Patent ID: 6433104
Filing Date: 2002-08-13
Classification: C08C,C08F

Abstract:
A one-stage hydrogenation process comprising:(a) introducing into a reactor hydrocarbon resin having from about 50 ppm by weight to about 2000 ppm by weight one or more halogen residues, said resin having a softening point X, where X is a temperature in the range of from about 70Â° C. to about 150Â° C.; (b) hydrotreating the resin in the reactor with a catalyst using pressure of not more than 2000 psi at a temperature in the range of from about 100Â° C. to about 350Â° C. thereby producing at least 350 tons of polymer per ton of catalyst, wherein said catalyst is used for at least 800 hours; and (c) recovering from the reactor hydrotreated resin having a softening point of no less than Xâˆ’8Â° C.