Patents by Inventor Volker Paulat

Volker Paulat 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: 6120561
    Abstract: Process for the preparation of low-salt liquid dyestuff preparations, characterized in that they are obtained by:a) diazotization of an aromatic amine,b) 2-fold coupling of the diazo component obtained according to a) to I-acid-urea, in the presence of an inorganic base and in the absence of an organic base,c) desalination and, if appropriate, concentration by means of a pressure permeation of the reaction mixture obtained according to b), so that an inorganic salt content of less than 1% by weight is achieved.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: September 19, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Wild, Volker Paulat, Wolfgang Frank, Shaun Murphree
  • Patent number: 4929705
    Abstract: New polyisocyanate-polyaddition compounds, a process for their preparation and their use as wetting or dispersing agents for the incorporation of solids, in particular pigments, in lacquer or synthetic resin formulation.
    Type: Grant
    Filed: March 28, 1989
    Date of Patent: May 29, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jan Mazanek, Ulrich von Gizycki, Hanns P. Muller, Martin Wienkenhover, Karl-Heinz Wieser, Volker Paulat, Werner Theuer, Walter Muller
  • Patent number: 4909853
    Abstract: Pigment preparations which contain an organic pigment and/or carbon black and a surfactant from the sulphosuccinic acid ester and/or alkylbenzenesulphonate series and which have been dried, if appropriate after wet comminution, by spray- or freeze-drying from an aqueous medium, and the use of these preparations for pigmenting high molecular weight organic material, in particular thermoplastics.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: March 20, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Martin Wienkenhover, Volker Paulat, Wolfgang Karnath, Hans Schulze, Karlheinz Wolf, Karl-Heinz Wieser
  • Patent number: 4564632
    Abstract: The invention relates to insecticidal and acaricidal agents which contain water-insoluble active compounds and water-soluble oxyalkylation products of compounds prepared by adding styrenes onto phenols or naphthols, and which form a colloidal solution when diluted with water, and to their use.
    Type: Grant
    Filed: November 25, 1981
    Date of Patent: January 14, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Konrad Nonn, Karlheinz Wolf, Johannes Haas, Volker Paulat
  • Patent number: 4443225
    Abstract: The lyotropic, liquid-crystalline, aqueous phase of a reactive dyestuff of the formula ##STR1## wherein M.sym. represents H.sym. or an alkali metal cation (preferably Na.sym., K.sym. or Li.sym.) andR is a fibre-reactive groupingpresent in water at room temperature in a concentration of 10-25%, if appropriate in the presence of concentration-increasing additives and/or buffer substances, is highly suitable for preparing dyebaths and print pastes for application to natural and synthetic substrates, in particular cotton, wool, regenerated cellulose, paper and leather.
    Type: Grant
    Filed: November 23, 1982
    Date of Patent: April 17, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Wolff, Karlheinz Wolf, Jochen Koll, Reinhold Hornle, Hans-Heinz Molls, Volker Paulat
  • Patent number: 4309182
    Abstract: Liquid finished formulations which are stable to storage and hydrolysis and are based on the lyotropic liquid crystal aqueous phase of the dyestuff of the formula ##STR1## which is present in water in a concentration of 23-35% at room temperature, are outstandingly suitable for the preparation of dyebaths and printing pastes for dyeing cotton, wool, regenerated cellulose, paper and leather.
    Type: Grant
    Filed: November 19, 1980
    Date of Patent: January 5, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jochen Koll, Volker Paulat, Reinhold Hornle, Hans-Heinz Molls, Konrad Nonn
  • Patent number: 4309183
    Abstract: Liquid finished formulations which are stable to storage and hydrolysis and are based on the lyotropic liquid crystal aqueous phase of the dyestuff of the formula ##STR1## in water in a concentration of 12-35% at room temperature are outstandingly suitable for the preparation of dyebaths and printing pastes for dyeing cotton, wool, regenerated cellulose, paper and leather.
    Type: Grant
    Filed: November 19, 1980
    Date of Patent: January 5, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jochen Koll, Volker Paulat, Reinhold Hornle, Hans-Heinz Molls, Konrad Nonn