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US 4,395,546 AGranted
N-Methylolcarboxamide compounds
AssigneeCiba-Geigy Corporation
InventorsJeroslav Haase, Peter Liechti, Hans Wegmuller, Rudolf F. Wurster, Quentin Bowes
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Abstract
A novel process for the purification of industrial effluents, wherein the effluents are brought into contact with cationically modified cellulose-containing materials, the cationic constituent of which is bonded to the cellulose part via the grouping of the general formula --O--CH.sub.2 --N< in which the nitrogen belongs to an amide group of the cationic constituent and the oxygen is bonded to the cellulose part.
Claims5
A basic methylolamide compound of the formula
- or a salt thereof,
- in which
- R.sub.1 and R.sub.2, together with the nitrogen atom which links them, denote a pyrrolidinyl, piperidino, morpholino or piperazinyl radical,
- Q denotes an alkylene- or alkyl-substituted alkylene chain with 2 to 8 carbon atoms and Y denotes hydrogen, lower alkyl or --CH.sub.2 OH.
1 more element
Dependencies are inferred from the claim text.