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Matches 1 - 50 out of 15,198

Document Document Title
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/2019/099577A1
Polymerization processes to produce polyolefin polymers, for example, polyethylene polymers, from catalyst systems comprising one or more olefin polymerization catalysts and at least one activator are provided. The polyolefin polymers ma...  
WO/2019/067280A4
Embodiments are directed to a catalyst system comprising metal ligand complexes and processes for polyolefin polymerization using the metal ligand complex having the following structure : where X is selected from the group consisting of ...  
WO/2019/067274A4
Embodiments are directed to a catalyst system comprising metal ligand complexes and processes for polyolefin polymerization using the metal ligand complex having the following structure: where each X is selected from the group consisting...  
WO/2019/098703A1
The present invention relates to a method for preparing an ethylene-based elastic copolymer and, more specifically, to a method for preparing an ethylene-based elastic copolymer by using a catalyst composition for preparing an ethylene-b...  
WO/2019/099117A1
The present disclosure provides iron-containing catalyst compounds having a carbene ligand. Catalyst compounds of the present disclosure can be asymmetric, having an electron donating side of the catalyst and an electron deficient side o...  
WO/2019/099589A1
Polymerization processes to produce polyolefin polymers, for example, polyethylene polymers, from catalyst systems comprising one or more olefin polymerization catalysts and at least one activator are provided. The polyolefin polymers ma...  
WO/2019/097853A1
The present invention addresses the problem of providing a copolymer containing at least an acyclic non-conjugated olefin unit and a conjugated diene unit, and having a high elastic modulus. This copolymer contains at least an acyclic no...  
WO/2019/099587A2
Polymerization processes to produce polyolefin polymers, for example, polyethylene polymers, from catalyst systems comprising one or more olefin polymerization catalysts and at least one activator are provided. The polyolefin polymers ma...  
WO/2019/093433A1
Provided is an ethylene/tetrafluoroethylene copolymer which has excellent melt processability and excellent heat resistance. The present invention is an ethylene/tetrafluoroethylene copolymer which is characterized by satisfying formula ...  
WO/2019/094132A1
Polyethylene compositions including at least 65 wt% ethylene derived units, based upon the total weight of the polyethylene composition, are provided.  
WO/2019/094942A1
The present disclosure is generally directed to polyolefin polymers, such as polypropylene homopolymers, and propylene-ethylene copolymers that have improved flow properties. In one embodiment, the polymers can be produced using a solid ...  
WO/2019/092523A1
This disclosure relates to an improved continuous solution polymerization process wherein production rate is increased. Process solvent, ethylene, optional comonomers, optional hydrogen and a bridged metallocene catalyst formulation are ...  
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/2019/090884A1
A method for preparing an impact polypropylene, comprising: (1) performing propylene prepolymerization of a liquid phase propylene with a polymerization catalyst, to be a feedstock slurry containing a propylene prepolymer, wherein the pr...  
WO/2019/094131A1
Polyethylene compositions including at least 65 wt% ethylene derived units, based upon the total weight of the polyethylene composition, are provided.  
WO/2019/092524A1
This disclosure relates to ethylene interpolymer compositions and films prepared therefrom. Specifically: ethylene interpolymer products having: a dimensionless Long Chain Branching Factor, LCBF, greater than or equal to 0.001; a residua...  
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/2019/091615A1
The invention relates to a process for the preparation of a gas barrier film, comprising 1) providing an olefin copolymer comprising: (i) recurring units A derived from an olefin and (ii) recurring units B derived from a compound accordi...  
WO/2019/092525A1
This disclosure relates to an improved solution polymerization process wherein the molecular weight of an ethylene interpolymer product can be increased relative to a comparative process; or at constant ethylene interpolymer molecular we...  
WO/2019/089750A1
A composition comprising an ethylene/CO interpolymer, formed from a high pressure, free-radical polymerization, and wherein the ethylene/CO interpolymer has the following properties: a) a CO content from "greater than 0" weight percent t...  
WO/2019/086300A1
The present invention relates to multi reactor configurations for producing polypropylene copolymers and to processes for producing polypropylene copolymers. The reactor configuration for the production of propylene copolymers comprises ...  
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/2019/089715A1
Disclosed are catalyst systems comprising the reaction product of at least the following A) a procatalyst; and B) at least one cocatalyst structure selected from the following i) through iii), i) at least one cocatalyst comprising an ani...  
WO/2019/088664A2
The present invention relates to a method for preparation of an ethylene vinylacetate copolymer wherein a polymerization condition is controlled with the aid of an autoclave reactor to improve mechanical strength of the copolymer.  
WO/2019/089895A1
A thermoplastic elastomer compound includes polyolefin elastomer, high softening point tackifier, and, optionally, styrenic block copolymer. When styrenic block copolymer is present, the weight ratio of polyolefin elastomer to styrenic b...  
WO/2019/089153A1
The present disclosure provides a supported catalyst system and process for use thereof. In particular, the catalyst system includes four different catalysts, a support material and an activator. The catalyst system may be used for prepa...  
WO/2019/083609A1
Polyethylene compositions including at least 65 wt% ethylene derived units, based upon the total weight of the polyethylene composition, are provided.  
WO/2019/083608A1
Catalyst systems including more than one metallocene catalysts and processes for using the same are provided to produce poly olefin polymers such as polyethylene polymers.  
WO/2019/083715A1
A method of selectively transitioning a polymerization process making an ethylene/alpha-olefin copolymer in such a way that melt elasticity of the copolymer is substantially changed without changing comonomer and without substantially ch...  
WO/2019/083709A1
The present disclosure provides novel unbridged group 4 indacenyl-containing metallocene compounds. The catalyst system may be used for olefin polymerization processes.  
WO/2019/083151A1
The present invention relates to an ethylene-based polymer using a supported hybrid metallocene catalyst, and a pipe using the same and, more specifically, to a pipe using a high-density ethylene-based polymer, the pipe having better swe...  
WO/2019/046085A4
A bimodal polyethylene composition made with a bimodal catalyst system, wherein the bimodal polyethylene composition has from greater than 0 to 14 weight percent of polyethylene polymers having a weight-average molecular weight of from g...  
WO/2019/083716A1
An ethylene/alpha-olefin copolymer that can be synthesized in a fluidized-bed, gas phase polymerization reactor and made into a blown film. The ethylene/alpha-olefin copolymer is characterized by a bubble stability-effective combination ...  
WO/2019/078083A1
This multi-copolymer contains a non-conjugated polyene unit, a non-conjugated olefin unit, and an aromatic vinyl unit, the aromatic vinyl unit content being at least 5 mass% and less than 30 mass%. Provided are a cross-linked rubber comp...  
WO/2019/077236A1
The present invention relates to a block polymer comprising a first block and a second block, the first block having cis-1,4-isoprene units, the molar content of which is greater than the molar content of the trans-1,4-isoprene units of ...  
WO/2019/075356A2
Non-random 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 ...  
WO/2019/072792A1
The present invention provides a soft multimodal random heterophasic polypropylene composition (m-Raheco) with improved stiffness and impact behaviour while maintaining optical properties. The multimodal random heterophasic polypropylene...  
WO/2019/070889A1
The subject matter described herein relates to methods for polymer xanthylation and the xanthylated polymers produced by such methods. Subsequent replacement of the xanthylate moiety allows facile entry into functionalized polymers.  
WO/2019/070440A1
Disclosed herein are ethylene-based polymers generally characterized by a density from 0.89 to 0.93 g/cm3, a ratio of Mw/Mn from 3 to 6.5, a Mz from 200,000 to 650,000 g/mol, a CY-a parameter at 190°C from 0.2 to 0.4, and a reverse shor...  
WO/2019/067280A1
Embodiments are directed to a catalyst system comprising metal ligand complexes and processes for polyolefin polymerization using the metal ligand complex having the following structure : where X is selected from the group consisting of ...  
WO/2019/067300A1
Embodiments are directed to a catalyst system comprising metal-ligand complexes and processes for polyolefin polymerization using the metal-ligand complex having the following structure, Formula (I), where X is selected from the group co...  
WO/2019/067398A1
Copolymers of one or more halogenated olefins and one or more halogenated co-monomers selected from the group consisting of halogenated alkenyl ethers, halogenated alkenyl esters, and halogenated (meth)acrylates are useful in various end...  
WO/2019/064967A1
Provided is a catalyst for olefin polymerization, which exhibits excellent polymerization activity sustainability during polymerization of α-olefins, and which enables suitable production of an α-olefin (co)polymer that has high tactic...  
WO/2019/066516A1
The present application relates to a method for evaluating long-term durability of a pipe resin, and can provide a method capable of predicting long-term durability of a pipe resin in a short time through simple equation calculation usin...  
WO/2019/067274A1
Embodiments are directed to a catalyst system comprising metal ligand complexes and processes for polyolefin polymerization using the metal ligand complex having the following structure: where each X is selected from the group consisting...  
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/2019/060387A1
Embodiments of thermoformed monolayer or multilayer films are provided, wherein the thermoformed monolayer multilayer films comprise a first composition comprising at least one ethylene-based polymer, wherein the first composition compri...  
WO/2019/052822A1
A propylene ethylene copolymer having: i) xylene soluble fraction at 25 °C ranging from 14 wt% to 27 wt% ii) intrinsic viscosity of the fraction soluble in xylene at 25°C ranging from 1.0 to 2.4 dl/g; iii) melt flow rate, MFR, ranging ...  
WO/2019/048529A1
The invention relates to a process for producing a polypropylene composition by sequential polymerization, said polypropylene composition having low sealing initiation temperature (SIT) and high melting point (Tm), thus providing a broad...  

Matches 1 - 50 out of 15,198