| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 526135000 | With non-metal N, P, O, S, Se, Te, or halogen material other than nitrogen gas | 76 |
| 20090099325 | POLYMERS FUNCTIONALIZED WITH HETEROCYCLIC NITRILE COMPOUNDS - A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer and reacting the reactive polymer with a heterocyclic nitrile compound. | 04-16-2009 |
| 20090105433 | Multi-component catalyst systems and polymerization processes for forming in-situ heterophasic copolymers and/or varying the xylene solubles content of polyolefins - Embodiments of the invention generally include multi-component catalyst systems, polymerization processes and heterophasic copolymers formed by the processes. The multi-component catalyst system generally includes a first catalyst component selected from Ziegler-Natta catalyst systems including a diether internal electron donor and a metallocene catalyst represented by the general formula XCp | 04-23-2009 |
| 20090118448 | METHOD OF PRODUCING POLYMER USING IRON COMPLEX AS CATALYST - The object of the present invention is to provide a method of producing a polymer wherein radical-polymerizable monomers can be polymerized in a quantitative manner in a relatively short time, and a polymer or a block copolymer having at its termini a functional group that can be chemically converted while the polymer or the block copolymer has a high molecular weight can be produced. Furthermore, the object of the present invention is to provide a method of producing a polymer wherein the polymer is re-precipitated in a general solvent by an easy method, and the used iron complexes are recovered in the solvent, thereby recycling the iron complexes. | 05-07-2009 |
| 20090171046 | PROCESS FOR PRODUCING POLYDIENES - A process for preparing a polydiene, the process comprising the step of polymerizing conjugated diene monomer in the presence of a dihydrocarbyl ether, where said step of polymerizing employs a lanthanide-based catalyst system. | 07-02-2009 |
| 20100004413 | BULK POLYMERIZATION PROCESS FOR PRODUCING POLYDIENES - A process for preparing a polydiene, the process comprising the step of polymerizing conjugated diene monomer with a lanthanide-based catalyst system including the combination or reaction product of: (a) a lanthanide compound selected from the group consisting of lanthanide organophosphates, lanthanide organophosphonates, and lanthanide organophosphinates, (b) an alkylating agent, and (c) a chlorine-containing compound, where said step of polymerizing takes place within a polymerization mixture that includes less than 20% by weight of solvent based on the total weight of the polymerization mixture. | 01-07-2010 |
| 20100087608 | METHOD OF PRODUCING VINYL CHLORIDE-BASED POLYMER - A method that is capable of producing a vinyl chloride-based polymer having excellent thermal stability without sacrificing productivity is provided. The method includes polymerizing a vinyl chloride-based monomer in the presence of a vanadium compound (A) represented by formula: V | 04-08-2010 |
| 20100222530 | Procatalyst Composition with Substitute 1,2-Phenylene Aromatic Diester Internal Donor and Method - Disclosed are procatalyst compositions having an internal electron donor which include a substituted phenylene aromatic diester and optionally an electron donor component. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exhibit high activity and produce propylene-based olefins with broad molecular weight distribution. | 09-02-2010 |
| 20110009578 | Use Of A Combination Chain Transfer And Activating Agent To Control Molecular Weight And Optical Density Of Pd Catalyzed Norbornene Polymers - A method of controlling the molecular weight of poly(cyclic) olefin (norbornene-type) polymers and activating the polymerization thereof with a single material is provided. Such method include adding a chain transfer/activating agent to a mixture of monomer(s), catalyst, solvent and an optional cocatalyst and polymerizing the mixture to form a polymer. It is shown that the amount of chain transfer/activating agent in the mixture can serve to control the molecular weight of the resulting polymer, its percent conversion or both, and in some embodiments the optical density of the resulting polymer. | 01-13-2011 |
| 20110046327 | METHOD FOR BULK POLYMERIZATION - A method for polymerizing conjugated diene monomer into polydienes, the method comprising: polymerizing conjugated diene monomer within a liquid-phase polymerization mixture that includes conjugated diene monomer, a lanthanide-based catalyst system, dicyclopentadiene or substituted dicyclopentadiene, and optionally organic solvent, with the proviso that the organic solvent, if present, is less than about 20% by weight based on the total weight of the polymerization mixture. | 02-24-2011 |
| 20110184136 | FIBRES AND NONWOVEN PREPARED FROM POLYPROPYLENE HAVING A LARGE DISPERSITY INDEX - The present invention relates to a process for the production of fibres and filaments with polypropylene having a broad polydispersity index. The present invention also relates to high elongation nonwoven prepared from such fibres and filaments. It further relates to films and laminates prepared from high elongation nonwoven. | 07-28-2011 |
| 20130131293 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of Formula (I) in which R, R | 05-23-2013 |
| 20140058054 | Vapor Phase Preparation of Fluorided Solid Oxides - Methods for the vapor phase preparation of fluorided solid oxide activator-supports, using certain calcining temperatures and fluoriding temperatures, are disclosed. | 02-27-2014 |
| 20140066581 | PROCESS FOR RADICALLY CURING A COMPOSITION - The present invention relates to a process for radically curing a composition comprising a methacrylate containing compound (a1) and a monomer copolymerizable with said methacrylate containing compound in the presence of a 5 transition metal compound (c) and a peroxide, wherein the composition comprises a compound (b) according to formula (1) as monomer copolymerizable with said methacrylate containing compound whereby n=0-3; R | 03-06-2014 |
| 20140275453 | POLYMERIZATION INITIATING SYSTEM AND METHOD TO PRODUCE HIGHLY REACTIVE OLEFIN FUNCTIONAL POLYMERS - A method for producing highly reactive olefin polymers wherein at least 50 mol. % of the polymer chains have terminal double bonds, and a novel polymerization initiating system for accomplishing same. | 09-18-2014 |
| 20140350201 | CONJUGATED DIENE POLYMER AND METHOD FOR PRODUCING SAME - Conjugated diene polymer comprising at least a conjugated diene monomer unit, the conjugated diene polymer has a number-average molecular weight (Mn) in terms of polystyrene of 1,000 to 1,000,000, a ratio (Mw/Mn) of a weight-average molecular weight (Mw) to the number-average molecular weight (Mn) of lower than 2.0 and the polymer bears a halogen atom at a terminal of the polymer chain. Method for producing the conjugated diene polymer comprises subjecting a monomer containing at least a conjugated diene to living radical polymerization using a polymerization initiator comprising a halogenocyclopentadienyl triorganophosphine η | 11-27-2014 |
| 20150025211 | CATALYST SYSTEM FOR THE POLYMERIZATION OF OLEFINS - A catalyst system comprising the product obtained by contacting (a) a solid catalyst component containing Mg, Ti, halogen and at least an electron donor compound selected from phenylene aromatic diesters of a specific formula
| 01-22-2015 |
| 20150141600 | METHOD FOR SYNTHESIZING HOMOPOLYMER N-VINYL BUTYROLACTAM WITH SUPER-LOW MOLECULAR WEIGHT AND SUPER-LOW RESIDUAL MONOMER - The present invention relates to a synthesis method of ultra low molecular weight homopolymerized N-vinyl butyrolactam with ultra low residual monomer content, which comprises: using N-vinyl butyrolactam monomers and water with the mass ratio of 3:17˜8:12, then based on the N-vinyl butyrolactam monomers, using 0.5%˜5.0% by weight of initiators, 0.1%˜5.0% by weight of a catalyst, and 0.1%˜10% by weight of a molecular weight regulator; in the presence of an inert gas, adding the above mentioned raw materials in batches, adjusting the pH of the reaction system to 7.0-8.0 with an activator, reacting at the polymerization temperature of 60-85° C.; finally adding a peroxide and keeping the temperature for 2 hours, to obtain an aqueous solution of ultra low molecular weight homopolymerized N-vinyl butyrolactam, drying the aqueous solution to obtain a powdery ultra low molecular weight homopolymerized N-vinyl butyrolactam with ultra low residual monomer content, whose K value is 12-17, whose molecular weight is 2000-15000, and whose residual monomer content is less than 10 ppm, so the present invention is designed skillfully and simple in preparation, the residual monomer content of the ultra low molecular weight homopolymerized N-vinyl butyrolactam with ultra low residual monomer content prepared is less than 10 ppm, and the K value is 12-17, therefore the present invention is suitable for large-scale popularization. | 05-21-2015 |
| 20160032026 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - A solid catalyst component for the (co)polymerization of olefins CH | 02-04-2016 |
| 526136000 | Contains non-transition elemental metal, hydride thereof, or carbon to non transition metal atom bond | 21 |
| 20080255327 | NICKEL-BASED CATALYST COMPOSITION - In general the present invention provides a process for forming conjugated diene polymer, the process comprising the step of polymerizing conjugated diene monomer in the presence of a catalytically effective amount of a catalyst composition formed by combining (a) a nickel-containing compound, (b) an alkylating agent, (c) a fluorine-containing compound, (d) a carboxylic acid, and (e) an alcohol. | 10-16-2008 |
| 20110282015 | Catalyst Components for the Polymerization of Olefins and Catalysts Therefrom Obtained - A catalyst component for the polymerization of olefins comprising Mg, Ti and Cl obtained by a process comprising the following steps:
| 11-17-2011 |
| 20130144018 | PROCESS FOR POLYMERIZING A POLYMERIZABLE OLEFIN AND CATALYST THEREFOR - The present invention generally relates to a process that copolymerizes two or more polymerizable olefins, and to cataclyst comprising a metal-ligand complex (precatalyst). The present invention also generally relates to ligands useful for preparing the metal-ligand complex. | 06-06-2013 |
| 526137000 | Non-metal material is inorganic halogen-containing material | 1 |
| 20080214757 | Use of a Highly Viscous Largely Amorphous Polyolefin For the Production of a Film - A one-layer or multilayer sheet having good layer adhesion and good transparency is produced using a polyolefin which contains the following monomer units:
| 09-04-2008 |
| 526138000 | Non-metal material is inorganic oxygen-containing material | 1 |
| 20100273963 | PROCESS FOR PRODUCING POLYDIENES - A process for preparing a polydiene, the process comprising the step of polymerizing conjugated diene monomer in the presence of a dihydrocarbyl ether, where said step of polymerizing employs a lanthanide-based catalyst system. | 10-28-2010 |
| 526139000 | Non-metal material is organic phosphorus-containing compound | 1 |
| 20110086991 | Oligomerisation of olefinic compounds in an aliphatic medium - This invention relates to a process for producing an oligomeric product by the oligomerisation of at least one olefinic compound by contacting the at least one olefinic compound with an oligomerisation catalyst in an aliphatic liquid medium at a reaction temperature of at least 50° C. The catalyst comprises the combination of a source of a transition metal; and a ligating compound of the formula (R | 04-14-2011 |
| 526140000 | Non-metal material is organic sulfur-containing compound | 2 |
| 20120259080 | REACTOR CONTINUITY - A supported catalyst system comprising a phosphinimine ligand containing catalyst on an alumina support treated with a metal salt has improved reactor continuity in a dispersed phase reaction in terms of initial activation and subsequent deactivation. The resulting catalyst has a lower consumption of ethylene during initiation and a lower rate of deactivation. Preferably the catalyst is used with an antistatic agent. | 10-11-2012 |
| 20150031845 | Process For Producing Polydienes - A method for producing a polydiene, the method comprising the steps of (i) forming an active catalyst by combining a lanthanide-containing compound, an alkylating agent, and a halogen source in the substantial absence of an organosulfide; and (ii) polymerizing conjugated diene monomer in the presence of the active catalyst and an organosulfide. | 01-29-2015 |
| 526141000 | Non-metal material is organic nitrogen-containing compound | 5 |
| 20100216956 | PROCESS AND CATALYST SYSTEM FOR POLYDIENE PRODUCTION - Compositions and polydiene production processes involving catalyst systems comprising at least one lanthanide-containing compound, at least one alkylating agent, at least one halogen source, and at least one N,N-dihydrocarbylhydroxylamine. | 08-26-2010 |
| 20110082268 | Indazole-modified ziegler-natta catalyst system - A modified Ziegler-Natta catalyst system, a method for preparing the catalyst system, and a process for polymerizing an olefin in the presence of the catalyst system are disclosed. The catalyst system comprises a titanium or vanadium compound, an aluminum compound, and an indazole. Improved comonomer incorporation and the ability to regulate molecular weight are achieved in the manufacture of polyolefins. | 04-07-2011 |
| 20110082269 | Nitroso-modified ziegler-natta catalyst system - A modified Ziegler-Natta catalyst system, a method for preparing the catalyst system, and a process for polymerizing an olefin in the presence of the catalyst system are disclosed. The catalyst system comprises a titanium compound, an aluminum compound, and a nitroso compound. Improved polyolefin properties, such as high molecular weight, are obtained. | 04-07-2011 |
| 20110082270 | Pyridazine-modified ziegler-natta catalyst system - A modified Ziegler-Natta catalyst system, a method for preparing the catalyst system, and a process for polymerizing an olefin in the presence of the catalyst system are disclosed. The catalyst system comprises a titanium or vanadium compound, an aluminum compound, and a pyridazine. Improved properties such as increased molecular weight and narrowed molecular weight distribution are obtained. | 04-07-2011 |
| 20120041162 | METHOD FOR PRODUCING OLEFIN POLYMER - [Object] An object of the present invention is to provide a method for producing an olefin polymer, with which an olefin polymer having good particle properties can be produced in high activity, contamination inside the polymerization vessel, such as a vessel wall or an impeller, can be effectively prevented, and a long-term stable operation is achieved. | 02-16-2012 |
| 526142000 | Non-metal material is organic oxygen-containing compound | 6 |
| 20090264607 | USE OF A ZIEGLER-NATTA CATALYST TO MAKE A POLYPROPYLENE HOMPOLYMER OR RANDOM COPOLYMER HAVING A HIGH MELT FLOW RATE - The present invention relates to a process for the production of a high melt flow propylene homopolymer or random copolymer with low odor and low volatiles content, which is suitable for thin-walled injection molding applications, said process comprising the step of polymerizing propylene and one or more optional comonomers in presence of a Ziegler-Natta catalyst comprising a titanium compound having at least one titanium-halogen bond, and a diether compound as internal electron donor, both supported on a magnesium halide in active form, an organoaluminium compound and an optional external donor. | 10-22-2009 |
| 20120108773 | CATALYSTS FOR POLYMERIZATION OF ISOPRENE AND PREPARATIONS AND USES THEREOF - Disclosed are catalyst compositions for isoprene polymerization formed from components comprising (A) at least one titanium halide; (B) at least one organic aluminum compound comprising at least one alkyl aluminum of formula AlR | 05-03-2012 |
| 20140005345 | SOLID CATALYST FOR PROPYLENE POLYMERIZATION AND A METHOD FOR PREPARATION OF POLYPROPYLENE | 01-02-2014 |
| 20140171606 | PROCESS FOR THE MANUFACTURE OF ISOTACTIC POLYPROPYLENE - Slurry polymerization process for the preparation of a polypropylene (PP) having a decaline soluble fraction (DS) of equal or below 2.5 wt.-%, wherein (a) a Ziegler-Natta catalyst (ZN), (b) propylene and optionally ethylene and/or an C | 06-19-2014 |
| 526143000 | Non-metal organic oxygen compound is halogen-containing | 2 |
| 20090143551 | NICKEL-BASED CATALYSTS FOR PREPARING HIGH CIS 1,4-POLYDIENES - A nickel-carbene polymerization catalyst system for preparing high cis polydienes is provided. The catalyst system comprises (a) a nickel N-heterocyclic carbene complex, (b) an organoaluminum compound, (c) a fluorine-containing compound, and (d) optionally, an alcohol. Also provided is a process for producing a polydiene comprising reacting a conjugated diene in the presence of a polymerization catalyst comprising (a) a nickel N-heterocyclic carbene complex, (b) an organoaluminum compound, (c) a fluorine-containing compound, and (d) optionally, an alcohol. | 06-04-2009 |
| 20110224390 | PROCESS FOR PRODUCING COPOLYMER - There are provided (I) a process for producing a copolymer of ethylene, an α-olefin having from 3 to 20 carbon atoms and optionally a polyene, which comprises the step of copolymerizing those monomers in a polymerization reactor by feeding the following components (A), (B), (C1) and (D) to the polymerization reactor:
| 09-15-2011 |
| 526144000 | Non-metal material is organic halogen-containing compound | 2 |
| 20120172553 | Process For Producing Polydienes - A process for preparing a polydiene, the process comprising the step of polymerizing conjugated diene monomer in the presence of a dihydrocarbyl ether, where said step of polymerizing takes place within a polymerization mixture that includes less than 20% by weight of organic solvent based on the total weight of the polymerization mixture, and where said step of polymerizing employs a lanthanide-based catalyst system that includes the combination of or reaction product of ingredients including (a) a lanthanide compound, (b) an aluminoxane, (c) an organoaluminum compound other than an aluminoxane, and (d) a bromine-containing compound selected from the group consisting of elemental bromine, bromine-containing mixed halogens, and organic bromides. | 07-05-2012 |
| 20160108153 | PROCESS FOR PRODUCING POLYDIENES - A method for producing a polydiene, the method comprising of combining a lanthanide compound, an alkylating agent, a halogen source, and optionally conjugated diene monomer to form an active preformed catalyst; independent of step (i), introducing an amine with conjugated diene monomer to be polymerized; independent of step (i), introducing the active preformed catalyst to the conjugated diene monomer to be polymerized to form an active polymerization mixture, where the active polymerization mixture includes less than 10% by weight, based on the total weight of the active polymerization mixture, of a solvent; and allowing the monomer to be polymerized to polymerize in the presence of the amine. | 04-21-2016 |
| 526145000 | Non-metal phosphorus-containing material | 20 |
| 20090023874 | PROCESS FOR PRODUCING RING-OPENING METATHESIS POLYMER - The process of producing a ring-opening metathesis polymer of the present invention is mainly characterized in that a treatment to decrease the amount of oxygen and/or peroxide in at least one kind of polymerization starting material is performed prior to the ring-opening metathesis polymerization reaction of a cyclic olefin performed in the presence of a ruthenium carbene complex (catalyst). As used herein, the “polymerization starting material” refers to various materials used for a ring-opening metathesis polymerization reaction and present in the reaction system, such as ruthenium carbene complex (catalyst) and cyclic olefin (monomer), as well as solvents, chain transfer agents and the like. In addition, the method for a treatment to decrease the amount of oxygen and/or peroxide include a method comprising applying an adsorbent to a polymerization starting material to remove oxygen and/or peroxide by adsorption, a method comprising applying an antioxidant to a polymerization starting material to decompose oxygen or peroxide and the like. | 01-22-2009 |
| 20090062493 | LIGANDS AND CATALYST SYSTEMS THEREOF FOR THE CATALYTIC OLIGOMERIZATION OF OLEFINIC MONOMERS - The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (I); | 03-05-2009 |
| 20090069517 | LIGANDS AND CATALYST SYSTEMS FOR THE OLIGOMERIZATION OF OLEFINIC MONOMERS - The present invention relates to ligands and catalyst systems and a process for the simultaneous trimerization and tetramerization of olefinic monomers using said ligands, the ligands having the general formula (I): | 03-12-2009 |
| 20100081777 | Tetramerization - A new P—N—P ligand is useful in ethylene oligomerizations. In combination with i) a source of chromium and ii) an activator such as methylalumoxane; the ligand of this invention may be used to prepare an oligomer product that contains a mixture of hexenes and octenes. The hexenes and octenes produced with this ligand contain very low levels of internal olefins when produced under preferred reaction conditions. | 04-01-2010 |
| 20100216957 | CATALYST PREPARATION WITH PHOSPHOROUS COMPOUND - The invention refers to a process for preparing a Group 2 metal/transition metal olefin polymerization catalyst component in particulate form having an improved polymerisation properties due to the addition of a phosphorous compound during catalyst component preparation and the use thereof in a process for polymerising olefins. | 08-26-2010 |
| 20100227988 | Catalyst Composition with Phosphorus-Based Donor and Method - Disclosed are catalyst compositions having an external electron donor which includes one or more of the following compositions: a phosphite, a phosphonite, a pyrophosphite, and/or a diphosphazane. Ziegler-Natta catalyst compositions containing the present external electron donor exhibit strong activity and produce propylene-based olefins with high isotacticity and high melt flow rate. | 09-09-2010 |
| 20100311928 | LIGANDS AND CATALYST SYSTEMS THEREOF FOR THE CATALYTIC OLIGOMERIZATION OF OLEFINIC MONOMERS - The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand comprising the product formed by reacting
| 12-09-2010 |
| 20100311929 | LIGANDS AND CATALYST SYSTEMS THEREOF FOR THE CATALYTIC OLIGOMERIZATION OF OLEFINIC MONOMERS - The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (IV); | 12-09-2010 |
| 20100317814 | LIGANDS AND CATALYST SYSTEMS THEREOF FOR THE CATALYTIC OLIGOMERIZATION OF OLEFINIC MONOMERS - The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (II); | 12-16-2010 |
| 20110257350 | Polymer mitigation - Ethylene is selectively oligomerized in a continuously stirred tank reactor (CSTR) that is preferably operated in an isothermal manner using a chromium catalyst. The undesired formation of by-product polyethylene is mitigated by contacting the ethylene with hydrogen prior to adding the ethylene to the reactor and feeding the ethylene and hydrogen via a common feed port. | 10-20-2011 |
| 20110257351 | NOVEL TRIARYLPHOSPHINE OR TRIARYLARSINE COMPOUND, ALPHA-OLEFIN POLYMERIZATION CATALYST USING THE COMPOUND, TERNARY COPOLYMER, AND PRODUCTION PROCESS OF ALPHA-OLEFIN -((METH)ACRYLIC ACID)-BASED COPOLYMER - To provide an industrially useful α-olefin.((meth)acrylic acid)-based olefin copolymer having both a high molecular weight and a high comonomer content, a catalyst component capable of realizing a production of two different kinds of α-olefin.((meth)acrylic acid)-based olefin copolymers, and a production process using the catalyst. An α-olefin.((meth)acrylic acid)-based olefin copolymer is produced by using a metal complex complexed with a ligand represented by the following formula (Y is phosphorus or arsenic) for a catalyst composition. | 10-20-2011 |
| 20110257352 | Amino phosphine - A new P-N-P ligand in which each phosphorus atom is bonded to two ortho-fluorine substituted phenyl groups is useful in ethylene oligomerizations. In combination with i) a source of chromium and ii) an activator such as methalumoxane; the ligand of this invention may be used to prepare an oligomer product that contains a mixture of hexenes and octenes. The hexenes and octenes produced with this ligand contain very low levels of internal olefins when produced under preferred reaction conditions. | 10-20-2011 |
| 20110282016 | Oligomerization - The oligomerization of ethylene using a chromium catalyst having a phosphorus-nitrogen-phosphorus (“P—N—P”) ligand is typically activated with an aluminoxane. The addition of an alkyl zinc, particularly diethyl zinc, has been fund to improve the productivity of certain oligomerization reactions. In particular, the addition of diethyl zinc to an oligomerization reaction that is activated by methylaluminoxane (MAO) improves the productivity of the reaction. | 11-17-2011 |
| 20110319577 | Catalyst Systems for the Catalytic Oligomerization of Olefinic Monomers - The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (IV); | 12-29-2011 |
| 20120178889 | CATALYST SYSTEMS FOR THE OLIGOMERIZATION OF OLEFIN MONOMERS - The present invention relates to catalyst systems and a process for the simultaneous trimerization and tetramerization of olefinic monomers using those ligands. | 07-12-2012 |
| 20130102746 | CONJUGATED POLYMER BASED ON BENZODITHIOPHENE AND THIENOPYRAZINE, PREPARATION METHOD THEREOF AND APPLICATION THEREOF - A conjugated polymer based on benzodithiophene and thienopyrazine with the following formula is provided, | 04-25-2013 |
| 20130237675 | INHIBITORS OF RUTHENIUM OLEFIN METATHESIS CATALYSTS - The present invention relates to a catalytic system comprising a precatalyst, a precatalyst activator and an inhibitor. Further, the invention relates to the use of this catalytic system in ring-opening metathesis polymerisation reactions. | 09-12-2013 |
| 20140107304 | CATALYST SYSTEMS FOR THE CATALYTIC OLIGOMERIZATION OF OLEFINIC MONOMERS - The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (IV); | 04-17-2014 |
| 20140128558 | AMINE-CONTAINING DIFLUORO BENZOTRIAZOLYL POLYMER, PREPARATION METHOD AND USE THEREOF - The present disclosure relates to the field of solar cells. An amine-containing difluoro benzotriazolyl polymer, preparation method, and use thereof are provided; the polymer has a structure as represented by formula (I), | 05-08-2014 |
| 20150361194 | PROCESS OF PRODUCTION OF LARGE AND SPHERICAL POLYMERIZATION CATALYST AND USE OF SAME IN OLEFIN POLYMERIZATIONS - Solid catalyst particles for use in olefin polymerization, olefin polymerization catalyst systems containing the solid catalyst particles, methods of making the solid catalyst particles and the catalyst systems, and methods of polymerizing and copolymerizing olefins involving the use of the catalyst systems. The method of preparing the solid catalyst particles includes steps of maintaining a mixture of reactants at a temperature of about 5° C. to about 35° C. for at least 2 hours; increasing the temperature of said mixture to a temperature of about 40° C. to about 50° C. over a period of at least 3 hours; and increasing the temperature of said mixture to a temperature of about 80° C. to about 90° C. | 12-17-2015 |
| 526146000 | Non-metal sulfur-containing material | 5 |
| 20110065875 | POLYMERIZATION PROCESS WITH CATALYST REACTIVATION - Polymerization processes of the present invention comprise low catalyst concentration. Embodiments include a polymerization process comprising polymerizing free radically (co)polymerizable monomers in a polymerization medium comprising one or more radically (co)polymerizable monomers, a transition metal catalyst complex capable of participating in a one electron redox reaction with an ATRP initiator; a free radical initiator; and an ATRP initiator; (wherein the concentration of transition metal catalyst complex in the polymerization medium is less than 100 ppm). Further embodiments include a polymerization process, comprising polymerizing one or more radically (co)polymerizable monomers in the presence of at least one transition metal catalyst complex; an ATRP initiator; and a reducing agent; wherein the transition metal catalyst complex is present at less than 10 | 03-17-2011 |
| 20130041121 | PROCESS FOR PREPARING HIGH-REACTIVITY ISOBUTENE HOMO- OR COPOLYMERS - Preparation of high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 50 mol % by polymerization of isobutene or isobutene-comprising monomer mixtures in the presence of Lewis acids suitable as polymerization catalysts or of complexes which are effective as polymerization catalysts and are formed from Lewis acids and donors, and in the presence of initiators, wherein the initiators used are organic sulfonic acids Z—SO | 02-14-2013 |
| 20140309386 | METHOD FOR PREPARING PROTON-CONDUCTING PARTICLES CAPABLE OF CATALYZING THE REDUCTION OF OXYGEN OR THE OXIDATION OF HYDROGEN - A method for preparing particles includes a material capable of catalyzing the reduction of oxygen or the oxidation of hydrogen, the particles being functionalized by polymers including at least one repeating unit bearing at least one proton-conducting group, and the particles being covalently bonded to a carbon material. The method includes the following consecutive steps: a) a step of contacting particles, comprising a material capable of catalyzing the reduction of oxygen or the oxidation of hydrogen, with a compound that is an initiator for ATRP polymerization, the compound comprising at least one group capable of being grafted onto the surface of the particles, whereby particles, onto which a radical of the initiator compound is grafted, are obtained; and b) a step of contacting the particles obtained in a) with at least one monomer having at least one proton-conducting group, whereby the polymerization of the monomer from the above-mentioned radicals occurs. | 10-16-2014 |
| 20160090428 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of formula (I) | 03-31-2016 |
| 20220135718 | MULTI-COMPONENT IONOMER - A multi-component ionomer, wherein, in a multi-component copolymer (D) comprising, as essential constitutional units, a structural unit (A) derived from at least one selected from the group consisting of ethylene and an α-olefin containing 3 to 20 carbon atoms, a structural unit (B) derived from a monomer containing at least one selected from the group consisting of a carboxy group and a dicarboxylic anhydride group, and a structural unit (C) derived from a specific acyclic monomer, at least a part of at least one selected from the group consisting of a carboxy group and a dicarboxylic anhydride group of the structural unit (B) is converted into a specific metal-containing carboxylate, and wherein a phase angle δ at which an absolute value G* of a complex modulus measured with a rotational rheometer is 0.1 MPa (G*=0.1 MPa) is from 50 degrees to 75 degrees. | 05-05-2022 |
| 526147000 | Non-metal nitrogen-containing material | 12 |
| 20080207854 | Substantially linear copolymers and methods of making the same - Substantially linear copolymers derived from at least one acyclic aliphatic olefin monomer and at least one nitrogen containing vinyl monomer, wherein the at least one nitrogen containing vinyl monomer is according to Formula (I) | 08-28-2008 |
| 20080249265 | Method For Triggering Radical Polymerization Reactions - The invention relates to an initiator system for triggering a radical polymerization reaction of a preparation that contains monomers and/or oligomers having ethylenically unsaturated groups. The initiators used are open-chain and/or cyclic N,N-diacylhydroxylamines of the general formula R—CO—N(OH)—Co—R′. The invention also relates to a method for starting a radical polymerization reaction by way of the thermally initiated formation of oxyl radicals from open-chain and/or cyclic N,N-diacylhydroxylamines or the O-alkyl or O-acyl derivatives thereof having the general formulae R—CO—N(OH)—CO—R′, R—CO—N(O—R)—CO—R′ or R—CO—N(O—CO—R′)—CO—R′, wherein R, R′R and R′ are the same or different organic substituents and R can be linked with R′. | 10-09-2008 |
| 20090286944 | SELECT PHENOL-HETEROCYCLE LIGANDS, METAL COMPLEXES FORMED THEREFROM, AND THEIR USES AS CATALYSTS - Select phenol-heterocycle ligands, metal-ligand compositions or complexes formed therefrom, and their use as catalysts in polymerization reactions and other transformations are disclosed herein. The catalysts have high performance characteristics, including the ability to catalyze reactions at high temperatures. The catalysts are particularly well-suited for the polymerization of olefins, including the polymerization of styrene to form polystyrene. | 11-19-2009 |
| 20110040051 | CATALYST COMPONENT FOR OLEFIN POLYMERIZATION AND A CATALYST COMPRISING THE SAME - A catalyst component for olefin polymerization comprising an α-cyanosuccinate compound as an internal electron donor, a catalyst comprising the catalyst component, and use of the catalyst in olefin polymerization. When used in propylene polymerization, the catalyst can exhibit good catalytic activity and good hydrogen response, and the resulting polymer can have a good isotacticity and a good molecular weight distribution. | 02-17-2011 |
| 20110184137 | CATALYSTS FOR PREPARING CIS 1,4-POLYDIENES - A polymerization catalyst composition for preparing cis 1,4-polydienes is provided. The catalyst composition comprises (a) a metal-containing compound, said metal being a transition metal or a lanthanide metal; (b) a carbene, (c) an alkylating agent, and optionally (d) a halogen-containing compound with the proviso that the halogen-containing compound must be present when none of the metal-containing compound and the alkylating agent contain a labile halogen atom. Also provided is a process for producing a polydiene comprising reacting a conjugated diene in the presence of the polymerization catalyst composition. | 07-28-2011 |
| 20120196995 | PROCESS FOR PRODUCING POLYDIENES - A process for preparing a polydiene, the process comprising the step of: polymerizing conjugated diene monomer in the presence of a (hydrocarbyloxyhydrocarbyl)amine, where said step of polymerizing employs a lanthanide-based catalyst system. | 08-02-2012 |
| 20130197175 | MANUFACTURING METHOD OF (METH) ACRYLIC POLYMER - In a method for polymerizing a (meth)acrylic monomer by living radical polymerization in the presence of a transition metal complex catalyst, the combined use of a multidentate amine (A), a base (B) and a reducing agent (C) makes it possible to achieve a rapid polymerization reaction and high monomer conversion rate and obtain a polymer having a narrow molecular weight distribution when 5-30 ppm by weight of copper atoms and a mole amount of 7 mmol % or less of multidentate amine (A) are used, each based on the total amount of (meth)acrylic monomer introduced. | 08-01-2013 |
| 20130245216 | SET-LRP POLYMERIZATION OF ACRYLATES IN THE PRESENCE OF ACIDS - SET-LRP polymerization of acrylic monomers under acidic conditions is described. The source of the acidity may be the solvent (e.g., an acetic acid-containing solvent) or in the monomer content (e.g., acrylic acid or methacrylic acid, optionally in combination with other monomers such as methyl methacrylate). | 09-19-2013 |
| 20130345377 | Ethylene Copolymers, Film and Polymerization Process - Ethylene copolymers having a relatively high melt flow ratio and a multimodal profile in a temperature rising elution fractionation (TREF) plot are disclosed. The copolymers can be made into film having good dart impact values and good stiffness properties under decreased extruder pressures. | 12-26-2013 |
| 20140100343 | ETHYLENE COPOLYMER COMPOSITIONS, FILM AND POLYMERIZATION PROCESSES - Ethylene copolymers having a relatively high melt flow ratio and a multimodal profile in a temperature rising elution fractionation (TREF) plot are disclosed. The copolymers can be made into film having good dart impact values and good stiffness properties under decreased extruder pressures. | 04-10-2014 |
| 20140303333 | IRON BISPHENOLATE COMPLEXES AND METHODS OF USE AND SYNTHESIS THEREOF - The present application, relates to iron bisphenolate complexes and methods of use and synthesis thereof. The iron complexes are prepared from tridentate or tetradentate ligands of Formula I: wherein R | 10-09-2014 |
| 20190144587 | METHOD FOR PRODUCING CONJUGATED DIENE POLYMER | 05-16-2019 |
