Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Removing and recycling removed material from an ongoing...
Reexamination Certificate
2005-03-08
2005-03-08
Cheung, William (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Removing and recycling removed material from an ongoing...
C526S090000, C526S127000, C526S160000, C526S329200, C526S348000, C526S348200, C526S348400, C526S348500, C526S336000
Reexamination Certificate
active
06864332
ABSTRACT:
A process for polymerizing monomers in the gas phase, in fluidized bed reactors is described, where unsaturated, gas phase monomers are fed into the reactors in the presence of a mixture of inert diluents having a composition that allows the dew point to be adjusted, this leading to high production rates under stable operation in a non condensed operation mode.
REFERENCES:
patent: 3969470 (1976-07-01), Spiegelman
patent: 5681908 (1997-10-01), Mehra et al.
Barlem Tamara
Braganca Antonio Luiz Duarte
Miro Cid Neto
Morschbacker Antonio Luiz Ribeiro de Castro
Mukherjee Arj
Birch & Stewart Kolasch & Birch, LLP
Braskem S.A.
Cheung William
Convex International
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