Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1975-01-03
1977-02-15
Wong, Jr., Harry
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
428343, 526290, C08F24000
Patent
active
040083608
ABSTRACT:
A process for producing a petroleum resin which comprises polymerizing in the presence of a Friedel-Crafts catalyst a C.sub.5 -fraction from cracked naphtha or oil gas, which has been subjected to an adjustment of a weight ratio of acyclic diolefins to monoolefins and a weight ratio of cyclic diolefins to monoolefins to from 0.40 to 0.70 and from 0.07 to 0.35, respectively.
REFERENCES:
patent: 3554940 (1971-01-01), Arakawa et al.
patent: 3661870 (1972-05-01), Bullard
patent: 3692756 (1972-09-01), St. Cyr
patent: 3763125 (1973-10-01), Moody et al.
Kitagawa Yoshihiko
Kudo Ken-ichi
Kuribayashi Hideyuki
Sumitomo Chemical Company Limited
Wong, Jr. Harry
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