Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Effecting a change in a polymerization process in response...
Reexamination Certificate
2011-07-26
2011-07-26
Cheung, William K (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Effecting a change in a polymerization process in response...
C324S457000, C526S074000, C422S139000
Reexamination Certificate
active
07985811
ABSTRACT:
Embodiments of the present invention relate to measuring and controlling static in a gas phase reactor polymerization. In particular, embodiments relate to monitoring carryover static in an entrainment zone during gas phase polymerization to determine the onset of reactor discontinuity events such as chunking and sheeting. Embodiments also relate to monitoring carryover static to determine the need for effective additions of continuity additives that minimize reactor static activity and thereby preventing discontinuity events.
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Agapiou Agapios K.
Goode Mark G.
Hagerty Robert O.
Hussein F. David
Kuo Chi-I
Cheung William K
Univation Technologies LLC
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