High molecular weight polymers containing pendant salicylic...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

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C526S288000, C526S304000, C526S306000, C526S318000, C526S318100, C526S320000, C526S321000, C526S326000, C524S833000, C210S733000, C210S735000

Reexamination Certificate

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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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