Patents by Inventor Cornelis Johannes Maria Van Der Stappen

Cornelis Johannes Maria Van Der Stappen 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).

  • Patent number: 9533474
    Abstract: A laminated packaging material for containers for liquids includes a thermoplastic material outermost layer, a paper substrate layer and a thermoplastic material innermost layer, the thermoplastic material innermost layer comprising a blend of a linear low density polyethylene (LLDPE) and a low density polyethylene (LDPE), the blend having a low swelling ratio in a range from 0.9 to 1.2. The blend further may have a melt flow index in a range from 5 to 20 dg/min. The LLDPE component of the blend is made by polymerization in the presence of a single site catalyst and has an average density a range from 0.86 to 0.92 g/mL and a peak melting point a range from 55 to 105° C. The thermoplastic material innermost layer prepared using such blends advantageously has a low layer thickness a range from 8 to 25 ?m.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: January 3, 2017
    Assignee: Alternapak Holding B.V.
    Inventors: Albert Menalda, Cornelis Johannes Maria Van Der Stappen