B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/135, 18/782
B32B 27/12 (2006.01) A47K 3/30 (2006.01) B29C 43/24 (2006.01) B29C 43/30 (2006.01) B29C 70/68 (2006.01) B32B 38/04 (2006.01)
Patent
CA 1176421
ABSTRACT OF THE DISCLOSURE: Herein disclosed are a method and a device for manufacturing multi-ply sheets of extrudable plastics material supplied by way of two webs which are produced by extruders having flat sheet dies and which are bonded to a structured insert web by means of rolls. The multi-ply sheets thus produced are especially for use with a shower enclosure. In manufacturing such multiply sheets it is difficult to obtain a reliable bond between the webs and the structured web without sophisticated machinery. There is also the requirement that the structured web be uniformly introduced between the webs. The disclosure proposes to feed these webs to a single common set of rolls and to arrange the flat sheet die of one extruder so close to a set of rolls that a reliable permanent bond to the struc- tured web and/or to the other web is obtained by the heat accumulated and carried in the one web just extruded.
398323
Baus Heinz G.
Baus Heinz G.
Robic Robic & Associes/associates
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