Abstract: A decorated synthetic resin sheet is formed by a continuously cast sheet of polymerized synthetic resin syrup integrally joined on at least one side with one side of an unwrinkled uniformly thick preformed film of polymerized synthetic resin that is compatible with the cast syrup. The film and sheet are integrally joined together to form a homogeneous product.

Abstract: Synthetic resin sheet material having a film, possibly bearing printing on at least one of its surfaces, with the film forming an integral part of the material is made by feeding the film together with a polymerizable syrup into a continuous plastic casting machine, the film being compatible with the syrup so that during passage through the machine with the syrup, the film softens and at least slightly dissolves in the syrup during polymerizing of the syrup and consequent solidifying of all of the components together.

Abstract: A process for continuously casting a sheet and the like, comprising, running two feed belts positioned in face-to-face relationship to each other, opposed belt surfaces of said belts being in the same direction without relatively displacement; running at least two gaskets together with the two belt surfaces at the both edges thereof; maintaining the opposed surfaces in any position rigid in the direction perpendicular to the running one and flexible in the running direction; supplying material between the belts from one side thereof; supporting the opposed belt surfaces by pressure of the material and retaining a gap in desired thicknesses between the belt surfaces in desired positions thereof; treating continuously the material between the belt surfaces and delivering treated sheet from the other side of the belts.