Amine polyphosphates

Details Amine polyphosphates Amine polyphosphates

C - Chemistry, Metallurgy

11

D

134/3.2

C11D 3/06 (2006.01)

Patent

CA 1050381

ABSTRACT OF THE DISCLOSURE Novel organic polyphosphate mixtures comprising a plurality of polyphosphate salts of one or more primary, secondary or tertiary amines are obtained by a process comprising 1) forming an aqueous polyphosphoric acid solution comprising from 80 to 88% by weight of phosphorus pentoxide and 2) reacting said polyphosphoric acid solution with a primary, secondary or tertiary amine in such a way as to avoid hydrolysis of the polyphosphate species. Such mixtures are useful as builders in liquid cleaning compositions comprising surface active agents or alkali metal hydroxides or silicates with which they are more compatible in aqueous solution than previously used polyphosphate builder salts. - 1 -

210447

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