Patents by Inventor Lucio Edefonti

Lucio Edefonti 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: 4421780
    Abstract: Heat-sealable films are described which are constituted by a polyolefin film, particularly polypropylene, having on one surface thereof a layer of primer, applied in aqueous or aqueous-alcoholic solution, and chosen from: polyethylenimines, products of the condensation of urea or melamine with formaldehyde, particularly the etherified compounds; alkoxyalkyl melamine polyhydroxylates; or mixtures of the said compounds; and, on the other surface thereof, a layer of the said primer or one similar to the first, followed by a layer of vinyl, vinylidene or acrylic polymer or copolymer.
    Type: Grant
    Filed: December 16, 1981
    Date of Patent: December 20, 1983
    Assignee: Societa' Italiana Resine S.I.R. S.p.A.
    Inventors: Pierpaolo Buzio, Lucio Edefonti, Gianluigi Argela'
  • Patent number: 4259412
    Abstract: Flexible double-layer polypropylene laminate consisting essentially of a biaxially oriented film of isotactic polypropylene with an atactic polypropylene content of less than 6% by weight and an intrinsic viscosity of from 1.5 to 3 dl/g, adhesively bonded to a non-oriented film of isotactic polypropylene with an atactic polypropylene content of from 15 to 30% by weight, said polypropylene in said non-oriented film deriving directly from the polymerization of propylene and having an intrinsic viscosity of from 2 to 8 dl/g.
    Type: Grant
    Filed: August 8, 1979
    Date of Patent: March 31, 1981
    Assignee: Societa' Italiana Resine S.I.R. S.p.A.
    Inventors: Pierpaolo Buzio, Lucio Edefonti
  • Patent number: 4163080
    Abstract: A flexible double-layer polypropylene laminate consisting of a bioriented film consisting essentially of isotactic polypropylene with an atactic polypropylene content of less than 6% by weight and an intrinsic viscosity (standard ASTM D 1601) of from 1.5 to 3.0 dl/g, adhesively bonded with a non-oriented film consisting essentially of a mixture of isotactic polypropylene and atactic polypropylene, the latter in an amount of from 15 to 30% by weight of the total weight of the said mixture, the isotactic polypropylene of said mixture having an intrinsic viscosity (standard ASTM D 1601) of from 1.0 to 1.5 dl/g and the atactic polypropylene of said mixture having a density (standard ASTM D 1505) of from 0.855 to 0.865 g/cm.sup.3 and a viscosity at 160.degree. C. of from 3,000 to 10,000 cps.
    Type: Grant
    Filed: April 13, 1978
    Date of Patent: July 31, 1979
    Assignee: Societa' Italiana Resine S.I.R. S.p.A.
    Inventors: Pierpaolo Buzio, Lucio Edefonti