Abstract: A string binder is disclosed which is useful for making reinforcing articles for use in the manufacture of molded composite articles. The string binder comprises a fibrous carrier substrate covered with a solidified coating comprising a binder resin material having an acid value of less than about 30 mg KOH/g of resin. Additionally, the fibrous carrier substrate may be coated with at least one layer of a pre-coating or post-coating comprising a catalyst composition. The string binder may be co-roved with one or more ends of a separate fibrous reinforcing material to make a product suitable for use in various molding applications.

Abstract: A method for performing resin injected pultrusion employing different resin materials is provided. The method comprises impregnating the interior layers of a pultrusion reinforcement pack with a first resin material, adding the exterior layers to form a pultrusion pack and impregnating the pack with a resin material substantially nonidentical to the first resin material.

Abstract: This development relates to elastomer modified polyester for sheet molding compound (SMC). This development copolymerizes the rubber with the polyester. The reaction provides copolymers with extended storage times without phase separation. It also enhances impact resistance of the molded part.

Abstract: This development provides glycidyl-acrylates that, when copolymerized with unsaturated polyesters, provide high performance, structural SMC products. The acrylates increase the reactivity of the polyesters. One result has been "zero shrinkage" parts with good heat distortion, pigmentability and excellent mechanical and physical properties.