Patents by Inventor Wolf-Dieter Willmund

Wolf-Dieter Willmund 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: 4765875
    Abstract: This invention relates to sulfonated lubricating agents for leather and furs. More specifically, this invention relates to a process for the production of sulfonated lubricating agent for leather and tanned furs consisting of the steps of:(a) sulfochlorinating higher fatty acids or esters of higher fatty acids having chain lengths of from 8 to 24 carbon atoms with chlorine and SO.sub.2 at a temperature of from about 20.degree. to 90.degree. C. under UV-radiation for a time sufficient to obtain a compound having a chlorine content of from about 5 to 30 percent by weight and a content of --SO.sub.2 Cl groups of from about 1 to 20 percent by weight, the ratio of chlorine atoms to --SO.sub.2 Cl groups being from about 0.7:1 to 70:1; and(b) forming a water-emulsifiable alkali metal, ammonium, or lower alkyl-ammonium salt of the compound produced in step (a).
    Type: Grant
    Filed: August 29, 1983
    Date of Patent: August 23, 1988
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wolf-Dieter Willmund, Jurgen Plapper, Friedrich Pieper, Jochen Heidrich
  • Patent number: 4654042
    Abstract: This invention relates to sulfonated lubricating agents for leather and furs. More specifically, this invention relates to a process for the production of sulfonated lubricating agent for leather and tanned furs consisting of the steps of:(a) sulfochlorinating higher fatty acids or esters of higher fatty acids having chain lengths of from 8 to 24 carbon atoms with chlorine and SO.sub.2 at a temperature of from about 20.degree. to 90.degree. C. under UV-radiation for a time sufficient to obtain a compound having a chlorine content of from about 5 to 30 percent by weight and a content of --SO.sub.2 Cl groups of from about 1 to 20 percent by weight, the ratio of chlorine atoms to --SO.sub.2 Cl groups being from about 0.7:1 to 70:1; and(b) forming a water-emulsifiable alkaimetal, ammonium, or lower-alkyl-ammonium salt of the compound produced in step (a).
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: March 31, 1987
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wolf-Dieter Willmund, Jurgen Plapper, Friedrich Pieper, Jochen Heidrich
  • Patent number: 4451261
    Abstract: This invention relates to a process for preparing sulfonated lubricating agents for leather and tanned furs consisting of the steps of:(a) chlorinating natural or synthetic higher fatty acids or esters of higher fatty acids having chain lengths of from 8 to 24 carbon atoms containing olefinically unsaturated fractions, up to saturation of the double bonds;(b) sulfochlorinating the chlorinated product from step (a) with chlorine and SO.sub.2 at a temperature of from about 20.degree. to 90.degree. C., optionally under UV-radiation, for a time sufficient to obtain a compound having a chlorine content of from about 5 to 30 percent by weight and a content of SO.sub.2 Cl groups of from about 1 to 20 percent by weight, the ratio of chlorine atoms to SO.sub.2 Cl groups being from about 0.7:1 to 70:1; and(c) saponifying the product from step (b) to form a water-emulsifiable alkali metal, ammonium, or lower alkyl-ammonium salt of the product of step (b).
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: May 29, 1984
    Assignee: Henkel KGaA
    Inventors: Wolf-Dieter Willmund, Manfred Biermann, Horst Baumann, Hans-Herbert Friese, Friedrich Pieper
  • Patent number: 4270987
    Abstract: This invention is directed to N-(2,3-dihydroxypropyl)-pyridinium sulfates of the formula ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, are a hydrogen atom or a methyl radical; X is the acid radical SO.sub.4.sup.= or HSO.sub.4.sup.- ; and n is 1 or 2. This invention is also directed to the preparation of these compounds and their use in acid galvanic nickel baths.
    Type: Grant
    Filed: February 27, 1980
    Date of Patent: June 2, 1981
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wolf-Dieter Willmund, Heinz Wagner
  • Patent number: 4171293
    Abstract: Aqueous dispersions of cross-linkable alkyd and/or amino resins, which contain surface active amine oxides of the formula ##STR1## wherein R.sub.1 is a hydrocarbon radical of 8 to 30 carbon atoms, which optionally contains 1 to 3 ether groups and/or up to 4 hydroxyl groups and R.sub.2 and R.sub.3 are independently an aliphatic or cycloaliphatic hydrocarbon radical of 1 to 16 carbon atoms, which optionally are interrupted by heteroatoms and/or together contain up to 8 hydroxyl groups, are useful as coating agents or varnish binding agents.
    Type: Grant
    Filed: March 14, 1978
    Date of Patent: October 16, 1979
    Assignee: Henkel Kommanditgsellschaft auf Aktien
    Inventors: Helmut Eschwey, Wolf-Dieter Willmund, Wolfgang Gress