Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymerizing in two or more physically distinct zones
Patent
1994-04-01
1997-07-15
Weber, Thomas R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymerizing in two or more physically distinct zones
526 86, C08F 214
Patent
active
056484380
ABSTRACT:
The invention provides a continuous process for catalytically polymerizing a monomer feed of ethylene and at least one comonomer which comprises introducing a catalyst including a bulky ancillary ligand transition metal compound and monomer feed in an upstream reaction zone for polymerization, introducing further catalyst in a downstream reaction zone for further polymerization, the peak temperature in the downstream reaction zone being at least 50.degree. C. higher than in the upstream zone and being above 150.degree. C. The process economically produces polymer of good properties which is melt processable.
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Baron Norbert
Domine Joseph D.
Folie Bernard J.
Henry David T.
McLain Doulgas J.
Exxon Chemical Patents Inc.
Weber Thomas R.
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