Polyacetals, preparation thereof from dialdehydes and...

Details Polyacetals, preparation thereof from dialdehydes and... Polyacetals, preparation thereof from dialdehydes and...

C - Chemistry, Metallurgy

08

G

402/102

C08G 16/02 (2006.01) C08G 4/00 (2006.01) C11D 3/37 (2006.01)

Patent

CA 1278139

Abstract of the Disclosure: Polyacetals obtainable by reaction of a) a dialdehyde of the formula OHC - An - CHO where A = C1-C4-alkylene or Image and n is 0 or 1, is reacted with b) a polycarboxylic acid of 5 to 7 carbon atoms which contains not less than 3 OH groups, in a molar ratio (a):(b) of 1:0.25 to 4 in an aqueous medium in the presence of an acid catalyst, are used as additives in washing agents and as complexing agents for heavy metal ions.

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