Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Reexamination Certificate
2011-08-30
2011-08-30
Lipman, Bernard (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
C525S329400, C525S384000, C525S386000, C528S001000, C530S410000
Reexamination Certificate
active
08008430
ABSTRACT:
A high molecular weight, water-soluble polymer comprising pendant salicylic acid groups and having a weight average molecular weight of at least about 2,000,000 daltons and use of the polymer for clarifying red mud-containing liquors generated in the Bayer process for the recovery of alumina from bauxite.
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Brammer, Jr. Larry E.
Kildea John D.
Mahoney Robert P.
Malito John T.
Phillips Everett C.
Bishop Joshua D.
Lipman Bernard
Martin Michael B.
Nalco Company
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