Polymer compositions and extrusion coated articles

A polymer composition (A) comprising a blend of

• i) 60 to 90 wt-% of propylene polymer composition (a) comprising a blend of
• (a-1) 55 to 95 wt-% of propylene polymer and
• (a-2) 5 to 45 wt-% of low density ethylene polymer (LDPE) which is a high pressure polyethylene,
• where the amounts of (a-1) and (a-2) are based on the total weight of composition (a), and composition (a) has a melt flow rate MFR2 of from 10 to 50 g/10 min (230° C./2.16 kg) and the Vicat softening temperature in the range of 120 to 155° C. measured according to ISO 306,
• and
• ii) 10 to 40 wt-% of a plastomer (b) of ethylene copolymer with at least one α-olefin comonomer of 4 to 10 C-atoms, provided that at least one comonomer is a monomer with at least 6 C-atoms
• where the amounts of (i) and (ii) are based on the total weight of the composition (A), and
• wherein the plastomer b) has a density of 880 to 912 kg/m3.

A polymer layer structure (PL) comprising

• 1) Layer 1 of polymer composition (A) comprising a blend of
• i) 60 to 90 wt-% of propylene polymer composition (a) comprising a blend of
• (a-1) 55 to 95 wt-% of propylene polymer and
• (a-2) 5 to 45 wt-% of low density ethylene polymer (LDPE) which is a high pressure polyethylene,
• where the amounts of (a-1) and (a-2) are based on the total weight of composition (a), and composition (a) has a melt flow rate MFR2 of from 10 to 50 g/10 min (230° C./2.16 kg) and the Vicat softening temperature in the range of 120 to 155° C. measured according to ISO 306,
• and
• ii) 10 to 40 percent by weight of a plastomer (b) of ethylene copolymer with at least one α-olefin comonomer of 4 to 10 C-atoms, provided that at least one co-monomer is a monomer with at least 6 C-atoms,
• where the amounts of (i) and (ii) are based on the total weight of the composition (A), and wherein the plastomer b) has a density of 880 to 912 kg/m3
• and
• 2) Layer 2 of a polymer composition being different to composition (A).

An extrusion coated article (EC) comprising

• I. a substrate layer (S) and
• II. a heat sealable polymer layer (H),
• wherein the heat sealable polymer layer (H) comprises a composition (A) comprising a blend of
• i) 60 to 90 percent by weight of propylene polymer composition (a) comprising a blend of
• (a-1) 55 to 95 percent by weight of propylene polymer and
• (a-2) 5 to 45 percent by weight of low density ethylene polymer (LDPE) which is a high pressure polyethylene,
• where the amounts of (a-1) and (a-2) are based on the total weight of composition (a), and composition (a) has a melt flow rate MFR2 of from 10 to 50 g/10 min (230° C./2.16 kg) and the Vicat softening temperature is in the range of 120 to 155° C. measured according to ISO 306,
• and
• ii) 10 to 40 percent by weight of a plastomer (b) of ethylene copolymer with at least one α-olefin comonomer of 4 to 10 C-atoms, provided that at least one co-monomer is a monomer with at least 6 C-atoms,
• where the amounts of (i) and (ii) are based on the total weight of the composition (A), and wherein the plastomer (b) has a density of 880 to 912 kg/m3.