Patents by Inventor Jan P. Mulder

Jan P. Mulder 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).

  • Compositions comprising hexafluorophosphates and metals as structure refiner for aluminium-silicon alloys
    Patent number: 5066323
    Abstract: Hexafluorophosphates may be used as structure refiner during solidification of molten aluminium-silicon alloys. The structure refining effect is obtained almost immediately after addition of the hexafluorophosphate to the molten alloy. The hexafluorophosphates are preferably used in the form of a master composition wherein as diluents metals are used, especially copper.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: November 19, 1991
    Assignee: Shell Internationale Research Maatschappij B.V.
    Inventor: Jan P. Mulder
  • Aluminium-strontium master alloy
    Patent number: 5045110
    Abstract: A process is described for the preparation of an aluminium-strontium master alloy suitable for use as structure refiner during the solidification of molten aluminium-silicon alloys, comprising atomizing a molten alloy containing 3 to 30% by weight of strontium, the balance being aluminium, quick cooling of the atomized droplets to obtain solid particles and consolidation of the obtained solid particles.
    Type: Grant
    Filed: May 21, 1990
    Date of Patent: September 3, 1991
    Assignee: Shell Research Limited
    Inventors: Mattheus Vader, Jan Noordegraaf, Edward H. Klein Nagelvoort, Jan P. Mulder