Patents by Inventor Michael Röper

Michael Röper has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6852661
    Abstract: A catalyst comprising at least one complex of a metal of transition group VIII comprising at least one monodentate, bidentate or multidentate phosphinamidite ligand in which the phosphorus atom and the oxygen atom of the phosphinamidite group form part of a 5- to 8-membered heterocycle can be used for the hydroformylation and hydrocyanation of compounds containing at least one ethylenically unsaturated double bond. The phosphinamidite ligand is, for example, represented by the following formulae wherein represents an optionally substituted 5- to 8-membered heterocycle wherein A represents carbon ring members; represents an optionally substituted N-bonded heterocycle wherein (Het) indicates optional ring heteroatoms in addition to the N; and B is a carbon-carbon single bond or a divalent bridging group.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: February 8, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Ahlers, Heiko Maas, Michael Röper
  • Patent number: 6849769
    Abstract: Essentially monounsaturated polyalkylenes having from 30 to 700 carbon atoms are continuously hydroformylated by a process in which i) a hydroformylation-active cobalt carbonyl catalyst is prepared from a catalyst precursor dissolved in an aqueous phase in the absence of the polyalkylenes, ii) the polyalkylenes are hydroformylated by means of synthesis gas in the presence of the cobalt carbonyl catalyst in a reaction zone, iii) the cobalt carbonyl catalyst is separated from the output from the reaction zone with at least partial reformation of the catalyst precursor and the catalyst precursor is recirculated to step i).
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: February 1, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Röper, Heinrich-Josef Blankertz, Armin Volker Grenacher, Roland Krokoszinski, Willi Schönmann
  • Patent number: 6844463
    Abstract: Process for the carbonylation of n-pentenoic acid or its derivatives of the formula (I) C4H7—R1??(I) where R1 is —CN or COOR2 where R2 is hydrogen, alkyl or aryl by reaction of a compound of the formula (I) with carbon monoxide and a compound (II) containing a hydroxyl group in the presence of a catalyst system, wherein the catalyst system is obtainable by reaction of a) a source for a metal ion of a metal (III) of the 8th subgroup of the Periodic Table of the Elements with b) a bidentate phosphine ligand of the formula (IV) (R3R4R5C)(R6R7R8C)P-L1-X-L2-P(CR9R10R11) (CR12R13R14)??(IV) where R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14 independently of one another is an organic radical which in each case contains a carbon atom, via which the respective radical is linked to the relevant tertiary carbon atom mentioned in formula (IV); L1, L2 independently of one another are a lower alkylene group; X is an arylene group.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: January 18, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Slany, Martin Schäfer, Michael Röper
  • Publication number: 20050010067
    Abstract: A process is described for preparing acid formates in which methyl formate is reacted with water and a basic compound having a pKa of the conjugate acid of the corresponding dissociation state of ?3 measured at 25° C. in aqueous solution, the methanol formed is separated off and, optionally, the desired acid content is set by adding formic acid.
    Type: Application
    Filed: October 29, 2002
    Publication date: January 13, 2005
    Inventors: Michael Slany, Martin Schafer, Jorn Karl, Michael Roper
  • Publication number: 20040249216
    Abstract: A system comprising a diphosphine of the formula
    Type: Application
    Filed: April 1, 2004
    Publication date: December 9, 2004
    Inventors: Xavier Sava, Michael Slany, Michael Roper
  • Publication number: 20040186325
    Abstract: The invention describes a process for the preparation of novel surfactant alcohols and surfactant alcohol ethers by derivatization of olefins having from about 10 to 20 carbon atoms or of mixtures of such olefins to give alkanols, and optional subsequent alkoxylation, which comprises
    Type: Application
    Filed: January 29, 2004
    Publication date: September 23, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Heiko Maas, Michael Roper, Marc Walter, Ralf Schulz, Jurgen Tropsch, Hans-Ulrich Jager, Peter Schwab, Michael Schulz
  • Patent number: 6765119
    Abstract: The invention relates to a process for the preparation of saturated C3-C20-alcohols in which a liquid hydrogenation feed comprising at least one C3-C20-aldehyde is passed over a bed of a hydrogenation catalyst in the presence of a hydrogen-containing gas, which comprises adding to the hydrogenation feed an amount, homogeneously soluble therein, of a salt-like base. The addition of base suppresses side reactions, such as acetalization, aldolization, Tischtschenko reaction or ether formation.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: July 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Herwig Hoffmann, Michael Röper, Heinrich-Josef Blankertz, Max Strohmeyer, Helmut Walz, Helmut Zinke-Allmang
  • Publication number: 20040138512
    Abstract: The invention relates to a method for the production of propene from a mixture (M1) essentially consisting of the following: ethylene (component E); hexenes (components H); optionally olefinic hydrocarbons (components K1a) different from ethylene and hexenes and optionally other inert hydrocarbons (components K1b). According to said method, the mixture (M1) is brought into contact with a metathesis catalyst at a temperature of 20 to 350° C., with the proviso that, as regards mixture (M1): the molar proportion of the sum consisting of 2-hexene and 3-hexene in components H is at least 4:1 to 99:1; the molar ratio between component E and the sum of components H and K1a is 1:1 to 100:1; the ratio between 2-hexenes and 3-hexenes is at least 2:1 as long as the 3-hexenes contained in the mixture are not simultaneously subjected to isomerization by means of which the proportion of 2-hexenes is correspondingly increased.
    Type: Application
    Filed: October 9, 2003
    Publication date: July 15, 2004
    Inventors: Michael Roper, Jurgen Stephan, Gotz-Peter Schindler
  • Publication number: 20040110989
    Abstract: The invention relates to a method for the carbonylation of n-pentenoic acid or derivatives thereof of formula (I), wherein R1 represents CN or COOR2 and R2 represents hydrogen, alkyl or aryl. According to said method, a compound of formula (I) is reacted with carbon monoxide and a compound (II) containing a hydroxyl group in the presence of a catalyst system. The method is characterised in that the catalyst system is obtained by reacting a) a source of a metallic ion of a metal (III) of the 8th subgroup of the periodic table with b) a bidentate phosphine ligand of formula (IV), wherein R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13 and R14 independently of one another represent an inorganic group, which contains a respective carbon atom, by means of which the respective group is linked to the relevant tertiary carbon atom given in formula (IV), L1, L2 represent independently of one another a lower alkylene group and X represents an arylene group.
    Type: Application
    Filed: May 29, 2003
    Publication date: June 10, 2004
    Inventors: Michael Slany, Martin Schafer, Michael Roper
  • Publication number: 20040106512
    Abstract: The invention relates to phosphacyclohexanes of general formulae I and II, wherein the following designations, among others, apply: R can represent hydrogen, C1-100-alkyl, C7-20-aralkyl, C7-20-alkaryl, and C6-12-aryl: R1 to R10 can independently represent hydrogen, C1-20-alkyl, C7-20-aralkyl, C7-20-alkaryl, and C6-12-aryl: W, W′ can independently represent single bonds or bridges comprising 1 to 20 carbon atoms, which can form part of a cyclic or aromatic group and can be interrupted by heteroatoms. Said phosphacyclohexanes are used as ligands in transition metal complexes of transition metals belonging to groups VIII to X of the periodic table.
    Type: Application
    Filed: December 18, 2002
    Publication date: June 3, 2004
    Inventors: Thomas Mackewitz, Wolfgang Ahlers, Edgar Zeller, Michael Roper, Rocco Paciello, Rainer Papp, Konrad Knoll, Hartwig Voss
  • Patent number: 6737553
    Abstract: The invention describes a process for the preparation of novel surfactant alcohols and surfactant alcohol ethers by derivatization of olefins having from about 10 to 20 carbon atoms or of mixtures of such olefins to give alkanols, and optional subsequent alkoxylation, which comprises subjecting a C4-olefin mixture to metathesis, dimerizing the resulting olefins, and then derivatizing them to give surfactant alcohols, and optionally alkoxylating said alcohols. The olefin mixture obtained in the dimerization has a high proportion of branched components and less than 10% by weight of compounds which contain a vinylidene group. The invention further describes the use of the surfactant alcohols and surfactant alcohol ethers to give surfactants by glycosylation or polyglycosylation, sulfation or phosphation.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: May 18, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Heiko Maas, Michael Röper, Marc Walter, Ralf Schulz, Jürgen Tropsch, Hans-Ulrich Jäger, Peter Schwab, Michael Schulz
  • Patent number: 6723882
    Abstract: Dialkyl ketones are prepared by reductive carbonylation of &agr;-olefins by means of carbon monoxide and hydrogen in the presence of a catalyst system comprising (a) palladium or a palladium compound; (b) a phosphine; (c) a protic acid having a pKa of ≦4.5, measured in aqueous solution at 25° C.; and (d) a solubilizable carboxamide.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: April 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Slany, Martin Schäfer, Michael Röper
  • Publication number: 20040059157
    Abstract: The invention relates to a compound of formula (I) wherein X represents a low alkylen group, an arylene group or an alkarylene group, L1 has formula (II) wherein Y1 represents oxygen, sulphur or N—R17, R11, R12, R13, R14, R15, R16, R17 independently represent hydrogen, alkyl or aryl, L2 has formula (III) wherein Y2 represents oxygen, sulphur or N—R27, R21, R22, R23, R24, R25, R26, R27 independently represent hydrogen, alkyl or aryl wherein L1 and L2 can be identical or different. The inventive compound is suitable for use as a catalyst or for producing a catalyst system.
    Type: Application
    Filed: August 6, 2003
    Publication date: March 25, 2004
    Inventors: Michael Slany, Martin Schafer, Michael Roper
  • Publication number: 20040015024
    Abstract: Essentially monounsaturated polyalkylenes having from 30 to 700 carbon atoms are continuously hydroformylated by a process in which i) a hydroformylation-active cobalt carbonyl catalyst is prepared from a catalyst precursor dissolved in an aqueous phase in the absence of the polyalkylenes, ii) the polyalkylenes are hydroformylated by means of synthesis gas in the presence of the cobalt carbonyl catalyst in a reaction zone, iii) the cobalt carbonyl catalyst is separated from the output from the reaction zone with at least partial reformation of the catalyst precursor and the catalyst precursor is recirculated to step i).
    Type: Application
    Filed: March 5, 2003
    Publication date: January 22, 2004
    Inventors: Michael Roper, Heinrich-Josef Blankertz, Armin Volker Grenacher, Roland Krokoszinski, Willi Schonmann
  • Publication number: 20040010161
    Abstract: The invention relates to a process for the preparation of alkylarylsulfonates by
    Type: Application
    Filed: February 10, 2003
    Publication date: January 15, 2004
    Inventors: Heiko Maas, Thomas Narbeshuber, Michael Roper
  • Publication number: 20040001701
    Abstract: A method of recording a broadcast signal includes accessing a host server by an intermediary communication unit. The host server includes a database of broadcast program information. The method includes selecting one or more program(s) from the database, using said intermediary communication unit transmitting information relating to a selected program from the host server to the intermediary communication unit, where the programming information is extracted. At least one control signal is generated and transmitted from the intermediary communication unit to a broadcast signal recorder to set the recorder to record the selected broadcast program. As all the user is required to do is to select a required broadcast program, for example a broadcast television program, from a list, the likelihood of the user entering information or commands incorrectly is greatly reduced. Furthermore, the user does not necessarily need to obtain and enter any codes relating to such information.
    Type: Application
    Filed: May 16, 2003
    Publication date: January 1, 2004
    Applicant: Sendo International Limited
    Inventor: Michael Roper
  • Publication number: 20030195357
    Abstract: In the ruthenium complexes of the general formula A or B, 1
    Type: Application
    Filed: February 11, 2003
    Publication date: October 16, 2003
    Inventors: Wolfram Stuer, Jorn Karl, Michael Roper, Stefan Jung, Justin Wolf, Helmut Werner
  • Publication number: 20030114720
    Abstract: The invention relates to a process for the preparation of saturated C3-C20-alcohols in which a liquid hydrogenation feed comprising at least one C3-C20-aldehyde is passed over a bed of a hydrogenation catalyst in the presence of a hydrogen-containing gas, which comprises adding to the hydrogenation feed an amount, homogeneously soluble therein, of a salt-like base. The addition of base suppresses side reactions, such as acetalization, aldolization, Tischtschenko reaction or ether formation.
    Type: Application
    Filed: November 14, 2002
    Publication date: June 19, 2003
    Inventors: Herwig Hoffmann, Michael Roper, Heinrich-Josef Blankertz, Max Strohmeyer, Helmut Walz, Helmut Zinke-Allmang
  • Patent number: 6566566
    Abstract: The invention describes a process for the preparation of surfactant alcohols and surfactant alcohol ethers which are, inter alia, highly suitable as surfactants or for the preparation of surfactants. The process, starting from olefin mixtures which comprise less than 30% by weight of linear hexene isomers and utilizing a catalyst which contains nickel, prepares olefin mixtures having a predominant fraction of branched dodecenes, which are subsequently derivatized to give surfactant alcohols and then optionally alkoxylated. The invention further relates to the use of the surfactant alcohols and surfactant alcohol ethers for the preparation of surfactants by glycosidation or polyglycosidation, sulfation or phosphation.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: May 20, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Heiko Maas, Michael Röper, Marc Walter, Ralf Schulz, Jürgen Tropsch, Hans-Ulrich Jäger
  • Publication number: 20030069450
    Abstract: Dialkyl ketones are prepared by reductive carbonylation of &agr;-olefins by means of carbon monoxide and hydrogen in the presence of a catalyst system comprising
    Type: Application
    Filed: July 18, 2002
    Publication date: April 10, 2003
    Inventors: Michael Slany, Martin Schafer, Michael Roper