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WO/2019/022058A1 |
Provided is a polyethylene composition having the characteristics (A) and (B) outlined below. (A) On an elutriation temperature-cumulative amount elutriated curve obtained by measuring the amount elutriated for each 1°C by temperature r...
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WO/2019/013595A1 |
The present invention relates to a high-density ethylene-based polymer and a pipe using the same, the high-density ethylene-based polymer comprising: an ethylene homopolymer; or a copolymer of ethylene and at least one comonomer selected...
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WO/2019/014005A1 |
A process to form an olefin-based polymer, said process comprising at least the following steps: a) polymerizing a reaction mixture comprising an olefin, in at least one reactor, in a solution polymerization, to form a polymer solution; ...
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WO/2019/013872A1 |
A process comprising combining a polymerization catalyst with propylene at a polymerization temperature to produce polypropylene granules having an MFR1, wherein the temperature of the polypropylene granules is maintained at least at the...
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WO/2019/006542A1 |
A composite UHMWPE material includes a single ply of high tenacity woven UHMWPE fabric having warp fibers in a first direction and weft fibers in a second direction orthogonal to the first direction. The UHMWPE fabric has a first face an...
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WO/2019/004418A1 |
The purpose of the present invention is to provide a propylene-based polymer having high stereoregularity at an unprecedented level, and having high heat resistance and high rigidity. This propylene-based polymer satisfies requirements (...
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WO/2019/003853A1 |
A method for producing a solid catalyst for olefin (co)polymerization includes bringing into contact with each other a magnesium compound, a tetravalent titanium halide compound, an organic compound represented the following general form...
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WO/2019/005812A1 |
A process to form an ethylene-based polymer in a reactor system, said process comprising at least the following steps: a) injecting a first initiator mixture into the tubular reactor at location L along the reactor, b) injecting a compre...
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WO/2019/003852A1 |
A solid catalyst component for olefin polymerization, an olefin polymerization catalyst, and a method for producing an olefin polymer, are disclosed. A solid catalyst component for olefin polymerization includes magnesium, a halogen, tit...
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WO/2018/233999A1 |
The present invention relates to a process for removing polymer material from a gas-solids olefin polymerization reactor wherein the gas-solids olefin polymerization reactor is connected to the top part of an outlet vessel via a feed pip...
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WO/2018/234176A1 |
An olefin polymerisation method and arrangement comprising polymerising at least one olefin in gas phase in a fluidised bed in the presence of an olefin polymerisation catalyst in a polymerisation reactor having a vertical body; a genera...
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WO/2018/234175A1 |
A method and arrangement of producing polymer comprising polymerizing in reactor having a top zone having a generally conical shape, a middle zone in direct contact with and below said top zone having a generally cylindrical shape, a bot...
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WO/2018/228957A1 |
The invention relates to an expansion joint (1) for joining two adjacent parts of a pipe. The expansion joint (1) comprises an expansion bellows (5), an expanded wall (2) and an inner sleeve assembly (8). The expanded wall (2) comprises ...
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WO/2018/230700A1 |
A dialkoxy magnesium which is characterized in that: the arithmetic mean roughness (Ra) of particle surfaces is 0.5 or less; and the maximum height (Rz) of particle surfaces is 2.0 or less. The present invention is able to provide a dial...
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WO/2018/226787A1 |
The present disclosure provides a method of maintaining a target value of a melt flow index of a polyethylene polymer product being synthesized with a metallocene catalyst in a fluidized bed gas phase reactor. The method includes produci...
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WO/2018/222310A1 |
A polypropylene comprising within a range from 0.1 wt% to 4 wt% ethylene and/or C4 to C12 a-olefin derived units, one or more clarifiers, or both; wherein the polypropylene has a flexural modulus of at least 200 kpsi (0.05 in/min ASTM D7...
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WO/2018/219845A1 |
The invention relates to a process for producing a blend of a thermoplastic starch and a polyolefin using a first extruder comprising successive zones comprising a first zone, a second zone, a third zone and a fourth zone and a second ex...
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WO/2018/220486A1 |
Disclosed are methods and conditions for manufacturing a polyethylene polymer or copolymer in a liquid/liquid biphasic non-adiabatic reaction, and the compositions and articles made therefrom.
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WO/2018/217122A1 |
The invention relates to inorganic and polymer chemistry, and more specifically to the transport of oil and petroleum products via pipelines. A method for producing a reagent to decrease hydrodynamic flow resistance of liquid hydrocarbon...
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WO/2018/210712A1 |
Process for manufacturing a polyethylene homo-or copolymer by conducting polymerization of ethylene, optionally in combination with one or more co- monomers, at a pressure in the range 500-5000 bar, wherein bis(n-butanoyl) peroxide is us...
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WO/2018/208377A1 |
The present disclosure provides assemblies for producing linear alpha olefins and methods for producing linear alpha olefins. In at least one embodiment, a method for producing a linear alpha olefin includes providing an olefin, a cataly...
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WO/2018/208374A1 |
The present disclosure provides assemblies for producing linear alpha olefins and methods for producing linear alpha olefins. In at least one embodiment, a method for producing a linear alpha olefin includes providing an olefin, a cataly...
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WO/2018/208398A1 |
A composition suitable for a film having a 1% secant flexural modulus (MD or TD) of at least 55,000 psi and a dart drop impact of at least 500 g is provided. The composition comprises a broad molecular weight distribution polypropylene w...
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WO/2018/208375A1 |
The present disclosure provides assemblies for producing linear alpha olefins and methods for producing linear alpha olefins. In at least one embodiment, a method for forming a linear alpha olefin, includes providing an olefin, a catalys...
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WO/2018/208376A1 |
The present disclosure provides assemblies for producing linear alpha olefins and methods for producing linear alpha olefins. In at least one embodiment, a method for producing a linear alpha olefin includes providing an olefin, a cataly...
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WO/2018/207642A1 |
Provided is a catalyst for olefin polymerization which, even when used in homopolymerization at high temperatures, shows excellent hydrogen activity and can highly efficiently produce polymers having high stereoregularity and a high MFR ...
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WO/2018/204143A1 |
A process is described for introducing a catalyst into a polymerization zone by detecting one or a combination of (i) a change in a concentration of the catalyst in a catalyst feed stream upstream of the polymerization zone, (ii) a chang...
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WO/2018/199494A1 |
The present invention relates to a multi-degradable polyolefin-based resin, wherein, without using high-cost biodegradable raw materials such as starches or aliphatic polyester-based materials and the like, a small amount of additives, s...
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WO/2018/193894A1 |
A polypropylene-based resin composition comprising: a polypropylene-based resin (A) which has a melting endotherm (ΔH-D) of 0-40 J/g and which has no melting point (Tm-D) or has a melting point (Tm-D) of 0°C or higher but lower than 90...
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WO/2018/193327A1 |
This disclosure relates to a continuous solution three reactor polymerization process. Process solvent, ethylene, optional comonomers, optional hydrogen and a single site catalyst system are injected into a first and second reactor confi...
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WO/2018/193392A1 |
Barrier adhesive compositions include at least one polyisobutylene-containing polymer and a copolymeric additive that is a polyisobutylene-polysiloxane copolymer. The polyisobutylene-polysiloxane copolymers are prepared by the reaction o...
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WO/2018/190144A1 |
The present invention addresses the problem of clarifying the polymerization control effect of (meth)acrylic acid esters which heightens the living property and, by using the same, suppressing secondary reactions and providing a method f...
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WO/2018/185176A1 |
The invention relates to a metallocene complex according to formula (I), wherein R1 is selected from C2-C10 alkyl, preferably C3-C10 alkyl, C6-C20 aryl, C7-C20 aralkyl groups, wherein R2 is selected from H, C1-C10 alkyl, and wherein R3, ...
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WO/2018/179619A1 |
The present invention provides a 4-methyl-1-pentene polymer (X) which comprises 90 to 100 mol% of constitutional units derived from 4-methyl-1-pentene and 0 to 10 mol% of constitutional units derived from at least one olefin selected fro...
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WO/2018/174193A1 |
Provided is a fluororesin laminated article in which a layer of a fluorine-containing copolymer and a layer of a propylene-based polymer having exceptional heat resistance are solidly bonded. This laminated article comprises: a layer con...
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WO/2018/175073A1 |
Methods for preparing a catalyst system that includes contacting at least one aromatic hydrocarbon, at least one activator, at least one catalyst having a Group 3 through Group 12 metal atom or lanthanide metal atom, and at least one cat...
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WO/2018/167305A1 |
The present invention relates to a process for preparing a procatalyst for polymerization of olefins, said process comprising contacting a magnesium-containing support with a halogen-containing titanium compound, an internal electron don...
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WO/2018/161854A1 |
Provided in the present invention is a solid catalyst component for use in olefin polymerisation, comprising Mg, Ti, a halogen, and at least one electron donor, the electron donor being a 2-substituted amino-phenyl ester compound selecte...
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WO/2018/164161A1 |
Provided is a propylene-based polymer which satisfies (1)-(4) below: (1) the intrinsic viscosity [η] measured at 135˚C in a tetralin solvent is 0.3-5.0 dL/g; (2) the melting endotherm (ΔH-D), which is obtained from a melting endotherm...
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WO/2018/160276A1 |
Catalyst systems with single site transition metal complexes (such as quinolinyldiamide transition metal complexes), an activator, and a metal hydrocarbenyl transfer agent (preferably an aluminum vinyl-transfer agent) are disclosed for u...
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WO/2018/160277A1 |
This invention relates to the use of pyridyldiamido and/or quinolinyldiamido transition metal complexes and catalyst systems with an activator and a metal hydrocarbenyl chain transfer agent, such as an aluminum vinyl-transfer agent (A VT...
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WO/2018/158966A1 |
Provided is a metallocene compound represented by general formula (1). (1) (The reference signs in general formula (1) are as stipulated in the description.)
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WO/2018/160278A1 |
This invention relates to the use of pyridyldiamido and/or quinolinyldiamido transition metal complexes and catalyst systems with an activator and a metal hydrocarbenyl chain transfer agent, such as an aluminum vinyl-transfer agent (A VT...
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WO/2018/155179A1 |
The present invention addresses the problem of providing a molded article which is formed by disposing a plurality of parts in contact with each other, said parts containing 4-methyl-1-pentene-based polymers, and has high part-to-part ad...
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WO/2018/151790A1 |
This invention relates to hafnium metallocene compounds having a group substituted at the 3 position of at least one cyclopentadienyl ring represented by the formula -R20-SiR'3 or -R20-CR'3 where R20 is a C1 to C4 hydrocarbyl and R' is a...
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WO/2018/147931A1 |
A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst is provided. The process includes preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce...
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WO/2018/143191A1 |
The present invention provides an ethylene polymer, wherein the viscosity-average molecular weight as determined according to specific conditions for measuring the isothermal crystallization time is 100 × 104 to 1,000 × 104 (inclusive)...
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WO/2018/144139A1 |
Methods for reducing gels and/or dome sheeting in gas phase polymerization processes and their resulting products are provided. The polymerization processes include polymerizing ethylene and one or more optional comonomers in a fluidized...
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WO/2018/134007A1 |
A fluid is fed into a polymer bed of a fluidized bed gas phase polymerization reactor by introducing it into the polymer bed through a distributor protruding into the fluidized bed zone of the reactor and terminating with a discharge end...
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WO/2018/132247A2 |
The present disclosure relates to bridged metallocene catalysts that include at least one indenyl ligand substituted at the 2-position with a C3-C10 branched alkyl, such as isopropyl. Catalyst systems including the catalysts, polymerizat...
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