Patents by Inventor Diana Leukel-Schäfer

Diana Leukel-Schäfer 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: 20180318194
    Abstract: The present invention is related to an aqueous cleansing composition for keratin fibres, especially human hair, comprising at least two anionic surfactants comprising at least one amide group in their molecules. The first object of the present invention is an aqueous cleansing composition comprising at least two anionic surfactants comprising at least one amide group in their molecules and substantially frees of alkyl sulphate and alkyl ether sulphate surfactants. The two anionic surfactants comprising at least one amide group in their molecule is preferably selected from surfactants of the following structure wherein R1 is a saturated or unsaturated, straight or branched alkyl chain with 7 to 17 C atoms, R2 is H or a methyl, R3 is H, COO?M+, CH2COO?M or COOH, n is 0 to 2, X is COO? or SO3? and M is independent from each other H, sodium or potassium. The cleasning composition comprise furthermore amphoteric and non-ionic surfactants.
    Type: Application
    Filed: July 17, 2018
    Publication date: November 8, 2018
    Inventors: Martin HOFFMANN, Diana LEUKEL-SCHÄFER
  • Publication number: 20120171146
    Abstract: The present invention is related to an aqueous cleansing composition for keratin fibres especially human hair with shear thickening property. Specifically, present invention is on cleansing compositions for keratin fibres, especially for human hair, based on at least one anionic surfactant, especially anionic sulphate surfactant, at a concentration of 2 to 25% by weight, and further comprising at least one amino acid surfactant, and at least one ethoxylated monoglyceride.
    Type: Application
    Filed: February 15, 2012
    Publication date: July 5, 2012
    Applicant: KPSS-KAO PROFESSIONAL SALON SERVICES GMBH
    Inventors: Martin Hoffmann, Diana Leukel-Schäfer
  • Patent number: 8168576
    Abstract: The present invention is related to an aqueous cleansing composition especially for keratin fibers such as human hair with excellent volume enhancing effect. First object of the present invention is a cleansing composition for hair comprising at least one surfactant selected from anionic, non-ionic and amphoteric ones and furthermore comprising at least one ethoxylated monoglyceride according to the general formula wherein R1 is a saturated or unsaturated and branched or straight alkyl chain with a chain length of 7 to 21 C atoms and x+y+z has a value of 3 to 200 and at least one (poly)propylene glycol according to the following formula wherein n has a value between 1 and 70.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: May 1, 2012
    Assignee: KAO Germany GmbH
    Inventors: Martin Hoffmann, Diana Leukel-Schäfer
  • Publication number: 20110232668
    Abstract: The present invention is related to an aqueous cleansing composition for keratin fibres, especially human hair, comprising at least two anionic surfactants comprising at least one amide group in their molecules. The first object of the present invention is an aqueous cleansing composition comprising at least two anionic surfactants comprising at least one amide group in their molecules and substantially frees of alkyl sulphate and alkyl ether sulphate surfactants. The two anionic surfactants comprising at least one amide group in their molecule is preferably selected from surfactants of the following structure wherein R1 is a saturated or unsaturated, straight or branched alkyl chain with 7 to 17 C atoms, R2 is H or a methyl, R3 is H, COO?M+, CH2COO?M or COOH, n is 0 to 2, X is COO? or SO3? and M is independent from each other H, sodium or potassium. The cleansing composition comprise furthermore amphoteric and non-ionic surfactants.
    Type: Application
    Filed: December 9, 2009
    Publication date: September 29, 2011
    Inventors: Martin Hoffmann, Diana Leukel-Schäfer
  • Publication number: 20110126850
    Abstract: The present invention is related to an aqueous cleansing composition especially for keratin fibres such as human hair with excellent volume enhancing effect. First object of the present invention is a cleansing composition for hair comprising at least one surfactant selected from anionic, non-ionic and amphoteric ones and furthermore comprising at least one ethoxylated monoglyceride according to the general formula wherein R1 is a saturated or unsaturated and branched or straight alkyl chain with a chain length of 7 to 21 C atoms and x+y+z has a value of 3 to 200 and at least one (poly)propylene glycol according to the following formula wherein n has a value between 1 and 70.
    Type: Application
    Filed: February 10, 2011
    Publication date: June 2, 2011
    Applicant: KPSS-KAO PROFESSIONAL SALON SERVICES GMBH
    Inventors: Martin Hoffmann, Diana Leukel-Schäfer