Antistatic ultra high molecular weight polyethylene
AssigneeQuadrant Epp AG
InventorsUwe Hollad, Matthias Luebbering, David Didier
Life of this patent
Estimating the term…
Abstract
White or near-white antistatic ultra-high molecular weight polyethylene (UHMWPE) is obtained by consolidating a mixture of UHMWPE powder and an organic antistat at high pressure and elevated temperature. The organic antistat is preferably a non-ionic solid which has been cryogenically ground to fine particle size.
Claims18
An antistatic UHMWPE consolidated product having a resistivity of less than 1·1011 Ω/square, comprising UHMWPE and at least one organic antistat, said organic antistat, when blended with UHMWPE powder and subsequently consolidated, providing a substantially white UHMWPE product in the absence of dyes and pigments.
An antistatic consolidated UHMWPE product having a surface resistivity of <1011 Ω/square, comprising a consolidated blend of UHMWPE powder and at least one cryogenically ground organic antistat.
Dependencies are inferred from the claim text.