Extrusion coating process with polyester compositions.

They ARE PRESENTED solid compositions for extrusion coating metal substrates, a method of extrusion coating a metal substrate and a metal article. The composition of extrusion coating is a thermoplastic AND UNDERSTAND MATERIAL: A) a polyester having a weight average MW of between 10000 and 50000 and optionally, B) a resin modifier, selected from epoxy resins having an equivalent WEIGHT epoxide between 500 and 15000, RESINAS acrylic or polyolefin resins. The composition of extrusion coating applied to a substrate metal extrusion process to provide a film of the composition having a thickness of 1 to 40 microns.