| 摘要 |
<p>1470196 Contact packing material COOLING DEVELOPMENTS Ltd 9 Oct 1975 [13 Nov 1974] 49181/74 Heading B1R [Also in Divisions B5 and Dl] A cellular material useful as contact packing comprises a plurality of cells formed in a three-dimensional integral array wherein the side walls of the cells lie in parallel planes which are perpendicular to the general plane of the array, the opposite side walls of each cell in a longitudinal direction having an intermediate point of inflexion and the opposite walls of each cell in a transverse direction having a thickness equal to the sum of the thickness of each portion of the longitudinal side walls about the point of inflexion. The sheet material is preferably polyvinyl chloride.</p> |
