Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant
Patent
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
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patent: 3232880 (1966-02-01), Mausner
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patent: 3537814 (1970-11-01), Farr
patent: 3572990 (1971-03-01), Farr
patent: 3723074 (1973-03-01), Sears
patent: 3775315 (1973-11-01), Smith
Connor David
Cuciti Francesco
Lowe Edward James
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