Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymerizing in two or more physically distinct zones
Patent
1974-08-12
1976-04-20
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymerizing in two or more physically distinct zones
260 336PQ, 526 77, 526291, 526284, C08F21000, C08F21200, C08F24000
Patent
active
039519287
ABSTRACT:
In the production of a petroleum resin an unsaturated hydrocarbon feedstock is continuously polymerised by means of a Friedel-Crafts catalyst in a plurality of alternating polymerisation and cooling zones in which catalyst is added to each polymerisation zone.
REFERENCES:
patent: 2894937 (1959-07-01), Banes et al.
patent: 3628918 (1971-12-01), Beals
patent: 3709854 (1973-01-01), Hepworth et al.
patent: 3763125 (1973-10-01), Moody et al.
Clingman A. L.
Imperial Chemical Industries Limited
Schofer Joseph L.
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