| 摘要 |
PROBLEM TO BE SOLVED: To provide a flow-improving agent which can remarkably improve low-temperature flow not only for a fuel oil having a wider range of boiling point at distillation, but also for a fuel oil having a smaller range of boiling point at distillation, by the addition of smaller amount than conventional agents, and has good solubility to base oil and no problem in filter clogging, and to provide a fuel oil additive composition and a fuel oil composition. SOLUTION: The fuel oil flow-improving agent comprises a copolymer (A) which comprises the unit derived from ethylene (a) and an aromatic ring- containing monomer (b) as the essential constituting unit. The fuel oil additive composition comprises the flow-improving agent, and the fuel oil composition comprises the flow-improving agent or the fuel oil additive composition. COPYRIGHT: (C)2004,JPO
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