Carbon-fiber-reinforced polyimide resin compositions

Details Carbon-fiber-reinforced polyimide resin compositions Carbon-fiber-reinforced polyimide resin compositions

C - Chemistry, Metallurgy

08

L

400/5809

C08L 79/08 (2006.01) C08J 5/06 (2006.01) C08L 81/06 (2006.01)

Patent

CA 2010411

Provided are carbon-fiber-reinforced polyimide resin compositions having excellent mechanical strength. The compositions are formed of (a) 5-50 parts by weight of carbon fibers, which have been obtained by coating start- ing carbon fibers at surfaces thereof with an aromatic polysulfone resin and then heating the thus-coated carbon fibers at 300-400°C, and (b) 95-50 parts by weight of a polyimide resin which preferably have recurring units of following formula: Image or Image wherein X represents a specific divalent radical and R represents a particular tetra-valent radical.

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