Patents by Inventor Rolf Kawa

Rolf Kawa 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: 6562778
    Abstract: Solubilizates containing a water-insoluble substance, an aqueous phase and a solubilizer, wherein the solubilizer comprises (i) an alk(en)yl oligoglycoside; and (ii) a polyol component, are described. Methods of solubilizing water-insoluble substances with combinations of alk(en)yl oligoglycosides and polyol components are also described.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: May 13, 2003
    Assignee: Cognis Deutschland GmbH
    Inventors: Achim Ansmann, Rolf Kawa, Holger Tesmann, Guido Baumoeller
  • Patent number: 6562876
    Abstract: A process for cold-producing an oil-in-water emulsion having enhanced consistency and tactile properties involving: (a) providing an oil component; (b) providing an aqueous wax dispersion containing: (i) a wax component; and (ii) an emulsifier; (c) providing water; and (d) cold-stirring (a)-(c) to form the emulsion.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: May 13, 2003
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Achim Ansmann, Nicole Mertscheit, Rolf Kawa
  • Publication number: 20020148583
    Abstract: A tissue paper penetrated with a lotion composition being a liquid, viscous W/O emulsion includes
    Type: Application
    Filed: January 22, 2002
    Publication date: October 17, 2002
    Inventors: Guido Baumoller, Rolf Kawa, Stephan Eichhorn
  • Publication number: 20020146561
    Abstract: A fibrous web, in particular tissue web treated with a lotion composition based on an O/W emulsion comprising: (A) at least one oil; (B) an (O/W) emulsifier or (O/W) emulsifier combination; and (C) 6 to 30 weight % of water; wherein the weight % values relate to the total weight of the lotion composition. Since in the above lotion composition the external phase is aqueous, a web treated therewith can easily be wet by water and does not float on the water if it is to be disposed in a toilet.
    Type: Application
    Filed: January 22, 2002
    Publication date: October 10, 2002
    Inventors: Guido Baumoller, Rolf Kawa, Stephan Eichhorn, Roland Sporer
  • Patent number: 6432419
    Abstract: A cosmetic or pharmaceutical composition free of silicone wherein the composition contains a fatty compound comprising an oil selected from the group consisting of (a) dialkyl ethers, (b) dialkyl cyclohexanes, (c) Guerbet alcohols, (d) polyol polyhydroxystearates, and (e) hydroxycarboxylic acid esters.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: August 13, 2002
    Assignee: Cognis Deutschland GmbH
    Inventors: Joerg Kahre, Achim Ansmann, Bernd Fabry, Rolf Kawa, Werner Seipel
  • Patent number: 6306916
    Abstract: The invention concerns pearly luster concentrates in the form of an aqueous dispersion having between 10 and 40 wt % pearly luster-forming components and between 15 and 55 wt % emulsifiers. The concentrates contain as emulsifiers alkylpolyglycosides of general formula (I), RO—(Z)x, in which R stands for a C6 to C22 alkyl group, Z stands for a mono or oligosaccharide, x is a number from 1.1 to 5, or their addition products with 1 to 10 molecules ethylene oxide and/or propylene oxide. The concentrates are characterized by a Newtonian flow behaviour when they are free of emulsifiers with —COO—and —OSO3 —groups, such that these concentrates are considerably easier to handle.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: October 23, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Achim Ansmann, Rolf Kawa, Gabriele Strauss
  • Patent number: 6280712
    Abstract: A process for enhancing the effectiveness of a sunscreen lotion containing at least one ultraviolet filter involving solubilizing/dispersing the ultraviolet filter in a dialkyl/alkenyl carbonate.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: August 28, 2001
    Assignee: Cognis Deutschland GmbH
    Inventors: Achim Ansmann, Helga Gondek, Rolf Kawa, Holger Tesmann
  • Patent number: 6264961
    Abstract: The invention relates to new liquid and readily pumpable o/w emulsifiers containing a1) alkyl and/or alkenyl oligoglycosides, a2) fatty acid N-alkyl polyhydroxyalkylamides and/or a3) acyl glutamates and b) polyol polyhydroxystearates, with the proviso that the ratio by weight of a) to b) is in the range from 90:10 to 10:90.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: July 24, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Achim Ansmann, Rolf Kawa, Helga Gondek, Josef Koester, Annette Kreisig
  • Publication number: 20010006652
    Abstract: A cosmetic or pharmaceutical composition free of silicone wherein the composition contains a fatty compound comprising an oil selected from the group consisting of
    Type: Application
    Filed: February 4, 1999
    Publication date: July 5, 2001
    Inventors: JOERG KAHRE, ACHIM ANSMANN, BERND FABRY, ROLF KAWA, WERNER SEIPEL
  • Patent number: 6235702
    Abstract: A concentrated aqueous pearlescent composition containing: (a) from 1 to 99.9% by weight of an ester formed by reacting a hydroxy-functionalized carboxylic acid with a fatty alcohol containing from 6 to 22 carbon atoms; (b) from 0.1 to 90% by weight of an emulsifier selected from the group consisting of an anionic surfactant, a nonionic surfactant, a cationic surfactant, an ampholytic surfactant, a zwitterionic surfactant, an esterquat, and mixtures thereof; and (c) up to 40% by weight of a polyol, all weights being based on the total weight of the composition.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: May 22, 2001
    Assignee: Henkel Kommaditgesellschaft auf Aktien
    Inventors: Achim Ansmann, Rolf Kawa, Stefan Podubrin, Alfred Westfechtel
  • Patent number: 6228831
    Abstract: A pearlescent concentrate containing: (a) from 1 to 99.9% by weight of a fatty compound selected from the group consisting of a fatty alcohol, a fatty ketone, a fatty ether, a fatty carbonate, and mixtures thereof, wherein the fatty compound contains at least 18 carbon atoms; (b) from 0.1 to 90% by weight of an emulsifier component selected from the group consisting of an anionic surfactant, a nonionic surfactant, a cationic surfactant, an ampholytic surfactant, a zwitterionic surfactant, and mixtures thereof; and (c) up to 40% by weight of a polyol, all weights being based on the total weight of the concentrate.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: May 8, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Achim Ansmann, Rolf Kawa
  • Patent number: 6210659
    Abstract: A pearlescent concentrate containing: (a) from 30 to 80% by weight of an alkyl ether sulfatef; (b) from 5 to 20% by weight of a surfactant selected from the group consisting of a betaine, an alkyl and/or alkenyl oligoglycoside, and mixtures thereof; and (c) from 1 to 10% by weight of an (oligo)ethylene glycol mono- and/or difatty acid ester, all weights being based on the total weight of the composition, and wherein the concentrate is polyol-free.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: April 3, 2001
    Assignees: Henkel Kommanditgesellschaft auf Aktien, Wella Aktiengesellschaft Wella AG
    Inventors: Josef Wilhelm, Rudolf Bimczok, Werner Kohl, Achim Ansmann, Rolf Kawa
  • Patent number: 6147124
    Abstract: A free-flowing pearlescer concentrate is presented which is composed of: (a) 5 to 50% by weight of a pearlescing component which is (1) a compound of formula R.sup.3 --(OC.sub.n H.sub.2n).sub.x --OR.sup.4 where R.sup.3 is a fatty acyl group having 14 to 22 carbon atoms, R.sup.4 is hydrogen or linear fatty acyl group having 14 to 22 carbon atoms, n is 2 or 3, and x is 1; (2) a compound of formula R.sub.5 --CO--NH--X, where R.sup.5 is an alkyl group having 8 to 22 carbon atoms and X is selected from the group --CH.sub.2 --CH.sub.2 --OH, --CH.sub.2 --CH.sub.2 --CH.sub.2 --OH, and --C(CH.sub.3).sub.2 --OH; and a linear saturated fatty acid having 12 to 14 carbon atoms; (b) 5 to 55% by weight of a fatty acid-N-alkyl polyhydroxyalkylamide nonionic emulsifier of the formula ##STR1## as the sole emulsifier, where R.sup.1 --CO is an aliphatic acyl group having 6 to 22 carbon atoms, R.sup.2 is an alkyl or hydroxyalkyl group having 1 to 4 carbon atoms, and R.sup.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: November 14, 2000
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Achim Ansmann, Rolf Kawa, Helga Gondek
  • Patent number: 6121331
    Abstract: A concentrated aqueous pearlescent composition containing: (a) from 1 to 99.9% by weight of a ring-opening reaction product of an olefin epoxide containing from 12 to 22 carbon atoms and a reaction component selected from the group consisting of a fatty alcohol having from 12 to 22 carbon atoms, a polyol having from 2 to 15 carbon atoms and 2 to 10 hydroxyl groups, and mixtures thereof; (b) from 0.1 to 90% by weight of an emulsifier selected from the group consisting of an anionic surfactant, a nonionic surfactant, a cationic surfactant, an ampholytic surfactant, a zwitterionic surfactant, an esterquat, and mixtures thereof; and (c) up to 40% by weight of a polyol, all weights being based on the total weight of the composition.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: September 19, 2000
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Achim Ansmann, Rolf Kawa
  • Patent number: 5939081
    Abstract: A process for thickening a water-in-oil and oil-in-water emulsion involving adding to the emulsion a thickening agent consisting of an alkyl or alkenyl oligoglucoside ester formed by esterifying an alkyl or alkenyl oligoglycoside corresponding to formula I:R.sup.1 O--?G!.sub.p (I)wherein R.sup.1 is an alkyl or alkenyl oligoglucoside containing from about 4 to about 22 carbon atoms, G is a sugar unit containing from 5 to 6 carbon atoms, and p is a number having a value of from 1 to about 10, with a fatty acid corresponding to formula II:R.sup.2 CO--OH (II)wherein R.sup.2 CO is an aliphatic acyl radical containing from about 6 to about 22 carbon atoms, and up to about 3 double bonds.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: August 17, 1999
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Achim Ansmann, Rolf Kawa, Annette Kreisig, Norman Milstein
  • Patent number: 5902590
    Abstract: A cosmetic or pharmaceutical composition containing an emulsifier comprising an ester of palmitic acid and technical grade triglycerol with the proviso that the monoester content of the ester is from 30% to 50% by weight.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: May 11, 1999
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Heike Thomas, Achim Ansmann, Rolf Kawa, Armin Wadle, Reinhard Bunte, Udo Hees, Alfred Westfechtel
  • Patent number: 5863461
    Abstract: Water-in-oil emulsions of preferably polar oils are prepared by adding as emulsifiers or stabilizers 0.1 to 10% to weight, relative to the oil phase, of block polyesters of the general formula (I) R.sup.1 CO--(OR.sup.2 CO)y--(OC.sub.2 H.sub.4)--O--(COR.sup.2 O)z--COR.sup.1, in which R.sup.1 CO is an acyl group with 1-22 C-atoms or a hydroxyacyl group derived from a fatty acid with 16-22 C-atoms or a hydroxyacyl group (OR.sup.2 CO) derived from a fatty acid with 16-22 C-atoms, x is a number from 5 to 150 and y and z are numbers from 2 to 75, the group (OC.sub.2 H.sub.4) x making up 10 to 20% by weight of the total molecular weight.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: January 26, 1999
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Achim Ansmann, Joachim Conradi, Rolf Kawa, Ludwig Schieferstein
  • Patent number: 5840943
    Abstract: A process for making a polyglycerol polyhydroxystearate comprising esterifying a polyhydroxystearic acid having a degree of self-condensation of from 2 to 20 with a polyglycerol component, the polyglycerol component consisting of: (a) from 5 to 30% by weight of a glycerol; (b) from 15 to 40% by weight of a diglycerol; (c) from 10 to 30% by weight of a triglycerol; (d) from 5 to 20% by weight of a tetraglycerol; (e) from 2 to 10% by weight of a pentaglycerol; and (f) remainder, up to 100%, of an oligoglycerol.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: November 24, 1998
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Achim Ansmann, Rolf Kawa, Rainer Von Kries, Gabriele Strauss
  • Patent number: 5795978
    Abstract: Emulsifiers particularly suitable for the production of storable, high-viscosity and sensorially light o/w emulsions contain from about 43% to about 99% by weight of an alkyl and/or alkenyl oligoglycoside and from about 1% to about 57% by weight of a fatty alcohol.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: August 18, 1998
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Achim Ansmann, Rolf Kawa, Michael Nitsche, Helga Gondek
  • Patent number: 5736581
    Abstract: Disclosed are novel polyglycerine polyricinoleates as emulsifiers obtained by the esterification of polyricinoleic acid with a natural condensation rate of from 2 to 10 with a polyglycerine mixture comprising 5-35 wt. % glycerine, 15-40 wt. % diglycerines, 10-30 wt. % triglycerines, 8-20 wt. % tetraglycerines, and 3-10 wt. % pentaglycerines, and the remainder being oligoglycerines. The materials have improved emulsifying capacity.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: April 7, 1998
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Achim Ansmann, Rolf Kawa, Helga Gondek, Gabriele Strauss, Rainer Von Kries