Patents Assigned to Hexcel Holding GmbH
  • PREPREGS FOR USE IN BUILDING LAY-UPS OF COMPOSITE MATERIALS
    Publication number: 20130231018
    Abstract: A scrim-reinforced prepreg assembly for use in building low-porosity lay-ups. The assembly includes a prepreg that is composed of a fibrous reinforcement and a heat-curable resin mixture, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure. The scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the heat-curable resin mixture.
    Type: Application
    Filed: April 17, 2013
    Publication date: September 5, 2013
    Applicant: Hexcel Holding GmbH
    Inventors: Stephan Kruger, Gerhard Entholzer
  • Prepregs for use in building lay-ups of composite materials and processes for their preparation
    Patent number: 8435370
    Abstract: The invention concerns a process for making a scrim-reinforced prepreg for use in building low-porosity lay-ups, characterized in that a conventional prepreg is formed of a fibrous reinforcement and a heat-curable resin, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure, so that the scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the prepreg-resin.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: May 7, 2013
    Assignee: Hexcel Holding GmbH
    Inventors: Stephan Kruger, Gerhard Entholzen
  • PREPREGS FOR USE IN BUILDING LAY-UPS OF COMPOSITE MATERIALS AND PROCESSES FOR THEIR PREPARATION
    Publication number: 20100170620
    Abstract: The invention concerns a process for making a scrim-reinforced prepreg for use in building low-porosity lay-ups, characterized in that a conventional prepreg is formed of a fibrous reinforcement and a heat-curable resin, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure, so that the scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the prepreg-resin.
    Type: Application
    Filed: March 16, 2010
    Publication date: July 8, 2010
    Applicant: Hexcel Holding GmbH
    Inventors: Stephan Kruger, Gerhard Entholzer
  • Prepregs for use in building lay-ups of composite materials and processes for their preparation
    Patent number: 7709404
    Abstract: The invention concerns a process for making a scrim-reinforced prepreg for use in building low-porosity lay-ups, characterized in that a conventional prepreg is formed of a fibrous reinforcement and a heat-curable resin, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure, so that the scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the prepreg-resin.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: May 4, 2010
    Assignee: Hexcel Holding GmbH
    Inventors: Stephan Kruger, Gerhard Entholzer