Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymerizing in tubular or loop reactor
Patent
1988-08-02
1991-05-07
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymerizing in tubular or loop reactor
526 66, 526 67, 526 68, 526 72, 526 88, 526169, 526280, 526348, 5265482, 526918, 526922, 525 52, 525 53, 525197, 525236, 525240, 252 43, C08F 200
Patent
active
050138014
ABSTRACT:
Polymer having a polymodal MWD ethylene copolymer are prepared by conducting the polymerization in a substantially mix free reactor using an essentially transfer agent free reaction mixture, the reaction being carried out in a manner such that the propagation of essentially all copolymer chains is initiated simultaneously. In carrying out the process of this invention, the catalyst components are premixed and aged prior to introduction into the reactor. The process is preferably carried out in a tubular reactor using VCl.sub.4 and aluminum sesquichloride as the catalyst system.
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Cozewith Charles
Ju Shiaw
Verstrate Gary W.
Schofer Joseph L.
Walker Alex H.
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