Patents by Inventor Günther Weicker

Günther Weicker 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).

  • Polyurethane based binder system for the manufacture of foundry cores and molds
    Patent number: 6772820
    Abstract: A cold-box process for preparing a foundry shape, e.g. mold or core, that uses a binder comprising a phenolic resin component and an isocyanate component, wherein the phenolic resin component comprises (a) an alkoxy-modified phenolic resole resin and (b) an oxygen-rich polar, organic solvent component, which contains a fatty acid ester.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: August 10, 2004
    Assignee: Ashland Inc.
    Inventors: Jean-Claude Roze, Günther Weicker, Diether Koch, Andreas Werner
  • Polyurethane based binder system for the manufacture of foundry cores and molds
    Publication number: 20040132861
    Abstract: A cold-box process for preparing a foundry shape, e.g. mold or core, that uses a binder comprising a phenolic resin component and an isocyanate component, wherein the phenolic resin component comprises (a) an alkoxy-modified phenolic resole resin and (b) an oxygen-rich polar, organic solvent component, which contains a fatty acid ester.
    Type: Application
    Filed: September 12, 2003
    Publication date: July 8, 2004
    Applicant: Ashland Inc.
    Inventors: Jean-Claude Roze, Gunther Weicker, Diether Koch, Andreas Werner
  • Polyurethane based binder system for the manufacture of foundry cores and molds
    Publication number: 20040006155
    Abstract: This invention relates to a binder system comprising a phenolic resin component and an isocyanate component where the phenolic resin component comprises an alkoxy-modified phenolic resole resin such that less than 25 mole percent of the phenolic hydroxyl groups of the phenolic resole resin are etherified by a primary or secondary aliphatic monoalcohol.
    Type: Application
    Filed: June 26, 2003
    Publication date: January 8, 2004
    Applicant: Ashland Sudchemie Kernfest
    Inventors: Jean-Claude Roze, Gunther Weicker, Diether Koch, Andreas Werner