Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Removing and recycling removed material from an ongoing...
Patent
1993-03-01
1995-02-07
Nagumo, Mark
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Removing and recycling removed material from an ongoing...
526 79, 526134, 528496, 528499, 525270, 525337, C08F 476
Patent
active
053876601
ABSTRACT:
A process for the polymerization of ethylene and/or one or more alpha-olefins comprising contacting ethylene, and/or the alpha-olefin(s) with a catalyst comprising a first component which is a bis(cyclopentadienyl) Group IVA metal compound containing a substituent capable of reacting with a cation, and a second component which is a compound having a bulky anion containing one or more boron atoms and which is substantially non-coordinating under the reaction conditions and a cation, in which process additional first component is added.
REFERENCES:
patent: 5276238 (1994-01-01), Doyle
Doyle Michael J.
Terlouw Willem
Nagumo Mark
Shell Oil Company
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