HOMOGENEOUS, HIGH MODULUS ULTRAHIGH MOLECULAR WEIGHT POLYETHYLENE COMPOSITES AND PROCESSES FOR THE PREPARATION THEREOF

摘要

Homogeneous composite which comprises (a) from about 0.5 to 90% by weight of a linear polyethylene ultrahigh molecular weight having a molecular weight of at least about 400,000, a crystalline melting point of 143 ° C, said lower melting point to the consolidation being at least 3 ° C, and a crystal morphology having a bimodal distribution spacings of the folds of the molecular chain reflecting significant populations of both folded molecular chains that greatly extended and ( b) from about 0.5 to 90% by weight of at least one filler compound having a neutral surface to acid, said polyethylene being polymerized onto the surface of said filler, said composite being substantially free of filler free of polymer and polymer-free filler. said composite preparation methods are also described.