Patents by Inventor Dieter Weinand

Dieter Weinand 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).

  • Binding agent for inorganic material powders for producing metallic and ceramic moulded bodies
    Patent number: 6939488
    Abstract: A binder B for inorganic powders comprises a mixture of b1 from 80 to 99.5% by weight of a polyoxymethlene homopolymer or copolymer B1 and b2 from 0.5 to 20% by weight of a polymer system B2 which is not miscible with B1 and comprises b21 from 5 to 100% by weight of polytetrahydrofuran B21 and b22 from 0 to 95% by weight of at least one polymer B22 of C2-8-olefins, vinylaromatic monomers, vinyl esters of aliphatic C1-8-carboxylic acids, vinyl C1-8-alkyl ethers or C1-12-alkyl (meth)acrylates.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: September 6, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Blömacher, Dieter Weinand, Hans Wohlfromm, Johan Herman Hendrik ter Maat
  • Binding agent for inorganic material powders for producing metallic and ceramic moulded bodies
    Publication number: 20030091456
    Abstract: A binder B for inorganic powders comprises a mixture of
    Type: Application
    Filed: October 17, 2002
    Publication date: May 15, 2003
    Inventors: Martin Bloemacher, Dieter Weinand, Hans Wohlfromm, Johan Herman Hendrik ter Maat
  • Production of metallic shaped bodies by injection molding
    Patent number: 5802437
    Abstract: Metallic shaped bodies are produced from an injection-molding composition comprising at least one carbonyl metal powder and at least one element powder of metals from the group Cr, Mn, V, Si, Ti or of other metals which are at least as oxidation-sensitive by shaping, removing the binder and sintering. In place of an element powder, it is also possible to use an alloy powder comprising the corresponding metals.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: September 1, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Wohlfromm, Dieter Weinand, Martin Blomacher, Manfred Schwarz, Eva-Maria Langer
  • Thermoplastic compositions for producing metallic moldings
    Patent number: 5362791
    Abstract: Thermoplastic compositions useful for producing metallic moldings containA) 40-70% by volume of a sinterable pulverulent metal or of a pulverulent metal alloy or of a mixture thereof,B) 30-60% by volume of a mixture ofB1) 50-100% by weight of a polyoxymethylene homopolymer or copolymer andB2) 0-50% by weight of a polymer which is immiscible with B1) and can be thermally removed without leaving a residue, or a mixture of such polymers,as binder, andC) 0-5% by volume of a dispersant.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: November 8, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Johan Ebenhoech, Dieter Weinand, Wolfgang Kochanek, Martin Bloemacher
  • Process for dewaxing injection molded metal pieces and for improving the properties thereof
    Patent number: 5009841
    Abstract: A process for dewaxing injection molded metal pieces consisting of a metal/binder mixture, wherein a metal oxide is added to the metal/binder mixture.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: April 23, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Bloemacher, Reinhold Schlegel, Dieter Weinand