Process for producing hydrogenated C9 petroleum resin and hydrogenated C9 petroleum resin obtained by the process

摘要

Disclosed is a process for preparing a hydrogenated C₉ petroleum resin, the process comprising hydrogenating a C₉ petroleum resin obtained by polymerizing polymerizable monomers of a C₉ fraction using a non-phenolic Friedel-Crafts catalyst in the presence or absence of a non-phenolic molecular weight modifier. The hydrogenated C₉ petroleum resin obtained according to the present invention retains the characteristics of known hydrogenated C₉ petroleum resins and has high thermal stability, good light resistance, and remarkably low fluorescence.