Patent ID: 8623482

Claim:
A polymer coated pipe comprising a coating layer (B) covering said pipe, wherein the coating layer (B) comprises a coating composition (B-2) having a shear thinning index SHI 2.7/210 of from 40 to 100, the SHI 2.7/210 being determined from oscillatory shear experiments within the linear viscosity range of strain at frequencies from 0.05 to 300 rad/s according to ISO 6721-1 as the ratio of the complex viscosities η (2.7 kPa)/η (210 kPa), wherein the coating composition (B-2) comprises a multimodal ethylene copolymer (B-1), which is a copolymer of ethylene and one or more alpha-olefin comonomers having from 4 to 10 carbon atoms, wherein the multimodal ethylene copolymer (B-1) further comprises: (B-1-1) from 49 to 59% based on the weight of the multimodal ethylene copolymer (B-1) a low molecular weight ethylene homopolymer component, said low molecular weight ethylene homopolymer component (B-1-1) having a weight average molecular weight of from 5000 g/mol to 70000 g/mol; and (B-1-2) from 51 to 41% based on the weight of the multimodal ethylene copolymer (B-1) a high molecular weight ethylene copolymer component, said high molecular weight ethylene copolymer component (B-1-2) having a weight average molecular weight of from 100000 g/mol to 700000 g/mol; and the multimodal ethylene copolymer (B-1) has: a weight average molecular weight of from 70000 g/mol to 250000 g/mol; and a melt index MFR 2 , determined according to ISO 1133 at 190° C. under a load of 2.16 kg, of from 0.05 g/10 min to 5 g/10 min; and a melt index MFR 5 , determined according to ISO 1133 at 190° C. under a load of 5 kg, of from 1.0 to 10 g/10 min; and a density of from 930 kg/m 3 to 955 kg/m 3 ; and a ratio of the weight average molecular weight to the number average molecular weight M w /M n of from 24 to 50; and wherein the coating composition (B-2) has a Shore hardness of at least 57.