Patents by Inventor Angela Speith-Herfurth

Angela Speith-Herfurth 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).

  • POLYPROPYLENE FILM COMPRISING AN OPENING AID
    Publication number: 20120187010
    Abstract: A biaxially oriented polypropylene film with at least two perforated lines is described, which run parallel to one another and are located at a maximum interval of 10 mm. The perforations of the two lines are offset relative to one another. The intervals of undamaged film between the perforations are longer than the perforations.
    Type: Application
    Filed: August 26, 2010
    Publication date: July 26, 2012
    Applicant: TREOFAN GERMANY GmbH & Co.KG
    Inventors: Angela Speith-Herfurth, Patrick Stuppi, Leo Wintrich, Joerg Steinbrecher, Markus Henne
  • POLYPROPYLENE FILM COMPRISING AN OPENING AID
    Publication number: 20120152773
    Abstract: A biaxially oriented polypropylene film with perforated lines is described. The film has at least two perforated lines which run parallel to one another and are located at a maximum interval of 10 mm. The perforations of the two lines are offset relative to one another.
    Type: Application
    Filed: August 26, 2010
    Publication date: June 21, 2012
    Applicant: TREOFAN GERMANY GMBH & CO. KG
    Inventors: Angela Speith-Herfurth, Patrick Stuppi, Leo Wintrich, Joerg Steinbrecher, Markus Henne
  • Biaxially oriented polypropylene film provided with a cold-seal adhesive coating and having excellent lubricating properties
    Patent number: 7678461
    Abstract: The invention relates to a multi-layer biaxially oriented polypropylene film consisting of a base layer at least one first cover layer. The base layer contains a hydrocarbon resin, and the cover layer contains a polydialkylsiloxane with a viscosity of at least 200.000 mm2/sec. The first cover layer is provided with a cold-seal adhesive coating on its outer surface.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: March 16, 2010
    Assignee: Treofan Germany GmbH & Co. KG
    Inventors: Angela Speith-Herfurth, Robert Hansohn
  • Biaxially oriented polypropylene film provided with a cold-seal adhesive coating and having excellent lubricating properties
    Publication number: 20060222867
    Abstract: The invention relates to a multi-layer biaxially oriented polypropylene film consisting of a base layer at least one first cover layer. The base layer contains a hydrocarbon resin, and the cover layer contains a polydialkylsiloxane with a viscosity of at least 200,000 mm2/sec. The first cover layer is provided with a cold-seal adhesive coating on its outer surface.
    Type: Application
    Filed: April 8, 2004
    Publication date: October 5, 2006
    Applicant: Treofan Germany GmbH & Company Co. KG
    Inventors: Angela Speith-Herfurth, Robert Hansohn
  • Multi-layer biaxially oriented polypropylene film having an improved barrier, a method for the production thereof, and the use thereof
    Patent number: 6811886
    Abstract: The invention relates to a multi-layer, sealable, biaxially oriented polypropylene film having improved barrier properties which is constructed of a base layer, of at least one sealable covering layer and of at least one intermediate layer. The intermediate layer contains a wax with an average molecular weight Mn ranging from 200 to 1200. The invention also relates to a method for producing the film and to the use thereof.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: November 2, 2004
    Assignee: Hoechst Trepaphan GmbH
    Inventors: Angela Speith-Herfurth, Stefan Bunk, Robert Hansohn
  • Heat sealable, biaxally oriented polypropylene film with improved barrier properties
    Patent number: 6777067
    Abstract: The invention relates to a multi-layer, sealable biaxially oriented polypropylene film consisting of a base layer and at least one sealable covering layer. The base layer contains between 1 and 15 weight % of a resin with a mean molecular weight Mw of between 600 and 1,500 and between 1 and 6 weight % of a wax with a mean molecular weight Mn of between 200 and 700. The n-heptane insoluble part of the polypropylene of the base layer has a chain isotactic index of at least 95%, as measured by 13C-NMR spectroscopy. The invention also relates to a method for producing said film and to its use.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: August 17, 2004
    Assignee: Hoechst Trespaphan GmbH
    Inventors: Angela Speith-Herfurth, Robert Hansohn, Detlef Schumann, Frank Ernst
  • Oriented multilayer polyolefin film which is heat-sealable on both sides, its use, and process for its production
    Patent number: 5945225
    Abstract: Oriented multilayer polyolefin film which is heat-sealable on both sides, its use, and process for its production.An oriented multilayer polyolefin film which is heat-sealable on both sides and is printable, made from at least one base layer and, on both sides, heat-sealable outer layers, which film contains a hydrocarbon resin. Both outer layers contain silicone oil and at least one surface of the film is surface-treated.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: August 31, 1999
    Assignee: Hoechst Trespaphan GmbH
    Inventors: Angela Speith-Herfurth, Wolfgang Rasp, Robert Hansohn