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Matches 1 - 50 out of 28,261

Document Document Title
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...  
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...  
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,...  
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...  
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...  
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...  
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...  
WO/2020/172387A1
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
WO/2020/060889A3
Catalyst preparation systems and methods for preparing reduced chromium catalysts are disclosed, and can comprise irradiating a supported chromium catalyst containing hexavalent chromium with a light beam having a wavelength within the U...  
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...  
WO/2020/060888A3
Supported chromium catalysts with an average valence less than +6 and having a hydrocarbon-containing or halogenated hydrocarbon-containing ligand attached to at least one bonding site on the chromium are disclosed, as well as ethylene-b...  
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.  
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...  
WO/2020/136443A1
Methods may include reacting an antistatic agent with at least one alkylaluminum to form an antistatic complex, and may further include feeding the antistatic complex into a polymerization process. Methods of using an antistatic agent in...  
WO/2020/139119A1
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...  
WO/2020/139120A1
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...  
WO/2020/136444A1
A method of forming polymerization auxiliaries for a polymerization process may include combining an antifouling agent with a killer agent to form an auxiliary composition; and contacting the auxiliary composition with an aikylaluminum. ...  
WO/2020/127079A1
A process for polymerizing ethylene in a high-pressure polymerization system comprising a continuously operated polymerization reactor and a reactor blow down system comprising an emergency valve, a reactor blow down vessel containing an...  
WO/2020/128328A2
The present invention relates to the use of at least one peroxide chosen from the group consisting of hemi-peroxyacetals, alone or in combination with one or more different additional peroxide(s), for radical polymerisation or copolymeri...  
WO/2020/124212A1
The invention relates to an efficient process for the preparation of isoolefin polymers such as polyisobutene or butyl rubber by polymerization of isobutene and optionally further monomers in the presence of an initiator system comprisin...  
WO/2020/124556A1
Disclosed are a large-steric-hindrance asymmetric (alpha-diimine)nickel olefin catalyst based on 1,2-benzoacenaphthenequinone as a skeleton, and a preparation method and an application thereof. The structural formula of the large-steric-...  
WO/2020/123973A1
Disclosed herein too is a method comprising charging to a reactor system a feed stream comprising a catalyst, a monomer and a solvent; reacting the monomer to form a polymer; where the polymer is contained in a single phase polymer solut...  
WO/2020/123971A1
Disclosed herein is a system for solution polymerization comprising a reactor system that is operative to receive an anti-solvent, a monomer, and a solvent, and to react the monomer to form a polymer; where the anti-solvent is not a solv...  
WO/2020/120935A1
Compounds suitable for use in the polymerisation of olefins, such as ethene, are described. Also described is a process for polymerising olefins using the described compounds.  
WO/2020/116368A1
A resin composition which contains a 4-methyl-1-pentene copolymer (A) that satisfies a specific requirement and a 4-methyl-1-pentene copolymer (B) that satisfies a specific requirement, and which is configured such that the content of th...  
WO/2020/115071A1
An adhesive polymer composition comprising a non-elastomeric copolymer of ethylene and one or more comonomers having 3 to 10 carbon atoms, and an elastomer is disclosed herein. The non-elastomeric copolymer is present in an amount of 60 ...  
WO/2020/107926A1
A catalyst used for producing ultra-high molecular weight polyolefin, a preparation method therefor and an application thereof. The catalyst comprises: an inorganic carrier carrying a surfactant, and a catalytic component carried on the ...  
WO/2020/112483A1
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/2020/105891A1
The present invention provides a method for preparing a polybutene oligomer, comprising a step of oligomerizing a polymerization solution, which comprises, in the presence of an organometallic catalyst, a halogenated hydrocarbon solvent,...  
WO/2020/101373A1
The present invention relates to a supported catalyst for propylene polymerization in which a first transition metal compound contributing to the production of crystalline polypropylene and a second transition metal compound contributing...  
WO/2020/096735A1
A method of polymerizing an olefin monomer to make a polyolefin composition comprising a polyolefin polymer, the method comprising contacting a solution of an alkane-soluble non-metallocene precatalyst dissolved in an alkane solvent with...  
WO/2020/096645A1
This invention relates to a polyethylene composition, and films therefrom, comprising at least 65 wt% ethylene derived units and from 0.1 to 35 wt% of C3-C12 olefin comonomer derived units, where the polyethylene composition has: a) an R...  
WO/2020/094449A1
The invention relates to a process for the preparation of low density polyethylene (LDPE) wherein the polymerisation takes place in a tubular reactor at peak temperatures ranging from 180 °C to 350 °C and at pressures ranging from 150 ...  
WO/2020/096732A1
A compound of formula (1) as drawn in the description, wherein M is a Group 4 metal, one R is a silicon-containing organic solubilizing group, and the other R is a silicon-containing organic solubilizing group or a silicon-free organic s...  
WO/2020/095395A1
Disclosed is an ethylene-α-olefin-nonconjugated polyene copolymer rubber satisfying the following requirements (A) and (B): (A) A proportion of a cyclohexane insoluble component at 25°C is from 0.3% to 50% by mass with respect to a mas...  
WO/2020/096734A1
A compound of formula (1) as drawn herein, wherein M is a Group 4 metal and each R independently is a silicon-free organic solubilizing group. A method of synthesizing the compound (1). A solution of compound (1) in alkane solvent. A cat...  
WO/2020/096182A1
The present invention relates to a method for predicting physical properties of a polyethylene resin, wherein a suitable crosslinking agent input ratio in a manufacturing process of low-density crosslinked polyethylene resins and physica...  
WO/2020/096475A1
The present invention relates to an adhesive polyethylene composition for use as an adhesive layer in multilayer articles. The adhesive composition according to the invention comprises, relative to its total weight: A) from 59.9 to 81...  
WO/2020/096474A1
The present invention relates to an adhesive polyethylene composition for use as an adhesive layer in multilayer articles. The adhesive polyethylene composition according to the invention comprises: A) from 50 to 80 wt.% of a linear l...  

Matches 1 - 50 out of 28,261