Detergent compositions and processes of making thereof
AssigneeThe Procter & Gamble Company
InventorsShafiq Dhanani, Ronald MacDonald, James S. Clunie, Maxim C. Brooks
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Abstract
Foam-controlled detergent compositions comprising alkoxylated nonionic surfactant, polydimethylsiloxane foam-controller dispersed therein, and siloxane-oxyalkylene copolymer as dispersing agent therefor, the weight ratio of polydimethylsiloxane to dispersing agent lying in the range from 2:1 to 20:1. The compositions preferably also contain particulate silica in a weight ratio of polydimethylsiloxane to silica of from 20:1 to 200:1.
Claims17
A foam-controlled detergent composition comprising from 1.5% to 100% of a mixture of:
- (a) alkoxylated nonionic surfactant,
- (b) polydimethylsiloxane foam controller dispersed in at least part of the alkoxylated nonionic surfactant, and
- (c) siloxane-oxyalkylene copolymer as dispersing agent for the polydimethylsiloxane foam controller,
- wherein the weight ratio of alkoxylated nonionic surfactant to polydimethylsiloxane foam controller is in the range from 10:1 to 100:1 and the weight ratio of polydimethylsiloxane foam controller to siloxane-oxyalkylene copolymer is in the range from 2:1 to 20:1.
A process for making a foam-controlled detergent composition comprising from 1.5% to 100% of a mixture of:
- (a) alkoxylated nonionic surfactant,
- (b) polydimethylsiloxane foam controller, and
- (c) siloxane-oxyalkylene copolymer,
- wherein the weight ratio of alkoxylated nonionic surfactant to polydimethylsiloxane foam controller is in the range from 10:1 to 100:1, and the weight ratio of polydimethylsiloxane foam controller to siloxane-oxyalkylene copolymer is in the range from 2:1 to 20:1, the process comprising forming a surfactant premix comprising at least part of the nonionic surfactant, the polydimethylsiloxane foam controller, and the siloxane-oxyalkylene copolymer and subjecting the premix in fluent form to high shear mixing.
Dependencies are inferred from the claim text.