Patent application number | Description | Published |
20100144969 | ISOSELECTIVE POLYMERIZATION OF EPOXIDES - The present invention provides novel bimetallic complexes and methods of using the same in the isoselective polymerization of epoxides. The invention also provides methods of kinetic resolution of epoxides. The invention further provides polyethers with high enantiomeric excess that are useful in applications ranging from consumer goods to materials. | 06-10-2010 |
20100145046 | Substituted 3-hydroxy-delta-lactones from epoxides - Catalysts and methods for the carbonylation of epoxides to substituted 3-hydroxy-δ-lactones and β-lactones are disclosed. | 06-10-2010 |
20100204437 | POLYCARBONATES MADE USING HIGHLY SELECTIVE CATALYSTS - Poly(propylene carbonates) are prepared from propylene oxide and CO | 08-12-2010 |
20100311941 | COPOLYMERIZATION OF EPOXIDES AND CYCLIC ANHYDRIDES - The present invention provides novel polymers and methods of preparing the same. | 12-09-2010 |
20110087001 | POLYMERS OF ETHYLENE OXIDE AND CARBON DIOXIDE - The present disclosure is directed, in part, to methods of synthesizing a poly(ethylene carbonate) polymer from the reaction of ethylene oxide (EO) and carbon dioxide (CO | 04-14-2011 |
20110313128 | ISOTACTIC SPECIFIC CATALYST FOR DIRECT PRODUCTION OF HIGHLY ISOTACTIC POLY (PROPYLENE OXIDE) OR HIGHLY ISOTACTIC POLY (BUTYLENE OXIDE) - (Salph or methoxy salph) Co (initiating ligand) catalyze homopolymerizing rac-PO to produce pure highly isotactic PPO and rac-1-butylene oxide to produce pure isotactic poly(butylene oxide). A product is unfractionated isotactic PPO of m-dyad content>81%, normally at least 99%. | 12-22-2011 |
20130079491 | ISOSELECTIVE POLYMERIZATION OF EPOXIDES - The present invention provides novel bimetallic complexes and methods of using the same in the isoselective polymerization of epoxides. The invention also provides methods of kinetic resolution of epoxides. The invention further provides polyethers with high enantiomeric excess that are useful in applications ranging from consumer goods to materials. | 03-28-2013 |
20130137011 | Ionomers and Methods of Making Same and Uses Thereof - Ionomers comprising ionic groups such as, for example, tetraalkylammonium groups and methods of making such ionomers. For example, the ionomers can be produced by ring opening metathesis polymerization of alkene-containing monomers with tetraalkylammonium groups and, optionally, alkene-containing monomers without tetraalkylammonium groups. The ionomers can be used in applications such as, for example, fuel cell applications. | 05-30-2013 |
20130158230 | Carbonylative Polymerization Methods - Provided are methods forming polymers. The methods include, for example, tandem carbonylation and polymerization reactions, where epoxides are catalytically carbonylated to form lactones and the lactones catalytically polymerized to form polymers without the need to isolate or purify the lactone intermediate. Also provided are methods for catalytically polymerizing beta-propiolactone. Homopolymers and copolymers can be formed using the methods disclosed herein. | 06-20-2013 |
20130296499 | IONOMERS AND METHODS OF MAKING SAME AND USES THEREOF - Phosphazenium-based ionomers and methods of making them are disclosed. The ionomers are useful in making membranes for fuel cells and other devices that benefit from extremely base-stable membranes. The polymers (ionomers) contain repeating units of formula: | 11-07-2013 |
20140066591 | POLYMERS OF ETHYLENE OXIDE AND CARBON DIOXIDE - The present disclosure is directed, in part, to methods of synthesizing a poly(ethylene carbonate) polymer from the reaction of ethylene oxide (EO) and carbon dioxide (CO | 03-06-2014 |
20140107339 | SUBSTITUTED 3-HYDROXY-DELTA-LACTONES FROM EPOXIDES - Catalysts and methods for the carbonylation of epoxides to substituted 3-hydroxy-δ-lactones and β-lactones are disclosed. | 04-17-2014 |
20140179895 | POLYETHERS, METHODS OF MAKING SAME, AND USES THEREOF - Isotactic polyethers, methods of making polyethers, and uses of polyethers. The polyethers have a chain transfer group formed from a chain transfer agent. The methods of making the polyethers use monoalcohol chain transfer agents or multifunctional chain transfer agents. The polyethers can be used in materials, such as polyurethanes, elastomers, thermoset plastics, and thermoplastics, and as non-ionic surfactants. | 06-26-2014 |
20140206829 | ISOSELECTIVE POLYMERIZATION OF EPOXIDES - The present invention provides novel bimetallic complexes and methods of using the same in the isoselective polymerization of epoxides. The invention also provides methods of kinetic resolution of epoxides. The invention further provides polyethers with high enantiomeric excess that are useful in applications ranging from consumer goods to materials. | 07-24-2014 |
20150057415 | THERMOPLASTIC ELASTOMER COMPOSITION AND PROCESS FOR MANUFACTURING THE SAME - The present invention relates to a thermoplastic elastomer composition which comprises a branched olefin copolymer comprising: a main chain of an ethylene/α-olefin copolymer; and a side chain derived from a crystalline propylene polymer containing a vinyl group at one end, wherein the content of α-olefin in the main chain is 70 mol % or less, the composition has an elongation at break of 500% or higher, and has an elastic recovery rate of 70% or more when recovering from an extension to 300% elongation, and a process for manufacturing the same. | 02-26-2015 |
Patent application number | Description | Published |
20080214854 | Production of isotactic and regiorandom polypropylene based polymer and block copolymers - One step ortho-alkylation of anilines with styrenes to give chiral anilines is obtained using a strong acid catalyst, e.g. CF | 09-04-2008 |
20080262164 | Isotactic specific catalyst for direct production of highly isotactic poly (propylene oxide) or highly isotactic poly (butylene oxide) - (Salph or methoxy salph) Co (initiating ligand) catalyze homopolymerizing rac-PO to produce pure highly isotactic PPO and rac-1-butylene oxide to produce pure isotactic poly(butylene oxide). A product is unfractionated isotactic PPO of m-dyad content >81%, normally at least 99%. | 10-23-2008 |
20090192278 | Alkene polymerization using beta-ketoiminato metal complexes - Group (IV) and (X) metal complexes with ketoiminate ligands are prepared by deprotonation of a ketoimine ligand followed by reaction with the appropriate metal halide. In preferred cases, the compounds are titanium (IV), zirconium (IV) and hafnium (IV), preferred cases, the compounds are titanium (IV), zirconium (IV) and hafnium (IV) complexes with (arylimino-alkyl)-spiro[4,5]decan-6-one ligands. The compounds are useful as catalysts for polymerizing ethylene, C | 07-30-2009 |
20090287000 | LOW PRESSURE CARBONYLATION OF HETEROCYCLES - Heterocycles, e.g., epoxides, are carbonylated at low pressure with high percentage conversion to cyclic, ring expanded products using the catalyst | 11-19-2009 |
20100029882 | Production of isotactic and regiorandom polypropylene based polymer and block copolymers - One step ortho-alkylation of anilines with styrenes to give chiral anilines is obtained using a strong acid catalyst, e.g. CF | 02-04-2010 |
20100036077 | Regioregular polymerization of alpha-olefins to produce polyethylene with a predominance of methyl substituents - Regioregular polymers of C | 02-11-2010 |
20100063213 | GEL-PROCESSED POLYOLEFIN COMPOSITIONS - Semicrystalline polyolefins with narrow molecular weight distributions characterized by a low polydispersity index (PDI) and selected from the families of homopolymers, statistical copolymers, block copolymers, and graft copolymers, can be blended with a low molecular weight fluid diluent to create gel fiber and film compositions. These gel compositions, when subjected to mechanical or thermomechanical processing, either before or after removal of the diluent, result in fiber or film compositions that combine high tensile strength with other desirable physical properties, such as high rigidity, large extension at break, and/or high recoverable elasticity. These desirable combinations of properties are superior to those obtained from gel-processed semicrystalline polyolefins that are substantially similar in composition and molecular weight, but that have large PDIs. | 03-11-2010 |
20110152497 | CATALYSTS AND METHODS FOR POLYMER SYNTHESIS - The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex. | 06-23-2011 |
20110230580 | POLYCARBONATE POLYOL COMPOSITIONS AND METHODS - In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO | 09-22-2011 |
20120093706 | COPOLYMERIZATION OF PROPYLENE OXIDE AND CARBON DIOXIDE AND HOMOPOLYMERIZATION OF PROPYLENE OXIDE - Copolymers of propylene oxide and carbon dioxide and homopolymers of propylene oxide are made using two dimensional double metal cyanide complexes having the formula Co[M(CN) | 04-19-2012 |
20130066044 | POLYCARBONATE POLYOL COMPOSITIONS AND METHODS - In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO | 03-14-2013 |
20130144031 | CATALYSTS AND METHODS FOR POLYMER SYNTHESIS - The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex. | 06-06-2013 |
20130144032 | CATALYSTS AND METHODS FOR POLYMER SYNTHESIS - The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex. | 06-06-2013 |
20130144033 | CATALYSTS AND METHODS FOR POLYMER SYNTHESIS - The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex. | 06-06-2013 |
20130165623 | COPOLYMERIZATION OF PROPYLENE OXIDE AND CARBON DIOXIDE AND HOMOPOLYMERIZATION OF PROPYLENE OXIDE - Copolymers of propylene oxide and carbon dioxide and homopolymers of propylene oxide are made using two dimensional double metal cyanide complexes having the formula Co[M(CN) | 06-27-2013 |
20130244864 | POLYCARBONATE POLYOL COMPOSITIONS AND METHODS - In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO | 09-19-2013 |
20140046008 | POLYCARBONATE POLYOL COMPOSITIONS AND METHODS - In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO | 02-13-2014 |