| Entries |
| Document | Title | Date |
|---|
| 20080214754 | DIENE POLYMER AND PROCESS FOR PRODUCING THE SAME - A polymer containing units represented by the defined formula (1); and a process for producing the polymer, which comprises the step of polymerizing a compound represented by the defined formula (3), the units represented by the formula (1) being polymerized units of the compound represented by the formula (3) such as 5,5-diallylbarbituric acid. | 09-04-2008 |
| 20080214755 | OLEFIN-DIENE COPOLYMER AND PROCESS FOR PRODUCING THE SAME - A copolymer containing units represented by the defined formula (1) and olefin units; and a process for producing the copolymer, which comprises the step of copolymerizing a compound represented by the defined formula (3) with an olefin, the units represented by the formula (1) being polymerized units of the compound represented by the formula (3) such as 5,5-diallyl-2,2-dimethyl-1,3-dioxane. | 09-04-2008 |
| 20080214756 | CYCLIC OLEFIN-DIENE COPOLYMER AND PROCESS FOR PRODUCING THE SAME - A copolymer containing units represented by the defined formula (1) and cyclic olefin units; and a process for producing the copolymer, which comprises the step of copolymerizing a compound represented by the defined formula (3) with a cyclic olefin, the units represented by the formula (1) being polymerized units of the compound represented by the formula (3) such as isopropylidene diallylmalonate. | 09-04-2008 |
| 20080221286 | DIENE POLYMER AND PROCESS FOR PRODUCING THE SAME - A polymer containing units represented by the defined formula (1); and a process for producing the polymer, which comprises the step of polymerizing a compound represented by the defined formula (3), the units represented by the formula (1) being polymerized units of the compound represented by the formula (3) such as 1,6-heptadiene. | 09-11-2008 |
| 20080221287 | DIENE POLYMER AND PROCESS FOR PRODUCING THE SAME - A polymer containing units represented by the defined formula (1); and a process for producing the polymer, which comprises the step of polymerizing a compound represented by the defined formula (3), the units represented by the formula (1) being polymerized units of the compound represented by the formula (3) such as 2,2-dially-1,3-cyclopentanedione. | 09-11-2008 |
| 20080221288 | DIENE POLYMER AND PROCESS FOR PRODUCING THE SAME - A polymer containing units represented by the defined formula (1); and a process for producing the polymer, which comprises the step of polymerizing a compound represented by the defined formula (3), the units represented by the formula (1) being polymerized units of the compound represented by the formula (3) such as 5,5-diallyl-2,2-dimethyl-1,3-dioxane. | 09-11-2008 |
| 20080234450 | DIENE POLYMER AND PROCESS FOR PRODUCING THE SAME - A polymer containing units represented by the defined formula (1); and a process for producing the polymer, which comprises the step of polymerizing a compound represented by the defined formula (3), the units represented by the formula (1) being polymerized units of the compound represented by the formula (3) such as 9,9-diallylfluorene. | 09-25-2008 |
| 20080269440 | Polymerization of Olefins - Compositions and methods for polymerization of olefins are disclosed that include a mixture or a reaction product of a group 4 element halide, and a group 13 element halide. | 10-30-2008 |
| 20080319147 | Catalyst Composition II - This invention relates to a transition metal catalyst compound represented by the formula: LMX | 12-25-2008 |
| 20090176948 | Transition metal complexes, and catalysts compositions for preparing ethylene homopolymers or copolymers - Disclosed are a transition metal complex having a high catalytic activity for the preparation of an ethylene homopolymer or a copolymer of ethylene and α-olefin and a catalyst composition comprising the same. More specifically, there are provided a transition metal complex having, around a group IV transition metal, a cyclopentadiene derivative and at least one aryl oxide ligand with a heterocyclic aryl derivative substituted at the ortho-position thereof, with no crosslinkage between the ligands, a catalyst composition comprising the transition metal complex and an organoaluminum compound or boron compound as cocatalyst, and a method for the preparation of high molecular weight ethylene homopolymers or copolymers of ethylene and α-olefin using the same. | 07-09-2009 |
| 20090292088 | PROCESS FOR PRODUCTION OF CYCLIC OLEFIN ADDITION POLYMER - A process is provided whereby cycloolefin addition (co)polymers having excellent heat resistance, transparency and toughness and having a molecular weight adjusted such that the copolymers can form films, sheets and the like, are produced simply by using small amounts of a palladium catalyst and a molecular weight modifier without steps for removing the catalyst residues and unreacted monomers. The process for producing cycloolefin addition (co)polymers includes addition (co)polymerizing monomers including a cycloolefin compound as a main monomer, in the presence of ethene and catalysts including (a) an organic acid salt of palladium or a β-diketonate compound of palladium; (b) a cyclopentylphosphine compound; and (c) an ionic boron compound or an ionic aluminum compound. | 11-26-2009 |
| 20090299020 | TRANSITION METAL INITIATORS SUPPORTED BY KETONE DIIMINE LIGANDS FOR THE HOMOPOLYMERIZATION OF OLEFINS AND THE COPOLYMERIZATION OF OLEFINS WITH POLAR COMONOMERS - Metal-ligand combination initiators are provided which yield organometallic complexes capable of the polymerization of olefins to high molecular weight polymers. Additionally, these initiators also enable the copolymerization of olefins with functionalized comonomers. These organometallic complexes comprise of a late transition metal with a neutral chelating ligand that contains a Lewis basic functionality in conjugation with an electronically delocalized conduit extending from the metal to the functionality. This structural feature results in a highly active complex, which generates high molecular weight polymers with unique microstructures. Under particular conditions, the organometallic complexes provide for the living polymerization of monomers and comonomers. | 12-03-2009 |
| 20100004411 | POLYMERISATION OF ETHYLENE AND ALPHA-OLEFINS WITH IMINO-QUINOLINOL COMPLEXES - The present invention discloses active oligomerisation or polymerisation catalyst systems based on imino-quinolinol complexes. | 01-07-2010 |
| 20100048840 | TRANSITION METAL CATALYTIC SYSTEMS AND METHODS FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND OLEFINS USING THE SAME - Disclosed herein is a group IV transition metal catalyst for producing an ethylene homopolymer or an ethylene-olefin copolymers, having high catalytic activity, which includes a cyclopentadiene derivative and one or more anionic ligands having an aryl group substituted with an aryl derivative at an ortho-position thereof around a transition metal, the ligands not being crosslinked to each other, a catalyst system including the group IV transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst, and a method of producing ethylene homopolymers or ethylene-olefin copolymers using the catalyst system. | 02-25-2010 |
| 20100063229 | Polymerisation of Ethylene and Alpha-Olefins with Pyrrol-Iminophenol Complexes - The present invention relates to the field of single site catalyst systems based on pyrrol-iminophenol, pyrrol-iminoalcohol or pyrrol-iminoamine complexes and suitable for oligomerising or homo- or co-polymerising ethylene and alpha-olefins. | 03-11-2010 |
| 20100081776 | TRANSITION METAL CATALYTIC SYSTEMS AND METHODS FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND a-OLEFINS USING THE SAME - Provided are transition metal catalytic systems for preparing ethylene homopolymers or copolymers of ethylene with α-olefins. More specifically, provided are Group 4 transition metal catalysts, which is characterized in that the catalyst comprises around the Group 4 transition metal a cyclopentadiene derivative, and at least one aryloxide ligand(s) having a fluorenyl group or a derivative thereof (which is ready to be substituted at 9-position) that functions as an electron donor and serves to stabilize the catalytic system by surrounding an oxygen atom that links the ligand to the transition metal at ortho-position, and there is no cross-linkage between the ligands; catalytic systems comprising such transition metal catalyst and aluminoxane cocatalyst or boron compound cocatalyst; and processes for preparing ethylene homopolymers or copolymers of ethylene with α-olefins by using the same. | 04-01-2010 |
| 20100121011 | 1-BUTENE PROPYLENE COPOLYMER COMPOSITIONS - A 1-butene/propylene copolymer composition having a content of propylene derived units from 1 to 4% by weight, wherein at least 50% of the crystalline polymer is present in the thermodynamically stable, trigonal Form I (detected by DSC analysis) after 100 hours of the first melting at room temperature comprising: b) from 5% by weight to 95% by weight of an atactic 1-butene propylene copolymer having the following features: i) distribution of molecular weight Mw/Mn equal to or lower than 4; ii) no enthalpy of fusion detectable at a differential scanning calorimeter (DSC); and iii) infrared crystallinity lower than 0.5%; b) from 5% by weight to 95% by weight of an isotactic 1-butene propylene copolymer having the following features: isotactic pentads (mmmm) measured by C-NMR, higher than 80%; i) ii) melting point (Tm(II)) higher than 70° C.; and iii) distribution of molecular weight Mw/Mn equal to or lower than 4. | 05-13-2010 |
| 20100298512 | TRANSITION METAL COMPLEXES, CATALYSTS COMPOSITION CONTAINING THE SAME, AND PROCESS FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND ALPHA-OLEFINS USING THE SAME - The present invention relates to a transition metal complex useful as a transition metal catalyst in the preparation of an ethylene homopolymer or a copolymer of ethylene and an α-olefin, a catalyst composition comprising the same and a process of preparing an ethylene homopolymer or a copolymer of ethylene and an α-olefin using the same. More particularly, it relates to a transition metal complex having a cyclopentadiene derivative and at least one phenyl oxide ligand substituted at the 2-position of phenyl with, for example, a silyl group having a C | 11-25-2010 |
| 20110172380 | NEW TRANSITION METAL CATALYTIC SYSTEMS AND METHODS FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND a-OLEFINS USING THE SAME - Provided are transition metal catalytic systems for preparing ethylene homopolymers or copolymers of ethylene with α-olefins. More specifically, provided are Group 4 transition metal catalysts, which is characterized in that the Group 4 transition metal catalyst comprises around the Group 4 transition metal a cyclopentadiene derivative, and at least one naphthoxide ligand(s) having aryl substituent(s) that function(s) as an electron donor and serve(s) to stabilize the catalyst system by surrounding an oxygen atom that links the ligand to the transition metal at 2-position, and there is no cross-linkage between the ligands; catalytic systems comprising such transition metal catalyst and aluminoxane cocatalyst or boron compound cocatalyst; and processes for preparing ethylene homopolymers or copolymers of ethylene with α-olefins by using the same. | 07-14-2011 |
| 20110245440 | COPOLYMER AND METHOD FOR PRODUCING SAME - A copolymer and method for providing it are provided, which includes a monomer unit represented by the following formula (1) and an olefin unit: | 10-06-2011 |
| 20110245441 | POLYMER AND METHOD FOR PRODUCING SAME - A polymer and a method for producing same are provided, which includes a repeating unit represented by the following formula (1): | 10-06-2011 |
| 20110319576 | PROCESS FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE WITH ALPHA-OLEFIN BY USING THE TRANSITION METAL COMPOUND - Provided are transition metal catalytic systems for preparing ethylene homopolymers or copolymers of ethylene with α-olefins. More specifically, provided are Group 4 transition metal catalysts, which is characterized in that the catalyst comprises around the Group 4 transition metal a cyclopentadiene derivative, and at least one aryloxide ligand(s) having a fluorenyl group or a derivative thereof (which is ready to be substituted at 9-position) that functions as an electron donor and serves to stabilize the catalytic system by surrounding an oxygen atom that links the ligand to the transition metal at ortho-position, and there is no cross-linkage between the ligands; catalytic systems comprising such transition metal catalyst and aluminoxane cocatalyst or boron compound cocatalyst; and processes for preparing ethylene homopolymers or copolymers of ethylene with α-olefins by using the same. | 12-29-2011 |
| 20120029158 | METHOD FOR PREPARING CYCLIC OLEFIN ADDITION POLYMER OF HIGH GAS PERMEABILITY - A method for preparing a cyclic olefin addition polymer of high gas permeability, which method including subjecting a specific type of cyclic olefin-functional siloxane and a mixture thereof with a specific type of cyclic olefin compound to addition polymerization in the presence of a multi-component catalyst containing (A) a zero-valent palladium compound, (B) an ionic boron compound, and (C) a phosphine compound having a substituent group selected from an alkyl group having 3 to 6 carbon atoms, a cycloalkyl group and an aryl group, to obtain a cyclic olefin addition polymer of high gas permeability wherein a ratio of the structural units derived from the cyclic olefin-functional siloxane is at 10 to 100 mole % of the addition polymer and a number average molecular weight (Mn) ranges from 100,000 to 2,000,000. | 02-02-2012 |
| 20120108772 | METHOD FOR PRODUCING AN ELASTOMER USING A TRANSITION METAL CATALYST - The present invention relates to a method of producing an elastomer. Specifically, the method of producing an elastomer according to the present invention comprises a step of polymerizing ethylene, propylene, and optionally, a diene monomer in the presence of a catalyst composition containing a transition metal compound. The method of producing an elastomer according to the present invention makes it possible to prepare a high molecular weight, ethylene-propylene or ethylene-propylene-diene, elastic copolymer at a high temperature. | 05-03-2012 |
| 20120130032 | POLYMERIZATION PROCESS USING A SUPPORTED CONSTRAINED GEOMETRY CATALYST - A polymerization process includes contacting the following in a gas-phase reactor system under polymerization conditions for making a polymer product: a metallocene-based catalyst system including a supported constrained geometry catalyst, at least one monomer, and an additive selected from a group consisting of an aluminum distearate, an ethoxylated amine, and a mixture thereof. The additive may be selected from a group consisting of an aluminum distearate, an ethoxylated amine, polyethylenimines, and other additives suitable for use in the production of polymers for food contact applications and end products, including a mixture of a polysulfone copolymer, a polymeric polyamine, and oil-soluble sulfonic acid, in a carrier fluid, and mixtures thereof. | 05-24-2012 |
| 20120172552 | TRANSITION METAL ION COMPLEX, METHOD FOR PRODUCING THE SAME, AND METHOD FOR PRODUCING POLYMER - A transition metal ion complex represented by formula (1): | 07-05-2012 |
| 20120190806 | Phosphine Borane Compounds Comprising Imidazol Groups And Method For Producing Phosphine Borane Compounds Comprising Imidazol Groups - The present invention relates to imidazolo-containing phosphinoborane compounds, to optically active ligands prepared using them, to transition metal complexes which comprise such ligands, and to catalysts which comprise such transition metal complexes. The present invention further relates to the particular processes for preparing the phosphinoborane compounds, the optically active ligands, the transition metal complexes and the catalysts, and to the use of the catalysts for organic transformation reactions. The present invention further relates to a process for preparing optically active ligands comprising imidazolo-containing phosphorus compounds using imidazolo-containing phosphinoborane compounds. | 07-26-2012 |
| 20120283398 | AIR AND WATER TOLERANT CATALYST - A catalyst and/or precatalyst for olefin oligomerization comprising one or more coordination complexes having one or more central palladium metal atoms. Each palladium atom is bonded to four ligand donor atoms. Two of the donor atoms are group 16 elements and two of the donor atoms are group 15 elements. Also provided are neutral or cationic coordination complex dimers, so that the two palladium atoms are both bonded to one or two donor atoms from group 16, and each palladium atom is bonded to two donor atoms from group 15. In some instances, each of the two group 16 donor atoms are oxygen and each of the four group 15 donor atoms are nitrogen. | 11-08-2012 |
| 20120329966 | SUPPORTED METALLOCENE CATALYST, METHOD FOR PREPARING THE SAME AND METHOD FOR PREPARING POLYOLEFIN USING THE SAME - Provided are a supported metallocene catalyst, a method for preparing the same and a method for preparing polyolefin using the same. The supported metallocene catalyst prepared by incorporating a metallocene compound having a ligand substituted with alkoxide or aryloxide into a conventional supported metallocene catalyst and incorporating a borate compound as a second co-catalyst exhibits considerably superior catalyst activity and easily controls molecular weight distribution, as compared to the conventional metallocene-supported catalyst. | 12-27-2012 |
| 20130023634 | CATALYST SYSTEM BASED ON QUINOLINE DONORS - A catalyst system obtainable with a process comprising the following steps:
| 01-24-2013 |
| 20130281642 | Bulk Polymerization Of Conjugated Dienes Using A Nickel-Based Catalyst System - A process for preparing a polydiene, the process comprising the step of polymerizing conjugated diene monomer with a nickel-based catalyst system, 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, where the temperature of the polymerization mixture is maintained below 34° C. during said step of polymerizing, and where the conversion of the conjugated diene monomer is maintained below 30%. | 10-24-2013 |
| 20140073751 | Processes For The Preparation Of High-Cis Polydienes - The present disclosure is directed towards a solution or bulk polymerization process for preparing high-cis polydienes that utilizes at least one vinyl aromatic compound as a molecular weight regulator. The disclosed solution or bulk polymerization processes are useful for preparing high-cis polydienes with a Mooney viscosity between 30 and 55 while allowing the use of lower amounts of catalyst. | 03-13-2014 |
| 20150148502 | NON-CYCLOPENTADIENYL-BASED CHROMIUM CATALYSTS FOR OLEFIN POLYMERIZATION - Provided is a non-cyclopentadienyl-based chromium-ligand complex, preferably a chromium-ligand complex of formula (J): LCr(R | 05-28-2015 |
| 20160115265 | METAL COMPLEX WITH A LEWIS BASE LIGAND - A metal complex of the formula (1) | 04-28-2016 |
| 20160168280 | BRIDGED METALLOCENE COMPLEX FOR OLEFIN POLYMERIZATION | 06-16-2016 |
| 20160177010 | FUNCTIONALIZED ELASTOMER CONTAINING A SULFUR GROUP | 06-23-2016 |
