Patents by Inventor Helmut Dillenburg

Helmut Dillenburg 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: 20050276897
    Abstract: Ultra-dry calcium carbonate particles, a method for drying calcium carbonate particles and also the use of the resulting dried calcium carbonate as a flow property regulating agent in sealing compounds or adhesive compositions. The calcium carbonate particles are dried with microwaves. The drying can take place in a continuous belt apparatus, a batch treatment apparatus or a rotary-tube apparatus, and calcium carbonate particles having a degree of dryness of 0 to 0.1% H2O can be obtained.
    Type: Application
    Filed: June 10, 2005
    Publication date: December 15, 2005
    Applicant: Solvay Chemicals
    Inventors: Christoph Nover, Helmut Dillenburg
  • Patent number: 6500400
    Abstract: A process comprising introducing CO2 into milk of lime, in which the milk of lime is first ground, and then the CO2 is introduced to precipitate the calcium carbonate.
    Type: Grant
    Filed: January 3, 2000
    Date of Patent: December 31, 2002
    Assignee: Solvay Soda Deutschland GmbH
    Inventors: Andreas Kinnen, Helmut Dillenburg, Kurt Schinninger, Christoph Nover
  • Publication number: 20020172636
    Abstract: A process for continuously producing precipitated calcium carbonate having a controllable particle diameter, in which nucleation and crystal growth are carried out in separate phases or phases. The size of the calcium carbonate particles is determined and/or controlled by the concentration of the calcium hydroxide suspension and by the ratio of CO2 introduced to the volume of Ca(OH)2 suspension as early as in the nucleation phase.
    Type: Application
    Filed: March 11, 2002
    Publication date: November 21, 2002
    Inventors: Christoph Nover, Helmut Dillenburg
  • Publication number: 20020164280
    Abstract: A process for the preparation of precipitated calcium carbonate by introducing CO2 into milk of lime, in which the milk of lime is first ground, and then the CO2 is introduced to precipitate the calcium carbonate.
    Type: Application
    Filed: April 17, 2002
    Publication date: November 7, 2002
    Applicant: Solvay Soda Deutschland GmbH
    Inventors: Andreas Kinnen, Helmut Dillenburg, Kurt Schinninger, Christoph Nover
  • Patent number: 6342100
    Abstract: Bimolecular coated calcium carbonate and a process for controlled surface treatment of calcium carbonate according to which an amount of coating determined from the mean particle diameter (dp) of the calcium carbonate is contacted with the calcium carbonate particles. The way in which the amount of coating agent is determined enables purposeful control of the properties of the coated calcium carbonate particles to adapt them for use as functional filling materials in different technical applications.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: January 29, 2002
    Assignee: Solvay Soda Deutschland GmbH
    Inventors: Christoph Nover, Helmut Dillenburg
  • Patent number: 5904944
    Abstract: The invention relates to the use of polyglycerols in the manufacture of foods, in particular for influencing texture formation, water absorption capacity, freshness, inhibition of crystallization, protein denaturation and the improvement of the freeze and thaw stability and for fat replacement.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: May 18, 1999
    Assignee: Solvay Alkali GmbH
    Inventors: Winfried Battermann, Wolfgang Dilla, Helmut Dillenburg
  • Patent number: 5648067
    Abstract: Cosmetic deodorants, characterized by an active content of monocarboxylic acid esters of di- and/or triglycerol.
    Type: Grant
    Filed: August 17, 1995
    Date of Patent: July 15, 1997
    Assignees: Beiersdorf Aktiengesellschaft, Solvay Fluor und Derivate GmbH
    Inventors: Helmut Dillenburg, Gerald Jakobson, Winfried Klein, Werner Siemanowski, Karlheinz Uhlig, Florian Wolf
  • Patent number: 5478472
    Abstract: A method for treating waste water which contains organic and inorganic compounds, particularly waste water from the synthesis of epichlorohydrins, in which the waste water is subjected toa) thermal-alkaline treatment,b) biological treatment, andc) optionally to chemical-oxidative treatment.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: December 26, 1995
    Assignee: Solvay Deutschland GmbH
    Inventors: Wolfgang Dilla, Helmut Dillenburg, Hans-Georg Krebber, Erich Ploenissen
  • Patent number: 5445741
    Abstract: The present invention relates to a process for decreasing the content of organic-chemical substances in waste water by chemical oxidation, preferably in the presence of chlorine, and optionally additional alkaline thermal treatment of the waste water, in which the waste water, which has a COD content (chemical oxygen demand) and is alkaline or is rendered alkaline, is introduced into at least one reactor and is treated at a temperature of more than 15.degree. C. with a chlorine-containing and/or chlorine-releasing chemical substance, the introduction of chlorine taking place in a quantity of more than 1 g chlorine/g COD (relative to the chlorine content of the chlorine-containing and/or chlorine-releasing chemical substance), and a molar ratio of OH.sup.- to chlorine of more than 1.5 and a pH value of the waste water of .gtoreq.5 being maintained or set, and the resulting chlorine-treated, hypochlorite-containing waste water is subjected to a reaction time of more than 0.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: August 29, 1995
    Assignee: Solvay Deutschland GmbH
    Inventors: Wolfgang Dilla, Helmut Dillenburg, Michael Klumpe, Hans-Georg Krebber, Horst Linke, Detlef Orzol, Erich Ploenissen
  • Patent number: 5393428
    Abstract: A process for treating waste water containing chlorinated organic substances, particularly waste water from production of epichlorohydrin which contains more than 10 mg of adsorbable organic halogen compounds (AOX) per liter, comprising charging the waste water at a pH of 10 to 14 (measured at room temperature) into a reactor and maintaining a temperature of at least 75.degree.C., a pressure of at least 1 bar (abs.), and a residence time of at least 0.5 hours in said reactor, thereby partially dechlorinating and/or dehydrochlorinating chlorinated organic compounds contained in the waste water, and thereafter subjecting the waste water to further dechlorination and/or dehydrochlorination treatment in the presence of a hydrogen-containing gas, a hydrogen-releasing compound and/or a catalytically active material; and optionally subjecting the waste water to a biological treatment with the use of microorganisms; and apparatus for carrying out the foregoing process.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: February 28, 1995
    Assignee: Solvay Deutschland GmbH
    Inventors: Wolfgang Dilla, Helmut Dillenburg, Erich Ploenissen, Michael Sell
  • Patent number: 5243086
    Abstract: A process for the preparation of a composition containing diglycerol, in which process at least a stoichiometric amount of isopropylideneglycerol is reacted with .alpha.-monochlorohydrin in the presence of at least one alkaline compound at sufficient temperatures to yield an intermediate product composition containing monoisopropylidenediglycerol and a salt. Most of the salt and water formed is removed from the intermediate product composition, and any unreacted isopropylideneglycerol is removed by distillation. The remaining intermediate product composition containing monoisopropylidenediglycerol is subsequently reacted with water in the presence of at least one acidic catalyst at sufficient temperatures to yield a product composition containing diglycerol and acetone and substantially no cyclic glycerols.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: September 7, 1993
    Assignee: Deutsche Solvay-Werke
    Inventors: Gerald Jakobson, Werner Siemanowski, Helmut Dillenburg
  • Patent number: 4427644
    Abstract: Disclosed is a continuous process for the production of bivalent metal peroxides, comprising the steps of introducing into an intensive mixing apparatus a solid, anhydrous or hydrated oxide or hydroxide of a bivalent metal; simultaneously introducing into the intensive mixing apparatus a solution of hydrogen peroxide, whereby the solid bivalent metal compound and the peroxide are intensively mixed and react to produce a reaction mixture containing bivalent metal peroxide; transporting the reaction mixture directly to a rapid dryer; and rapidly drying the reaction mixture to produce the bivalent metal peroxide in solid form.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: January 24, 1984
    Assignee: Peroxid-Chemie GmbH
    Inventors: Werner Doetsch, Helmut Dillenburg, Paul-Wilhelm Fuchs, Helmut Honig
  • Patent number: 4179394
    Abstract: A process for improving the storage behavior of alkali persalts in particularly alkali percarbonates, by preparing a granulate composition therefore is disclosed. The process comprises the steps of:(a) granulating an alkali persalt, wherein the alkali cation is an alkali metal cation or ammonium and which is selected from the group consisting of solid addition-products of an alkali salt with hydrogen peroxide and alkali salts of peroxo-acids in the presence of a sodium phosphate which is selected of sodium polyphosphates and sodium phyrophosphate and of water, and(b) drying the resulting granulate.
    Type: Grant
    Filed: January 10, 1978
    Date of Patent: December 18, 1979
    Assignee: Peroxid-Chemie GmbH
    Inventors: Helmut Dillenburg, Werner Doetsch, Rudolf Siegel
  • Patent number: 4117087
    Abstract: Stabilized crystalline sodium percarbonate is prepared by reacting a soda solution or suspension, which has a pH value of between 10 and 11 and contains an amount of a soluble silicate, e.g., sodium waterglass, which is equivalent to from about 0.2 to about 0.9% of SiO.sub.2 relative to the sodium percarbonate, with a hydrogen peroxide solution which contains a heavy metal complexing agent, allowing to crystallize at least 50% of the sodium percarbonate and then adding to the resulting suspension a second amount of a water soluble silicate which is equivalent to from about 0.2 to about 0.8% of SiO.sub.2 relative to the sodium percarbonate and is sufficient to provide a silicate content in the final product equivalent to 0.5 to 1.5% of SiO.sub.2.
    Type: Grant
    Filed: May 17, 1977
    Date of Patent: September 26, 1978
    Assignee: Peroxid-Chemie GmbH.
    Inventors: Helmut Dillenburg, Wilhelm Moser, Robert Jones