Idemitsu Kosan Company, Limited

Chisato Endo

Masashi Nakamura

Masami Takasaki

Meishi Tanaka

Hisao Anzai

A process oil which satisfies the requirements of (a) a content of a polycyclic aromatic compound of less than 3% by weight, (b) a content of an aromatic hydrocarbon of 18% by weight or more, (c) a content of a polar compound ranging from 11 to 25% by weight, (d) a kinematic viscosity at 100&deg; C. ranging from 10 to 70 mm /s, and (e) a flash point of 210&deg; C. or more.

Process oil, process for producing the same and rubber composition

Process oil which satisfies requirements that a content of a polycyclic aromatic compound is less than 3% by weight, a content of an aromatic hydrocarbon is 18% by weight or more, a content of a polar compound is between 11 and 25% by weight, a kinematic viscosity at 100&deg; C. is between 10 and 70 mm /s, and a flash point is 210&deg; C. or more.

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Chiba, Japan

Chisato Endo