C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/50
C02F 1/00 (2006.01) C02F 1/54 (2006.01) C08G 12/32 (2006.01)
Patent
CA 1067221
A B S T R A C T A method for treating a waste liquid which comprises adding to a solution or suspension to be clarified a water-soluble melamine resin con- taining in the molecule a unit expressed by the following formula Image wherein X? represents an anion derived from an inorganic or organic acid, wherein the amino group to which a methylol group is not attached is cationic.
217779
Kuwabara Kiyoaki
Nakajima Mikio
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