Abstract: A composite board comprises feather barb reinforced resin. The resin is typically polyurethane, which may be foamed or unfoamed. One or both surfaces can be reinforced by embedded fiberglass mats. The products are hard, heat and weather resistant, flexible, stronger than plywood, light and screw retentive. The board is be molded from a polyurethane precursors-feather barb slurry with or without blowing agents and with or without one or two polyurethane saturated fiberglass mats embedded in the surface. Alternatively the board can be molded continuously using conveyor belts. The polyurethane is the same throughout in the fiberglass reinforced surface and the feather barb reinforced core, whether foamed or not.

Abstract: A recreational trailer has a central longitudinal bathroom at one end, with a refrigerator abutting a bathroom crosswall in the fixed central portion, and a kitchen counter at the other end of the fixed central portion. The bathroom has at least one door in one longitudinal wall, usually two opposed doors in its longitudinal walls. Two slideout rooms provide space when expanded for two bedrooms adjacent the bathroom. Doors attached to the longitudinal bathroom walls when closed meet slideout stub wall panels from the slideout room outer longitudinal walls providing bedroom privacy. When two bathroom doors are present, both are lockable to provide access to and privacy in the bathroom, which has shower, toilet and vanity. The slideout rooms extend along the bulk of the trailer and provide space for kitchen and dining room.

Abstract: A reinforced panel for tables, counters, desks, benches, etc. has a foamed polyurethane core reinforced by feather barbs, with top and bottom layers of solid polyurethane reinforced by chopped fiberglass. The top layer has a color gel coat resin coating and a surface coating containing granite particles. The panel is manufactured by spraying the surface coating, then the color gel coat resin in the mold top, then polyurethane precursors and chopped fiberglass in the mold top and bottom. A slurry of polyurethane precursors, feather barbs and blowing agent is poured into the mold. The mold is closed, and the polyurethane precursors are cured and foamed, vacuum may be applied to fill voids during foaming.