Patents by Inventor L. A. van der Groep

L. A. van der Groep 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, a process for its manufacture, and a thermoplastic moulding composition
    Patent number: 5017659
    Abstract: This invention relates to a polymer composition comprising per 100 parts by weight of the composition(a) 30-60 parts by weight of copolymer of ethylene and 1-olefin having at least 6 C atoms,(b) 35-65 parts by weight of copolymer of ethylene and vinyl acetate,(c) 1-10 parts by weight of ethylene-propylene-diene rubber,said polymer composition being obtained by reaction at elevated temperature of the components.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: May 21, 1991
    Inventor: L. A. van der Groep
  • Polymer composition, a process for its manufacture, and a thermoplastic polymer composition
    Patent number: 5001195
    Abstract: This invention relates to a polymer composition comprising per 100 parts by weight of the composition(a) 30-60 parts by weight of copolymer of ethylene and 1-olefin having at least 6 C atoms,(b) 35-65 parts by weight of copolymer of ethylene and vinyl acetate,(c) 1-10 parts by weight of ethylene-propylene-diene rubber,said polymer composition being obtained by reaction at elevated temperature of the components.
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: March 19, 1991
    Inventor: L. A. van der Groep