Scale-reducing additive for automatic dishwashing systems

Details Scale-reducing additive for automatic dishwashing systems Scale-reducing additive for automatic dishwashing systems

C - Chemistry, Metallurgy

11

D

C11D 3/37 (2006.01) C11D 3/33 (2006.01) C11D 7/22 (2006.01)

Patent

CA 2731832

An automatic dishwashing detergent composition having at least two components. The first component is a polymer containing polymerized residues of at least one C3-C6 carboxylic acid monomer and a hydroxy end group. The second component is a biodegradable builder selected from among nitrilotriacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, glycine-N,N-diacetic acid, methylglycine-N,N- diacetic acid, 2-hydroxyethyliminodiacetic acid, glutamic acid-N,N-diacetic acid, 3-hydroxy- 2,2'-iminodisuccinate, S,S-ethylenediaminedisuccinate aspartic acid-diacetic acid, N,N'- ethylenediamine disuccinic acid, iminodisuccinic acid, aspartic acid, aspartic acid-N,N- diacetate, beta-alaninediacetic acid, polyaspartic acid, salts thereof and combinations thereof.

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