Patents Assigned to Phoenix Fibreglass Inc.
  • Process for separating fibres from composite materials
    Patent number: 5251827
    Abstract: A resin reinforced fibre product such as glass fibre impregnated with a thermosetting resin is treated to recover fibre by initially shredding the waste, pulverizing the shredded waste and sieving the pulverized waste to separate the free fibres. The remaining waste is milled to produce a fine powder suitable as a filler. The pulverizing is completed without classification and a portion of the pulverized product above a nominal cut size recampaigned. Free fibres are separated by an airlift during the sieving process.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: October 12, 1993
    Assignee: Phoenix Fibreglass Inc.
    Inventors: Bryan Sims, Craig A. Booth, V. I. Lakshmanan