Maruzen Petrochemical Company, Limited

Yoshikazu Iizima

Keisuke Matsushita

Tomoki Hayashi

To provide a novel production method for a hydrogenated petroleum resin that does not cause filter clogging and is also capable of suppressing a significant decrease in catalytic activity in hydrogenation in a production method for a dicyclopentadiene/vinyl aromatic compound-based hydrogenated resin to be used as a tackifier. A production method for a dicyclopentadiene/vinyl aromatic compound-based hydrogenated petroleum resin, in which a reaction product obtained by reacting a dicyclopentadiene with a vinyl aromatic compound is subjected to thermal polymerization, thereby obtaining a thermal polymerization reaction product, followed by hydrogenation thereof, characterized in that as the thermal polymerization reaction product, an oligomer-removed thermal polymerization reaction product obtained by removing a dicyclopentadiene oligomer from the thermal polymerization reaction product is used as a hydrogenation raw material.

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Ichihara, Japan

Yoshikazu Iizima