Liquid fabric softening composition containing amidoamine softening compound
AssigneeColgate-Palmolive Company
InventorsCharles J. Schramm, Jr., Regis Cesar
Life of this patent
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Abstract
The stability and softening performance of amidoamine fabric softeners, such as bis(hydrogenated tallow amidoethyl)-2-hydroxyethyl amine) is improved by protonating the amine with a neutralizing inorganic or organic acid and incorporating certain stabilizing emulsifiers, such as, N,N',N'-tris(2-hydroxyethyl)-N-tallow-1,3-diaminopropane, dimethylhydrogenated tallow amine, methyl dihydrogenated tallow amine, and oleic imidazoline). Mixtures of bis(hydrogenated tallow amidoethyl)-2-hydroxyethyl amine and bis(tallow amidoethyl)-2-hydroxyethyl amine also provide improved softening and form stable aqueous dispersions. The compositions may be highly concentrated for use at low levels or for further dilution prior to use.
Claims20
A stable, aqueous, pourable and water dispersible fabric softener composition comprising:
- (A) a fabric softening effective amount of an inorganic or organic acid salt of a finely divided less than about 10 microns, fabric softening compound of formula (I):
- ##STR17## wherein R.sub.1 =C.sub.12 to C.sub.30 alkyl or alkenyl, R.sub.2 =R.sub.1 CONH(CH.sub.2).sub.m,
- R.sub.3 =(CH.sub.2 CH.sub.2 O).sub.p H,
- n=1 to5,
- m=1 to 5, and
- p=1 to 10;
- (B) a dispersant stabilizing effective amount of a dispersant having the formula (II), (V) or (IV):
- ##STR18## wherein R.sub.4 represents a hydrocarbon group having from 8 to 22 carbon atoms,
- R.sub.5 represents a hydrocarbon group having from 1 to 22 carbon atoms,
- R.sub.6 represents C.sub.1 -C.sub.4 alkyl or hydroxyalkyl,
- R.sub.10, independently, represent a hydrocarbon group having from 8 to 22 carbon atoms,
- R.sub.11 represents a hydrocarbon group having from 1 to 22 carbon atoms which may have an hydroxyl group substituent,
- R.sub.12 and R.sub.13, independently, represent C.sub.1 -C.sub.4 alkyl or hydroxyalkyl,
- R.sub.14 represents a hydrocarbon group having from 8 to 22 carbon atoms,
- R.sub.15 represents a hydrogenation or C.sub.1 -C.sub.4 alkyl or hydroxyalkyl, and
- Z represents a divalent alkylene group of from 1 to 6 carbon atoms which may include a hydroxyl group;
- and
- (C) an aqueous solvent wherein the pH of the composition ranges from 1.5 to 4.0 and wherein the composition is substantially free of quaternized compounds.
A liquid fabric softening composition comprising an aqueous dispersion of from 2 to 50% by weight,
- (A') an inorganic or organic acid salt of bis(hydrogenated tallow amidoethyl) hydroxyethyl amine, and
- (B') an inorganic or organic acid salt of bis(non-hydrogenated tallow amidoethyl) hydroxyethyl amine, at a weight ratio of (A'):(B') of from 10:1 to 1.5:1 wherein the pH of the composition ranges from 1.5 to 4.0 and wherein the composition is substantially free of quaternized compounds.
Dependencies are inferred from the claim text.