Concentrated liquid fabric softening composition
AssigneeColgate-Palmolive Company
InventorsAmjad Farooq, Regis Cesar, Francoise Deville
Life of this patent
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Abstract
The pourability and softening performance of amidoamine fabric softeners, such as bis(tallow amidoethyl)-2-hydroxyethyl amine) is improved by blending with a quaternary diester fabric softener, such as N-methyl, N,N,N-triethanolamine ditallow ester quaternary ammonium salt. The amidoamine fabric softener includes at least 5% by weight of unsaturated higher alkyl groups. The compositions are concentrated with amounts of active softener compounds in excess of 25% by weight and, as such, may be used at low levels or maybe further diluted prior to use.
Claims14
A stable, pourable and water dispersible fabric softener composition comprising an aqueous dispersion containing particles from about 0.01 .mu.m to about 25 .mu.m of about 28 to about 50 weight percent of the total formulation of components (A) and (B) combined, with the proviso that at least 20% of hydrocarbon groups in components (A) and (B) contain unsaturated carbon to carbon bonds, wherein:
- (A) a is an inorganic or organic acid salt of a fabric softening compound of formula (I):
- ##STR19## wherein R.sub.1 and R.sub.2, independently, represent C.sub.12 to C.sub.30 aliphatic hydrocarbon groups,
- R.sub.3 represents (CH.sub.2 CH.sub.2 O).sub.p H, CH.sub.3 or H,
- T represents NH,
- n=1to 5,
- m=1 to 5, and
- p=1 to 10;
- (B) is a biodegradable fatty ester quaternary ammonium compound of formula (11):
- ##STR20## wherein each R.sub.4 independently represents an aphatic hydrocarbon group having from to 8 to 22 carbon atoms,
- R.sub.5 represents (CH.sub.2).sub.s R.sub.7 (where R.sub.7 represents an alkoxy carbonyl group containing from 8 to 22 carbon atoms, benzyl, phenyl, (C.sub.1 -C.sub.4)-alkyl substituted phenyl, OH or H);
- R.sub.6 represents (CH.sub.2).sub.t R.sub.8 (where R.sub.8 represents benzyl, phenyl (C.sub.1 -C.sub.4) alkyl substituted phenyl, OH or H);
- q, r, s and t, each independently, represent a number of 1 to 3;
- and X is an anion of valence a;
- and
- (C) an aqueous solvent including an anti-gelling effective amount of electrolyte;
- (D) the weight ratio of formula (I) to formula (II) is from about 5:1 to about 1:5;
- and
- (E) wherein the composition has a viscosity of less than 2,000 centipoise at 20.degree. C.
Dependencies are inferred from the claim text.