Patents by Inventor Kurt Niehaves

Kurt Niehaves 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).

  • Alkaline baths containing alkene sulfonates as wetting agents
    Patent number: 4217106
    Abstract: The mercerizing of cellulose fibers is improved by using an aqueous alkaline bath composition having as a wetting agent alkali salts of alkene sulfonic acids having 6 to 10 carbon atoms and single or double branched structures in a concentration of about 1 to 5 grams per liter of bath composition.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: August 12, 1980
    Assignee: Chemische Werke Huls A.G.
    Inventors: Wolfgang Schneider, Ferdinand Von Praun, Kurt Niehaves
  • Method for the production of aqueous, finely dispersed, shelf-stable silicone oil emulsions
    Patent number: 4194988
    Abstract: Method for the preparation of aqueous, finely dispersed, shelf-stable silicone oil emulsions with the use of emulsifiers. Dimethyl polysiloxanes and 0.1-0.3 part by weight of emulsifiers, based on the dimethyl polysiloxanes, of a monoester or diester of orthophosphoric acid or mixtures thereof, are mixed, with agitation at temperatures of between 20.degree. and 150.degree. C. until a clear solution is obtained; thereupon an organic base or alkali is added up to neutralization; and subsequently the neutralized mixture is diluted with water.The monoesters and diesters of orthophosphoric acid and mixtures thereof comprising the emulsifiers are prepared by the reaction of:(a) 1-n-octanol or 1-n-octenol with P.sub.2 O.sub.
    Type: Grant
    Filed: May 23, 1978
    Date of Patent: March 25, 1980
    Assignee: Chemische Werke Huls AG
    Inventors: Wolfgang Schneider, Kurt Niehaves