|5595720||Method for producing carbon fiber|
A method for producing carbon fiber comprising applying an infusibilization to a pitch fiber yarn made using mesophase pitch as a starting material in a state with substantially no tension applied to the yarn and in an oxidizing gas atmosphere including n...
|5425931||Small diameter pitch-based carbon fiber bundle and production method thereof|
A bundle of pitch-based carbon fibers which is composed of 1000 to 100,000 continuous fiber filaments having an average diameter of 4 to 8 μm, a filament tensile strength of at least 3.0 GPa, and a modulus of at least 600 GPa, and also a method for produ...
|5037589||Method of producing mesophase pitch type carbon fibers and nozzle for spinning same|
In a method of producing mesophase pitch based carbon fibers, including the steps of melt-spinning a mesophase pitch through a nozzle (1) having at least one pair of a counter-bore (2) and a circular capillary (3) to form a pitch fiber and subjecting the ...