Abstract: The present invention relates to a film comprising linear low-density polyethylene having a hexane extractables content as measured according to ASTM D-5227:95 of less than 2.5 wt % and a film RMS roughness measured by AFM according to point 4.2.2 ISO 4287:1997 of lower than 40 nm and/or an average roughness measured according to point 4.2.1 of ISO 4287:1997, of lower than 30 nm and a melt index (MI) measured according to ASTM D1238 at a temperature of 190° C. and a load of 2.16 kg of higher than 1.0 g/10 min.

Abstract: The invention is directed to a polyethylene composition comprising 20-90 wt % of a LLDPE A and 80-10 wt % of a LLDPE B, wherein i) LLDPE A is obtainable by a process for producing a copolymer of ethylene and another ?-olefin in the presence of an Advanced Ziegler-Natta catalyst, ii) LLDPE B is obtainable by a process for producing a copolymer of ethylene and another ?-olefin in the presence of a metallocene catalyst.

Abstract: A pipe including polyethylene produced in the presence of a solid catalyst and a co-catalyst, wherein the solid catalyst is prepared by the steps of: (a) contacting a dehydrated support having hydroxyl groups with a compound of formula MgR1R2; (b) contacting the product of step (a) with modifying compounds (A), (B) and (C), wherein: (A) is carboxylic acid, carboxylic acid ester, ketone, acyl halide, aldehyde or alcohol; (B) is of formula R11f(R12O)gSiXh wherein f, g and h 0 to 4 and the sum of f, g and h=4 provided that when h=4 then compound (A) is not an alcohol; (C) is a compound of formula (R13O)4M, wherein M is a titanium atom, a zirconium atom or a vanadium atom; and (c) contacting the product of step (b) with a titanium halide TiX4, whereby the polyethylene has a molecular weight of 720,000 to less than 2,500,000 g/mol.

Abstract: The present invention relates to a film for use in plasticulture that comprises at least a first layer of a thermoplastic polymer composition, said thermoplastic polymer composition comprising a linear low-density polyethylene having a melt index (MI) measured according to ASTM D1238 at a temperature of 190° C. and a load of 2.16 kg of higher than 1.0 g/10 min and at most 10.0 g/10 min, whereby the film has an RMS roughness measured by AFM according to point 4.2.2 of ISO 4287:1997 of lower than 40 nm, and/or an average roughness measured by AFM according to point 4.2.1 of ISO 4287:1997 of lower than 30 nm.