Patent ID: 8362097
Filing Date: 2013-01-29
Classification: C08F,C08J,C08L,Y10T

Abstract:
1. A porous article prepared by free sintering a polyethylene powder at a temperature between 140° C. and 300° C., wherein the polyethylene powder comprises particles having porous particle morphology and porous surface features, a molecular weight within the range of from about 600,000 g/mol to about 1,800,000 g/mol as determined by ASTM 4020, a monomodal molecular weight distribution, an average particle size in the range of from about 5 microns to about 1000 microns, and a powder bulk density in the range of from about 0.10 to about 0.30 g/cc and the porous article has a porosity of between about 30% and about 85%, a flexural strength of at least about 0.7 MPa and an average pore size between about 5 μm and 100 μm.