Patents by Inventor Henricus A. J. Schepens

Henricus A. J. Schepens 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).

  • Polymer composition containing a propylene block copolymer
    Patent number: 6465572
    Abstract: Polymer composition containing: A. 100-40 wt. % of a propylene block copolymer, with a melt index of at least 1.0 dg/min (230° C., 16 kg) and containing block a1 of propylene monomer units and optionally ethylene monomer units, and block a2 of propylene monomer units and ethylene monomer units; B. 0-30 wt. % of an impact modifier; C. 0-50 wt. % of filler, and D. 0.1-10 parts per 100 parts A1 of ultra high molecular weight polypropylene. These polymer compositions are useful for injection molding large parts at high injection rates without exhibiting surface defects.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: October 15, 2002
    Assignee: DSM N.V.
    Inventors: Markus J. H. Bulters, Henricus A. J. Schepens, Nicolaas J. J. Aelmans