Toray Industries, Inc.

Tomohisa Noguchi

Tomoko Ichikawa

Fumihiko Tanaka

Haruki Okuda

Kazuki Yoshihiro

Takayuki Yomo

Yusuke Hiraike

A carbon fiber bundle is characterized in that a ratio (n/N) of a number n of pairs wherein a flaw of 50 nm in size or more is present on at least one of the fracture surfaces forming the pair to a total number N of pairs of fiber fracture surfaces selected at random after performing a single fiber tensile test for a gauge length of 10 mm is 35% or less, and in that a single-fiber diameter d is 4.3 &#x3bc;m or more.

Carbon fiber bundle and method of manufacturing same

Provided is a sizing-coated carbon fiber bundle that exhibits good spreadability in a step for spreading sizing-coated carbon fibers even in the case in which said carbon fibers exhibit a high adhesiveness with respect to a thermoplastic resin. Provided is a sizing-coated carbon fiber bundle that contains, as sizing components, at least a compound (A) containing an amino group or an amide group.

Sizing-coated carbon fiber bundle, thermoplastic resin composition, molded body, method for manufacturing sizing-coated carbon fiber bundle, and method for manufacturing molded body

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Ehime, Japan

Tomohisa Noguchi