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Matches 1 - 50 out of 27,699

Document Document Title
WO/2019/075331A2
Isobutylene copolymer includes repeat units derived from isobutylene and one or more comonomers selected from isoprene, butadiene, cyclopentadiene, dicyclopentadiene, limonene, substituted styrenes, and C4 to CIO dienes other than isopre...  
WO/2019/069328A1
The present invention disclosed a novel heterogeneous catalytic system (precatalyst), process for the preparation and use thereof for the synthesis of highly crystalline, disentangled ultra high molecular weight polyethylene (UHMWPE).  
WO/2019/070329A1
A bimodal polyethylene is provided. The bimodal polyethylene may include a high molecular weight portion having a weight average molecular weight (Mw) of 100,000 g/mol to 1,000,000 g/mol and a low molecular weight portion having a Mw of ...  
WO/2019/067271A1
A method comprising synthesizing a cyclic organic compound via reaction of an unsubstituted or substituted cyclohexene with an unsubstituted or substituted acrylic acid in the presence of phosphoric and/or sulfonic acid reagent to make t...  
WO/2019/067273A1
A method comprising synthesizing a cyclic organic compound via reaction of an unsubstituted or substituted cycloheptene with an unsubstituted or substituted acrylic acid in the presence of phosphoric and/or sulfonic acid reagent to make ...  
WO/2019/064247A1
The present invention relates to: a novel indene-based transition metal compound; a transition metal catalyst composition comprising same and having a high catalytic activity for preparing an ethylene homopolymer or a copolymer of ethyle...  
WO/2019/057595A1
A process is disclosed for the polymerization of olefins in gas phase carried out in a reactor having two interconnected polymerization zones, a first zone (riser) and a second zone (downcomer), wherein the growing polymer particles: a) ...  
WO/2019/048843A2
A process for the polymerisation of olefins is provided, which uses a Group IV transition metal catalyst.  
WO/2019/045878A1
A method for making a polymer, having the steps of (a) polymerizing one or more monomers in the presence of a solvent and a catalyst to form a reaction product; (b) removing an effluent from the reaction product, where the effluent compr...  
WO/2019/039391A1
This polymer thin film is characterized by: containing a methyl pentene polymer (A) which includes a constituent unit represented by general formula (1); by having a thickness of 10 nm to 1000 nm, inclusive; and by having self-supporting...  
WO/2019/038605A1
Provided are a novel transition metal compound based on a cyclopenta[a]naphthalene group, a transition metal catalyst composition having high catalytic activity for preparing an ethylene homopolymer or a copolymer of ethylene and at leas...  
WO/2019/034718A1
A process for the preparation of ethylene homopolymers or copolymers in a facility, the facility comprising a high-pressure tubular reactor and a preheater, wherein the reaction fluid introduced into the reactor at the reactor inlet is h...  
WO/2019/025583A1
A butene-1 polymer composition having MFR values of from 20 to less than 100 g/10 min., measured according to ISO 1133 at 190°C with a load of 2.16 kg, comprising: A) a butene-1 homopolymer or a copolymer of butene-1 with one or more co...  
WO/2019/027565A1
Methods for separating gaseous components, such as unreacted hydrocarbon monomer and/or solvent, from polyolefin solids are provided. The methods include contacting a first stream including polyolefin solids and gaseous unreacted hydroca...  
WO/2019/027566A1
Methods for separating gaseous components, such as unreacted hydrocarbon monomer and/or solvent, from polyolefin solids are provided. The methods include flowing a first stream including polyolefin solids and gaseous unreacted hydrocarbo...  
WO/2019/025582A1
A butene-1 polymer having: a) a Melt Flow Rate value of from 20 to less than 100 g/10 min., measured according to ISO 1133 at 190°C with a load of 2.16 kg; • b) an intrinsic viscosity (IV) measured in tetrahydronaphthalene (THN) at 13...  
WO/2019/025585A1
A butene-1 polymer composition having MFR values of from 100 to 300 g/10 min., measured according to ISO 1133 at 190°C with a load of 2.16 kg, comprising: A) a butene-1 homopolymer or a copolymer of butene-1 with one or more comonomers ...  
WO/2019/027585A1
The present disclosure provides a supported catalyst system and process for use thereof. In particular, the catalyst system includes an unbridged metallocene compound, an additional unbridged metallocene compound having a structure diffe...  
WO/2019/025581A1
A butene-1 polymer having: a) a Melt Flow Rate value of from 100 to 300 g/10 min., measured according to ISO 133 at 190°C with a load of 2.16 kg; b) an intrinsic viscosity (IV) measured in tetrahydronaphthalene (THN) at 135°C equal to ...  
WO/2019/025560A1
A process for preparing an olefin polymer, comprising the steps of forming a particulate olefin polymer in a gas-phase polymerization reactor in the presence of a C3-C5 alkane as polymerization diluent, separating discharged polyolefin p...  
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...  
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...  
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; ...  
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...  
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...  
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 (...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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.  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  

Matches 1 - 50 out of 27,699