| Patent Number |
Title Of Patent |
Date Issued |
| 7615654 |
Direct epoxidation process |
November 10, 2009 |
| A process is disclosed for the epoxidation of an olefin with hydrogen and oxygen in the presence of an oxidation catalyst comprising a transition metal zeolite, and a noble metal catalyst comprising a noble metal and an ion-exchange resin. The process is highly productive and selective i |
| 7528269 |
Process for oxidizing organic compounds |
May 5, 2009 |
| This invention is a process for oxidizing an organic compound with a hydrogen peroxide solution produced by reacting hydrogen and oxygen in the presence of an oxidation catalyst. The hydrogen peroxide is produced by reacting hydrogen and oxygen in a solvent in the presence of a H.sub |
| 7501532 |
Process for producing hydrogen peroxide |
March 10, 2009 |
| A process comprising reacting hydrogen and oxygen in the presence of a noble metal, a thiol or thiolate, and a solvent is disclosed. The thiol or thiolate improves the hydrogen peroxide yield. The produced hydrogen peroxide may be used to oxidize organic compounds in the presence of an |
| 7470800 |
Titanium zeolite catalysts |
December 30, 2008 |
| Catalysts useful for epoxidizing olefins are disclosed. The catalysts comprise a vinylpyridine polymer and a titanium zeolite. Preferably, the vinylpyridine polymer encapsulates the titanium zeolite. The catalysts are easy to prepare and use, they are easy to recover and reuse, and they |
| 7453003 |
Direct epoxidation catalyst and process |
November 18, 2008 |
| A catalyst comprising a transition metal zeolite, a noble metal, and a thiol is disclosed. The catalyst is used in an epoxidation process comprising reacting an olefin, hydrogen, and oxygen. The presence of a thiol in the catalyst reduces the formation of alkanes from the hydrogenati |
| 7432384 |
Direct epoxidation process |
October 7, 2008 |
| A process is disclosed for the epoxidation of an olefin with hydrogen and oxygen in the presence of an oxidation catalyst comprising a transition metal zeolite and a polymer-encapsulated noble metal catalyst. The noble metal catalyst comprises a noble metal and an ion-exchange resin. The |
| 7357909 |
Process for producing hydrogen peroxide |
April 15, 2008 |
| A process for producing hydrogen peroxide from hydrogen and oxygen in the presence of a noble metal and a cationic polymer comprising a halogen-containing anion is disclosed. The cationic polymer improves hydrogen peroxide yield, and it can be easily recycled. |
| 7288237 |
Epoxidation catalyst |
October 30, 2007 |
| Titanium or vanadium zeolite catalysts are prepared by reacting a titanium or vanadium compound, a silicon source, a templating agent, a hydrocarbon, and a surfactant at a temperature and for a time sufficient to form a molecular sieve. The catalyst is useful in olefin epoxidation wi |
| 7276464 |
Titanium zeolite catalysts |
October 2, 2007 |
| Catalysts useful for epoxidizing olefins are disclosed. The catalysts comprise a vinylpyridine polymer and a titanium zeolite. Preferably, the vinylpyridine polymer encapsulates the titanium zeolite. The catalysts are easy to prepare and use, they are easy to recover and reuse, and they |
| 7223832 |
Double-metal cyanide catalysts which can be used to prepare polyols and the processes related th |
May 29, 2007 |
| The present invention is directed to polyols prepared in the presence of double metal cyanide catalysts ("DMC") which are prepared by combining i) at least one metal salt; ii) at least one metal cyanide salt; iii) at least one organic complexing ligand; iv) at least one alkali metal salt |
| 7041708 |
Ultraviolet-curable polyurethane compositions |
May 9, 2006 |
| Ultraviolet (UV)-curable polyurethane compositions are provided which are made by reacting an isocyanate with an ultraviolet (UV)-curable polyol that is made by co-polymerizing an alkylene oxide, an unsaturated carboxylic acid or anhydride and a hydroxy functional compound and which |
| 7030255 |
Oxidation process with in-situ H202 generation and polymer-encapsulated catalysts therefor |
April 18, 2006 |
| Catalysts useful for oxidation reactions are disclosed. The catalysts comprise a titanium zeolite, a transition metal, and a polymer, wherein at least one of the titanium zeolite or transition metal is encapsulated within a thin layer of the polymer. The catalysts are easy to prepare and |
| 6958405 |
Polymer-encapsulated titanium zeolites for oxidation reactions |
October 25, 2005 |
| Catalysts useful for oxidation reactions are disclosed. The catalysts comprise a polymer-encapsulated titanium zeolite. The catalysts are easy to prepare and use, they are easy to recover and reuse, and they provide good conversions in a variety of important oxidation processes. The |
| 6884826 |
Process for preparing double metal cyanide catalyzed polyols |
April 26, 2005 |
| The present invention provides a process for preparing a polyoxyalkylene polyol by polyoxyalklating a starter compound with a mixture of two different alkylene oxide monomers in which the first alkylene oxide monomer content of the mixture decreases as the content of the second alkyl |
| 6867162 |
Double-metal cyanide catalysts which can be used to prepare polyols and the processes related th |
March 15, 2005 |
| The present invention is directed to double metal cyanide catalysts ("DMC") which are prepared by combining i) at least one metal salt; ii) at least one metal cyanide salt; iii) at least one organic complexing ligand; iv) at least one alkali metal salt; and, optionally, v) at least one |
| 6815513 |
Process for preparing comb-branched polymers |
November 9, 2004 |
| A continuous process for making a comb-branched copolymer of an acrylic monomer and a polyether macromonomer is disclosed. The process is performed by continuously feeding a reaction zone with a monomer stream that contains an acrylic acid and a polyether macromonomer, and an initiat |
| 6797665 |
Double-metal cyanide catalysts for preparing polyether polyols |
September 28, 2004 |
| The invention relates to double-metal cyanide catalysts for preparing 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 double-metal cyanide compound; b) at least one organic |
| 6696383 |
Double-metal cyanide catalysts which can be used to prepare polyols and the processes related th |
February 24, 2004 |
| The present invention is directed to double metal cyanide catalysts ("DMC") which can be used to prepare polyols. DMC catalysts of the present invention are prepared by combining i) at least one metal salt; ii) at least one metal cyanide salt; iii) at least one organic complexing ligand; |
| 6214958 |
Process for preparing comb-branched polymers |
April 10, 2001 |
| A continuous process for making a comb-branched copolymer of an acrylic monomer and a polyether macromonomer is disclosed. The process is performed by continuously feeding a reaction zone with a monomer stream that contains an acrylic acid and a polyether macromonomer, and an initiat |
| 6211330 |
Process of making an epoxide polymer using highly active double metal cyanide catalysts |
April 3, 2001 |
| Improved double metal cyanide (DMC) catalysts are disclosed. The catalysts comprise a DMC compound, an organic complexing agent, from about 0.1 to about 10 wt. % of an organophosphine oxide, and optionally, a polyether. Compared with other DMC catalysts prepared in the absence of the |
| 6063897 |
Acid-treated double metal cyanide complex catalysts |
May 16, 2000 |
| The amount of high molecular weight impurity present in a polyether polyol produced by alkoxylation of an active hydrogen-containing initiator and a substantially noncrystalline highly active double metal cyanide complex catalyst may be advantageously lowered by treating the catalyst pri |
| 6028230 |
Epoxide polymerization process |
February 22, 2000 |
| The amount of high molecular weight impurity present in a polyether polyol produced by alkoxylation of an active hydrogen-containing initiator using an epoxide such as propylene oxide and a substantially amorphous highly active double metal cyanide complex catalyst may be advantageously |
| 6018017 |
Highly active double metal cyanide catalysts |
January 25, 2000 |
| Improved double metal cyanide catalysts are disclosed. The substantially amorphous catalysts of the invention are more active for polymerizing epoxides than conventional DMC catalysts, which have a substantial crystalline component. Polyol products made with the catalysts are unusual |
| 6013596 |
Double metal cyanide catalysts containing cyclic, bidentate complexing agents |
January 11, 2000 |
| Double metal cyanide (DMC) catalysts and methods for making them are disclosed. The catalysts comprise a DMC compound, an organic complexing agent, and optionally, a functionalized polymer. The key component is the complexing agent, which comprises a C.sub.3 -C.sub.5 aliphatic alcohol a |
| 5998672 |
Double metal cyanide catalysts |
December 7, 1999 |
| Double metal cyanide catalysts, prepared by drying a catalyst slurry by a non-agglomerative drying method such as spray drying or freeze drying, directly produces catalyst particles of fine particle size such that intensive grinding is not required. The catalysts thus produced are di |
| 5900384 |
Double metal cyanide catalysts |
May 4, 1999 |
| Double metal cyanide catalysts, prepared by drying a catalyst slurry by a non-agglomerative drying method such as spray drying or freeze drying, directly produces catalyst particles of fine particle size such that intensive grinding is not required. The catalysts thus produced are di |
| 5789626 |
Highly active double metal cyanide catalysts |
August 4, 1998 |
| 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 weight less than about 500. The |
| 5780584 |
Highly active double metal cyanide complex catalysts |
July 14, 1998 |
| Highly active double metal cyanide (DMC) complex catalysts and methods for making them are disclosed. The catalysts contain less than about 0.2 moles of metal salt per mole of DMC compound in the catalyst, and unlike other highly active DMC catalysts, are substantially crystalline. Polye |
| 5767323 |
Process for preparing polyoxyalkylene polyether polyols having low levels of transition metals t |
June 16, 1998 |
| Substantially transition metal-free polyoxyalkylene polyethers may be prepared by double metal cyanide complex-catalyzed oxyalkylation of a suitable hydric oxyalkylation initiator molecule by employing 15 ppm or less of a double metal cyanide complex oxyalkylation catalyst having a p |
| 5731407 |
Double metal cyanide complex catalysts |
March 24, 1998 |
| Improved double metal cyanide catalysts are disclosed. The substantially amorphous catalysts of the invention are more active for polymerizing epoxides than conventional DMC catalysts, which have a substantial crystalline component. Polyol products made with the catalysts are unusual |
| 5714428 |
Double metal cyanide catalysts containing functionalized polymers |
February 3, 1998 |
| Double metal cyanide (DMC) catalysts useful for epoxide polymerizations are disclosed. The catalysts comprise a DMC compound, an organic complexing agent, and from about 2 to about 80 wt. % of a functionalized polymer or a water-soluble salt derived from the polymer. The catalysts are ea |
| 5712216 |
Highly active double metal cyanide complex catalysts |
January 27, 1998 |
| Improved double metal cyanide catalysts are disclosed. The substantially amorphous catalysts of the invention are more active for polymerizing epoxides than conventional DMC catalysts, which have a substantial crystalline component. Polyol products made with the catalysts are unusual |
| 5693584 |
Highly active double metal cyanide catalysts |
December 2, 1997 |
| Improved double metal cyanide (DMC) catalysts are disclosed. The catalysts comprise a DMC compound, an organic complexing agent, from about 0.1 to about 10 wt. % of an organophosphine oxide, and optionally, a polyether. Compared with other DMC catalysts prepared in the absence of the |
| 5652329 |
Polyurethane foam-supported double metal cyanide catalysts for polyether polyol synthesis |
July 29, 1997 |
| The polymerization of epoxides such as propylene oxide to polyether polyols is conducted in the presence of a polyurethane foam-supported double metal cyanide (DMC) catalyst comprising a DMC catalyst such as zinc hexacyanocobaltate which can contain a slight excess of a metal halide |
| 5641858 |
Polyurethane foam-supported double metal cyanide catalysts for polyether polyol synthesis |
June 24, 1997 |
| A process for making an epoxide polymer comprises polymerizing an epoxide in the presence of an activated polyurethane foam-supported double metal cyanide (DMC) catalyst prepared by (a) exposing a DMC compound to an epoxide and a hydroxyl group-containing starter to activate the DMC |
| 5637673 |
Polyether-containing double metal cyanide catalysts |
June 10, 1997 |
| Improved double metal cyanide (DMC) catalysts are disclosed. The catalysts comprise a DMC compound, an organic complexing agent, and from about 5 to about 80 wt. % of a polyether polyol that has tertiary hydroxyl groups. Compared with other DMC catalysts, those of the invention have exce |
| 5627122 |
Highly active double metal cyanide complex catalysts |
May 6, 1997 |
| Highly active double metal cyanide (DMC) complex catalysts and methods for making them are disclosed. The catalysts contain less than about 0.2 moles of metal salt per mole of DMC compound in the catalyst, and unlike other highly active DMC catalysts, are substantially crystalline. Polye |
| 5627120 |
Highly active double metal cyanide catalysts |
May 6, 1997 |
| 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 weight less than about 500. The |
| 5596075 |
Polyurethane foam-supported double metal cyanide catalysts for polyol synthesis |
January 21, 1997 |
| Polyurethane foam-supported double metal cyanide (DMC) catalysts are disclosed as useful catalysts for epoxide polymerization. The foam-supported catalysts are easy to prepare, and are more active and show reduced induction periods compared with conventional powdered DMC catalysts. T |
| 5589431 |
Double metal cyanide complex catalysts |
December 31, 1996 |
| Improved double metal cyanide catalysts are disclosed. The substantially amorphous catalysts of the invention are more active for polymerizing epoxides than conventional DMC catalysts, which have a substantial crystalline component. Polyol products made with the catalysts are unusual |
| 5545601 |
Polyether-containing double metal cyanide catalysts |
August 13, 1996 |
| Improved double metal cyanide (DMC) catalysts are disclosed. The catalysts comprise a DMC compound, an organic complexing agent, and from about 5 to about 80 wt. % of a polyether polyol that has tertiary hydroxyl groups. Compared with other DMC catalysts, those of the invention have exce |
| 5536883 |
Highly active double metal cyanide catalysts and epoxide polymerization |
July 16, 1996 |
| 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 weight greater than about 500. A met |
| 5527880 |
Polyurethane foam-supported double metal cyanide catalysts for polyether polyol synthesis |
June 18, 1996 |
| Polyurethane foam-supported double metal cyanide (DMC) catalysts are disclosed as useful catalysts for epoxide polymerization. The foam-supported catalysts are easy to prepare, and are more active and show reduced induction periods compared with conventional powdered DMC catalysts. T |
| 5525565 |
Foam-supported double metal cyanide catalysts for polyol synthesis |
June 11, 1996 |
| Foam-supported double metal cyanide (DMC) catalysts are disclosed as useful catalysts for epoxide polymerization. Polyurethane foam-supported catalysts of the invention are more active and show reduced induction periods compared with conventional powdered DMC catalysts. The catalysts |
| 5523386 |
Plastic foam-supported double metal cyanide catalysts for polyether polyol synthesis |
June 4, 1996 |
| Foam-supported double metal cyanide (DMC) catalysts are disclosed as useful catalysts for epoxide polymerization. Polyurethane foam-supported catalysts of the invention are more active and show reduced induction periods compared with conventional powdered DMC catalysts. The catalysts |
| 5498583 |
Polyurethane foam-supported double metal cyanide catalysts for polyol synthesis |
March 12, 1996 |
| Polyurethane foam-supported double metal cyanide (DMC) catalysts are disclosed as useful catalysts for epoxide polymerization. The foam-supported catalysts are easy to prepare, and are more active and show reduced induction periods compared with conventional powdered DMC catalysts. T |
| 5482908 |
Highly active double metal cyanide catalysts |
January 9, 1996 |
| 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 weight greater than about 500. A met |
| 5470813 |
Double metal cyanide complex catalysts |
November 28, 1995 |
| Improved double metal cyanide catalysts are disclosed. The substantially amorphous catalysts of the invention are more active for polymerizing epoxides than conventional DMC catalysts, which have a substantial crystalline component. Polyol products made with the catalysts are unusual |
| 5426081 |
Polyurethane foam-supported double metal cyanide catalysts for polyol synthesis |
June 20, 1995 |
| Polyurethane foam-supported double metal cyanide (DMC) compounds are disclosed as useful catalysts for epoxide polymerization. The catalysts are easy to prepare, and are more active and show reduced induction periods compared with conventional powdered DMC catalysts. The catalysts of |
| 5239007 |
Oil-absorbent compositions |
August 24, 1993 |
| Oil-absorbent compositions are disclosed. The compositions are crosslinked interpolymers of an alkylated styrene and a rubber. The compositions of the invention have high absorption capacities and absorption rates compared with prior-art compositions. |
