Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant
Patent
1986-01-08
1988-11-08
Lieberman, Paul
Compositions
Compositions containing a single chemical reactant or plural...
Organic reactant
25217414, 252530, 252534, 252537, C11D 712, C11D 714
Patent
active
047832819
ABSTRACT:
A spray-dried detergent powder contains from 15 to 40% by weight of anionic surfactant, from 20 to 70% by weight of sodium carbonate, from 5 to 20% by weight of sodium silicate and from 1 to 7.5% by weight of sodium bicarbonate, the weight ratio of sodium bicarbonate to sodium silicate being within the range of from 0.20:1 to 0.45:1. Optionally further sodium bicarbonate (up to 15% by weight) is postdosed to the spray-dried powder. The benefits of the invention are improved powder properties and, when further sodium bicarbonate is postdosed, mildness to hands.
REFERENCES:
patent: 4075117 (1978-02-01), Morton et al.
patent: 4299716 (1981-11-01), Cottrell et al.
Bishop David P.
Knight Peter C.
Russell Peter J.
Farrell James J.
Le Hoa Van
Lever Brothers Company
Lieberman Paul
McGowan, Jr. Gerard J.
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