Patents by Inventor Ingeborg Lange

Ingeborg Lange 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: 4098714
    Abstract: Disclosed is a process for preparing a water softening composition which comprises the steps of:(a) applying to finely divided solid carrier particles of an inorganic material selected, e.g., from the group consisting of aluminosilicates having an Al.sub.2 O.sub.3 content of from 1 to 75% by mole, kieselguhr, a silicic acid composition containing 67 mole % of SiO.sub.2, 1 mole % of Al.sub.2 O.sub.3 and 278 mole % of H.sub.2 O, a silica gel containing 12.24% of SiO.sub.2, 7.35% of N.sub.2 SO.sub.4, 0.41% of Na.sub.2 O and 80% of H.sub.2 O, aluminum oxide, alumina hydrate, bentonite and sodium sulfate, a solution of sodium aluminate having a concentration of from about 0.2% to 25% by weight and a molar ratio Na.sub.2 O/Al.sub.2 O.sub.3 of from about 0.3 to 47, in an amount which is sufficient to coat the particles with an outside layer of sodium aluminate amounting from about 0.5 to about 50% by weight of the particles; and, (b) drying the coated particles at a temperature of from about 20.degree. to 120.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: July 4, 1978
    Assignee: Kali-Chemie AG
    Inventors: Helmut Derleth, Maria Hansen, Ingeborg Lange, Artur Kurs