Concentrated quaternary ammonium fabric softener compositions containing cationic polymers
AssigneeThe Procter & Gamble Company
InventorsMegan A. Cooper, Toan Trinh, Errol Hoffman Wahl, Richard Martin Ward
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Abstract
The present invention relates to aqueous stable, preferably concentrated, aqueous liquid textile softening compositions comprising fabric softener active and cationic polymer in the continuous aqueous phase to provide improved softening. The compositions of the present invention preferably contain diester quaternary ammonium compounds wherein the fatty acyl groups have an Iodine Value of from greater than about 5 to less than about 140. The cationic polymers can provide additional benefits such as dye transfer inhibition, chlorine scavenging to protect fabrics, cotton soil release benefits, etc.
Claims19
Aqueous fabric softener composition comprising:
- (A) cationic fabric softening compound having the formula:
- (R)4−m—N+—[(CH2)n—Y—R2]mX−
- wherein each Y═—O—(O)C—, —C(O)—O—, —NR—(O)C—, or —C(O)—NR—;
- m=2 or 3;
- each n=1 to 4;
- each R substituent is a short chain C1-C6 alkyl, hydroxyalkyl, or benzyl group or mixtures thereof;
- each R2 is a long chain, C11-C21 hydrocarbyl, or substituted hydrocarbyl substituent and the counterion, X−, is any softener-compatible anion;
- wherein said cationic fabric softening compound is in the composition in the form of vesicles;
- and
- (B) at least an effective amount of cationic polymer to improve the softening of the cationic fabric softening compound, said cationic polymer being water soluble to the extent of at least 0.5% by weight at 20° C. and having a concentration in the aqueous phase of from about 0.001% to about 10%;
- wherein the vesicles are formed prior to introduction of the cationic polymer into the composition.
A stable liquid composition comprising:
- (A) from about 2% to about 60% of biodegradable quaternary ammonium fabric softening compound having the formula:
- (R)4−m—N+—[(CH2)n—Y—R2]mX−
- wherein each Y═—O—(O)C—, —C(O)—O—, —NR—(O)C—, or —C(O)—NR—;
- m=2 or 3;
- each n=1 to 4;
- each R substituent is a short chain C1-C6 alkyl, hydroxyalkyl, or benzyl group or mixtures thereof;
- each R2 is a long chain, C11-C21 hydrocarbyl, or substituted hydrocarbyl substituent and the counterion, X−, is any softener-compatible anion;
- wherein said fabric softening compound is in the composition in the form of vesicles;
- (B) 0.001% to about 10% of cationic polymer in the aqueous phase, said cationic polymer being water soluble to the extent of at least 0.5% by weight at 20° C.;
- wherein the vesicles are formed prior to introduction of the cationic polymer into the composition;
- (C) from about 0% to about 5% of dispersibility modifier selected from the group consisting of:
- 1. single-long-chain C10-C22 alkyl, cationic surfactant;
- 2. nonionic surfactant with at least 8 ethoxy moieties;
- 3. amine oxide;
- 4. C12-C25 fatty acid;
- and
- 5. mixtures thereof;
- (D) from about 0% to about 2% of a stabilizer;
- and
- (E) aqueous liquid carrier.
An aqueous fabric softening composition comprising:
- (A) a cationic fabric softening compound;
- and
- (B) at least an effective amount of cationic polymer to improve the softening of the cationic fabric softening compound;
- wherein said cationic fabric softening compound is in the composition in the form of vesicles formed prior to the introduction of the cationic polymer into the composition, and said cationic polymer has a concentration in the aqueous phase of from about 0.001% to about 10%.
An aqueous fabric softening composition comprising:
- (A) a cationic fabric softening compound;
- and
- (B) at least an effective amount of cationic polymer to improve the softening of the cationic fabric softening compound;
- wherein said cationic fabric softening compound is in the composition in the form of vesicles, and said cationic polymer is provided in the composition after formation of the vesicles and has a concentration in the aqueous phase of from about 0.001% to about 10%.
Dependencies are inferred from the claim text.