Patents by Inventor Xianping Wang

Xianping Wang 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).

  • Binders containing an epoxy resin, an ester of a fatty acid, and a fluorinated acid
    Publication number: 20050020725
    Abstract: This invention relates to foundry binder systems, which cure in the presence of sulfur dioxide and an oxidizing agent, comprising (a) an epoxy resin; (b) an ester of a fatty acid; (c) a fluorinated acid, preferably hydrofluoric acid; (d) an effective amount of a oxidizing agent; and (e) no ethylenically unsaturated monomer or polymer. The foundry binder systems are used for making foundry mixes. The foundry mixes are used to make foundry shapes (such as cores and molds) which are used to make metal castings, particularly ferrous castings.
    Type: Application
    Filed: July 25, 2003
    Publication date: January 27, 2005
    Inventors: Xianping Wang, H. Shriver, Jorg Kroker
  • Acrylate-free binders containing an epoxy resin and an alkyl silicate
    Publication number: 20050020727
    Abstract: This invention relates to foundry binder systems, which cure in the presence of sulfur dioxide and an oxidizing agent, comprising (a) an epoxy resin; (b) an alkyl silicate; (c) an ester of a fatty acid, (d) an effective amount of a oxidizing agent, and (e) no ethylenically unsaturated monomer or polymer. The foundry binder systems are used for making foundry mixes. The foundry mixes are used to make foundry shapes (such as cores and molds) which are used to make metal castings, particularly ferrous castings.
    Type: Application
    Filed: July 25, 2003
    Publication date: January 27, 2005
    Inventors: H. Shriver, Xianping Wang, Jorg Kroker