Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2006-11-21
2006-11-21
Pezzuto, Helen L. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S288000, C526S304000, C526S306000, C526S318000, C526S318100, C526S320000, C526S321000, C526S326000, C524S833000, C210S733000, C210S735000
Reexamination Certificate
active
07138472
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.
Breininger Thomas M.
Martin Michael B.
Nalco Company
Pezzuto Helen L.
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