OIL AGENT COMPOSITION FOR CARBON FIBER PRECURSOR ACRYLIC FIBER, CARBON FIBER PRECURSOR ACRYLIC FIBER BUNDLE, AND METHOD FOR PRODUCING THE SAME

摘要

Disclosed is an oil agent composition which enables to improve lowering in operability in a case where an oil agent composition mainly containing a silicone compound is used. This oil agent composition also enables to improve deterioration in physical properties of a carbon fiber bundle in a case where a non-silicone oil agent composition is used. Specifically disclosed is an oil agent composition for carbon fiber precursor acrylic fibers, which is characterized by containing 1-10 wt% of a modified polydimethylsiloxane which has a unit containing a specific alkyl chain, and at least one unit selected from a unit containing a specific polyethylene oxide chain, a unit containing a specific polyglycerin chain and a unit containing a specific polyether chain, while optionally having a unit containing a specific polydimethylsiloxyalkyl chain.