Patents by Inventor Olaf Blochwitz

Olaf Blochwitz 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: 6455488
    Abstract: A process for making substantially odorless granules of alkyl sulfates corresponding to formula (I): R-O-SO3X (I) wherein R is an alkyl group containing from 6 to 18 carbon atoms, and X is selected from the group consisting of an alkali metal, an alkaline earth metal, ammonium, an alkyl ammonium, and alkanolammonium, and a glucammonium ion, the process involving: (a) providing a water-containing paste of alkyl sulfates having a content of unsulfonated components of greater than 0.3% by weight; and (b) simultaneously granulating and drying, in a fluidized bed, the water-containing paste of alkyl sulfates to form substantially odorless granules of alkyl sulfates, and wherein the substantially odorles granules thus formed have less than 0.2% by weight, based on the weight of active substance, of unsulfonated components present therein.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: September 24, 2002
    Assignee: Cognis Deutschland GmbH
    Inventors: Georg Assmann, Olaf Blochwitz, Andreas Syldath, Ditmar Kischkel
  • Patent number: 6362157
    Abstract: A process for making detergent granules having a bulk density above 500 g/l involving: (a) providing a fluidized bed; (b) providing an apertured inflow base located below the fluidized bed for introducing fluidization gas into the fluidized bed; (c) providing a grid interposed between the fluidized bed and the apertured inflow base, the grid having a mesh size of less than 600 &mgr;m; (d) providing a surfactant preparation in liquid to paste form; and (e) introducing the surfactant preparation into the fluidized bed to form the detergent granules.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: March 26, 2002
    Assignee: Cognis Deutschland GmbH
    Inventors: Olaf Blochwitz, Georg Assmann, Andreas Syldath, Ditmar Kischkel, Karl-Heinz Schmid