| 摘要 |
897,049. Laminates. CONCH INTERNATIONAL METHANE Ltd. Feb. 7, 1961, No. 4512/61. Class 140. [Also in Groups XXVIII and XXIX] Each of a plurality of heat insulating panels forming a lining for a rigid shell 1 of a liquefied gas container has a back layer 5 of plywood or metal secured to the inner surface of the shell and extending beyond the periphery of the panel core 6 and side panels 8 bonded thereto, and the joint between abutting back layers 5 of adjacent panels is sealed by a strip 9 of plywood, metal or plastic material bonded thereto, and the remaining space between the panels is filled with polyvinyl chloride overlaid by a sealing strip 11 of plywood bonded to front layers 7 of each panel which are also of plywood. The panel core 6 is of balsa wood, quippo or honeycombed material.
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