Patents Assigned to Wella Aktiengsellschaft
  • Patent number: 5587174
    Abstract: The skin and hair treatment composition includes 0.5 to 2 percent by weight apple wax, 0.1 to 30 percent by weight of at least one anionic, cationic, amphoteric and/or nonionic surfactant, a solvent consisting of water, ethanol, propanol, isopropanol, glycols or mixtures thereof and one or more cosmetic additives selected from the group consisting of perfume oils; opacifiers; pearlescing agents; bacterial and fungicidal ingredients; coconut fatty acid diethanolamide; buffer substances; coloring materials; solubilizers; light stabilizers; antioxidants; complexing agents and antidandruff active ingredients. Methods for obtaining the apple wax used in these compositions include extraction of depectinized apple pomace with a variety of solvents and purification and evaporation of the extract to obtain an apple wax product.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: December 24, 1996
    Assignee: Wella Aktiengsellschaft
    Inventors: G unther Lang, Dieter Hoch, Eugen Konrad, Wolfram Geibel, Harald Wendel, Thomas Kripp
  • Patent number: 4835266
    Abstract: Cosmetic compositions are disclosed, for the treatment of skin or hair, with a content of new N-hydroxypropyl-chitosan derivatives, composed of (a) 4 to 40 Mol-% units of Formula (I) ##STR1## and (b) 60 to 96 Mol-% units of Formula (II) ##STR2## wherein R.sup.1 and R.sup.2 are the same or different and are each hydrogen or the group ##STR3## with n being equal to an integer from 1 to 5, with the proviso that in at least 50% of the units (II), R.sup.1 and R.sup.2 are not simultaneously hydrogen, or the salts thereof; along with new N-hydroxypropyl-chitosan derivatives and their salts as well a a process for the production of these new compounds from propylene oxide and chitosan.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: May 30, 1989
    Assignee: Wella Aktiengsellschaft
    Inventors: Gunther Lang, Gerhard Maresch, Harald Wendel, Eugen Konrad, Hans-Rudi Lenz, Jurgen Titze