Process for producing hydrogenated C9 petroleum resin and hydrogenated C9 petroleum resin obtained by the process
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United States of America Patent
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Oct 1, 2002
Grant Date -
N/A
app pub date -
May 8, 2000
filing date -
Sep 30, 1998
priority date (Note) -
Expired
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Abstract
Disclosed is a process for preparing a hydrogenated C.sub.9 petroleum resin, the process comprising hydrogenating a C.sub.9 petroleum resin obtained by polymerizing polymerizable monomers of a C.sub.9 fraction using a non-phenolic Friedel-Crafts catalyst in the presence or absence of a non-phenolic molecular weight modifier. The hydrogenated C.sub.9 petroleum resin obtained according to the present invention retains the characteristics of known hydrogenated C.sub.9 petroleum resins and has high thermal stability, good light resistance, and remarkably low fluorescence.
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