Patents by Inventor Gerhard Turznik

Gerhard Turznik 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).

  • Flame-proofed polystyrene foamed materials
    Patent number: 6420442
    Abstract: Flame-retardant foam slabs are based on styrene polymers wherein from 1 to 12% by weight of expanded graphite and also, if desired, from 1 to 12% by weight of a phosphorus compound are present as flame retardants.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: July 16, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz-Josef Dietzen, Guiscard Glück, Gerd Ehrmann, Gerhard Turznik, Gerhard Alicke, Klaus Hahn, Martin Klatt, Karlheinz Braun
  • Melamine resin moldings having increased elasticity
    Patent number: 5162487
    Abstract: Moldings, in particular foams and fibers, based on melamine/formaldehyde condensation products, in which from 0.1 to 70 mol % of the melamine have been replaced by melamine substituted by from 1 to 3 hydroxyoxaalkyl groups of the formula--(CH.sub.2 --CH.sub.2 --O).sub.n --CH.sub.2 --CH.sub.2 --OHn=1-5)have increased elasticity.
    Type: Grant
    Filed: August 13, 1991
    Date of Patent: November 10, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Weiser, Wolfgang Reuther, Gerhard Turznik, Wolfgang Fath, Heinz Berbner, Onno Graalmann
  • Melamine resin moldings having increased elasticity
    Patent number: 5084488
    Abstract: Moldings, in particular foams and fibers, based on melamine/formaldehyde condensation products, in which from 0.1 to 70 mol% of the melamine have been replaced by melamine substituted by from 1 to 3 hydroxyoxaalkyl groups of the formula--(CH.sub.2 --CH.sub.2 --O).sub.n --CH.sub.2 --CH.sub.2 --OH (n=1-5)have increased elasticity.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: January 28, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Weiser, Wolfgang Reuther, Gerhard Turznik, Wolfgang Fath, Heinz Berbner, Onno Graalmann
  • Foam composite and manufacture thereof
    Patent number: 4885206
    Abstract: A flexible foam composite of high flame resistance consists of one or more layers of a flexible melamine resin foam from 4 to 25 g/l in density and one or more layers of a flexible polyimide foam from 8 to 40 g/l in density.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: December 5, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Onno Graalmann, Guenter Kreibiehl, Gerhard Turznik, Heinz Weber
  • Preparation of resilient melamine foams
    Patent number: 4666948
    Abstract: Resilient foams based on melamine resins are prepared by foaming an aqueous solution which contains a melamine/formaldehyde precondensate, an emulsifier, a volatile blowing agent and a curing agent and then curing the foam. In this process, from 0.2 to 4% by weight of an alkali metal, alkaline earth metal or aluminum salt of an organic, preferably polybasic acid, of a polyphosphoric acid or of a boron acid are added to the aqueous solution.
    Type: Grant
    Filed: September 24, 1986
    Date of Patent: May 19, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Frank P. Woerner, Peter Neumann, Harald Mahnke, Josef Lamprecht, Dieter Horn, Gerhard Turznik, Friedrich Kraus, Hanshelmut Kaeppel, Eduard Heim
  • Stabilized melamine resin foams
    Patent number: 4530940
    Abstract: Stabilized melamine resin foams contain, as a stabilizer, a copper or iron compound in an amount corresponding to from 10 ppm to 3%, based on the weight of the melamine resin, of Cu or Fe, preferably an oxide, hydroxide or carbonate of copper.
    Type: Grant
    Filed: June 28, 1984
    Date of Patent: July 23, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Frank P. Woerner, Horst Reimann, Harald Mahnke, Peter Neumann, Gerhard Turznik, Hanshelmut Kaeppel