Abstract: A composition board which comprises a thin nonfrangible sheet material suitable for use as a surface covering, which material comprises: a fibrous sheet material impregnated with a cured thermosetting resin and characterized by one surface which is a nonporous, adhesive-free, fully cured surface, and another surface which is characterized by an adhesive-rich nonsanded surface, the adhesive being compatible with the cured resin, the adhesive-rich surface adapted to be bonded to a substrate, and the resin-rich surface used as a face surface for the substrate.

Abstract: A flexible, integrally bonded sheet material suitable for use as a face surface covering on a composition board, which sheet material comprises: first and second fibrous sheet materials bonded together by a cured thermosetting resin, the first sheet and at least a portion of the second sheet impregnated with a cured thermosetting resin, the face surface of the first sheet material characterized by a cured thermosetting resin surface, and the back surface of the second sheet material consisting essentially of fibers and capable of absorbing into the fibrous surface of the second sheet material an adhesive material for bonding purposes.

Abstract: A flexible, fully cured, resin-impregnated sheet material useful as a surface-covering laminate product, particularly on particle boards, and the process of preparing such sheet material and the laminate product, which sheet material is prepared by providing a thin, fibrous sheet material impregnated with a curable, thermosetting resin; applying onto one surface of the resin-impregnated sheet material a layer of a compatible resin adhesive material; and subjecting the resin-impregnated coated sheet material to high pressures of over about 20 kilos per centimeter square at a resin-curing temperature for a period of time to provide a thin sheet material characterized by a nonporous, cured, resin-rich, face surface free of adhesive, and an adhesive-rich back surface, the sheet material being flexible and capable of being handled without fracture thereof. The flexible sheet material is secured by adhesively bonding the material to a substrate, such as a particle board, for use as a surface covering.

Abstract: A process for preparing a flexible, cured sheet material, the sheet material so prepared, and in particular composition boards with the sheet material as a surface covering, which process comprises: providing a first thin fibrous sheet material impregnated with a curable thermosetting resin; placing onto one surface of the first sheet material a second flexible fibrous sheet material which is capable of absorbing an adhesive material; and subjecting the first and second sheet materials to a high pressure of over about 20 kilos per centimeter square at a thermosetting resin-curing temperature, and for a period of time to bond the surface of the second sheet material to the contacting surface of the first sheet material by the cured resin. The thin sheet material is characterized by a hard, resin-cured surface and capable of absorbing an adhesive material.