallocene complexes in combination with a boron containing cocatalyst and an aluminoxane cocatalyst and use of the new, improved cat...
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WO/2020/239887A1 |
A process for preparing an ethylene polymer in a suspension polymerization comprising separating the formed suspension of ethylene polymer particles in a solid-liquid separator into wet ethylene polymer particles and mother liquor, dryin...
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WO/2020/239598A1 |
Improved preparation process for supported catalyst systems, which comprise a specific class of metallocene complexes in combination with a boron containing cocatalyst and an aluminoxane cocatalyst and use of the new, improved catalyst s...
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WO/2020/237159A1 |
This invention relates to a process for forming an azide-grafted polymer. The process comprises mixing a free-radical-reactive polymer with a free-radical initiator and an azide monomer that contains at least one unsaturated C=C bond cap...
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WO/2020/227251A1 |
A method of operating a dump tank of a polymer production process by transferring all or a portion of a content of a polymerization reactor into the dump tank, wherein the reactor contents comprise solid polymer, and liquid and gaseous n...
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WO/2020/226890A1 |
Ethylenically unsaturated polymerization catalyst compositions including an active catalytic metal component and an ionic compound component and methods for making and using same.
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WO/2020/207880A1 |
The present disclosure presents a process for the preparation of a propylene polymer containing a colouring agent, comprising: (i) forming a solid mixture (a/b) of (a) a ZN catalyst component which comprises Mg, Ti, halogen and an intern...
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WO/2020/208218A1 |
The invention relates to a polypropylene composition comprising: (A) a first polypropylene which is a metallocene-catalyzed homopolymer, or a metallocene- catalyzed random copolymer of propylene and of a co-monomer having at most 0.5 % b...
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WO/2020/203274A1 |
The present invention pertains to a production method that is for a catalyst component for olefin polymerization and that comprises a step (3) for granulating, by spraying and drying, a water slurry of an ion exchangeable second layered ...
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WO/2020/172387A9 |
A process forming a high MFR polypropylene includes providing a reactor powder polypropylene, the reactor powder polypropylene having a melt flow rate of less than 100 dg/min. The process also includes mixing the reactor powder polypropy...
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WO/2020/205708A1 |
The present disclosure provides base stocks and or diesel fuel, and processes for producing such base stocks and or diesel fuel by polymerizing alpha-olefins and internal olefins. The present disclosure further provides polyolefin produc...
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WO/2020/197811A1 |
Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and 15-35 wt. % of a homogeneously-branched second ethylene polymer component of higher density than the first ethylene poly...
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WO/2020/192402A1 |
The present invention relates to an olefin polymerization method and system in the field of olefin polymerization. The method comprises: combining supported double catalysts with a series process; after performing heat exchange and gas-l...
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WO/2020/190511A1 |
The present disclosure relates to processes for production of polyolefins from olefin monomer(s) in a gas phase reactor using condensing agent(s) (CAs), and in particular relates to controlling condensed phase cooling in a gas phase reac...
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WO/2020/190510A1 |
This disclosure relates to processes for producing polyolefins in a gas phase reactor using condensing agent(s) (CAs), and real-time calculation of the ratio of one type of CA to another CA within a CA composition. This disclosure provid...
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WO/2020/184791A1 |
An aspect of the present invention provides a method for production of a polyolefin copolymer, the method comprising: a first step of melting an ethylene/α-olefin interpolymer having density of 0.8-0.91 g/ml; and a second step of pyroly...
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WO/2020/183248A1 |
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...
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WO/2020/179792A1 |
The present invention provides a resin for foam blow molding, which contains a polypropylene and is capable of enhancing the expansion ratio. The present invention provides a resin for foam blow molding, which contains a polypropylene,...
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WO/2020/179650A1 |
The purpose of the present invention is to provide a polyethylene powder excellent in terms of solubility and dispersibility and a shaped object (e.g., a microporous film, high-strength fiber, or porous sintered object) comprising the po...
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WO/2020/175482A1 |
The present invention provides: a catalyst which has high activity and enables the production of an olefin polymer that has a polar group; and a method for producing the polymer. A catalyst for olefin polymerization, which contains a m...
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WO/2020/171623A1 |
The present invention relates to polyethylene with high pressure resistance and a crosslinked polyethylene pipe comprising same. Polyethylene according to the present invention has a high melt index and high density and exhibits a suffic...
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WO/2020/171017A1 |
In order to increase the producibility of a variety of molded articles in which polyethylene powder is used as a raw material, it is the purpose of the present invention to provide a polyethylene powder capable of helping ensure edge par...
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WO/2020/171625A1 |
The present invention relates to a crosslinked polyethylene pipe with excellent properties. The crosslinked polyethylene pipe, according to the present invention, has optimized a crosslinking degree and a storage modulus by finding out a...
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WO/2020/171624A1 |
The present invention relates to polyethylene having a high degree of cross-linking, and a cross-linked polyethylene pipe comprising the same. The polyethylene according to the present invention has an ultra-high molecular weight so as t...
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WO/2020/167821A1 |
This invention relates to transition metal complexes of a dianionic, tridentate ligand that features a central neutral heterocyclic Lewis base and two phenolate donors, where the tridentate ligand coordinates to the metal center to form ...
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WO/2020/139120A9 |
The invention relates to polypropylene for preparation of films, in particular, biaxially oriented polypropylene (BOPP) films. The structural characteristics of the claimed polypropylene allow to increase the processing speed (450 m/m...
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WO/2020/167799A1 |
This invention relates to supported catalyst compositions of transition metal complexes of a dianionic, tridentate ligand that features a central neutral heterocyclic Lewis base and two phenolate donors, where the tridentate ligand coord...
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WO/2020/167824A1 |
The present disclosure relates to bis(aryl phenol ate) Lewis base catalysts. Catalysts, catalyst systems, and processes of the present disclosure can provide high temperature ethylene polymerization, propylene polymerization, or copolyme...
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WO/2020/167819A1 |
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 as the Lewis...
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WO/2020/163093A1 |
A method for regulating use of stored diluent in a polymerization process so as to maximize use of diluent recycled diluent recovered from the process, and so minimize use of stored diluent, is disclosed. Also disclosed is apparatus, par...
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WO/2020/162104A1 |
Provided is a composition that is for sealing an organic light-emitting element and that has good "wetness spreading property" which is the rate of reduction of the contact angle (θ) of a droplet with respect to the surface of an inorga...
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WO/2020/156998A1 |
The present invention relates to an improved process for the preparation of metallocenes of the general formula (A) CR2L2MX2 as well as to intermediates useful in the synthesis of said metallocene and the use thereof as a catalyst in a p...
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WO/2020/159712A1 |
The present invention discloses methods for removing volatile components from an ethylene polymer effluent stream from a polymerization reactor, and related polyethylene recovery and volatile removal systems. In these methods and systems...
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WO/2020/152121A1 |
There is described a method for monitoring and controlling the polymerization in a polymerization vessel by using a camera viewing unit to detect features of the polymer particles, or of their environment, compare them to pre-defined acc...
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WO/2020/153959A1 |
A centric spray pipe apparatus is disclosed, The centric spray pipe includes a plurality of nozzles designed to provide full coverage of liquid spray to a vessel.
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WO/2020/149690A1 |
The present invention relates to a method for separating a polybutene, comprising the steps of: (1) injecting, into a distillation column, a polybutene solution having a viscosity, measured by means of a rotational viscometer at 25°C, o...
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