Abstract: An improved prefabricated building panel suitable for use as a wall and/or a roof panel for buildings said panel having a center core with an inner and outer skin coupled thereto by means of a pultrusion.

Abstract: Reinforced synthetic resin compositions are provided having 25 to 90% by weight of synthetic resin, and the balance (75 to 10% by weight) of reinforcing fillers comprising: (1) 0 to 150 parts by weight of epsom salt, (2) 0 to 150 parts by weight of hydrated borax, and/or (3) 0 to 20 parts by weight of glass spheres, so long as at least one of the two components identified in (1) and (2) are used. The compositions may be used as coatings or for molded articles. They do not require use of aluminum trihydrate, or silica flour particles, or other known fillers having fire retardant properties. Yet, the compositions of the invention are found to possess heretofore unknown properties of fire retardancy, ablation, and smoke absorbency.

Abstract: Reinforced synthetic polyester resin compositions are provided having 10 to 60 percent by weight of resin, 1 to 30 percent by weight of glass spheres, 10 to 60 percent by weight of Suzorite mica platelets, and 20 to 70 percent by weight of silica flour. The compositions may be applied to a mold or to a plastic sheet. They do not require glass fibers, and thus avoid the laborious rolling down of fibers carried on the surface of freshly applied glass fiber-resin compositions. Yet, articles formed from the compositions of the invention retain or improve upon the physical properties inherent in glass fiber-resin compositions. In particular, the compositions and articles are found to be fire retardant.

Abstract: Reinforced synthetic polyester resin compositions are provided having 10 to 60 percent by weight of resin, 1 to 30 percent by weight of glass spheres, 10 to 60 percent by weight of Suzorite mica platelets, and 20 to 70 percent by weight of aluminum trihydrate particles. The compositions may be applied to a mold or to a plastic sheet. They do not require glass fibers, and thus avoid the laborious rolling down of fibers carried on the surface of freshly applied glass fiber-resin compositions. Yet, articles formed from the compositions of the invention retain or improve upon the physical properties inherent in glass fiber-resin compositions.