Process for the preparation of petroleum resins

Details Process for the preparation of petroleum resins Process for the preparation of petroleum resins

1977-08-05

1978-10-03

Wong, Jr., Harry

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

260 5, 260888, 260889, 260894, 526290, C08F24000

Patent

active

041185552

ABSTRACT:
Petroleum resins are prepared by subjecting to pre-polymerization a hydrocarbon fraction containing olefins and diolefins, having a boiling range of from 30.degree. to 300.degree. C, in the presence of activated clays, recovering from the pre-polymerization products a selected hydrocarbon fraction having a boiling point not exceeding 250.degree. C, mixing this selected fraction with a hydrocarbon fraction containing unsaturated hydrocarbons with an average of 5 carbon atoms per molecule, subjecting the resulting mixture to polymerization in the presence of a Friedel-Crafts catalyst and recovering the petroleum resins from the polymerization products. These petroleum resins form homogeneous mixtures with rubber.

REFERENCES:
patent: 2764577 (1956-09-01), Hubbard et al.
patent: 2779750 (1957-01-01), Fuqua et al.
patent: 3905948 (1975-09-01), Varqiu et al.

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