C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
134/5
C11D 3/395 (2006.01) C11D 3/08 (2006.01) C11D 3/39 (2006.01)
Patent
CA 1180971
ABSTRACT OF THE DISCLOSURE The present invention relates to a process for making a powder detergent of improved solubility. The process comprises mixing about 10-60% builder, about 0.6-6% sur- factant, about 20-50% alkaline agent and 0-70% filler, about 10-30% of solid alkali metal silicate and a bleaching agent selected from the group of active chlo- rine or oxygen containing compounds providing about 0.4-1.5% available chlorine or the equivalent thereof in such order that the addition of the alkali metal silicate is made after or in combination with the alkaline agent, the pH of the resulting finished product being about 10.4 or greater at about a 0.25% product use concentration.
404437
Lopez Jose A.
Rapisarda Anthony A.
Romeo Joseph
Bereskin & Parr
Plc Unilever
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