Petroleum resins

Details Petroleum resins Petroleum resins

1975-02-27

1976-10-19

Holler, Alan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260879, 526 76, C08F24000, C08F25500, C08F27900

Patent

active

039871231

ABSTRACT:
High softening point resins are prepared by a process which comprises polymerizing in the presence of a Friedel-Crafts catalyst a mixture of (1) a feedstock comprising C.sub.5 olefins and diolefins, C.sub.6 olefins and diolefins or a mixture of C.sub.5 and C.sub.6 olefins and diolefins, said feedstock being obtained from the steam-cracking of petroleum feedstock and (2) a polymer obtained by the thermal or cationic polymerization of dicyclopentadiene, an alkyl cyclopentadiene dimer, a codimer of cyclopentadiene with an alkyl cyclopentadiene, a codimer of cyclopentadiene or an alkyl cyclopentadiene with a C.sub.5 or a C.sub.6 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.

REFERENCES:
patent: 2798865 (1957-07-01), Banes et al.
patent: 3709854 (1973-01-01), Hepworth et al.
patent: 3817953 (1974-06-01), Younger
patent: 3905948 (1975-09-01), Vargiu et al.

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