Patents by Inventor Jacobus Sampers

Jacobus Sampers 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).

  • Uv-stabilised polyamide composition
    Publication number: 20060194903
    Abstract: Reinforced polyamide composition stabilised against weather influences which contains: (a) 40 to 95 parts by weight of polyamide at least 50 wt % of which is semicrystalline polyamide; (b) 5 to 60 parts by weight of reinforcing material; (c) 0.05 to 4 parts by weight of at least of one organic UV stabiliser from the class of hindered amines; and (d) 0.1 to 5 parts of weight of carbon black with an average primary particle size of a least 30 nm.
    Type: Application
    Filed: March 1, 2004
    Publication date: August 31, 2006
    Inventors: Wilhelmus Sour, Jacobus Sampers
  • Stabilized polypropylene resin composition
    Publication number: 20050085574
    Abstract: The invention relates to a polypropylene resin composition which is stabilized against photo-induced oxidation. The composition comprises a hindered amine-based light stabilizer (HALS), having a molecular weight equal or below 1250; a phenolic antioxidant (PAO) with a molecular weight of equal or below 750; and a pigment. The ratio of HALS to PAO is less than 5.
    Type: Application
    Filed: February 21, 2003
    Publication date: April 21, 2005
    Inventors: Pieter Gijsman, Jacobus Sampers, Wytske Bunge, Johannes Vaassen