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Matches 201 - 250 out of 28,756

Document Document Title
WO/2019/238428A1
The present invention relates to a process for polymerizing at least one olefin in gas phase in a fluidized bed in a polymerization reactor having a top zone of a generally conical shape as such that the equivalent cross-sectional diamet...  
WO/2019/241063A1
Propylene-ethylene copolymer compositions and production methods are provided. The copolymer compositions can be particularly advantageous for use in hot fill packaging of foodstuffs. The propylene-ethylene copolymers can be produced usi...  
WO/2019/234637A1
Provided are an ethylene polymer mixture, a method of preparing the same, and a molded article using the same. More specifically, an ethylene polymer mixture in which two ethylene polymers having different densities are mixed, a method o...  
WO/2019/234256A1
The disclosure relates to a method for producing a propylene copolymer, comprising extruding a molten propylene copolymer and a composition essentially comprising at least one peroxydicarbonate and at least one organic peroxide. Extrudin...  
WO/2019/234492A1
The present invention relates to novel polymer compositions and their use in polyolefin resins including a polyolefin, a polymer containing an oxidizable component, a transition metal compound or mixture of transition metal compounds, an...  
WO/2019/223683A1
The present invention relates to a catalyst component for olefin polymerization and a catalyst including same. The catalyst component includes magnesium, titanium, a halogen, an internal electron donor compound, and a precipitation aid. ...  
WO/2019/226271A1
Disclosed are hot-melt, curl-free methods, structures, and compositions, which in flexible packaging applications, reduce mineral-oil, hydrocarbon migration into packaged food. One embodiment provides an optionally oriented base film hav...  
WO/2019/218868A1
The present disclosure provides a compound, a complex, a preparation method thereof, and a use thereof. The compound is represented by the following structural formula, in which R1 to R10 are the same or different and are each independen...  
WO/2019/215120A1
The present invention relates to a process for producing a propylene polymer, such as a propylene homopolymer, a propylene-ethylene random copolymer or a heterophasic propylene copolymer using a specific class of metallocene complexes in...  
WO/2019/214975A1
The present invention relates to a process for the production of modified polyethylene comprising adding a free radical initiator composition and a polar monomer in extrusion of polyethylene materials with a melt mass flow rate (MFR) as ...  
WO/2019/210029A1
The present disclosure provides borate activators comprising cations having linear alkyl groups, catalyst systems comprising, and processes for polymerizing olefins using such activators. Specifically, the present disclosure provides pol...  
WO/2019/202800A1
Provided are olefin polymers having excellent lightness of weight and excellent moldability together with high rigidity and excellent flexural elasticity of the molded product. The olefin polymers are characterized by having: a propylene...  
WO/2019/195111A1
Methods of post-polymerization modification of a polymer are provided herein. The present methods comprise the step of reacting a polymer with at least one nucleophile in a nucleophilic substitution reaction performed without a solvent t...  
WO/2019/191440A1
Embodiments are directed to catalyst systems comprising: a procatalyst; and a co-catalyst dissolved in a non-halogenated aprotic hydrocarbon solvent, the co-catalyst comprising: a non-coordinating borate dianion having the formula: (III)...  
WO/2019/191539A1
Embodiments are directed to catalyst systems comprising: a procatalyst; and a co-catalyst, the co-catalyst comprising: a non-coordinating borate anion having the formula [B(C6F5)4]1- and a cation according to formula (I).  
WO/2019/191078A1
A process to obtain a real-time measurement of a monomer concentration and/or a real-time measurement of a comonomer concentration in at least one process stream of a solution polymerization to form a polymer, said process comprising ana...  
WO/2019/190848A1
Embodiments of the present disclosure are directed towards methods of adjusting melt index and/or density utilizing a metallocene complex represented by Formula (I): wherein each n-Pr is n-propyl, and each X is independently CH3, CI, Br,...  
WO/2019/190898A1
A bimodal polyethylene composition, products made therefrom, methods of making and using same, and articles, including bottle caps and closures, containing same.  
WO/2019/186069A1
Rubber patch for attaching an electronic member to the surface of a tyre, comprising a running surface and a retention wall which is connected to the running surface and which defines an internal volume which is capable of receiving the ...  
WO/2019/190841A1
Embodiments of the present disclosure are directed towards methods for controlling a polymerization reaction including determining an instantaneous density model for a gas-phase polymerization, and utilizing the instantaneous density mod...  
WO/2019/182383A1
The present invention provides a method for manufacturing a transition metal complex, the method comprising the steps of: preparing a dispersion containing a salt or alkoxide of a transition metal and a coordinating solvent; and reacting...  
WO/2019/182993A1
The present disclosure is directed to a silicon-terminated telechelic polyolefin composition comprising a compound of formula (I). Embodiments related to a process for preparing the silicon-terminated telechelic polyolefin composition co...  
WO/2019/182949A1
A propylene-α-olefin-diene (PEDM) terpolymer may comprise 75 to 95 wt% propylene, 5 to 20 wt% α-olefin, and 0.5 to 5 wt% diene, said wt% based on the weight of the PEDM terpolymer. The propylene-α-olefin-diene terpolymer may be blende...  
WO/2019/182986A1
A process to functionalized organo-metal compounds with silyl-based electrophiles. The process includes combining an organo-metal compound, a silyl-based functionalization agent, and an optional solvent. Functionalized silanes and silyl-...  
WO/2019/182983A1
The present disclosure is directed to a silicon-terminated organo-metal composition comprising a compound of formula (I). Embodiments relate to a process for preparing the silicon-terminated organo-metal composition comprising the compou...  
WO/2019/182992A1
A process to functionalize organo-zinc compounds with halosilane electrophiles employs a basic additive. The process includes combining the organo-zinc compound, a halosilanes, and a nitrogen containing heterocycle as the basic additive....  
WO/2019/092378A3
The invention relates to the use of at least one hydrogen peroxide in solid form to modify the rheology of a thermoplastic polymer when melted, specifically a polyolefin and particularly a polymer comprising at least one unit from propyl...  
WO/2019/177110A1
The present invention addresses the problem of providing a novel olefin-based molded product useful for various applications. Provided is an olefin-based molded product including a polymer having a structural unit of at least one polariz...  
WO/2019/173030A1
Methods of preparing a polymerization reactor for startup including the step of providing an alkyl solution to the polymerization reactor to remove moisture from the seed bed followed by additional step(s) are provided herein.  
WO/2019/168729A1
A method of determining multimodal polyethylene quality comprising the steps of (a) providing a multimodal polyethylene resin sample; (b) determining, in any sequence, the following: that the multimodal polyethylene resin sample has a me...  
WO/2019/162456A1
The invention provides a process for separating hydrogen from a gaseous feed stream in a polymerisation process, comprising the steps i) polymerising an olefin monomer and optionally at least one olefin comonomer, in the presence of a so...  
WO/2019/162445A1
The invention provides a process for separating hydrogen from a gaseous feed stream in a polymerisation process, comprising the steps i) polymerising an olefin monomer and optionally at least one olefin comonomer in the presence of a sol...  
WO/2019/162448A1
The invention provides process for separating hydrogen from a fluid feed stream in a polymerisation process, comprising the steps i) polymerising an olefin monomer and optionally at least one olefin comonomer in the presence of a solvent...  
WO/2019/156482A1
The present invention relates to a method for preparing a supported hybrid metallocene catalyst and, more particularly, to a method in which a first metallocene compound is supported, a promoter is supported by means of split addition, i...  
WO/2019/156802A1
Methods and systems for solution polymerization. The method can include forming a first mixture stream consisting essentially of at least one catalyst and a process solvent, and forming a second mixture stream consisting essentially of a...  
WO/2019/154756A1
A gas-phase polymerization reactor for the gas-phase polymerization of olefins comprising at least one polymerization zone which is equipped with a recycle line for withdrawing reaction gas from the reactor, leading the reaction gas thro...  
WO/2019/157162A1
This invention relates to a supported catalyst system and process for use thereof. In particular, the catalyst system includes a benzindenyl transition metal complex, a support material and an activator. The catalyst system may be used f...  
WO/2019/157002A1
Low molecular weight, highly branched polyolefins are provided. Also provided are catalyst-mediated methods of making the low molecular weight, highly branched polyolefins and a catalyst system for carrying out the methods. The catalyst ...  
WO/2019/151483A1
Provided is a method for manufacturing alkoxy magnesium by intermittently adding metal magnesium a plurality of times to an alcohol in a reaction system, wherein: among the second and subsequent additions of metal magnesium to the reacti...  
WO/2019/103555A3
Provided are a polypropylene resin composition for injection foaming and a molded article manufactured therefrom, wherein the polypropylene resin composition has excellent lightweightness due to foaming and excellent mechanical propertie...  
WO/2019/129502A1
A metal complex of the formula (1) TCyLMZp (1), wherein M is a group 4 metal, Z is an anionic ligand, p is number of 1 to 2, preferably 2, TCy is a thiophene fused cyclopentadienyl-type ligand of the formula (2).  
WO/2019/129650A1
The present invention relates to a process for producing of solid particulate olefin polymerisation catalyst or catalyst carrier comprising forming a solution of the catalyst or a catalyst carrier in a solvent, subjecting the solution in...  
WO/2019/132450A1
The present invention relates to a novel supported catalyst containing a metallocene compound, the catalyst having excellent polymerization activity, and to a method for preparing polypropylene by polymerizing propylene in the presence o...  
WO/2019/133705A1
The present disclosure relates to dual-headed organoaluminum compositions having the formula (I) and processes to prepare the same. In at least one aspect, the compositions having the formula (I) may be used during olefin polymerization.  
WO/2019/132346A1
The present invention relates to a method for preparing a supported metallocene catalyst, and a method for preparing a polypropylene by using the catalyst prepared thereby. According to the present invention, provided is a supported meta...  
WO/2019/132687A1
A metal complex of the formula (1) TCyLMXp (1), wherein M is a group 4 metal Z is an anionic ligand, p is number of 1 to 2, preferably 2, TCy is a thiophene fused cyclopentadienyl-type ligand of the formula (2) wherein R1 and R2 being...  
WO/2019/122016A1
A process for the preparation of a solid olefin polymerisation catalyst or a solid olefin polymerisation catalyst component comprising the steps of: (a)forming a liquid/liquid emulsion of (i) a first organic liquid comprising at least on...  
WO/2019/124021A1
A method for producing a solid catalyst component includes bringing a magnesium compound, a titanium halide compound, and one or more internal electron donor compounds into contact with each other to effect a reaction; washing the result...  
WO/2019/123028A1
The present invention provides a metal-ligand complex, a catalyst composition comprising the same for ethylene-based polymerization, and a method for preparing an ethylene-based polymer by using same. The metal-ligand complex of the pres...  
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.  

Matches 201 - 250 out of 28,756