Fabric conditioning composition
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsKaren Jane Ellson, Mansur Sultan Mohammadi
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Abstract
Fabric softening compositions with 1-10% by weight of cationic fabric softening compound show a surprising increase in viscosity when a fatty acid partial ester of a polyhydric alcohol at a level greater than 0.01% by weight and less than or equal to 0.45% by weight based on the composition is added and if the resulting mixture is sheared at a temperature below the phase transition temperature of the fabric softener composition. As a result, viscosities in the range 35-500 mPa.s at 106 s−1 can be obtained in a surprising manner.
Claims9
A fabric conditioning composition comprising an aqueous dispersion of:
- (a) 1-10% by weight of a cationic fabric softening compound, and
- (b) a fatty acid partial ester of a polyhydric alcohol at a level greater than 0.01% by weight and less than or equal to 0.45% by weight based on the composition,
- wherein the fabric conditioning composition has a dynamic viscosity in the range 35-500 mPa.s, measured at 106 s−1 and 25° C. using a Haake Rotoviscometer RV20 provided that when the alcohol radical component of component (b) is based on glycerol, it is mono-glycerol.
A composition according to either of the preceding claims comprising 2.0 to 5.5% by weight of component (a).
A composition according to anyone of the preceding claims wherein component (b) is a fatty acid partial ester of glycerol.
A composition according to any one of the preceding claims further comprising a fatty acid.
A process for preparing a fabric conditioning composition, comprising mixing water with:
- (a) 1-10% by weight of a cationic fabric softening composition based on the total mixture, and
- (b) a fatty acid partial ester of a polyhydric alcohol at a level greater than 0.01% by weight and less than or equal to 0.45% by weight based on the composition,
- wherein the aqueous dispersion is sheared at a temperature below the phase transition temperature of the dispersed phase.
Dependencies are inferred from the claim text.