C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 120/56 (2006.01) C08L 33/26 (2006.01)
Patent
CA 2044554
66530-495 ABSTRACT OF THE DISCLOSURE The present invention provides in a process of the type where the acrylamide content of acrylamide polymers is reduced by treating these polymers with sulfites the improvement which comprises conducting such treatments in an oxygen free atmosphere whereby there is no subsequent substantial reduction in the RSV of the treated polymer. The invention allows treatment of acrylamide polymers with sulfites while maintaining the floculant properties of the polymers.
Sarkar Jawed M.
Selvarajan Radhakrishnan
Wetegrove Robert L.
Nalco Chemical Company
Smart & Biggar
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