Patents by Inventor Marvin Michael Martens

Marvin Michael Martens 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).

  • Flame-retardant polyamide compositions
    Patent number: 6774174
    Abstract: This invention deals with the development of improved SMT performance flame retardant polyamide compositions. The compositions include replacing the poly bromostyrene or brominated polystyrene with a copolymer of a halostyrene and glycidyl(meth)acrylate. The resulting composition results in greatly improved blistering performance in Surface Mounting Technology Applications.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: August 10, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Marvin Michael Martens, Reiko Koshida, Jennifer L. Bohan, William Ray Fielding
  • Flame-retardant polyamide compositions
    Publication number: 20020103281
    Abstract: This invention deals with the development of improved SMT performance flame retardant polyamide compositions. The compositions include replacing the poly bromostyrene or brominated polystyrene with a copolymer of a halostyrene and glycidyl (meth) acrylate. The resulting composition results in greatly improved blistering performance in Surface Mounting Technology Applications.
    Type: Application
    Filed: September 21, 2001
    Publication date: August 1, 2002
    Inventors: Marvin Michael Martens, Reiko Koshida, Jennifer L. Bohan, William Ray Fielding
  • Thermally stable flame retardant polyamides
    Patent number: 6350802
    Abstract: Certain polyamide molding compositions are disclosed having improved flame resistance and heat stability. These compositions comprise in weight percent, 20-78% polyamide having a melting point of 280-340° C.; 10-60% inorganic filler; 10-35% flame retardant (brominated or chlorinated); 1-10% antimony compound; 1-10% of one or more oxides, hydroxides, or salts of weak mineral acids, and combinations thereof; and 0-2% heat stabilizer.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: February 26, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Marvin Michael Martens, Reiko Koshida, Wendy Tobin, Jocelyn M. Willis
  • THERMALLY STABLE FLAME RETARDANT POLYAMIDES
    Publication number: 20010056145
    Abstract: Certain polyamide molding compositions are disclosed having improved flame resistance and heat stability. These compositions comprise in weight percent, 20-78% polyamide having a melting point of 280-340° C.; 10-60% inorganic filler; 10-35% flame retardant (brominated or chlorinated); 1-10% antimony compound; 1-10% of one or more oxides, hydroxides, or salts of weak mineral acids, and combinations thereof; and 0-2% heat stabilizer.
    Type: Application
    Filed: March 17, 1999
    Publication date: December 27, 2001
    Inventors: MARVIN MICHAEL MARTENS, REIKO KOSHIDA, WENDY TOBIN
  • Fire resistant polyamide compositions
    Patent number: 5691404
    Abstract: Disclosed herein are compositions containing an aliphatic polyamide, a selected tungstic acid or its salt, and a coagent such as melamine cyanurate. These compositions exhibit good fire resistance and good physical toughness, particularly good elongation, and are useful as molding resins. The reaction product of a tungstic acid and melamine may alternatively be incorporated.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: November 25, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Robert Valentine Kasowski, Marvin Michael Martens