Patents by Inventor Johannes A. N. de Leeuw

Johannes A. N. de Leeuw 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: 4344998
    Abstract: A metallic laminate is prepared by coating a major surface of a polymeric film with a release agent having the capacity to effect a weak releasable bond from the surface of the polymeric film and a strong non-releasable bond with a surface of a stratum of metal which has been freshly vapor deposited, precipitating a thin coherent stratum of metal on the coated surface of the polymeric film by vapor deposition, applying a layer of standard laminating adhesive to the exposed stratum of metal and bonding the stratum of metal to a non-metallic substrate by standard laminating techniques using a liquid lacquer that, after application on the carrier, has a contact angle of 0.degree. to the carrier surface. The resulting metallized vapor coated composite structure has a reflectivity of at least 85%, a heat emission of about 8% of the Stefan Boltzmann constant at 25.degree. C., a mirror reflectivity of at least 4, and dead fold properties that are the same as those of the substrate.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: August 17, 1982
    Assignee: Koninklijke Emballage Industrie Van Leer
    Inventors: Johannes A. N. de Leeuw, Johannes T. Brugmans
  • Patent number: 4250209
    Abstract: A major surface of a polymeric film such as untreated polypropylene is coated with a release agent which has the capacity to effect a weak, releasable bond with the surface of the polymeric film and a stron, non-releasable bond with the surface of metal, e.g., aluminum, which has been freshly vapor deposited; precipitating a thin, coherent stratum of the desired metal upon the coated surface of the polymeric film by vapor deposition; whereupon are applied simultaneously(1) a layer of a standard laminating adhesive to the stratum of the metal, which is then bonded thereby to the non-metallic substrate by standard laminating techniques; a composite structure having the following configuration is produced as a result: polymeric film/release agent coating/vapor deposited metal stratum/laminating adhesive layer/non-metallic substrate and(2) a coating of the release agent to the free major surface of the polymeric film; from which composite structure the polymeric film is then stripped.
    Type: Grant
    Filed: May 10, 1978
    Date of Patent: February 10, 1981
    Assignee: Lurex B.V.
    Inventors: Johannes A. N. de Leeuw, Johannes T. Brugmans