Molecularly oriented, silane-crosslinked ultra-high- molecular-weight polyethylene molded article and process for preparation thereof

Abstract From the Canadian patent

If ultra-high-molecular-weight polyethylene having an intrinsic viscosity (?) of at least 5 d?/g is grafted with a silane compound in the presence of a radical initiator and extrusion-molded and the extrudate is impregnated with a silanol condensation catalyst after or during drawing and is then exposed to water to effect crosslinking, there is obtained a novel molecularly oriented molded article in which increase of the melting temperature, which is not observed in conventional drawmolded or crosslinked molded articles of polyethylene can be attained, and even if this molecularly oriented molded article is exposed to a temperature of 180°C for 10 minutes, the molded article is not fused …