B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/783, 18/784
B29D 7/00 (2006.01) B29B 17/00 (2006.01) B29C 47/06 (2006.01)
Patent
CA 1089615
ABSTRACT OF THE DISCLOSURE In a method of making a self-adhesive composite web, a carrier layer of thermoplastic material and an adhesive layer of a solvent-free non-cross-linkable elastomer are brought into face-to-face relationship whilst in a heated condition. The component layers may be extruded separately and subsequently brought together, smoothed and then coiled, or they may be produced in contact with one another by co-extrusion through a two-layer nozzle and then smoothed and coiled, or they may be produced simultaneously by a tube blowing apparatus from which the composite tube is taken off, flattened and slit before coiling.
255469
Beck Heinrich
Konermann Fritz
Schaperklaus Heinrich
Upmeier Hartmut
Zimmermann Werner-Josef
Bischof Klein
Marks & Clerk
Windmoller & Holscher
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