Nikaido, Marmelstein, Murray & Oram
Sizing agent for carbon fiber and carbon fiber treated with said sizing agent
 A sizing agent for carbon fibers which comprises, as the indispensable ingredients, an epoxy resin having a viscosity of more than 1,000 P but up to 20,000 P at 50 .degree. C. and a urethane compound prepared from a polyol having an oxyalkylene unit with a polyisocyanate. 
Sanyo Chemical Industries, Ltd. Toray Industries, Inc.
D
D01F
inventional
Itsuki Atsushi Toyokazu Motoi Hiroshi Manabu
Taniguchi Sumida Minakuchi Itoh Hasegawa Saito