Graft-modified ultrahigh-molecular-weight polyethylene and...

Details Graft-modified ultrahigh-molecular-weight polyethylene and... Graft-modified ultrahigh-molecular-weight polyethylene and...

C - Chemistry, Metallurgy

08

F

400/2054

C08F 255/02 (2006.01)

Patent

CA 1224297

ABSTRACT A graft-modified ultrahigh-molecular-weight polyethylene obtained by grafting (A) an ultrahigh- molecular-weight polyethylene having an inherent vis- cosity [?], determined at 135°C in decalin, of at least 5 dl/g with (C) an unsaturated carboxylic acid graft- copolymerizable therewith or its graft-copolymerizable derivative, under melt-kneading condition in the presence of (B) an aliphatic compound having a melting point, determined by the DSC method, of at least 10°C and a boiling point of at least 130°C, an amount of the com- ponent (C) grafted in said graft-modified ultrahigh- molecular-weight polyethylene being 0.01 to 10% by weight, and said graft-modified ultrahigh-molecular- weight polyethylene being substantially free of an insoluble gel product and having a tensile strength of at least 1.0 GPa; and a process for producing the same.

489401

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