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US 4,128,484 AGranted
Fabric softening compositions
AssigneeThe Procter & Gamble Company
InventorsBrian D. Barford, Lawrence Benjamin
Life of this patent
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Abstract
An aqueous emulsion comprising a fatty alkyl ester of a polyhydric alcohol and a cationic surfactant provides a fabric softening composition of unexpected efficacy. In particular, the use of a sorbitan ester with a cationic surfactant provides a softening agent which deposits effectively onto fabric from an aqueous bath.
Claims16
A fabric softening composition in the form of an aqueous dispersion, comprising:
- (i) from about 3% to about 20% by weight of a disperse phase comprising
- (a) at least about 30% by weight of a fatty acid partial ester of a polyhydric alcohol or anhydride thereof containing from 3 to about 8 carbon atoms;
- and
- (b) at least about 5% by weight of a cationic surfactant selected from non-cyclic quaternary ammonium salts having at least one C.sub.12 -C.sub.30 alkyl chain, C.sub.8 -C.sub.25 alkyl imidazolinium salts, and C.sub.12 -C.sub.20 alkyl pyridinium salts;
- the particles of the disperse phase being characterized by an average particle size of less than about 4 microns, said dispersed particles having a positive charge distribution on the surface thereof;
- and
- (ii) the balance of the composition comprising a liquid carrier selected from the group consisting of water and mixtures of water and C.sub.1 -C.sub.4 monohydric alcohols.
4 more elements
Dependencies are inferred from the claim text.