Patents by Inventor Uwe Hucks

Uwe Hucks 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).

  • Method for the continuous production of aqueous dialkali salt solutions of aromatic dihydroxy compounds
    Patent number: 3960968
    Abstract: In a process for continuously producing solutions of dialkali or dialkaline earth metal salts of aromatic dihydroxy compounds, the aromatic dihydroxy compound is sprayed in the form of a melt onto a turbulent liquid film of a solution of an alkali or alkaline earth metal hydroxide. The alkali or alkaline metal hydroxide is preferably solved in water.
    Type: Grant
    Filed: June 27, 1974
    Date of Patent: June 1, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hugo Vernaleken, Ludwig Bottenbruch, Gerhard Emmer, Uwe Hucks
  • Process for the preparation of a bisphenol bischlorocarbonic acid ester
    Patent number: 3959335
    Abstract: A continuous process for the production of a bisphenol bischlorocarbonic acid ester wherein an aqueous solution of a dialkali metal salt of a hydroquinone or a bisphenol is reacted in a pump circulating system with 2.5 to 5.0 mol, per mol of dihydroxy compound of phosgene dissolved in a suitable solvent for the bischlorocarbonic acid ester formed in the reaction under the addition of an alkali metal hydroxide solution to keep the pH-value between 9.0 and 12.0, the organic phase obtained is separated wherefrom the bisphenol bischlorocarbonic acid ester is isolated by distillation and/or crystallisation.
    Type: Grant
    Filed: March 4, 1975
    Date of Patent: May 25, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hugo Vernaleken, Kurt Weirauch, Gunther Lenz, Uwe Hucks