C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
134/3.1
C11D 1/66 (2006.01) C09K 8/035 (2006.01) C11D 3/02 (2006.01) C11D 3/20 (2006.01) C11D 3/26 (2006.01) C11D 11/02 (2006.01) C11D 17/06 (2006.01)
Patent
CA 1143236
- 16 - cC.1048 ABSTRACT The autoxidation of aqueous detergent slurries containing major quantities of nonionic surfactant during spray-drying is inhibited by the use of a charge-transfer agent. The charge-transfer agent may be a charge-transfer acceptor or a charge-transfer donor or a precursor of either of these. The agent may be present in an amount of from 0.05 to 2% by weight and the nonionic surfactant in an amount of 3% or more by weight based on the weight of the fully formulated detergent powder. The preferred charge- transfer agent is potassium iodide.
351940
Coxon Andrew C.
Edge David J.
Lapper Mark L.l.
Ridout & Maybee Llp
Unilever Limited
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