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Matches 1 - 50 out of 27,789

Document Document Title
WO/2019/118755A1
This disclosure relates to a high molecular weight polypropylene-based composition with high nucleation density and short crystallization half time. The composition may contain up to about 2 wt% ethylene.  
WO/2019/115450A1
Purification of a gas stream for polyolefin synthesis. Preferred gas is ethylene or propylene. Impurities are withdrawn when passing through an inorganic adsorbent, and then alkynes are selectively hydrogenated over a dedicated catalyst ...  
WO/2018/208398A8
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/2019/108407A1
The present disclosure relates to asymmetric ansa-metallocene catalyst compounds that include at least one indenyl ligand substituted at the 3-position with a C3-C40 α-branched alkyl, such as 1-methylethyl, 1-methylpropyl, 1-methylbutyl...  
WO/2019/105667A1
The present invention relates to a method of producing a magnesium compound represented by the following formula: Mg(OR1)2-n(Modifier)n wherein R1 is CmH2m+1, where in m is an integer from 2 to 10, and n is o - 2 wherein the method compr...  
WO/2019/075331A3
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/2019/103185A1
An embodiment of the present invention provides a method for preparing functionalized polyethylene wax comprising the steps of: (a) stirring and pyrolyzing polyethylene, which has a melting point of 110℃ or lower and a molecular weight...  
WO/2019/103184A1
An embodiment of the present invention provides a method for preparing functionalized polyethylene wax comprising the steps of: (a) stirring and pyrolyzing polyethylene, which has a melting point of 110℃ or lower and a molecular weight...  
WO/2019/103336A1
Provided are an olefin-based polymer and a film. The olefin-based polymer has a melt tension (MT) of 80 mN or more and a velocity at break of 200 mm/s or more.  
WO/2019/103182A1
An embodiment of the present invention provides a method for preparing polyethylene wax comprising the steps of: (a) stirring and pyrolyzing polyethylene, which has a melting point of 110℃ or lower and a molecular weight distribution (...  
WO/2019/099138A1
Methods of online cleaning of heat exchangers at elevated temperatures are provided. Cleaning of the heat exchanger is achieved through an increasing heat exchanger effluent temperature of a polymer solution together with operating under...  
WO/2019/099291A1
Methods for synthesizing a water-soluble titanium-silicon complex by partial hydrolysis are disclosed herein. The titanium-silicon complex can be utilized to produce titanated solid oxide supports and titanated chromium supported catalys...  
WO/2019/099292A1
A method of preparing a catalyst comprising a) contacting a titanium- containing compound, a solvating agent comprising an alpha, beta- unsaturated organic compound with a carbonyl or carboxyl group, and a solvent to form a solution; b) ...  
WO/2019/099134A1
In a gas phase fluidized bed polymerization process for the production of polyolefin polymers, such as polyethylene polymers or polypropylene polymers, loss of ethylene or propylene accompanying inert gas purging is reduced by passing an...  
WO/2019/096557A1
The present invention relates to a method for improving the cooling capacity of a gas solids olefin polymerization reactor by splitting the fluidization gas and returning part of the fluidization gas to the reactor into the bottom zone o...  
WO/2019/099116A1
The present disclosure provides catalyst systems having a bridged metallocene compound and a transition metal pyridyldiamide compound for use in alkene polymerization to produce multimodal polyolefins, such as multimodal ethylene, propyl...  
WO/2019/096556A1
The present invention relates to a process for polymerizing olefin monomer(s) in a gas solids olefin polymerization reactor wherein the fluidization gas is split and returned to the reactor into the bottom zone of the reactor and directl...  
WO/2019/099250A1
This invention relates to catalyst systems comprising a catalyst compound having a bridged group 4 metal metallocene (where the bridge preferably contains an (Me2Si)2 group, an activator, and a support material. In some embodiments, the ...  
WO/2019/093789A1
The present invention relates to a homopolypropylene resin for a non-woven fabric, and can produce a high-strength non-woven fabric, which is softer than an existing product and does not tear easily due to high toughness, by optimizing t...  
WO/2019/094347A1
A process of preparing a solid catalyst component for the production of polypropylene includes a) dissolving a halide-containing magnesium compound in a mixture, the mixture including an epoxy compound, an organic phosphorus compound, an...  
WO/2019/093393A1
Provided are: an olefin-based resin composition that enables production of a molded article where coloring is suppressed and excellent transparency is exhibited; a manufacturing method for such a resin composition; and a molded article o...  
WO/2019/090883A1
A method for preparing polypropylene or a propylene-ethylene copolymer, comprising: (1) subjecting a liquid phase propylene together with a polymerization catalyst to a prepolymerization of propylene, into a feedstock slurry containing a...  
WO/2019/093364A1
The present invention pertains to a catalyst for olefin polymerization that includes a metal complex indicated by general formula (C1) and a production method that uses the metal complex as a polymerization catalyst and produces: a copol...  
WO/2019/094216A1
A process of preparing a solid catalyst component for the production of polypropylene includes a) dissolving a halide-containing magnesium compound in a mixture, the mixture including an epoxy compound, an organic phosphorus compound, an...  
WO/2019/093630A1
Disclosed is a method using a metallocene catalyst system so as to control the polymer structure of a diene-modified polypropylene through process simplification, thereby being capable of preparing a hyperbranched polypropylene resin hav...  
WO/2019/090882A1
Disclosed is a method for the homopolymerization and the random copolymerization of propylene, comprising: (1) subjecting a liquid phase propylene comprising a polymerization catalyst to a prepolymerization of propylene, to obtain a feed...  
WO/2019/089111A1
A process of polymerizing olefins comprising combining propylene with a polymerization catalyst, hydrogen, and at least one external electron donor, such as at least one amino-silane donor, to form polypropylene in a first polymerization...  
WO/2019/090068A1
The invention relates to treatment of waste with one or more microorganisms for the purposes of, including but not limited to, degrading waste, bioremediation of waste, enhancing waste stabilization, reducing contaminants in waste, reduc...  
WO/2019/086987A1
This invention relates to a solution polymerization process that allows two different types of polyethylene to be produced at the same time. The different polyethylenes may have substantially different densities.  
WO/2019/082903A1
The present invention addresses the problem of providing a resin composition which not only is excellent in terms of binder performances, e.g., adhesiveness, but also retains a satisfactory solution state even when stored over a long per...  
WO/2019/048843A3
A process for the polymerisation of olefins is provided, which uses a Group IV transition metal catalyst.  
WO/2019/078561A1
The present invention provides a polyethylene resin production method that is utilized for producing a polyethylene resin for a protective film of a display or the like, wherein gel or fisheye formation are significantly reduced by contr...  
WO/2019/079068A1
An improved method of characterizing the PSD of particles.  
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 ...  

Matches 1 - 50 out of 27,789