High speed extrusion coating with ethylene copolymers

Details High speed extrusion coating with ethylene copolymers High speed extrusion coating with ethylene copolymers

B - Operations, Transporting

29

C

117/114.6

B29C 47/02 (2006.01) B05D 1/26 (2006.01) B32B 27/06 (2006.01)

Patent

CA 1221281

ABSTRACT High Speed Extrusion Coating with Ethylene Copolymers Extrusion coating with high line speeds of up to 600 mpm may be achieved without sacrificing the adhesion of the coating to the substrate by using an ethylene copolymer with up to 3% by weight copolymer, preferably 0.5 to 2.5% by weight VA, as the coating polymer. The extrusion temperature is in the region of incipient degradation, but maintained below the level which gives undesirable degradation leading to odour or discoloura- tion.

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