| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 526171000 | Transition metal is Group VIII (Fe, Co, Ni, Ru, Ph, Pd, Os, Ir, Pt) | 80 |
| 20080207856 | Composition and method for preparing copolymers of polar and non-polar olefins substantially free of free radical initiated polymer - A polymerizable composition including a late transition metal complex, a non-polar olefin, a polar olefin, and a free radical scavenger, wherein the polymerizable composition is capable of forming a linear poly[(non-polar olefin)-(polar olefin)] substantially free of free radical addition polymer, is disclosed. A method of copolymerizing a non-polar olefin with a polar olefin, catalyzed by a late transition metal complex in the presence of a free radical scavenger, to produce a linear poly[(non-polar olefin)-(polar olefin)] substantially free of free radical addition polymer is also disclosed. | 08-28-2008 |
| 20080214758 | Process for the Preparation of Low Molecular Weight Nitrile Rubber - Nitrile rubber polymers, optionally hydrogenated, having lower molecular weight and narrower molecular weight distribution than those known in the art, are prepared by metathesis of nitrile butadiene rubber, optionally followed by hydrogenation. The process comprises the steps of a) reacting a nitrile rubber in the presence of at least one compound which is a ruthenium or osmium based indenylidene complex and optionally b) hydrogenating the resulting lower molecular weight nitrile rubber using standard techniques known in the art. The optionally hydrogenated nitrile rubber, with lower molecular weight and narrower molecular weight distribution has very good heat resistance, excellent ozone and chemical resistance and excellent oil resistance. It is used in automotive, oil, electrical, mechanical engineering and shipbuilding industries. | 09-04-2008 |
| 20080214759 | Polyolefins Prepared From Two New Single Site Catalyst Components In Single Reactor - The present invention discloses the use of two different new single site catalyst components based on different metals for preparing polymers having a broad or multimodal molecular weight distribution in a single reactor. | 09-04-2008 |
| 20080234451 | Olefin Metathesis Polymerisation - A ring-opening metathesis polymerisation (ROMP) reaction is disclosed in which a cyclic alkene compound is subjected to ROMP using a transition metal ROMP catalyst which has an alkyl moiety which is connected to the metal centre thereof through a double bond. The process includes the step of adding sufficient of an acyclic alkene having a carbon-carbon double bond capable of reacting with the catalytic metal moieties attached to the living end of each of the polymer chains generated in the ROMP reaction to end cap the polymer chains and to generate a stable olefin metathesis catalyst. | 09-25-2008 |
| 20080269444 | PEG-Substituted Pyridine Ligands and Related Water-Soluble Catalysts - Amphiphilic Group VIII metathesis catalysts, as can be used in a range of polymerization reactions and other chemical methodologies. | 10-30-2008 |
| 20080306230 | Composition and Associated Method - A composition includes a Group (VIII) transition metal, an anionic ligand bonded to the metal, a neutral electron donor ligand bonded to the metal, and an alkylidene group bonded to the metal. The alkylidene group includes a cycloaliphatic radical substituted with an ionic group. An associated method is also provided. | 12-11-2008 |
| 20080312393 | Linear functional copolymers of ethylene with precise and minimum run length distributions and methods of making thereof - The present invention is related to a linear functional polymer having repeating units A, B and D. Unit A represents —CH | 12-18-2008 |
| 20090012248 | HIGH METATHESIS ACTIVITY RUTHENIUM AND OSMIUM METAL CARBENE COMPLEXES - Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups and can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins are disclosed. Also disclosed are methods of making the carbene compounds. The carbene compounds are of the formula | 01-08-2009 |
| 20090036620 | METHOD FOR PRODUCING OLEFIN COMPOUND - A method for producing an olefin compound represented by the formula (2): | 02-05-2009 |
| 20090043059 | Norbornene monomers with an epoxy group and polymer material thereof - Norbornene monomers with epoxy groups and polymer materials thereof are disclosed. The Norbornene monomers with epoxy groups are prepared by Diels-Alder reaction. The Norbornene monomers with epoxy groups are highly active for ring-opening-metathesis polymerization (ROMP), and the molecular weight and PDI value of the obtained polymers are controllable. | 02-12-2009 |
| 20090156765 | COMPOSITION, ARTICLE, AND ASSOCIATED METHOD - A composition includes a coupling agent composition and a polymer precursor. The coupling agent includes a first cycloolefin substituted with at least one anhydride group and the coupling agent is capable of bonding to a filler having a corresponding binding site. The polymer precursor includes a second cycloolefin. An associated article and a method are also provided. | 06-18-2009 |
| 20090156766 | Sulfur chelated ruthenium compounds useful as olefin metathesis catalysts - Sulfur chelated ruthenium compounds and methods and compositions involving the same. A method may relate to subjecting an olefin to a metathesis reaction in the presence of a sulfur chelated ruthenium compound. A composition may relate to an olefin starting material dissolved in an organic solvent together with a sulfur chelated ruthenium compound. | 06-18-2009 |
| 20090156767 | Substituted pyridine ligands and related water-soluble catalysts - Versatile Group VIII metathesis catalysts, as can be used in a range of polymerization reactions and other chemical methodologies. | 06-18-2009 |
| 20090192277 | Method of producing cyclic olefin polymers having polar functional groups, olefin polymer produced using the method and optical anisotropic film comprising the same - A method of producing a cyclic olefin polymer having a polar functional group and a high molecular weight with a high yield in which a catalyst is not deactivated due to polar functional groups, moisture and oxygen is provided. According to the olefin polymerization method, deactivation of a catalyst due to polar functional groups of monomers can be prevented, and thus a polyolefin having a high molecular weight can be prepared with a high yield, and the ratio of catalyst to monomer can be less than 1/5000 due to good activity of the catalyst, and thus removal of catalyst residues is not required. | 07-30-2009 |
| 20090203860 | Nonpolar phase-soluble methathesis catalysts - One embodiment of the invention provides polyisobutylene (PIB) oligomers that are end-functionalized with ruthenium (Ru) catalysts. Such nonpolar catalysts can be dissolved in nonpolar solvents such as heptane, or any other nonpolar solvent that is otherwise not latently biphasic (i.e., if two or more solvent components are present, they remain miscible with each other throughout the entire reaction process, from the addition of substrate through to the removal of product). Substrate that is dissolved in the nonpolar solvent with the catalyst is converted into product. The lower solubility of the product in the nonpolar solvent renders it easily removable, either by extraction with a more polar solvent or by applying physical means in cases where the product precipitates from the nonpolar solvent. In this manner the catalysts are recycled; since the catalysts remain in the nonpolar solvent, a new reaction can be initiated simply by dissolving fresh substrate into the nonpolar solvent. | 08-13-2009 |
| 20090234085 | Nickel complexes in heterogeneous - The present invention discloses a supported catalyst system that comprises a supported Keim-type nickel complex. It further discloses a method for preparing said supported catalyst system and its use for homo- or co-polymerising polar and non polar monomers. | 09-17-2009 |
| 20090253878 | BRANCHED POLYOLEFIN POLYMER TETHERED WITH POLYMERIZABLE METHACRYLOYL GROUPS AND PROCESS FOR PREPARING SAME - A polyolefin polymer comprising one or more terminal polymerizable methacryloyl groups (i.e. tethered to the main body of the polymer) and a novel process for preparing same are herein disclosed. A hyperbranched polyethylene polymer and a process for preparing same are also disclosed. The polymer is prepared by a novel one-pot copolymerization reaction of an olefin, such as ethylene, and a heterobifunctional comonomer comprising a methacryloyl group, catalyzed by a late transition metal α-diimine catalyst which is selectively non-reactive towards methacryloyl groups. The process allows for preparation of polymers with various chain topologies, including linear, branched, and hyperbranched topologies. The terminal methacryloyl groups within the polymer are reactive in further polymerization reactions. Thus, the polymer may be used in materials and applications which require cross-linking or further polymerization, for example, UV/thermal/radical curable crosslinkers for use in thermoset applications. | 10-08-2009 |
| 20090264608 | METHOD FOR PRODUCING NORBORNENE BASED ADDITION (CO)POLYMER - By specifying a catalyst system (combination of catalyst and cocatalyst) which has high polymerization activity, a norbornene based addition (co)polymer is efficiently produced. Specifically, C | 10-22-2009 |
| 20090275714 | New Ruthenium Complexes as Catalysts for Metathesis Reactions - The invention relates to novel metathesis catalysts of the formula | 11-05-2009 |
| 20090306319 | Highly Organized Polyolefin Structures - A method of preparing periodic, semi-periodic, or semi-random polyethylene-co-acrylic acid or polyethylene-co-methacrylic acid involves polymerizing 1-alkoxyalkyl ester substituted α,Ω-dienes, and/or 1-alkoxyalkyl ester substituted cycloalkenes via olefin metathesis reactions followed by hydrogenation of the alkylene units and subsequently hydrolyzed to the desired polyethylene-co-acrylic acid or polyethylene-co-methacrylic acid. The polyethylene-co-acrylic acid or polyethylene-co-methacrylic acid can then be converted to ionomers by exchange with a monomeric carboxylate salt. | 12-10-2009 |
| 20090318647 | Olefin Functionalization By Metathesis Reaction - This invention relates to a process to functionalize propylene co-oligomer comprising contacting an alkene metathesis catalyst with a heteroatom containing alkene, and a propylene a co-oligomer having an Mn of 300 to 30,000 g/mol comprising 10 to 90 mol % propylene and 10 to 90 mol % of ethylene, wherein the oligomer has at least X % allyl chain ends, where: 1) X=(−0.94 (mol % ethylene incorporated)+100), when 10 to 60 mol % ethylene is present in the co-oligomer, and 2) X=45, when greater than 60 and less than 70 mol % ethylene is present in the co-oligomer, and 3) X=(1.83*(mol % ethylene incorporated)−83), when 70 to 90 mol % ethylene is present in the co-oligomer. This invention also relates to a process to functionalize propylene homo-oligomer comprising contacting an alkene metathesis catalyst with a heteroatom containing alkene, and a propylene homo-oligomer, comprising propylene, wherein the oligomer has: at least 93% allyl chain ends, an Mn of about 500 to about 20,000 g/mol, an isobutyl chain end to allylic vinyl group ratio of 0.8:1 to 1.2:1.0, and less than 100 ppm aluminum. | 12-24-2009 |
| 20100029874 | PROCESS FOR PRODUCTION OF HYDROGENATED POLYMERS AND HYDROGENATED POLYMERS - Provision of, in a process of producing a hydrogenated polymer, which comprises steps of sequentially performing, in the presence of a ruthenium carbene complex, a ring-opening metathesis polymerization reaction of a cyclic olefin and a hydrogenation reaction of a ring-opening metathesis polymer produced by the polymerization reaction to give a hydrogenated polymer, a simple and economic process of obtaining a hydrogenated polymer having an extremely small content of residual ruthenium derived from the ruthenium carbene complex. | 02-04-2010 |
| 20100041844 | RECYCLABLE RUTHENIUM CATALYSTS FOR METATHESIS REACTIONS - The invention relates to novel carbene ligands and their incorporated monomeric and resin/polymer linked ruthenium catalysts, which are recyclable and highly active for olefin metathesis reactions. It is disclosed that significant electronic effect of different substituted 2-alkoxybenzylidene ligands on the catalytic activity and stability of corresponding carbene ruthenium complexes, some of novel ruthenium complexes in the invention can be broadly used as catalysts highly efficient for olefin metathesis reactions, particularly in ring-closing (RCM), ring-opening (ROM), ring-opening metathesis polymerization (ROMP) and cross metathesis (CM) in high yield. The invention also relates to preparation of new ruthenium complexes and the use in metathesis. | 02-18-2010 |
| 20100063230 | CATALYST COMPONENTS BASED ON FERRICINIUM COMPLEXES USED FOR OLEFIN POLYMERISATION - The present invention discloses catalyst components based on ferricinium ligands, their method of preparation and their use in the polymerisation of olefins. | 03-11-2010 |
| 20100113722 | SULFUR CHELATED RUTHENIUM COMPOUNDS USEFUL AS OLEFIN METATHESIS CATALYSTS - Sulfur chelated ruthenium compounds represented by the following formula: | 05-06-2010 |
| 20100168352 | PRODUCTION OF TELECHELIC COMPOUNDS BY METATHESIS DEPOLYMERIZATION - Telechelic unsaturated polymers suitable for conversion to functionalized derivatives such as polyols are prepared by metathesis of an unsaturated copolymer formed by addition polymerization of ethylene, a diene or alkyne and, optionally, one or more C | 07-01-2010 |
| 20100174039 | Catalyst system for polymerizing cyclic olefin having polar functional group, polymerizing method using the catalyst system, olefin polymer produced by the method and optical anisotropic film comprising the olefin polymer - A catalyst system capable of producing a cyclic olefin polymer having a polar functional group and a high molecular weight with a high yield in which a catalyst is not deactivated due to polar functional groups of monomers, and a method of producing polymers using the same are provided. The catalyst system for polymerization of olefin according to the present invention has good thermal and chemical stability, and thus, in the method of preparing polyolefin using the catalyst system, the deactivation of a catalyst due to a polar functional group of the monomer can be prevented, and thus a high yield of the cyclic olefin polymer with a high molecular weight can be obtained when a ratio of the catalyst to the monomer is 1:5000, and the removal of a catalyst residue is not required. | 07-08-2010 |
| 20100190944 | CATALYST SYSTEM, METHOD OF MANUFACTURE AND USE - The present invention relates to a catalyst system, to a method of manufacturing this system, and also to uses of this system. The catalyst system of the invention is characterized in that it comprises molecules of a polymer having, at one of its ends or along the chain, one or more polar functional groups; a solvent, said solvent, due to the fact of said polar functional group of said polymer, provoking and maintaining, when said molecules of the polymer are introduced thereinto, an organization of said molecules of the polymer into aggregates, micelles or vesicles so that the polar functional groups of said polymer are located inside the aggregates, micelles or vesicles formed; and a catalyst activator and a catalyst trapped in said aggregates, micelles or vesicles of said polymer. The catalyst system of the present invention may be used, for example, for catalyzing a (co)polymerization of olefins. | 07-29-2010 |
| 20100234546 | DIENE POLYMER AND PRODUCTION PROCESS THEREOF - A polymer comprising a unit represented by the following formula (1); and a process for producing the polymer comprising the step of polymerizing a diene compound such as 9,9-diallylfluorene in the presence of a polymerization catalyst formed by contacting a nickel compound with an organoaluminum compound and/or a boron compound: | 09-16-2010 |
| 20100240848 | LOW MOLECULAR WEIGHT HYDROGENATED NITRILE RUBBER - The present invention relates to the process for preparing hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art. | 09-23-2010 |
| 20110034652 | CATALYST COMPONENTS BASED ON FERROCENYL COMPLEXES USED FOR OLEFIN POLYMERISATION - The present invention discloses catalyst components based on ferrocenyl ligands, their method of preparation and their use in the polymerization of olefins. | 02-10-2011 |
| 20110092657 | Novel Polymer and Copolymer and Method of Making the Same - The present invention discloses a polymer and a copolymer and a method of making the same. The monomer of the polymer of the present invention includes a bi-triphenylamine functional group having a first end and a second end; a fluorene functional group bonded to the first end; and at least two phenyl isopropyl group bonded to the second end. | 04-21-2011 |
| 20110092658 | Late Transition Metal Catalysts for Olefin Oligomerizations - A series of novel late transition metal catalysts for olefin oligomerization have been invented. The catalysts demonstrate high activity and selectivity for linear α-olefins. | 04-21-2011 |
| 20110172381 | HIGHLY ACTIVE METATHESIS CATALYSTS SELECTIVE FOR ROMP AND RCM REACTIONS - The present invention relates to a kind of novel carbene ligands and ruthenium catalysts, which is highly active and selective for ROMP and RCM reactions, respectively. It discloses the significant electronic and steric effect of different substituted carbene ligands on the catalytic activity and stability of corresponding carbene ruthenium complexes; some of novel ruthenium complexes in the invention can be broadly used as catalysts highly effectively and selective for ROMP and RCM reactions. The invention also relates to preparation of new ruthenium catalysts and the uses in metathesis. Moreover, the invention also provides effective methods of making various functional polymers by ROMP reaction in the presence of new ruthenium catalysts. | 07-14-2011 |
| 20110251363 | STEREOREGULAR ROMP POLYMERS - The invention relates to stereoregular ROMP polymers, the monomers used to make them, and the processes used to convert the monomers to the polymers. | 10-13-2011 |
| 20110282019 | ZWITTERIONIC GROUP VIII TRANSITION METAL INITIATORS SUPPORTED BY OLEFIN LIGANDS - A zwitterionic Group VIII transition metal complex containing the simple and relatively small 3-(arylimino)-but-1-en-2-olato ligand that catalyzes the formation of polypropylene and high molecular weight polyethylene. A novel feature of this catalyst is that the active species is stabilized by a chelated olefin adduct. The present invention also provides methods of polymerizing olefin monomers using zwitterionic catalysts, particularly polypropylene and high molecular weight polyethylene. | 11-17-2011 |
| 20110294971 | Telechelic Olefin Metathesis Polymers from Renewable Feedstocks - Olefin metathesis polymerization reactions are disclosed, and more particularly ring-opening metathesis polymerization of cyclic olefins with olefinic compounds, such as are derived from seed oils and the like, to form telechelic polymers. In one aspect, a method is provided for carrying out a catalytic ring-opening metathesis polymerization reaction, comprising contacting at least one olefinic compound with at least one cyclic olefin, in the presence of a ruthenium alkylidene olefin metathesis catalyst under conditions effective to allow ring-opening metathesis polymerization of the cyclic olefin, whereby the cyclic olefin polymer formed is terminated with the olefinic compound. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial chemistry. | 12-01-2011 |
| 20120016093 | RECYCLABLE RUTHENIUM CATALYSTS FOR METATHESIS REACTIONS - The invention relates to novel carbene ligands and their incorporated monomeric and resin/polymer linked ruthenium catalysts, which are recyclable and highly active for olefin metathesis reactions. It is disclosed that significant electronic effect of different substituted 2-alkoxybenzylidene ligands on the catalytic activity and stability of corresponding carbene ruthenium complexes, some of novel ruthenium complexes in the invention can be broadly used as catalysts highly efficient for olefin metathesis reactions, particularly in ring-closing (RCM), ring-opening (ROM), ring-opening metathesis polymerization (ROMP) and cross metathesis (CM) in high yield. The invention also relates to preparation of new ruthenium complexes and the use in metathesis. | 01-19-2012 |
| 20120022225 | Olefin Metathesis Polymerisation - A ring-opening metathesis polymerisation (ROMP) reaction is disclosed in which a cyclic alkene compound is subjected to ROMP using a ruthenium ROMP catalyst having heterocyclic ligands in the presence of a compound from which such ligans may be derived. The process includes the step of adding sufficient of an acyclic alkene having a carbon-carbon double bond capable of reacting with the catalytic metal moieties attached to the living end of each of the polymer chains generated in the ROMP reaction to end cap the polymer chains and to generate a olefin metathesis catalyst. The process includes reiterating the polymerisation steps by adding further amounts of a cyclic alkene compound. The catalyst may be generated in situ from a precursor compound by the addition of a compound from which heterocyclic ligands may be derived by interaction with the precursor compound. | 01-26-2012 |
| 20120077945 | Novel Class Of Olefin Metathesis Catalysts, Methods Of Preparation, And Processes For The Use Thereof - This invention relates to a metathesis catalyst comprising (i) a Group 8 metal hydride-dihydrogen complex represented by the formula: | 03-29-2012 |
| 20120116036 | PRODUCTION METHOD OF COPOLYMER OF ALLYL MONOMER CONTAINING POLAR GROUP - The present invention relates to a method for producing a high-molecular-weight copolymer of polar group-containing allyl monomers including monomer units represented by formulae (3) and (4) (in the formulae, R | 05-10-2012 |
| 20120271019 | CATALYTIC COMPLEX FOR OLEFIN METATHESIS REACTIONS, PROCESS FOR THE PREPARATION THEREOF AND USE THEREOF - The present invention relates to a catalytic complex for olefin metathesis reactions, to a process for its preparation and to its use in olefin metathesis reactions, particularly in ring opening metathesis polymerisation (ROMP) reactions. | 10-25-2012 |
| 20120283400 | Process for the Preparation of Supported Catalysts - The present invention refers to a process for the preparation of supported catalysts for the polymerization of olefins comprising at least a late transition metal complex, wherein the process comprises two steps. In the first step a catalytically active component comprising at least one late transition metal complex, optionally in the presence of one or more cocatalysts is mixed with a support; and in the second step the obtained mixture is treated at a reduced pressure under a flow of inert gas at a temperature equal to or below 40° C. to obtain a supported catalyst. The method is especially useful for the preparation of dual supported catalysts, useful in the gas-phase polymerization of olefins. | 11-08-2012 |
| 20130041122 | Polymers Prepared By Ring Opening / Cross Metathesis - This invention relates to a process for producing a polymer of a cyclic olefin and a linear mono-olefin, the process comprising contacting at least one C | 02-14-2013 |
| 20130059993 | CATALYST FOR POLYMERIZATION OF NORBORNENE MONOMERS, METHOD FOR PRODUCING NORBORNENE POLYMER, METHOD FOR PRODUCING NORBORNENE COPOLYMER, NORBORNENE POLYMER AND TRANSITION METAL COMPLEX - A catalyst for a polymerization of norbornene monomers includes a transition metal complex represented by a formula (1). A method for producing a norbornene copolymer includes copolymerizing first norbornene monomers corresponding to a first monomer unit represented by a formula (2) and second norbornene monomers corresponding to a second monomer unit represented by a formula (3) in a presence of the catalyst. The transition metal complex is preferably (π-allyl){2-[N-(2,6-diisopropylphenyl)iminomethyl]phenolate}palladium, (π-allyl){2-[N-(2,6-diisopropylphenyl)iminomethyl]-4-fluorophenolate}palladium, (π-allyl)[2-(N-phenyliminomethyl)phenolate]palladium or (π-allyl){2-[N-(2,6-diisopropylphenyl)iminomethyl]-6-methylphenolate}palladium. | 03-07-2013 |
| 20130059994 | PORPHYRIN COPOLYMER CONTAINING QUINOXALINE UNIT, PREPARATION METHOD AND USES THEREOF - A porphyrin copolymer containing quinoxaline unit, preparation method and uses thereof are disclosed. The copolymer has the structural formula (I), wherein R | 03-07-2013 |
| 20130066029 | MULTI-METALLIC ORGANOMETALLIC COMPLEXES, AND RELATED POLYMERS, COMPOSITIONS, METHODS AND SYSTEMS - Multi-metallic organometallic complexes that allow performance of olefin based reaction and in particular polymerization of olefins to produce polyolefin polymers, and related methods and systems are described. | 03-14-2013 |
| 20130096270 | PORPHYRIN COPOLYMER CONTAINING THIENOTHIADIAZOLE UNITS, PREPARATION METHOD AND USES THEREOF - A porphyrin copolymer containing thienothiadiazole units, preparation method and uses thereof are disclosed. The copolymer has the structural formula (I), wherein: R | 04-18-2013 |
| 20130131297 | SYNTHESIS OF DENDRITIC POLYOLEFINS BY METATHESIS INSERTION POLYMERIZATION - A one step process for making a dendritic hydrocarbon polymer, e.g., dendritic polyolefin, by metathesis insertion polymerization. The process comprises polymerizing an amount of one or more cyclic olefins and one or more multi-functional (meth)acrylates in the presence of a metathesis catalyst and under conditions sufficient to produce the dendritic hydrocarbon polymer. The one or more multi-functional (meth)acrylates have a functionality of 3 or higher. The dendritic hydrocarbon polymer can be hydrogenated to produce a substantially saturated dendritic hydrocarbon polymer. The hydrogenation can take place in the same reaction vessel as the polymerization, i.e., one pot process. | 05-23-2013 |
| 20130165607 | METHOD FOR PRODUCING POLAR GROUP-CONTAINING OLEFIN COPOLYMERS - The present invention relates to a method of producing a polymer in the method for producing a copolymer of olefin and a polar group-containing monomer represented by formula (1): | 06-27-2013 |
| 20130225774 | HIGH METATHESIS ACTIVITY RUTHENIUM AND OSMIUM METAL CARBENE COMPLEXES - Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups and can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins are disclosed-of the formula | 08-29-2013 |
| 20130261271 | CATALYST FOR NORBORNENE MONOMER POLYMERIZATION AND METHOD FOR PRODUCING NORBORNENE POLYMER - The invention relates to a catalyst for the polymerization of norbornene monomers comprising transition metal complex (A) represented by formula (1); and a method for producing a norbornene (co)polymer, especially a norbornene copolymer containing a monomer unit represented by formulae (2) and (3), wherein a norbornen monomer is homopolyzed or copolymerized in the presence of the polymerization catalyst. Preferable examples of the transition metal complex (A) include (π-allyl){4-(2,6-diisopropylphenylimino)-2-penten-2-olato-κ | 10-03-2013 |
| 20130281644 | Fully Backbone Degradable and Functionalizable Polymers Derived from the Ring-Opening Metathesis Polymerization (ROMP) - Functionalized degradable ROMP (ring-opening metathesis) polymers and methods, starting monomers and synthetic monomeric and polymeric intermediates for preparation of such functionalized polymers. More specifically, monomers having a bicyclic oxazinone structure, a bicyclic urea, or a heteronorbornene core structure, among others, have been found to be substrates for ROMP polymerization. ROMP polymers prepared from these monomers have been found to be both acid and base labile. Additionally, the monomers can be chemically modified at a site distal to the polymerizable moieties and bridgehead carbons. The properties of the resulting polymers and copolymers can be tailored without destabiling the monomer. Polymers and copolymers of the invention are degradable but have a glass temperature of 100° C. or more. | 10-24-2013 |
| 20130296511 | LATENT, HIGH-ACTIVITY OLEFIN METATHESIS CATALYSTS CONTAINING AN N-HETEROCYCLIC CARBENE LIGAND - The invention provides novel organometallic complexes useful as olefin metathesis catalysts. The complexes have an N-heterocyclic carbene ligand and a chelating carbene ligand associated with a Group 8 transition metal center. The molecular structure of the complexes can be altered so as to provide a substantial latency period. The complexes are particularly useful in catalyzing ring closing metathesis of acyclic olefins and ring opening metathesis polymerization of cyclic olefins. | 11-07-2013 |
| 20140011970 | METAL BIS(MALONATO) BORATE MONOMERS, POLYMERS AND COPOLYMERS DERIVED THEREFROM, METHODS OF MAKING THE MONOMERS AND POLYMERS, AND ARTICLES DERIVED THEREFROM - Disclosed herein are novel metal bis(malonato)borate monomers and polymers formed by polymerizing the monomers. The monomers and the polymers have conductive properties, making them particularly useful in applications requiring materials with conductive properties. When the metal is lithium, the polymers are particularly well suited for use in lithium ion batteries. | 01-09-2014 |
| 20140051817 | HIGH METATHESIS ACTIVITY RUTHENIUM AND OSMIUM METAL CARBENE COMPLEXES - Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups and can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins are disclosed-of the formula | 02-20-2014 |
| 20140080984 | HIGHLY ACTIVE METATHESIS CATALYSTS SELECTIVE FOR ROMP AND RCM REACTIONS - The present invention relates to a kind of novel carbene ligands and ruthenium catalysts, which is highly active and selective for ROMP and RCM reactions, respectively. It discloses the significant electronic and steric effect of different substituted carbene ligands on the catalytic activity and stability of corresponding carbene ruthenium complexes; some of novel ruthenium complexes in the invention can be broadly used as catalysts highly effectively and selective for ROMP and RCM reactions. The invention also relates to preparation of new ruthenium catalysts and the uses in metathesis. Moreover, the invention also provides effective methods of making various functional polymers by ROMP reaction in the presence of new ruthenium catalysts. | 03-20-2014 |
| 20140088277 | Functionalized Resins Obtained Via Olefin Metathesis - This invention relates to a reaction product obtained by contacting a polymer comprising units derived from dicyclopentadiene with a vinyl terminated macromonomer, a vinyl monomer or a vinylene monomer, in the presence of a metathesis catalyst, where the vinyl monomer or vinylene monomer is represented by the formula: | 03-27-2014 |
| 20140142263 | DIRECT CH ARYLATION METHOD USING PALLADIUM-BASED CATALYST - Disclosed herein is a first example of effective direct position specific C—H arylation of thieno[3,4-b]pyrazine derivative and several hetero aryl bromide under the ‘Heck-type’ experiment condition using Pd(OAc) | 05-22-2014 |
| 20140171607 | New Complexes of Ruthenium, Method for Their Preparation, and Their Application in Olefin Metathesis Reactions - The present invention provides new ruthenium complexes of Formula (1), which contain a chelate ring created by a halogen atom X. The invention concerns also a method for the preparation of the new ruthenium complexes and their application in metathesis reactions. | 06-19-2014 |
| 20140213746 | Olefin Metathesis - The present invention relates to pre-catalysts for olefin metathesis and composition involving these pre-catalysts. | 07-31-2014 |
| 20140323671 | PROCESS FOR METATHESIS OF OLEFINS OBTAINED FROM FISCHER-TROPSCH FRACTIONS USING A RUTHENIUM COMPLEX COMPRISING A DISSYMMETRICAL N-HETEROCYCLIC DIAMINOCARBENE - This invention describes a process for metathesis of olefins from feedstocks obtained from the Fischer-Tropsch process, using as catalyst a ruthenium alkylidene complex comprising a saturated or unsaturated, dissymmetrical N-heterocyclic carbene (NHC) ligand. | 10-30-2014 |
| 20140357820 | OLEFIN METATHESIS CATALYST COMPOSITIONS COMPRISING AT LEAST TWO METAL CARBENE OLEFIN METATHESIS CATALYSTS - This invention relates to olefin metathesis catalysts and methods for controlling olefin metathesis reactions. More particularly, the present invention relates to methods and compositions for catalyzing and controlling ring opening metathesis polymerization (ROMP) reactions and the manufacture of polymer articles via ROMP. This invention also relates to olefin metathesis catalyst compositions comprising at least two metal carbene olefin metathesis catalysts. This invention also relates to a ROMP composition comprising a resin composition comprising at least one cyclic olefin, and an olefin metathesis catalyst composition comprising at least two metal carbene olefin metathesis catalysts. This invention also relates to a method of making an article comprising combining an olefin metathesis catalyst composition comprising at least two metal carbene olefin metathesis catalysts with a resin composition comprising at least one cyclic olefin, thereby forming a ROMP composition, and subjecting the ROMP composition to conditions effective to polymerize the ROMP composition. Polymer products produced via the metathesis reactions of the invention may be utilized for a wide range of materials and composite applications. The invention has utility in the fields of catalysis, organic synthesis, and polymer and materials chemistry and manufacture. | 12-04-2014 |
| 20140371409 | PREPARATION OF HIGH MOLECULAR WEIGHT POLYMERS BY DIRECT ARYLATION AND HETEROARYLATION - A method for preparing polymers by direct heteroarylation or arylation polycondensation is described herein. The method includes preparing a reaction mixture including at least a monomer to be polymerized, a catalyst and a ligand; heating the reaction mixture, and, optionally, end-capping the reaction mixture. | 12-18-2014 |
| 20150025212 | NOVEL ORGANOMETALLIC CATALYSTS - The present invention refers to novel ruthenium- and osmium-based catalysts for olefin metathesis reactions, particularly to catalysts having stereoselective properties. Z-selectivity is obtained by utilising two mono-anionic ligands of very different steric requirement. In olefin metathesis reactions these catalysts selectively provide the Z-isomer of disubstituted olefinic products even in presence of air or of acids. | 01-22-2015 |
| 20150051361 | PRODUCTION METHOD OF COPOLYMER OF ALLYL MONOMER CONTAINING POLAR GROUP - The present invention relates to a method for producing a high-molecular-weight copolymer of polar group-containing allyl monomers including monomer units represented by formulae (3) and (4) (in the formulae, R | 02-19-2015 |
| 20150099857 | CATALYST FOR SYNTHESIZING POLYOLEFINS - The present invention relates to a method for producing a high-molecular-weight copolymer of polar group-containing allyl monomers comprising monomer units represented by formulae (3) and (4) (in the formulae, R | 04-09-2015 |
| 20150141602 | PROCESS FOR TREATING A DICYCLOPENTADIENE MONOMER - A monomer treatment process including treating at least one metathesis polymerizable monomer composition having a purity of less than 95 weight percent of a dicyclopentadiene monomer with an alkali metal-containing additive prior to polymerizing the metathesis polymerizable monomer composition such that the treated polymerized monomer exhibits improved properties in metathesis reactions. | 05-21-2015 |
| 20150141603 | LATENT, HIGH-ACTIVITY OLEFIN METATHESIS CATALYSTS CONTAINING AN N-HETEROCYCLIC CARBENE LIGAND - The invention provides novel organometallic complexes useful as olefin metathesis catalysts. The complexes have an N-heterocyclic carbene ligand and a chelating carbene ligand associated with a Group 8 transition metal center. The molecular structure of the complexes can be altered so as to provide a substantial latency period. The complexes are particularly useful in catalyzing ring closing metathesis of acyclic olefins and ring opening metathesis polymerization of cyclic olefins. | 05-21-2015 |
| 20150299236 | Z-SELECTIVE METATHESIS CATALYSTS - A novel chelated ruthenium-based metathesis catalyst bearing an N-2,6-diisopropylphenyl group is reported and displays near-perfect selectivity for the Z-olefin (>95%), as well as unparalleled TONs of up to 7,400, in a variety of homodimerization and industrially relevant metathesis reactions. This derivative and other new catalytically-active species were synthesized using an improved method employing sodium carboxylates to induce the salt metathesis and C—H activation of these chelated complexes. All of these new ruthenium-based catalysts are highly Z-selective in the homodimerization of terminal olefins. | 10-22-2015 |
| 20150299362 | PROCESS FOR PREPARING POLYMERS BY MEANS OF RING-OPENING POLYMERIZATION - The present invention relates to a process for preparing polymers by means of ring-opening metathetic polymerization, consisting of the following steps:
| 10-22-2015 |
| 20150315310 | Hydrocarbon-based polymers comprising two end groups with 2-oxo-1,3-dioxolan-4-yl endings, preparation thereof and use thereof - Process for the preparation of a hydrocarbon polymer comprising two end groups having 2-oxo-1,3-dioxolan-4-yl final parts by ring opening metathesis in the presence of a metathesis catalyst, of a chain transfer agent comprising a carbonate ring and of a compound of formula comprising at least one C | 11-05-2015 |
| 20150329576 | NOVEL RUTHENIUM COMPLEXES, METHOD OF THEIR PRODUCTION AND THEIR USAGE - The invention concerns the ruthenium complexes of the formula 1: | 11-19-2015 |
| 20150344616 | PROCESS OF MANUFACTURING AND APPLICATIONS OF A MULTI-COMPONENT BENZO[1,2-B:4,5-B] DITHIOPHENE-THIENOTHIOPHENE RANDOMLY SUBSTITUTED CONJUGATED POLYMERS FOR ORGANIC SOLAR CELLS - A process of polymerizing | 12-03-2015 |
| 20150367338 | CATALYST COMPLEXES WITH CARBENE LIGAND AND METHOD FOR MAKING SAME AND USE IN METATHESIS REACTION - This invention relates to catalyst compounds and the synthesis and applications useful in olefin metathesis reactions. The catalyst compounds of the invention are represented by the formula (I): wherein M is a Group 8 metal; X | 12-24-2015 |
| 20150368376 | PRODUCTION METHOD OF POLAR GROUP-CONTAINING OLEFIN POLYMERS - The present invention relates to a method for producing a homopolymer of olefin represented by formula (1): CH | 12-24-2015 |
| 20160096910 | 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 | 04-07-2016 |
| 20160108073 | NOVEL TRANSITION METAL COMPLEXES, THEIR PREPARATION AND USE - Novel transition metal complexes are provided which represent viable catalysts for a broad variety of reactions such as hydrogenation reactions and metathesis reactions. Novel preparation processes are made available via unprecedented routes inter alia not involving structures according to Grubbs I or Grubbs II catalysts. | 04-21-2016 |
| 20160177012 | FUNCTIONALIZED ELASTOMER CONTAINING A BORON GROUP | 06-23-2016 |
| 20160185897 | OLEFIN METATHESIS CATALYST COMPOSITIONS COMPRISING AT LEAST TWO METAL CARBENE OLEFIN METATHESIS CATALYSTS - This invention relates to olefin metathesis catalysts and methods for controlling olefin metathesis reactions. More particularly, the present invention relates to methods and compositions for catalyzing and controlling ring opening metathesis polymerization (ROMP) reactions and the manufacture of polymer articles via ROMP. This invention also relates to olefin metathesis catalyst compositions comprising at least two metal carbene olefin metathesis catalysts, wherein the at least two metal carbene olefin metathesis catalysts are structurally different, are chemically different, are distinct compounds, are not isomers, are not structural isomers, are not diastereoisomers, are not stereoisomers, are not enantiomers, or are not cis/trans isomers of each other, or any combinations thereof. This invention also relates to a ROMP composition comprising a resin composition comprising at least one cyclic olefin, and an olefin metathesis catalyst composition comprising at least two metal carbene olefin metathesis catalysts, wherein the at least two metal carbene olefin metathesis catalysts are structurally different, are chemically different, are distinct compounds, are not isomers, are not structural isomers, are not diastereoisomers, are not stereoisomers, are not enantiomers, or are not cis/trans isomers of each other, or any combinations thereof. This invention also relates to a method of making an article comprising combining an olefin metathesis catalyst composition comprising at least two metal carbene olefin metathesis catalysts with a resin composition comprising at least one cyclic olefin, thereby forming a ROMP composition, and subjecting the ROMP composition to conditions effective to polymerize the ROMP composition, wherein the at least two metal carbene olefin metathesis catalysts are structurally different, are chemically different, are distinct compounds, are not isomers, are not structural isomers, are not diastereoisomers, are not stereoisomers, are not enantiomers, or are not cis/trans isomers of each other, or any combinations thereof. Polymer products produced via the metathesis reactions of the invention may be utilized for a wide range of materials and composite applications. The invention has utility in the fields of catalysis, organic synthesis, and polymer and materials chemistry and manufacture. | 06-30-2016 |
