Patents by Inventor Peter Pyka

Peter Pyka 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).

  • Phosphoric esters as extreme pressure additives
    Patent number: 6103675
    Abstract: The invention relates to the use of mixtures of one or more phosphoric esters of the formula (I) with one or more amines of the formula (II) as extreme pressure additives in water-immiscible cooling lubricants ##STR1## in which the substituents have the meaning defined in the description.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: August 15, 2000
    Assignee: Clariant GmbH
    Inventors: Peter Pyka, Barbara Vollnhals, Bernd Pomrehn
  • Process and molding compound for producing inorganic sintered products by injection molding
    Patent number: 5417756
    Abstract: In a ceramic or powder metallurgical molding compound which contains waxes as binder, the addition of an ethylene-vinyl acetate copolymer, an organic peroxide, an azo ester and an alcohol in combination with an extraction with a solvent leads to an improvement in the dimensional stability and the dewaxing of injection-molded shaped parts.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: May 23, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Michael Bayer, Peter Pyka, Heike Wagner