Patents by Inventor Klaus Lorenz

Klaus Lorenz 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).

  • Publication number: 20060148976
    Abstract: A defoaming agent for cementitious compositions is provided, which has an excellent defoaming performance and does not segregate when mixed with a high performance AE water-reducing agent to form a single admixture or when diluted in water at the desired concentration, and which has excellent long term storage properties. The defoaming agent for cementitious compositions is obtained by mixing at least a polyethylene oxide derivative and a nonionic defoaming agent wherein the polyethylene oxide derivative has at one end a hydrophobic group with a branched structure and/or an unsaturated bond and at the other end an anionic group.
    Type: Application
    Filed: November 25, 2002
    Publication date: July 6, 2006
    Inventors: Klaus Lorenz, Minoru Yaguchi, Tomomi Sugiyama, Gerhard Albrecht
  • Publication number: 20060111453
    Abstract: Antifoams and/or deaerators based on oil-in-water dispersions, whose oil phase contains at least one compound from the group consisting of the alcohols of at least 12 carbon atoms, alkoxylated fatty alcohols, mono-, di- and triglycerides of fatty acids, fatty acid esters of carboxylic acids of at least 12 carbon atoms and monohydric to tetrahydric alcohols of 1 to 24 carbon atoms, hydrocarbons having a boiling point above 200° C.
    Type: Application
    Filed: July 16, 2003
    Publication date: May 25, 2006
    Inventors: Johann Bonn, Klaus Lorenz, Jorg Wehrle, Manfred Matz
  • Publication number: 20060111513
    Abstract: The invention relates to the use of plastics compositions based on mixtures of polyamide and ABS as outer layers on insulating foam for production of inliners for refrigeration equipment.
    Type: Application
    Filed: July 22, 2005
    Publication date: May 25, 2006
    Inventors: Frank Slansky, Slaven Gojsic, Volkhard Krause, Klaus Lorenz, Gerwolf Quaas
  • Publication number: 20050148473
    Abstract: The present invention relates to a compound of the formula (I) The compound according to the invention is suitable for the preparation of herbicidal active substances such as sulfonylureas.
    Type: Application
    Filed: March 7, 2005
    Publication date: July 7, 2005
    Inventors: Klaus Lorenz, Hans-Joachim Ressel, Lothar Willms
  • Patent number: 6884903
    Abstract: The present invention relates to a compound of the formula (I) The compound according to the invention is suitable for the preparation of herbicidal active substances such as sulfonylureas.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: April 26, 2005
    Assignee: Aventis CropScience GmbH
    Inventors: Klaus Lorenz, Hans-Joachim Ressel, Lothar Willms
  • Publication number: 20040176480
    Abstract: The present invention relates to novel oil-in-water dispersions which comprise
    Type: Application
    Filed: December 5, 2003
    Publication date: September 9, 2004
    Inventors: Rainer Dyllick-Brenzinger, Markus Kamieth, Johann Bonn, Manfred Matz, Klaus Lorenz
  • Publication number: 20040157737
    Abstract: The invention relates to combinations of sulfonylurea herbicides (A) and their salts 1
    Type: Application
    Filed: June 19, 2003
    Publication date: August 12, 2004
    Inventors: Lothar Willms, Hermann Bieringer, Erwin Hacker, Gerhard Schnabel, Klaus Lorenz
  • Patent number: 6737471
    Abstract: A solid and/or cellular polyurethane elastomers which are produced using polyester polyols are disclosed. The elastomers which exhibit improved stability to hydrolysis are characterized in that their preparation is carried out in the presence of at least one esters of monobasic carboxylic acid or polybasic carboxylic acids, the (first) dissociation constant (pK) of which is 0.5 to 4.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: May 18, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Lorenz, Marc Schütze, Erhard Michels, Alexander Eckhardt
  • Patent number: 6706190
    Abstract: A process for fractionating water-soluble or water-dispersible amino-containing synthetic polymers having a broad molar mass distribution by ultrafiltration, wherein the polymer solution or dispersion to be fractionated is fed continuously into an ultrafiltration circulation with at least one ultrafiltration unit, and retentate having a narrower molar mass distribution and permeate are discharged continuously, in such a way that the ultrafiltration circulation is essentially in a steady state, the polymers obtainable by this process and their use.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: March 16, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Steuerle, Hartwig Voss, Jürgen Bernbach, Jürgen Decker, Rainer Dyllick-Brenzinger, Klaus Lorenz, Hubert Meixner, Martin Rübenacker
  • Publication number: 20030208087
    Abstract: The present invention relates to a compound of the formula (I) 1
    Type: Application
    Filed: March 13, 2003
    Publication date: November 6, 2003
    Inventors: Klaus Lorenz, Hans-Joachim Ressel, Lothar Willms
  • Patent number: 6576086
    Abstract: Paper, board and cardboard are produced by draining paper stock containing interfering substances in the presence of fixing agents by a process in which the fixing agents used are reaction products which are obtainable by reacting amino- and/or ammonium-containing polymers selected from the group consisting of the polymers containing vinylamine units polyalkylene polyamines polyamidoamines ethyleneimine-grafted polyamidoamines which may be crosslinked, polydiallyldimethylammonium chlorides polymers containing dialkylaminoalkylacrylamide units or dialkylaminoalkylmethacrylamide units and polyallylamines and dicyandiamide and formaldehyde condensates with reactive sizes for paper in a weight ratio of polymer to reactive size of from 15,000:1 to 1:1, and the reaction products thus obtainable are used as fixing agents for water-soluble and for water-insoluble interfering substances in the production of paper, board and cardboard from paper stocks containing interfering substances.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: June 10, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Roland Ettl, Hubert Meixner, Anton Esser, Rainer Scholz, Norbert Mahr, Ulrich Steuerle, Matthias Höne, Klaus Lorenz
  • Patent number: 6538150
    Abstract: The present invention relates to a compound of the formula (I) The compound according to the invention is suitable for the preparation of herbicidal active substances such as sulfonylureas.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: March 25, 2003
    Assignee: Aventis CropScience GmbH
    Inventors: Klaus Lorenz, Hans-Joachim Ressel, Lothar Willms
  • Patent number: 6472447
    Abstract: The present invention relates to finely dispersed, low-viscosity polymer polyols which are stabilized in a novel manner and which are characterized by a high content of polystyrene or polystyrene copolymers. This invention also relates to the preparation of such polymer polyols, and their use for the preparation of polyurethane materials.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: October 29, 2002
    Inventors: Klaus Lorenz, Manfred Dietrich, Michael Brockelt, Uwe Scholz, Robert-Joseph Kumpf, Jürgen Grönen, Gundolf Jacobs
  • Publication number: 20020120028
    Abstract: A solid and/or cellular polyurethane elastomers which are produced using polyester polyols are disclosed. The elastomers which exhibit improved stability to hydrolysis are characterized in that their preparation is carried out in the presence of at least one disulphonates or polysulphonates.
    Type: Application
    Filed: December 14, 2001
    Publication date: August 29, 2002
    Inventors: Klaus Lorenz, Marc Schutze, Erhard Michels, Alexander Eckhardt
  • Publication number: 20020120027
    Abstract: A solid and/or cellular polyurethane elastomers which are produced using polyester polyols are disclosed. The elastomers which exhibit improved stability to hydrolysis are characterized in that their preparation is carried out in the presence of at least one esters of monobasic carboxylic acid or polybasic carboxylic acids, the (first) dissociation constant (pK) of which is 0.5 to 4.
    Type: Application
    Filed: December 14, 2001
    Publication date: August 29, 2002
    Inventors: Klaus Lorenz, Marc Schutze, Erhard Michels, Alexander Eckhardt
  • Patent number: 6410483
    Abstract: Compounds of the formula (I) and salts thereof in which R1-R9, W and A are as defined in formula (I) of claim 1 are suitable as herbicides and plant growth regulators. They can be prepared by processes according to claim 5 via intermediates according to claim 9, some of which are novel.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: June 25, 2002
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Klaus Lorenz, Lothar Willms, Klaus Bauer, Hermann Bieringer, Christopher Rosinger
  • Publication number: 20020062029
    Abstract: The present invention relates to a compound of the formula (I) 1
    Type: Application
    Filed: July 20, 2001
    Publication date: May 23, 2002
    Inventors: Klaus Lorenz, Hans-Joachim Ressel, Lothar Willms
  • Patent number: 6239306
    Abstract: Compounds of the formula (I) and their salts as defined in claim 1, in which R1 is CO—Q—R8, where R8=H or R R2 and R3 are H or (C1-C4)alkyl, R4 is H, R, RO, OH, RCO, RSO2, PhSO2 R5 is RSO2, PhSO2, PhCO, RNHSO2, R2NSO2, RCO, CHO, COCOR′, CW—T—R9, CW—NR10R11, CW—N(R12)2 or R4 and R5 together are the chain (CH2)mB or —B1—(CH2)m1B— where B=SO2, m=3, 4; m1=2, 3; T and W=O, S; Q=O, S, NR13 where R13=H, R; R6=H, R, RO, RCO, ROCO, Hal, NO2, CN; R7=H, CH3; R9=R; R10, R11=H, R; N(R12)2=heterocycle A=pyrimidinyl and triazinyl radical or an analog thereof, where R=(substituted) aliphatic hydrocarbon radical, are suitable as selective herbicides. They are prepared by analogous processes via sulfonamides, some of which are new, of the formula (II) (see claim 4).
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: May 29, 2001
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Klaus Lorenz, Lothar Willms, Klaus Bauer, Hermann Bieringer
  • Patent number: 6221809
    Abstract: Herbicidal composition, comprising A) at least, one compound from the group of the substituted phenylsulfonylureas of the formula I and agriculturally acceptable salts thereof and B) at least one herbicidally active compound selected from the group of the compounds consisting of Ba) herbicides which have selective activity against grasses in cereals,. Bb) herbicides which have selective activity against dicotyledons in cereals, Bc) herbicides which have selective activity against grasses and dicotyledons in cereals and Bd) herbicides which are active against weed grasses and broad-leaved weeds and which are nonselective in non-crop areas or perennial crops (plantations) and/or selective in transgenic crops.
    Type: Grant
    Filed: October 11, 1999
    Date of Patent: April 24, 2001
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Erwin Hacker, Hermann Bieringer, Klaus Lorenz
  • Patent number: 6069114
    Abstract: Compounds of the formula (I) and their salts ##STR1## in which R.sup.1 to R.sup.6, Y.sup.1, to Y.sup.2, Y.sup.3, m and n are as defined in claim 1 are suitable as herbicides and plant growth regulators. They can be prepared analogously to known processes using intermediates of the formula (V) (cf. claim 6).
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: May 30, 2000
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Klaus Lorenz, Klemens Minn, Lothar Willms, Klaus Bauer, Hermann Bieringer, Christopher Rosinger