Novel organopolyphosphates in aqueous cleaning compositions

Details Novel organopolyphosphates in aqueous cleaning compositions Novel organopolyphosphates in aqueous cleaning compositions

1973-12-07

1977-03-29

Albrecht, Dennis L.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

252121, 252135, 252173, 252526, 252540, 252545, 252DIG14, C11D 3065, C11D 330, C11D 336, C11D 1708

Patent

active

040148068

ABSTRACT:
Novel organic polyphosphate mixtures are made by a process comprising a mixture of a plurality of polyphosphate salts of one or more primary, secondary or tertiary amines; which mixture has been obtained by a process comprising (1) forming an aqueous polyphosphoric acid solution comprising from 80 to 88% by weight of phosphorus penitoxide; (2) reacting said polyphosphoric acid solution with a primary, secondary or tertiary amine at a pH of from 4 to 12 and at a temperature of from 15 to 70.degree. C.
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 then are previously used polyphosphate builder materials.

REFERENCES:
patent: 2338987 (1944-01-01), Watzel
patent: 2906601 (1959-09-01), Koster
patent: 2950961 (1960-08-01), Striplin
patent: 3122508 (1964-02-01), Grifo
patent: 3147295 (1964-09-01), Laughlin
patent: 3232880 (1966-02-01), Mausner
patent: 3328309 (1967-06-01), Grifo
patent: 3537814 (1970-11-01), Farr
patent: 3572990 (1971-03-01), Farr
patent: 3723074 (1973-03-01), Sears
patent: 3775315 (1973-11-01), Smith

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