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Reinforced plastic sheet machine and method

  • US 4,404,057 A
  • Filed: 09/08/1981
  • Issued: 09/13/1983
  • Est. Priority Date: 09/08/1981
  • Status: Expired due to Fees
First Claim
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1. A process of continuously forming FRP sheet comprising the steps of depositing a liquid thermosetting resin on a film which is supported on a belt, thereafter depositing glass fiber components on the liquid thermosetting resin, impregnating the glass fiber components with the resin by drawing the glass fiber components and liquid thermosetting resin through a nip defined by a nip roll over which the belt is trained and a heating-curing drum against the periphery of which the belt presses the glass fiber components and resin, and establishing and maintaining a substantially uniform sheet thickness during impregnation of the glass fiber components with the resin and curing of the latter by adjusting the position of the nip roll relative to the drum and by adjusting the tension in the belt.

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