Patents by Inventor Volker Bollert

Volker Bollert 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: 4466838
    Abstract: A pressurized carrier mixture for aerosol preparations of a self-propelling spray system, for use as a universal spray based on the active ingredients to be applied, organic solvents, water and propellants in a spray container. The carrier mixture is present as a homogeneous solution containing: 70.0-50.1 percent by weight of water; 38.5-28.7 percent by weight of dimethyl ether; 0.5-10.0 percent by weight of isopropanol and/or ethanol and/or n-propanol; and 1.4-0.8 percent by weight of carbon dioxide.
    Type: Grant
    Filed: May 31, 1983
    Date of Patent: August 21, 1984
    Assignee: Hans Schwarzkopf GmbH
    Inventors: Dieter Heeb, Gunter Bechmann, Uwe Bergemann, Volker Bollert, Claus-Dieter Frenzel
  • Patent number: 4322037
    Abstract: An aerosol can having a super-fine atomization valve, a process for its manufacture, and a process for introducing a filling which contains a propellant into the can. The can imparts a suitable fine division of droplets to the propellant medium which is to be sprayed. The can is suitable for the spraying of homogeneous mediums which do not contain chlorofluorinated hydrocarbons or hydrocarbon propellant gases.
    Type: Grant
    Filed: November 14, 1979
    Date of Patent: March 30, 1982
    Assignee: Hans Schwarzkopf GmbH
    Inventors: Dieter Heeb, Gunter Bechmann, Uwe Bergemann, Volker Bollert, Claus-Dieter Frenzel
  • Patent number: 3996153
    Abstract: A propellant composition which can be sprayed from a compressed gas container comprises a solvent or mixture of solvents having a vaporization number of about 1 to about 15 and a gaseous propellant absorption capacity of about 1 to about 15 weight percent at 20.degree. C. The solvent or mixture of solvents has a substantial portion of a gaseous propellant dissolved therein. The gaseous propellant is carbon dioxide. The propellant composition is suitable for use in compressed gas containers such as those employed with hairsprays, deodorant sprays, room sprays, etc.
    Type: Grant
    Filed: May 22, 1974
    Date of Patent: December 7, 1976
    Assignee: Hans Schwarzkopf GmbH
    Inventors: Dieter Heeb, Volker Bollert