Patents by Inventor Erhard Prantz

Erhard Prantz 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 Production of Wood Material Articles with Low Emissions of Chemical Compounds
    Publication number: 20180243939
    Abstract: The invention relates to a method for production of wood material articles with low emissions of chemical compounds. The applied wood is treated with bisulfite before bonding. On using formaldehyde resins in the bonding agent, wood material articles can be produced with the inventive method with extremely low formaldehyde emissions and very bright colours.
    Type: Application
    Filed: April 25, 2018
    Publication date: August 30, 2018
    Inventors: Wolfgang Seifert, Erhard Prantz
  • Method for the Production of Wood Material Articles with Low Emissions of Chemical Compounds
    Publication number: 20170210028
    Abstract: The invention relates to a method for production of wood material articles with low emissions of chemical compounds. The applied wood is treated with bisulfite before bonding. On using formaldehyde resins in the bonding agent, wood material articles can be produced with the inventive method with extremely low formaldehyde emissions and very bright colours.
    Type: Application
    Filed: April 6, 2017
    Publication date: July 27, 2017
    Inventors: Wolfgang Seifert, Erhard Prantz
  • Method for the Production of Wood Material Articles with Low Emissions of Chemical Compounds
    Publication number: 20160311130
    Abstract: The invention relates to a method for production of wood material articles with low emissions of chemical compounds. The applied wood is treated with bisulfite before bonding. On using formaldehyde resins in the bonding agent, wood material articles can be produced with the inventive method with extremely low formaldehyde emissions and very bright colours.
    Type: Application
    Filed: July 5, 2016
    Publication date: October 27, 2016
    Inventors: Wolfgang Seifert, Erhard Prantz
  • Method for the Production of Wood Material Articles with Low Emissions of Chemical Compounds
    Publication number: 20120077908
    Abstract: The invention relates to a method for production of wood material articles with low emissions of chemical compounds. The applied wood is treated with bisulfite before bonding. On using formaldehyde resins in the bonding agent, wood material articles can be produced with the inventive method with extremely low formaldehyde emissions and very bright colours.
    Type: Application
    Filed: December 6, 2011
    Publication date: March 29, 2012
    Inventors: Wolfgang Seifert, Erhard Prantz
  • METHOD FOR PRODUCTION OF WOOD MATERIAL ARTICLES WITH LOW EMISSIONS OF CHEMICAL COMPOUNDS
    Publication number: 20090145564
    Abstract: The invention relates to a method for production of wood material articles with low emissions of chemical compounds. The applied wood is treated with bisulphite before bonding. On using formaldehyde resins in the bonding agent, wood material articles can be produced with the inventive method with extremely low formaldehyde emissions and very bright colours.
    Type: Application
    Filed: July 27, 2005
    Publication date: June 11, 2009
    Inventors: Wolfgang Seifert, Erhard Prantz
  • Modified colophony rosins, a process for their preparation, their use and paper-sizing agents containing such modified colophony rosins
    Patent number: 4540635
    Abstract: The colophony rosins which have been esterified with a tertiary amino alcohol are disclosed. These colophony rosins which are normally also reinforced with formaldehyde and/or an .alpha.,.beta.-unsaturated carbonyl compounds are useful in the form of an aqueous dispersion as a paper sizing agent. Disclosed are processes for the formation of such colophony rosins and paper sizing agents containing the same as well as papers so sized.
    Type: Grant
    Filed: March 15, 1984
    Date of Patent: September 10, 1985
    Assignee: Krems-Chemie, Gesellschaft mbH
    Inventors: Helmut Ronge, Erhard Prantz, Wolfgang Schoerkhuber