Process for producing a laminate by coextrusion and...

Details Process for producing a laminate by coextrusion and... Process for producing a laminate by coextrusion and...

B - Operations, Transporting

29

C

18/520, 204/91.3

B29C 49/04 (2006.01) B29C 47/06 (2006.01) B29C 47/92 (2006.01) B29C 49/22 (2006.01) B29C 49/78 (2006.01) B29C 49/80 (2006.01) B32B 27/08 (2006.01)

Patent

CA 1314367

ABSTRACT OF THE DISCLOSURE A process for the production of a laminate comprising thermoplastic material with a multi-layer wall by co-extrusion provides that added to the material for forming at least one of the layers of the laminate is a substance which makes it possible for that layer to be rendered reconginisable in the laminate by the action of physical and/or chemical means. The added substance may be a fluorescing, phosphorescing or luminescing substance so that the layer containing that substance can be rendered visible in the wall of the laminate by the action of UV radiation of appropriate wavelength.

563769

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