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| Number | Title | Issue Date |
| 7405265 | Method of preparing catalyst for polymerization of aliphatic polycarbonate and method of polymerizing aliphatic polycarbonate Disclosed is a method of preparing a catalyst for polymerization of aliphatic polycarbonates and a method of polymerizing an aliphatic polycarbonate. This method includes reacting a zinc precursor and organic dicarboxylic acid in a non-ionic surfactant-included solu... | 07/29/2008 |
| 7323605 | Double metal cyanide-catalyzed, low unsaturation polyethers from boron-containing starters The present invention provides a process for the double metal cyanide (DMC)-catalyzed production of low unsaturation polyethers from boron-containing starters. The polyethers produced by the inventive process may be reacted with one or more isocyanates to provide po... | 01/29/2008 |
| 7160962 | Elastomer-modified epoxy siloxane compositions Elastomer-modified Epoxy-polysiloxane compositions of this invention are prepared by combining a silicone intermediate, with an epoxy resin, an elastomeric resinous intermediate, a polyfunctional amine, an optional organometallic catalyst, and optional fillers, pigm... | 01/09/2007 |
| 7087710 | Polymeric surfactants derived from cyclic monomers having pendant fluorinated carbon groups A fluorine containing polymer which acts as a wetting, flow or leveling agent, and has at least one polar group. The polymer has at least one pendant or ether side chain containing from about 1 to about 20 carbon atoms with at least 25% of the hydrogen atoms being r... | 08/08/2006 |
| 7053250 | Method of preparing a polyether polyol An improved method for synthesizing a double metal cyanide (DMC) catalyst combines and sonicates aqueous and non-aqueous solutions of a first metal salt, such as Zn(OAc)2, of a second metal salt, such as CoCl2, and of an alkali metal cyanide, s... | 05/30/2006 |
| 7041760 | Process for production of butyl rubber The present invention relates to a process for producing polymers containing repeating units derived from at least one isoolefin monomer, optionally repeating units derived from at least one multiolefin monomer and optionally further copolymerizable monomers in the ... | 05/09/2006 |
| 7034103 | Process for production of polyols with hydroxide containing double metal cyanide (DMC) catalysts The present invention provides process for producing polyols using a crystalline, hydroxide containing double metal cyanide (DMC) catalyst of the formulae (I) or (II), M1x[M2(CN)6]yOH.L  (I) | 04/25/2006 |
| 6979722 | Process for production of alkyllene oxide polymers According to a process for production of alkylene oxide polymers offered by the present invention, an alkylene oxide is subjected to a polymerization reaction under presence of a catalyst in a solvent containing an aliphatic hydrocarbon having from five to seven car... | 12/27/2005 |
| 6977236 | Preparation of a double metal cyanide catalyst The present invention relates to a process for the preparation of a double metal cyanide (DMC) catalyst, which process involves: (a) combining an aqueous solution of metal salt with an aqueous solution of a metal cyanide salt and r... | 12/20/2005 |
| 6906110 | Method for the production of polyurethanes In a process for producing polyurethanes by reacting at least one polyisocyanate with at least one compound containing at least two hydrogen atoms which are reactive toward isocyanate groups, the compound having at least two active hydrogen atoms which is used is at... | 06/14/2005 |
| 6835801 | Activated starter mixtures and the processes related thereto The present invention is directed to an activated starter mixture which can be used to prepare polyoxyalkylene polyols. The present invention is also directed to a process for preparing an activated starter mixture, particularly, to a process for preparing an activa... | 12/28/2004 |
| 6833431 | Double-metal cyanide catalysts for preparing polyether polyols The invention is directed to a double-metal cyanide catalyst for the preparation of a polyether polyol by the polyaddition of an alkylene oxide on to a starter compound containing active hydrogen atoms, wherein the DMC catalyst comprises a) at least one double-metal... | 12/21/2004 |
| 6830704 | Composition of 2-cyanoacrylate, lewis acid metal salt and clathrate A 2-cyanoacrylate composition useful as an adhesive contains a Lewis acid metal salt comprising a metal such as aluminum, gallium, indium or thalium, and the conjugate base of an acid such as a monohalo-, dihalo- or trihalo-acetate (e.g. aluminum trifluoroacetate sa... | 12/14/2004 |
| 6815529 | Catalyst for producing aliphatic polycarbonate and the preparation thereof This invention relates to a catalyst for producing aliphatic polycarbonate, which is composed of a rare-earth coordination compound; an alkyl metal compound; a polyol; and a carbonate. The catalytic efficiency of the catalyst of the present invention is more than 8Ã... | 11/09/2004 |
| 6716788 | Preparation of a double metal cyanide catalyst The present invention relates to a process for the preparation of a double metal cyanide (DMC) catalyst, which process involves: (a) combining an aqueous solution of a metal salt with an aqueous solution of a metal cyanide salt and reacting these solutions; a... | 04/06/2004 |
| 6713599 | Formation of polymer polyols with a narrow polydispersity using double metal cyanide (DMC) catalysts A method of forming a polyol includes the steps of reacting an initiator with an alkylene oxide, and optionally carbon dioxide, in the presence of a double metal cyanide catalyst and a sterically hindered chain transfer agent capable of protonating the growing polyo... | 03/30/2004 |
| 6699961 | DMC complex catalyst and process for its preparation A process for the preparation of a DMC catalyst useful in the polymerization of alkylene oxides into polyether polyols, which process having the steps of (a combining an aqueous solution of a metal salt with an aqueous solution of a metal salt with an aqu... | 03/02/2004 |
| 6639025 | Elastomer-modified epoxy siloxane compositions Elastomer-modified Epoxy-polysiloxane compositions of this invention are prepared by combining a silicone intermediate, with an epoxy resin, an elastomeric resinous intermediate, a polyfunctional amine, an optional organometallic catalyst, and optional fi... | 10/28/2003 |
| 6632897 | Use of nano-scaled metal oxide particles as polymerization catalysts Described is the use of nanoscale metal oxide particles as catalysts for the thermal and/or photochemical polymerization of species having at least one polymerizable carbon-carbon multiple bond and/or at least one carbon containing ring capable of undergo... | 10/14/2003 |
| 6624286 | Double-metal cyanide catalysts containing polyester for preparing polyether polyols The invention relates to new improved double-metal cyanide (DMC) catalysts for the preparation of polyether-polyols by polyaddition of alkylene oxides on to starter compounds containing active hydrogen atoms, the catalyst comprising a double-metal cyanide... | 09/23/2003 |
| 6586564 | Double-metal cyanide catalysts for preparing polyether polyols The invention relates to double-metal cyanide (DMC) catalysts for preparing polyether polyols by the polyaddition of alkylene oxides on to starter compounds containing active hydrogen atoms, wherein the DMC catalysts are composed of: a) at least one DMC c... | 07/01/2003 |
| 6569981 | Crystallizing polyether polyols, a method for producing them and use of the same This invention relates to crystallizing polyether polyols which can be produced firstly by the reaction of propylene oxide and polyhydroxy compounds in the presence of an alkoxy compound which contains zinc and/or aluminium atoms to form a crystallizing p... | 05/27/2003 |
| 6552163 | Method for fractioning poly (ethylene oxide) formed using a metallic cyanide catalyst A poly(ethylene oxide) polymer having low and high molecular weight fractions is fractionated by dissolving the polymer in a solvent for the low molecular weight fraction. A good separation of the low and high molecular weight fractions can be obtained. W... | 04/22/2003 |
| 6547985 | Composition of 2-cyanoacrylate, Lewis acid metal salt and clathrate A 2-cyanoacrylate composition useful as an adhesive contains a Lewis acid metal salt which comprises a specific metal such as aluminum, gallium, indium or thallium, and the conjugate base of an acid having oxygen such as a monohalo-, dihalo or trihaloacet... | 04/15/2003 |
| 6541593 | Process for the preparation of polyether oligomer containing reactive silicon group A process for producing a reactive silicon group-containing polyether oligomer, which comprises reacting (a) a polyether oligomer the backbone chain of which comprises a polyether and which contains in a side chain or at a terminus of its molecule at leas... | 04/01/2003 |
| 6528616 | Double metal cyanide catalysts for the production of polyther polyols The invention relates to new double metal cyanide (DMC) catalysts for the production of polyether polyols by polyaddition of alkylene oxides to starter compounds containing active hydrogen atoms, wherein the catalyst contains a) double metal cyanide compo... | 03/04/2003 |
| 6503995 | Method of producing crosslinkable silyl group-containing polyoxyalkylene polymers A method of producing a polyoxyalkylene polymer having at least one crosslinkable silyl group and at least one hydroxyl group in each molecule which comprises treating a polyoxyalkylene polymer having at least one unsaturated group and at least one alcoho... | 01/07/2003 |
| 6458918 | Method for producing partially crystalline polyether polyols The present invention relates to a process for the preparation of novel, partially crystalline polyether polyols with a functionality of ࣙ2, an average molecular weight Mn of 500 to 100,000 and a molar proportion of isotactic triads determini... | 10/01/2002 |
| 6429166 | Method for preparing metal cyanide catalyst/polyol initiator slurries Metal cyanide catalyst dispersions in initiator compounds are prepared by precipitating the catalyst in an inert organic compound, mixing the resulting slurry with the initiator and stripping off the inert organic compound. Using this method, an active al... | 08/06/2002 |
| 6388048 | Complexing agent-modified trimetal cyanide catalyst Metal [hexacyanocobaltate, cobalthexanitrite nitroferricyanide] complexes are useful alkylene oxide polymerization catalysts. The metal is any that forms a precipitate with the hexacyanocobaltate, cobalthexanitrite and nitroferricyanide groups. These cata... | 05/14/2002 |
| 6376645 | Complexing agent-modified hexacyanometallate hexanitrometallate catalysts Metal [hexacyanometallate hexanitrometallate] complexes are useful alkylene oxide polymerization catalysts. The metal is any that forms a precipitate with hexacyanometallate and hexanitrometallate groups. These catalysts are made from less expensive raw m... | 04/23/2002 |
| 6348565 | Method for preparing metal cyanide catalysts using silane-functional ligands Complexes of a metal cyanide polymerization catalyst and certain silane-functional complexing agents provide a method whereby supported, active metal cyanide catalysts can be prepared. The catalysts are useful alkylene oxide polymerization catalysts that ... | 02/19/2002 |
| 6245880 | Organophosphorous composition, method of producing organophosphorous compound, polyester composition and method of producing the same A polyester having a good color tone can be obtained by using, as an ester-forming component, a compound derived from an organophosphorous composition comprising an organophosphorous compound represented by the general formula (1): ##STR1## wherein R... | 06/12/2001 |
| 6235808 | Radiation-curable cycloaliphatic epoxy compounds, uses thereof, and compositions containing them Disclosed are compounds of the formulas ##STR1## which are useful as monomers in photopolymerizable compositions. Also disclosed are methods of polymerizing these monomers, and polymers produced thereby.... | 05/22/2001 |
| 6084059 | Production process for organometallic fine particle and catalyst for polymerization The present invention provides: a production process for a polyalkylene oxide with fast polymerization reaction rate and good production efficiency; a catalyst for polymerization and a dispersion thereof which are effective for the above production proces... | 07/04/2000 |
| 6051680 | Silylated double metal cyanide complex catalysts The amount of high molecular weight impurity present in a polyether polyol produced by alkoxylation of an active hydrogen-containing initiator using a double metal cyanide complex catalyst may be advantageously lowered by treating the catalyst prior to us... | 04/18/2000 |
| 6015914 | Compound having oxetanyl group, process for producing same, and curing composition Provided is a compound having an oxetanyl group and represented by the following formula: ##STR1## wherein R1 represents a methyl group or an ethyl group and R2 represents a hydrogen atom, a halogen atom, a straight or branched ... | 01/18/2000 |
| 5844070 | Process for rapid activation of double metal cyanide catalysts A process for activating double metal cyanide catalysts is disclosed. A polyol starter or starter/catalyst mixture is heated under vacuum under conditions effective to achieve improved stripping compared with that which can be achieved through conventiona... | 12/01/1998 |
| 5789626 | Highly active double metal cyanide catalysts Highly active double metal cyanide (DMC) catalysts are disclosed. The catalysts comprise a DMC complex, and organic complexing agent, and from about 5 to about 80 wt. %, based on the amount of catalyst, of a polyether having a number average molecular wei... | 08/04/1998 |
| 5770678 | Polymerization of, and depolymerization to, cyclic ethers using selected metal compound catalysts A process for polymerizing oxiranes, oxetanes, oxepanes, dioxolanes, trioxanes, and tetrahydrofurans to their respective polymers by contacting them with a selected metal compound is disclosed; and also a process for depolymerizing polytetrahydrofurans to... | 06/23/1998 |
