Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1994-03-22
1994-11-29
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526296, 526347, C08F 1216, C08F 1416
Patent
active
053692020
ABSTRACT:
A process for the solventless polymerization of brominated styrenes includes blending monomers of brominated styrenes with a polymerization initiator, feeding the monomer/polymerization initiator mix into a prepolymerizer wherein the monomers begin to polymerize, and feeding the monomer/polymerization initiator mix and the partially polymerized bromostyrene into a screw-type extruder to drive the polymerization to a high degree of completion in a short period of time. Optionally, the monomers may be preheated before mixing with the initiator, or a heater may be included in the prepolymerizer.
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patent: 3794471 (1971-08-01), Latinen
patent: 4412051 (1983-10-01), de Man et al.
patent: 4755573 (1988-07-01), Aycock
CAS Abstract 85:63979 of JP 51/47034 to Hirohisa, dated Apr. 22, 1976.
I. Konigsberg and J. Jagur-Grodzinski, "Anionic Polymerization and Copolymerization of p-Bromostyrene," J. Polym. Sci., Polymn. Chem. Ed. 21(9), 2649-63 (1983).
Atwell Ray W.
Favstritsky Nicolai A.
Fielding William R.
Hodgen Harry A.
Termine Enrico J.
Great Lakes Chemical Corporation
Sarofim N.
Schofer Joseph L.
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