Patent ID: 6168735
Filing Date: 2001-01-02
Classification: B29C

Abstract:
A method of manufacturing a fiber reinforced article comprising: providing a foam core made from an unsaturated polyol containing at least one unsaturated C.dbd.C group and a hydroxyl functional group and wherein said foam core contains at least one unsaturated C.dbd.C group; placing a fiber-reinforcing layer adjacent to said foam core; wetting said reinforcing layer and the surface of said foam core with an uncured thermoset resin selected from the group consisting of polyester resins and vinyl ester resins; reacting said resin and said at least one unsaturated C.dbd.C group of said foam core whereby said resin bonds with said foam core by means of free radical reaction; and curing said resin, whereby said resin forms a solid polymer encasing said fiber reinforcing layer and bonding said fiber-reinforcing layer to said foam core to form said article.