EXTRUSION COATING OF LOW DENSITY POLYETHYLENE AND HEAT-SEALED ARTICLE MADE THEREFROM

摘要

The present invention relates to the use of a at least a part of a polymer layer comprising a composition (Co), the composition comprising a low density polyethylene (LDPE) produced in a tubular reactor which composition is free of additives as a thermoplastic surface of an extrusion coated structure comprising the polymer layer and a first substrate for preparing heat-sealed articles by heat-sealing of said thermoplastic surface with a second substrate; and The use of a at least a part of a polymer layer comprising a composition (Co), the composition comprising a low density polyethylene (LDPE) having -a melt flow rate (MFR) according to ISO 1133 (190°C, 2.16 kg) higher than 3.0 g/10 min; -a molecular weight distribution Mw/Mn which is greater than 10; and -a vinylidene content which is at least 15 / 100k C; which composition is free of additives as a thermoplastic surface of an extrusion coated structure comprising the polymer layer and a first substrate for preparing heat-sealed articles by heat-sealing of said thermoplastic surface with a second substrate.