Patents Assigned to Coplas, Inc.
  • In mold overlay process for gel coated glass fiber reinforced laminates
    Patent number: 5087405
    Abstract: A method of protecting glass fiber reinforced products from the effects of weathering by applying a polymeric resin overlay to the product in mold. Conventional waxing of molds is eliminated. The mold is prepared by applying a layer of a lecithin solution, and the overlay is applied thereafter. A layer of gel coat is then applied to the overlay, the gel coat is reinforced and the overlay-protected product is demolded. The invention also includes a method for making an overlay-protected synthetic marble product.
    Type: Grant
    Filed: November 8, 1988
    Date of Patent: February 11, 1992
    Assignee: Coplas, Inc.
    Inventor: Walter J. Maker