Patents by Inventor Hans-Christian Raths

Hans-Christian Raths 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: 5599476
    Abstract: Water containing detergent mixtures contain an alkyl and/or alkenyl polyglycoside and an anionic or nonionic surfactant selected from the group consisting of: (a) a narrow range fatty alcohol polyglycol ether, (b) a narrow range fatty alcohol ether sulfate, (c) a fatty acid alkanolamide ether sulfate, and (d) a monoglyceryl ether sulfate are superior detergents for dishwashing formulations and for cosmetics.
    Type: Grant
    Filed: September 1, 1995
    Date of Patent: February 4, 1997
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Ansgar Behler, Brigitte Giesen, Hans-Christian Raths, Harald P. Wulff
  • Patent number: 5539135
    Abstract: Hydrophobicized double-layer hydroxide compounds may be produced if double-layer hydroxide compounds of the general formula (I): [M.sup.(II).sub.1-x M.sup.(III).sub.x (OH).sub.2 ] A.sub.x.n H.sub.2 O, in which M.sup.(II) is a divalent metal cation, M.sup.(III) is a trivalent metal cation, A is an equivalent of a monobasic and/or multibasic inorganic acid, x is a number from 0.2 to 0.5 and n is a number from 0 to 10, are reacted at elevated temperature and under autogenous pressure with at least one carboxylic acid or its salt and the reaction product is then dried. The hydrophobicized double-layer hydroxide compounds obtained by this process are suitable as catalysts for the alkoxylation of compounds with active hydrogen atoms or of fatty acid esters.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: July 23, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wolfgang Breuer, Claudia Mai, Hans-Christian Raths, Elvira Scholz
  • Patent number: 5523432
    Abstract: Quaternary ammonium salts of fatty acid hydroxyalkanesulfonic acids are made by reacting a hydroxyalkanesulfonic acid of the formula (I):HO--(C.sub.n H.sub.2n)--SO.sub.3 H (I):wherein n=2 to 4 with a fatty acid having from 6 to 18 carbon atoms at a temperature range of from about 60.degree. C. to about 120.degree. C. and at a reduced pressure followed b reaction with an amine in an organic solvent.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: June 4, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Hans-Christian Raths, Rainer Rueben, Manfred Biermann, Timothy J. Cassady
  • Patent number: 5514368
    Abstract: The invention is a process for hydrophilicizing a mixture of triglycerides and glycerol by ethoxylation of the mixture followed by sulfonation with sulfur trioxide and neutralization.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: May 7, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Frank Wangemann, Hans-Christian Raths, Rudolf Zauns-Huber
  • Patent number: 5489395
    Abstract: Water containing detergent mixtures contain an alkyl and/or alkenyl polyglycoside and an anionic or nonionic surfactant selected from the group consisting of: (a) a narrow range fatty alcohol polyglycol ether, (b) a narrow range fatty alcohol ether sulfate, (c) a fatty acid alkanolamide ether sulfate, and (d) a monoglyceryl ether sulfate are superior detergents for dishwashing formulations and for cosmetics.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: February 6, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Ansgar Behler, Brigitte Giesen, Hans-Christian Raths, Harald P. Wulff
  • Patent number: 5473089
    Abstract: Ammonium fatty acid hydroxyalkanesulfonates are made by a process in which (a) ammonium hydroxyalkanesulfonate corresponding to general formula (I):HO--(C.sub.n H.sub.2n)--SO.sub.3 NH.sub.4 (I)wherein n=2 to 4, is subjected to the esterification reaction with a fatty acid corresponding to the formula (II)R--COOH (II)wherein RCO is an aliphatic, linear or branched acyl radical containing 6 to 18 carbon atoms, in the presence of an esterification catalyst, characterized in that (a) before the esterification reaction, the starting compounds corresponding to formulae (I) and (II) are dried at a temperature of 120.degree. C. to 160.degree. C. and under a pressure of 100 to 700 mbar; (b) the esterification reaction is carried out at a temperature above 160.degree. C. to 195.degree. C. and under a pressure of 250 mbar to atmospheric pressure; (c) water of solution and water of reaction formed are directly removed from the reaction mixture; (d) the catalyst is neutralized with a base on completion of the reaction.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: December 5, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Bernhard Gutsche, Timothy J. Cassady, Lutz Jeromin, Gerhard Wollmann, Norman Milstein, Hans-Christian Raths
  • Patent number: 5441156
    Abstract: Minerals can be recovered by flotation from non-sulfidic ores by using detergent mixtures containing:a) salts of sulfonation products of unsaturated fatty acids corresponding formula (I):R.sup.1 C(O)--OH (I)in which R.sup.1 CO is a linear or branched aliphatic acyl radical containing 12 to 24 carbon atoms and 1 to 5 double bonds, andb) salts of sulfonation products of unsaturated fatty acid glycerol esters corresponding to formula (II): ##STR1## in which R.sup.2 C(O) is a linear or branched aliphatic acyl radical containing 12 to 24 carbon atoms and 1 to 5 double bonds and R.sup.3 C(O) and R.sup.4 C(O) independently of one another represent a linear or branched aliphatic acyl radical containing 6 to 24 carbon atoms and 0 or 1 to 5 double bonds,and, optionally, other anionic and/or nonionic surfactants, as collectors.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: August 15, 1995
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Bernd Fabry, Rita Koester, Hans-Christian Raths, Frank Wangemann, Heinz Mueller
  • Patent number: 5362479
    Abstract: Oral hygiene and dental care compositions which contain an alkyl ether sulfate mixture corresponding to formula IR.sup.1 --O--(C.sub.2 H.sub.4 O).sub.x --SO.sub.3 M (I)in which R.sup.1 is a linear alkyl group containing 12 to 18 carbon atoms, M is an alkali metal or magnesium ion, and x has an average value of 2 to 10, and wherein at least 50% by weight of the mixture consists of homologs with x-1 to x+1 glycol ether groups, and the content of alkyl sulfates in which x=0 is below 10% by weight.The invention also relates to dry powders containing the above alkyl ether sulfate mixture.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: November 8, 1994
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Willi Breitzke, Holger Tesmann, Karl-Heinz Gantke, Hans-Christian Raths
  • Patent number: 5326891
    Abstract: Novel hydrophobicized double-layer hydroxide compounds, processes for their production by reaction of double-layer hydroxides with aliphatic mono- and/or dicarboxylic acids, and their uses as alkoxylation catalysts for compounds containing active H atoms or for fatty acid esters.The hydrophobicized double-layer hydroxide compounds correspond to formula (I)(M(II).sub.1-x M(III).sub.x (OH).sub.2)A.sub.a B.sub.b * z H.sub.2 O (I)in whichM(II) is a divalent metal cation selected from the group consisting of magnesium, zinc, calcium, iron, cobalt, copper, cadmium, nickel and manganese;M(III) is a trivalent metal cation selected from the group consisting of aluminum, iron, chromium, manganese, bismuth and cerium;A is an equivalent of a monoanion of an aliphatic C.sub.2-34 monocarboxylic acid or an equivalent of a dianion of an aliphatic C.sub.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: July 5, 1994
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wolfgang Breuer, Hans-Christian Raths
  • Patent number: 5292910
    Abstract: A process for the catalyzed ethoxylation or propoxylation of compounds selected from the group consisting of organic compounds containing active H atoms, esters of fatty acids containing 2 to 22 carbon atoms with monoalkanols containing 1-22 carbon atoms with polyols containing 2 to 12 carbon atoms and 2 to 6 hydroxyl groups, wherein the improvement comprises the use as catalyst for the ethoxylation or propoxylation of hydrophobicized hydrotalcites corresponding to the general formula I:Mg.sub.x Al(OH).sub.y (CO.sub.3).sub.m (A).sub.n.zH.sub.2 O (I),in which A is selected from the group consisting of (i) a dianion of an aliphatic dicarboxylic acid containing 4 to 44 carbon atoms and (ii) two anions of aliphatic monocarboxylic acids containing 2 to 34 carbon atoms; 1<x<5; y.ltoreq.2x+2; {y+2(m+n)}=2x+3; m+n.ltoreq.0.5; m.gtoreq.0; and 0<z<10.
    Type: Grant
    Filed: December 2, 1992
    Date of Patent: March 8, 1994
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Hans-Christian Raths, Wolfgang Breuer, Klaus Friedrich, Klaus Herrmann