| 摘要 |
963,203. Refrigerators. G. ZANETTE, A. ZANETTE, and E. BIASOTTO, [trading as ANTONIO ZANETTE & FIGLI SOC.]. Sept. 23, 1960, No. 32701/60. Heading F4H. [Also in Division B5] Moulded articles such as refrigerator doors and cabinets comprise an inner core 4 of an expansible resinous material, e.g. polystyrene, and an outer covering 3, e.g. a mixture of an aliphatic polyglycidyl ether, an aromatic diamine and a colouring material, solidly united therewith. The inner walls of the mould 1, 2 are lined with the outer covering material, and thereafter pre-expanded core material is introduced into the mould and the material is heated in the closed mould in an H.F. field to complete the expansion of the core material. |
