Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
Publication of GB251150ApublicationCriticalpatent/GB251150A/en
251,150. Luytgaerens, P. July 30, 1925. Non-conducting coverings for heat and sound. - A compound sheet material is formed by combining, under heat and pressure, one or more sheets of agglomerated cork with sheets of paper, cloth, or other covering material coated or impregnated with a natural or synthetic resin, The coated paper &c., which may be embossed, coloured, painted or enamelled, is laid in one or more sheets on the face or faces of the sheet of cork, and the whole subjected to a pressure of 10-30 kilos per square centimetres at a temperature of 100-150‹ C.