Ultrahigh molecular weight polyethylene and lightly-filled...

Details Ultrahigh molecular weight polyethylene and lightly-filled... Ultrahigh molecular weight polyethylene and lightly-filled...

C - Chemistry, Metallurgy

08

F

C08F 110/02 (2006.01) A61L 27/00 (2006.01) A61L 27/44 (2006.01) B29C 43/00 (2006.01) C08F 2/44 (2006.01) C08F 292/00 (2006.01) C08L 23/06 (2006.01)

Patent

CA 2108162

Homogeneous, particulate composites are provided, of about 75 - 99.5 weight percent ultrahigh molecular weight polyethylene (UHMWPE) and about 0.5 - 25 weight percent of at least one filler compound, and wherein the composites have a surface area of at least about 4 m2/g. The particulate UHMWPE is also provided without the filler. Dense, load-bearing articles of these materials are formed by cold-pressing and free-sintering procedures. Cold-pressable, free-sinterable blends of commercial UHMWPE containing at least 25 weight percent of the composites or unfilled UHMWPE of the invention are also provided.

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