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WO/2018/044395A1 |
This invention relates to a process for forming polymer including: polymerizing a monomer dissolved in a solvent in the presence of a catalyst system under conditions to obtain a first effluent stream including a solution of the polymer ...
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WO/2018/038796A1 |
A process for reducing the level of hydrogen in certain polymerization effluent and recycle streams containing unreacted propylene monomers and hydrogen by contacting the streams with a hydrogenation catalyst so as to convert at least pa...
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WO/2018/038880A1 |
Phosphasalen transition metal complexes are disclosed for use in alkene polymerization to produce polyolefins. The transition metal complexes are represented by the formula: (Formula (I)) wherein M is a Group 4 metal; each of X1 and X2 i...
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WO/2018/037849A1 |
Provided is a modified polyolefin-based resin which has excellent adhesiveness to polyolefin-based substrates and has excellent adhesiveness to polycarbonate-based substrates and to polystyrene-based substrates. The modified polyolefin-b...
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WO/2018/031043A1 |
Surface-modified polymer compositions are provided. The surface-modified polymer compositions can include a polymer and a multifunctional linker. The surface-modified polymer compositions can include a polymer, a multifunctional linker, ...
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WO/2018/031157A1 |
Disclosed is a solution polymerization process, or, alternatively, a method of delivering powder catalysts to a solution polymerization reactor, comprising combining a homogeneous single-site catalyst precursor with a-olefin monomers to ...
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WO/2018/031046A1 |
Surface-modified polymer compositions are provided. The surface-modified polymer compositions can include a polymer and a multifunctional linker. The surface-modified polymer compositions can include a polymer, a multifunctional linker, ...
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WO/2018/026330A1 |
The present invention relates to a porous catalyst support comprising magnesium (Mg) and a modifier and preparation process thereof. Also, the present invention relates to an olefin polymerization catalyst comprising a transition metal c...
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WO/2018/025862A1 |
A method for producing a solid catalyst component for olefin polymerization, said solid catalyst component containing a titanium atom, a magnesium atom, a halogen atom and an internal electron donor. This method for producing a solid cat...
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WO/2018/022199A1 |
Described herein are processes and systems for purifying an olefin stream which has at least 99 mol% ethylene, involving use of a sulfur guard bed to yield an effluent from the olefin stream which is substantially free of sulfur; a hydro...
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WO/2018/022238A1 |
This invention relates to novel transition metal catalyst compounds comprising four oxygen atoms bonded to a transition metal where two of the oxygen groups are bond to the metal by dative bonds, catalyst systems comprising such and poly...
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WO/2018/022249A1 |
Heterocyclic amido transition metal complexes are disclosed for use in alkene polymerization to produce polyolefins, preferably multimodal polyolefins. The heterocyclic amido transition metal complexes are formed by the chelation of a tr...
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WO/2018/021446A1 |
Provided are a novel catalyst component having superior polymerization activity for production of a polymer and a copolymer of an α-olefin, particularly a polymer having a high molecular weight, and a method for producing a polymer and ...
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WO/2018/022279A1 |
Phenolate ligands and transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins.
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WO/2018/020122A1 |
The present invention relates to a catalytic system made of at least one preforming monomer which is ethylene or a mixture of ethylene and a conjugated diene, a metallocene of formula{P(Cp1)(Cp2)Y} or Cp3Cp4Y, an organometallic compound ...
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WO/2018/020123A1 |
The present invention relates to a catalytic system made of at least isoprene as a preforming monomer, a metallocene of formula {P(Cp1)(Cp2)Y}, an organometallic compound as a co-catalyst, Y designating a group comprising a rare-earth me...
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WO/2018/020124A1 |
The present invention relates to a one-pot method for preparing a preformed catalytic system from a rare-earth metallocene in a hydrocarbon solvent in three managed steps.
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WO/2018/022219A1 |
The present invention relates to a bimodal polypropylene composition comprising a blend of a HMW polypropylene component and a LMW polypropylene component, where the high molecular weight (HMW) component of the bimodal composition has a ...
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WO/2018/022263A1 |
This disclosure describes polymerization processes and processes for quenching polymerization reactions using high molecular weight polyhydric quenching agents.
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WO/2018/021656A1 |
The present invention relates to a high-density ethylene-based polymer comprising an ethylene homopolymer or a copolymer of ethylene, and at least one type of comonomer selected from the group consisting of an α-olefin, a cyclic olefin,...
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WO/2018/016712A1 |
The present invention provides a method for oligomerizing an olefin, comprising the steps of putting, into a reactor: an oligomerization catalyst comprising a transition metal source, a hetero atom ligand and an organic ligand, or a tran...
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WO/2018/015306A1 |
The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 70 mol%. The present invention furthe...
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WO/2018/012792A1 |
Provided is a method for oligomerization of ethylene, and more particularly, a method for producing 1-hexene and 1-octene at a high selectivity under an ethylene atmosphere by inducing a remarkably improved catalytic activity while effec...
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WO/2018/012793A1 |
Provided is a method for oligomerization of ethylene, and more particularly, a method for producing 1-hexene and 1-octene at a high selectivity under an ethylene atmosphere by inducing a remarkably improved catalytic activity while effec...
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WO/2018/009034A2 |
The present invention relates to a reactor for a solution process using a metallocene catalyst to prepare polyolefin polymers, and to a reactor for solution polymerization process of polymers, comprising: a reaction tank for preparing po...
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WO/2018/005201A1 |
Quinolinyldiamido transition metal complexes are disclosed for use in alkene polymerization to produce multimodal polyolefins.
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WO/2017/220018A1 |
Disclosed is a catalyst pre-contact method for the continuous polymerization of an olefin, wherein a primary catalyst, a co-catalyst and, optionally, an external electron donor are mixed and then undergo a pre-contact reaction, with the ...
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WO/2017/220512A1 |
The present invention relates to a compound according to Formula (3), wherein the compound comprises from 28 wt.% to 100 wt.% bio-based carbon content, relative to the total mass of carbon in the compound, measured according to standard ...
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WO/2017/223329A1 |
A process to form an ethylene-based polymer comprising polymerizing a mixture comprising ethylene, in the presence of a free-radical initiator, and in a tubular reactor system comprising at least two ethylene-based feed streams, and a re...
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WO/2017/223334A1 |
A process to form an ethylene-based polymer, as described herein, in a tubular reactor system comprising at least three ethylene-based feeds, and at least four reaction zones, and where the weight ratio of "the ethylene-based feed to the...
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WO/2017/223511A1 |
A method of increasing a polymerization reaction rate of a base monomer composition that has slow free-radical polymerization kinetics. The method comprises combining an effective amount of a nanogel to the base monomer composition to fo...
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WO/2017/223324A1 |
A high pressure polymerization, as described herein, to form an ethylene-based polymer, comprising the following steps: polymerizing a reaction mixture comprising ethylene, using a reactor system comprising at least three ethylene-based ...
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WO/2017/216022A1 |
The present invention relates to alkenyl succinic acid derivatives and to a method for the production and use thereof.
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WO/2017/216550A1 |
Constrained geometry catalytic compounds are disclosed as well as catalytic compositions comprising the compounds supported on solid support materials. The compounds and compositions are useful as catalysts in the polymerisation and copo...
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WO/2017/213832A1 |
Methods for controlling the productivity of an olefin polymer in a polymerization reactor system using a halogenated hydrocarbon compound are disclosed. The productivity of the polymer can be increased via the addition of the halogenated...
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WO/2017/209372A1 |
The present invention relates to a high-density ethylene-based polymer comprising an ethylene homopolymer or a copolymer of ethylene and at least one comonomer selected from the group consisting of an α-olefin, a cyclic olefin and a str...
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WO/2017/207280A1 |
The invention relates to a composition comprising at least one chromium precursor, at least one heteroaromatic ligand and, optionally, at least one activator. The invention also relates to the method for producing the composition accordi...
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WO/2017/209283A1 |
In order to provide stretched fibers formed from a polypropylene, which have excellent thermal creep resistance, break strength and stiffness, a production method according to the present invention is characterized by comprising a step w...
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WO/2017/210581A1 |
The present invention relates to an aqueous composition with enhanced stability for hard surface applications containing at least one lipophilic compound and at least one copolymer, in which the at least one copolymer is a comb-type bran...
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WO/2017/204830A1 |
This invention relates bisindenyl metallocene catalyst compounds having long (at least 4 carbon atoms) linear alkyl groups substituted at the two position and substituted or unsubstituted aryl groups at the four position and process usin...
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WO/2017/205143A1 |
Disclosed herein are catalyst compositions containing bicyclic bridged metallocene compounds. These catalyst compositions can be used for the polymerization of olefins. For example, ethylene polymers produced using these catalyst composi...
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WO/2017/204476A1 |
The present invention relates to an oligomerizing catalyst comprising a transition metal or transition metal precursor, a halogen-substituted organic ligand, and a heteroatom ligand, and to a method for selectively preparing 1-hexene or ...
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WO/2017/192225A1 |
This invention relates to a compound represented by the formula: TyLAMXn-2 wherein: A is a substituted or unsubstituted tetrahydro-as-indacenyl group bonded to M; L is substituted or unsubstituted monocyclic or polycyclic arenyl ligand o...
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WO/2017/191054A1 |
The present invention is directed to a process for feeding a polymerisation catalyst into a polymerisation reactor (7), comprising the steps of: (i) maintaining a catalyst slurry comprising a diluent and a solid catalyst component in a c...
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WO/2017/189120A1 |
This invention relates to organoaluminum activators, organoaluminum activator systems, preferably supported, to polymerization catalyst systems containing these activator systems and to polymerization processes utilizing the same. In par...
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WO/2017/188258A1 |
A modified olefin-based polymer which (1) has an intrinsic viscosity [η] of 0.01-2.5 dL/g, (2) shows no melting point (Tm-D) or has a melting point of 0-100°C, (3) has a half-crystallization time of 3 minutes or longer or shows no crys...
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WO/2017/188180A1 |
Provided is a solid catalyst component for olefin polymerization which contains an electron-donating compound other than a phthalic acid ester, wherein, compared to when a phthalic acid ester is used as an electron-donating compound, a s...
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WO/2017/188569A1 |
The present invention relates to a high-density ethylene-based polymer comprising: an ethylene homopolymer; or a copolymer of ethylene and at least one comonomer selected from the group consisting of α-olefins, cyclic olefins and linear...
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WO/2017/188588A1 |
The present invention provides: a meso metallocene catalyst for preparing a polyolefin exhibiting excellent polymer properties while having superior catalytic activity in ethylene and α-olefin polymerization; and a polyolefin prepared u...
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WO/2017/185149A1 |
This invention relates to the use of titanium-based oxopolymers for preparing suitable catalysts for reactions of olefin polymerization and/or olefin and alpha-olefin copolymerization. The instant invention further discloses the synthesi...
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