Polyethylene powders and porous articles made therefrom
OwnerJens Ehlers, Kerstin Lüdtke +3inventors
InventorsJens Ehlers, Kerstin Lüdtke, Julia Hufen, Ramesh Srinivasan, Björn Rinker
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Abstract
A polyethylene powder is described having a molecular weight in the range of from 3,000,000 g/mol to less than 4,000,000 g/mol as determined by ASTM 4020 and a bulk density of 0.10 to 0.20 g/cm3. On sintering, the polyethylene powder produces a porous article having an elastic modulus of at least 90 MPa.
Claims13
A polyethylene powder having a molecular weight in the range of from 3,000,000 g/mol to less than 4,000,000 g/mol as determined by ASTM 4020 and a bulk density of 0.10 to 0.20 g/cm3.
A porous article produced by sintering a polyethylene powder having a molecular weight in the range of from about 3,000,000 g/mol to less than 4,000,000 g/mol as determined by ASTM 4020 and having a bulk density of about 0.10 to about 0.20 g/cm3, the porous article having a porosity greater than 70% and an elastic modulus of at least 90 MPa.
Dependencies are inferred from the claim text.