Abstract: A continuous process and apparatus are disclosed for forming products from thermoplastic polymeric material having three-dimentional patterns and surface textures on one or both faces that may be similar or dissimilar with or without a continuously changing profile and with or without shaped edges, such as shake shingle panels, board and batten panels, rough barn board panels, wainscoting panels, brick panels, stone panels, patterned door panels, similar structural wall panels, roofing or siding panels, ribbed soffits, fascia board, flooring reinforced with egg crate ribs, forms for pouring contoured concrete structures, and other three-dimensional pattern and surface textured plastic products which may extend in widths up to 4 feet or more and in lengths up to 20 feet or more.

Abstract: Continuous apparatus for impression molding products containing thermoplastic material and having three-dimensional patterns on one or both surfaces, similar or dissimilar, with or without continuously changing profile or shaped edges. The thermoplastic material to be formed may or not contain foamants, fillers, strata or plys of differing composition to reinforce, decorate or protect, and is heated above its glass transition temperature before introduction between revolving flexible belt molds, which revolve in opposed relationship, being cooled, forming a travelling mold channel, at least one having a flexible three-dimensional pattern form on its front face. Opposed nip rolls press the revolving belt molds against the entering thermoplastic material. At least one belt mold travels partially around the nip roll impressing its three-dimensional pattern form in the heated material in a progressive localized rolling squeezing action in the nip region.