Polyethylene molding powder and porous articles obtained from the.

A molding powder comprising a polyethylene polymer, wherein the polyethylene polymer has a molecular weight ranging from 600,000 g / mol to 2,700,000 g / mol as determined by ASTM 4020, an average particle size in ranging from 5 to 1,000 mim mim, and a bulk density of powder in the range from 0.10 to 0.30 g / cm3, and wherein the powder exhibits a characteristic flexural strength of at least 0.7 MPa as it determined in the form of a disc of 140 mm diameter having a thickness of 6.25 mm by way of the above procedure, sintering the part for 25 minutes at 220C, and measuring the flexural strength of the disk according with DIN ISO 178.