Patents by Inventor Johannes Ottenheijm

Johannes Ottenheijm 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 composition
    Publication number: 20060235125
    Abstract: The invention relates to a flame retardant polyamide composition, comprising a polyamide polymer, a polyamide prepolymer, a halogen containing flame retardant, and an antimony containing synergist having a low lead content. The composition shows surprisingly improved mechanical properties. The invention also relates to a process for preparing the flame retardant polyamide composition, use the flame retardant polyamide composition for preparing moulded parts and to a moulded part obtainable from the flame retardant polyamide composition.
    Type: Application
    Filed: May 14, 2004
    Publication date: October 19, 2006
    Inventor: Johannes Ottenheijm
  • Process for preparing a flame retardant polyamide compound
    Publication number: 20060052528
    Abstract: The invention relates to a process for preparing a flame retardant polyamide compound comprising melt-mixing of a composition comprising at least a polyamide polymer having a weight-average molecular weight of at least 10,000 g/mol, an amount of 1-100 wt. % relative to the total weight of polyamide of a flame retardant, and an amount of 0.1-30 wt. %, relative to the total weight of polyamide, of a polyamide oligomer having a weight-average molecular weight of at most 7,500 g/mol.
    Type: Application
    Filed: December 10, 2003
    Publication date: March 9, 2006
    Inventor: Johannes Ottenheijm
  • Flame retardant polyamide compound
    Publication number: 20060014866
    Abstract: The present invention relates to a flame retardant polyamide compound comprising a polyamide polymer having a weight-average molecular weight of at least 10.000 g/mol, a polyamide oligomer having a weight-average molecular weight of at most 7500 and a halogen-free phosphorous containing flame retardant. The invention also relates to a process for preparing said flame retardant polyamide compound and to the use of said compound.
    Type: Application
    Filed: December 10, 2003
    Publication date: January 19, 2006
    Applicant: DSM IP Assets B.V.
    Inventor: Johannes Ottenheijm