Patents by Inventor Walter Klink

Walter Klink 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).

  • Preparation of glutaraldehyde
    Patent number: 5600018
    Abstract: A process for preparing glutaraldehyde by reaction of alkoxydihydropyrans of the general formula I ##STR1## where R is C.sub.1 -C.sub.20 -alkoxy, with water at from 0.degree. to 150.degree. C. and from 0.01 to 50 bar in the presence of a catalyst consisting essentially of a bleaching earth.
    Type: Grant
    Filed: August 7, 1995
    Date of Patent: February 4, 1997
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Becker, Wolfgang Friedrich, Walter Klink, Juergen Schossig, Andreas Henne
  • Preparation of pourable choline chloride/silica powders
    Patent number: 4775540
    Abstract: A process for the preparation of pourable choline chloride/silica powders by mixing silica with choline chloride and, where appropriate, drying this mixture, wherein spray-dried or fluidized bed-dried silica which has a particle size of from 30 to 250 .mu.m is mixed with an aqueous choline chloride solution which contains from 70 to 80% by weight, based on the solution, of choline chloride and is at from 40.degree. to 80.degree. C., thereafter from 0.05 to 0.4% by weight, based on the mixture, of magnesium stearate or calcium stearate is added and, if appropriate, the resulting mixture is dried.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: October 4, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Otto Hertel, Gerhard Jeschek, Walter Klink, Wolfgang Koernig, Theodor Weber, Fritz Rateike