Patents by Inventor Joachim Weigand

Joachim Weigand 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).

  • Use of alkylglycoside sulfosuccinates for the production of cosmetic preparations and cleaning agents
    Patent number: 5344642
    Abstract: The invention relates to alkylglycoside sulfosuccinates of the general formula (1) defined herein, useful in cosmetic preparations.
    Type: Grant
    Filed: March 4, 1993
    Date of Patent: September 6, 1994
    Assignee: REWO Chemische Werke GmbH
    Inventors: Mathias Hintz, Hans-Jurgen Kohle, Christl Moller, Thomas Salomon, Joachim Weigand
  • Ammonium compounds, preparation thereof and use thereof as cleaning agent, cosmetic raw material and softener, in particular as final-rinse fabric softner
    Patent number: 5254271
    Abstract: Ammonium compounds and the use thereof as fabric softener comprising mixtures of quaternary ammonium compounds with or without ester groups prepared by reacting amines with dimerized fatty acids and subsequent quaternization or protonation with inorganic or organic acids.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: October 19, 1993
    Assignee: Rewo Chemische Werke GmbH
    Inventors: Ingo Hamann, Elke Hohn, Hans-Jurgen Kohle, Winfried Wehner, Joachim Weigand
  • Use of alkylglycoside sulfosuccinates for the production of cosmetic preparations and cleaning agents
    Patent number: 5246695
    Abstract: The invention relates to alkylglycoside sulfosuccinates of the general formula (1) defined herein, useful in cosmetic preparations.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: September 21, 1993
    Assignee: REWO Chemische Werke GmbH
    Inventors: Mathias Hintz, Hans-Jurgen Kohle, Christl Moller, Thomas Salomon, Joachim Weigand
  • Citric acid fatty alcohol ester polyglycol ether sulfosuccinates, process for their preparation and their use
    Patent number: 5190699
    Abstract: Disclosed are citric acid fatty alcohol ester polyglycol ether sulfosuccinates of the general formula (1) ##STR1## and personal care products containing them, in which each R is the same or different and is H or -CH.sub.3 ; ##STR2## R.sup.2 is selected from the group consisting of ##STR3## acyl radicals having 8-22 carbon atoms, which radicals are optionally substituted and optionally contain one or more multiple bonds;R.sup.3 is an alkyl or acyl radical having 8-22 carbon atoms, which is optionally substituted and optionally contains multiple bonds;a and b, which are identical or different, are each 0-5, provided that the sum of (a+b) is at least 1;c is 0-15; andX.sup.+ is in each occurrence H.sup.+ or a cation.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: March 2, 1993
    Assignee: REWO Chemische Werke GmbH
    Inventors: Elke Hohn, Hans-Jurgen Kohle, Georg-Friedrich Urban, Joachim Weigand, Christl Moller
  • Fabric softener rinsing agents
    Patent number: 5180508
    Abstract: The present invention relates to a soft-rinsing agent comprising a mixture of two soft-rinsing components, each of which is a quaternary salt as described herein. The mixture may contain 10-90% of the first component and 90-10% by the second component.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: January 19, 1993
    Assignee: REWO Chemische Werke GmbH
    Inventors: Horst Birkhan, Hans-Juergen Kohle, Joachim Weigand, Winfried Wehner