B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/30 (2006.01)
Patent
CA 2162104
The invention relates to a method for the production of flat laminates (5) from polymethacrylate plastic, by thermal adhesion of at least two parts (1) of polymethacrylate plastic heated at their surface, with the characterizing features that the parts (1) of polymethacrylate plastic, which have been preheated to surface temperatures of 130 to 200°C on the adhesion side (1a), and which maintain their original shape during the preheating phase, are pressed together between a pair of rollers (2, 3), of which at least one roller (2) [sic], by means of which the pressure force (4) is exerted, is mounted in movable manner, at a feed velocity being between and 200 mm/s and a pressure force acting on the roller (3) between 10 and 500 N. Preferably, during the adhesion of the laminates (5), flat or oblong objects (8) with thicknesses which are allowed to amount to a maximum of 50% of the thickness of the parts (1) of polymethacrylate plastic, are embedded between the parts (1) of polymethacrylate plastic which are to be adhered together.
Fehring Karl-Heinz
Rimpl Manfred
Theil Alexander
Evonik Roehm Gmbh
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Roehm Gmbh Chemische Fabrik
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