Petroleum resins

Details Petroleum resins Petroleum resins

C - Chemistry, Metallurgy

10

C

196/35

C10C 3/00 (2006.01) C08F 277/00 (2006.01) C09D 11/10 (2006.01)

Patent

CA 1039673

ABSTRACT High softening point resins are prepared by a process which comprises polymerising in the presence of a Friedel-Crafts catalyst a mixture of (1) a feedstock comprising C5 olefins and diolefins, C6 olefins and diolefins or a mixture of C5 and C6 olefins and diolefins, said feedstock being obtained from the steam- cracking of petroleum feedstock and (2) a polymer obtained by the thermal or cationic polymerisation of dicyclopentadiene, an alkyl cyclopentadiene dimer, a codimer of cyclopentadiene with an alkyl cyclopentadiene, 8 codimer of cyclopentadiene or an alkyl cyclopentadiene with a C5 or a C6 conjugated linear or non-cyclic diolefin, or a mixture of said dimer and codimers. The resin may be mixed with rubber to make a pressure-sensitive adhesive.

221131

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