Patents by Inventor Norbert Putz

Norbert Putz 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).

  • Process for the production of aluminium hydroxide
    Patent number: 6887454
    Abstract: Gibbsite type aluminium hydroxides are obtained by seeding a Bayer liquor with bayerite crystals. The gibbsite type aluminium hydroxide show excellent properties as fire retardant fillers in synthetic resins.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: May 3, 2005
    Assignee: Albemarle Corporation
    Inventors: Genoveva Bilandzic, Neil Brown, Norbert Putz
  • Process for the production of aluminum hydroxide
    Patent number: 6599332
    Abstract: Aluminium hydroxide of improved thermal stability is produced by spray-drying of an aqueous slurry of aluminium hydroxide at 400 to 600° C. drying gas temperature. The resulting aluminium hydroxide is suitable as a flame retardant filler in polymeric systems with high processing temperatures. It has a low specific surface area and good rheological properties.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: July 29, 2003
    Assignee: Albemarle Corporation
    Inventors: Neil Brown, Norbert Putz
  • Process for the production of aluminum hydroxide of improved thermal stability
    Publication number: 20030049198
    Abstract: Aluminium hydroxide of improved thermal stability is produced by spray-drying of an aqueous slurry of aluminium hydroxide at 400 to 600° C drying gas temperature. The resulting aluminium hydroxide is suitable as a flame retardant filler in polymeric systems with high processing temperatures. It has a low specific surface area and good rheological properties.
    Type: Application
    Filed: September 19, 2002
    Publication date: March 13, 2003
    Inventors: Neil Brown, Norbert Putz