Patents by Inventor Ingo Schinkel

Ingo Schinkel 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: 5501905
    Abstract: This invention relates to matt, multilayered propylene films to which their matt appearance is imparted by a one-sided, coextruded layer of a polymer mixture.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: March 26, 1996
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Anton Krallmann, Thomas Blum, Ingo Schinkel
  • Patent number: 5425990
    Abstract: The invention relates to matt-effect multilayer polypropylene films which acquire their matt appearance from at least one-sided, coextruded layer of a polymer mixture.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: June 20, 1995
    Assignee: Wolff Walsrode AG
    Inventors: Thomas Blum, Ingo Schinkel, Anton Krallmann
  • Patent number: 5152879
    Abstract: The bonding properties of polyolefin films in composites are improved by a treatment with a low pressure plasma.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: October 6, 1992
    Assignee: Wolff Walsrode AG
    Inventors: Siegfried Thurm, Ulrich Reiners, Ingo Schinkel, Manfred Kowitz
  • Patent number: 5126198
    Abstract: Improved heat-laminatable multi-layer film containing a polypropylene base layer, a heat-laminatable layer containing an ethylene/vinyl acetate copolymer and an ethylene/ethyl acrylate or ethylene/acrylic acid copolymer, one layer of the film being a gas barrier layer.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: June 30, 1992
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Ingo Schinkel, Ulrich Reiners
  • Patent number: 5126197
    Abstract: An improved heat-laminatable, high-glass and high-slip, at least monoaxially stretched multilayer film comprises at least one base layer I consisting essentially of polypropylene, an outer layer II which is thin by comparison with layer I and which consists essentially of polypropylene and an addition of an anti-blocking additive and a heat-activatable, heat-laminatable layer III containing an ethylene/vinyl acetate copolymer A and an ethylene/ethyl acrylate copolymer B1 and/or an ethylene/acrylic acid copolymer B2, the base layer I containing no anti-blocking additives.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: June 30, 1992
    Assignee: Wolff Walsrode AG
    Inventors: Ingo Schinkel, Ulrich Reiners
  • Patent number: 5122415
    Abstract: Multilayered films with a special sealing layer which is applied only to one side have improved properties, in particular improved transparency.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: June 16, 1992
    Assignee: Wolff Walsrode AG
    Inventors: Ingo Schinkel, Jurgen Bohner
  • Patent number: 5077129
    Abstract: The new polypropylene film contains a polymer based on polyisobutyl methacrylate and polymethyl methacrylate as antiblocking agent.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: December 31, 1991
    Assignee: Wolff Walsrode AG
    Inventors: Ingo Schinkel, Ulrich Reiners, Anton Krallmann
  • Patent number: 4897235
    Abstract: Process for the production of surface-finished, at least monoaxially stretched, thermoplastic films which are characterized in that the surface coating is imparted by means of slot doctoring systems before at least one stretching stage, and the subsequent stretching is carried out without contact with the surface.
    Type: Grant
    Filed: June 8, 1988
    Date of Patent: January 30, 1990
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Heinrich Rosenthal, Ingo Schinkel
  • Patent number: 4842930
    Abstract: Heat-sealable, at least monoaxially orientated multi-layer film of a base layer of a polypropylene and at least one heat-sealable layer of1. 35 to 70% by weight, preferably 38 to 60% by weight, of olefin polymers of(A) at least one terpolymer consisting of(a) 65 to 82% by weight of propylene,(b) 25 to 14% by weight of butene-1,(c) 10 to 4% by weight of ethylene, and(B) 0 to 7% by weight of a copolymer of ethylene and butene-1,wherein the sum of (A) and (B) or of (a) to (c) must always give 100% by weight and the monomer content of components (A) and (B) must always give 65 to 82% by weight of propylene, 25 to 14% by weight of butene-1 and 10 to 4% by weight of ethylene,2. 65 to 30% by weight, preferably 62 to 40% by weight, of a propylene/ethylene copolymer with 2 to 6% by weight of ethylene, wherein the sum of 1. and 2. must always give 100% by weight, and3. if appropriate customary auxiliaries and additives.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: June 27, 1989
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Ingo Schinkel, Jurgen Bohner
  • Patent number: 4830918
    Abstract: Heat-sealable composite films, stretched at least uniaxially, comprising a base layer, of a propylene polymer, which is provided on at least one of its surfaces with an adhesion promoter layer and a heat-sealable layer of a thermoplastic polyurethane elastomer.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: May 16, 1989
    Assignee: Wolff Walsrode Aktiengessellschaft
    Inventors: Ingo Schinkel, Rudi Klein
  • Patent number: 4692386
    Abstract: Multiple-layer films, particularly wrapping films, having a high sealing strength at a low sealing temperature flavorable optical properties and machine compatibility based on a film of propylene polymers and at least one linear ethylene copolymer of low density as the heat sealing layer.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: September 8, 1987
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Ingo Schinkel, Jurgen Bohner
  • Patent number: 4668575
    Abstract: Heat sealable, composite film comprising a polypropylene film, at least one adhesion layer, at least one gas-barrier layer and at least one heat-sealing layer of a linear statistical ethylene copolymer of low density.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: May 26, 1987
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Ingo Schinkel, J/u/ rgen B/o/ hner
  • Patent number: 4666772
    Abstract: Heatsealable opaque multilayer films, particularly wrapping films, having a high sealing strength, at low sealing temperature, favorable optical properties and machine compatibility based on a film of a propylene polymer and a linear statistical ethylene copolymer of low density as the heat sealing layer.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: May 19, 1987
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Ingo Schinkel, Jurgen Bohner
  • Patent number: 4400428
    Abstract: A composite film comprising a polypropylene basis film being laminated at least on one surface with a layer combination of a heat sealable layer with an additive combination, an adhesion promotion layer, a gas-barrier layer, and an adhesion promotion layer and optionally a further heat sealable layer.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: August 23, 1983
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Heinrich Rosenthal, Ingo Schinkel, Gunter Eger, Wolfgang Bair
  • Patent number: 4348457
    Abstract: A sealable multilayer film for packaging comprising a polypropylene film and at least one sealing layer of an ethylene homo- or copolymer wherein the sealing layer contains an additive combination of a long-chain amine, a thermoplastic polymer incompatible with the sealing polymer and a polydialkyl siloxane.
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: September 7, 1982
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Heinrich Rosenthal, Ingo Schinkel, Gunter Eger