C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/307, 402/318
C08F 20/04 (2006.01) C08F 8/44 (2006.01) C08F 22/02 (2006.01) C08F 220/04 (2006.01) C08F 222/02 (2006.01) C11D 3/37 (2006.01)
Patent
CA 2031998
Certain polymeric polycarboxylic acids and salts containing hydroxyl or hydroxymethyl groups in close proximity to carboxyl groups, especially poly(2-hydroxymethylacrylic) acid and its salts, are effective sequestrants of divalent and polyvalent metal ions and are useful as builders in detergent compositions.
Khoshdel Ezat
Kralingen Cornelis Gerhard Van
Bereskin & Parr
Plc Unilever
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