Liquid detergent containing conditioning agent and high levels of alkyl sulfate/alkyl ethoxylated sulfate

• US 5,073,274 A
• Filed: 04/30/1990
• Issued: 12/17/1991
• Est. Priority Date: 02/08/1988
• Status: Expired due to Term

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Caswell, Debra S.
• Primary Examiner(s): Lieberman, Paul
• Assistant Examiner(s): PARKS, WILLIAM
• Application Number:
  US07/522,414
• Time in Patent Office: 596 Days
• Field of Search: 252/8.6, 252/8.7, 252/8.75, 252/8.8, 252/8.9, 252/547
• US Class Current: 510/328
• CPC Class Codes: C11D 1/123 derived from carboxylic acids, e.g. sulfosuccinates
• CPC Class Codes: C11D 1/126 Acylisethionates
• CPC Class Codes: C11D 1/14 derived from aliphatic hydrocarbons or mono-alcohols
• CPC Class Codes: C11D 1/22 derived from aromatic compounds
• CPC Class Codes: C11D 1/28 Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides
• CPC Class Codes: C11D 1/29 Sulfates of polyoxyalkylene ethers
• CPC Class Codes: C11D 1/40 Monoamines or polyamines; Salts thereof
• CPC Class Codes: C11D 1/65 Mixtures of anionic with cationic compounds
• CPC Class Codes: C11D 3/0015 liquid

Abstract

Disclosed are liquid detergent compositions containing from about 5% to about 40% of an alkyl sulfate or alkyl ethoxylated sulfate surfactant, or mixture thereof, and water-insoluble, amine-organic anion ion-pair conditioning particles in a liquid base. The alkyl sulfate, alkyl ethoxylated sulfate, or mixture thereof, stabilizes the conditioning particles for improved shelf-life.

Claims

1. A liquid detergent composition comprising:

(a) from 5.0% to about 40% of a surfactant component, said surfactant component containing surfactants selected from the group consisting of alkyl sulfates, alkyl ethoxylated sulfates having an average of less than about 4.0 ethoxylate groups per alkyl sulfate molecule, and mixtures of alkyl sulfates and alkyl ethoxylated sulfates, said mixtures having an average of less than about 4.0 ethoxylate groups per molecule of said surfactants;

(b) from about 0.1% to about 20% of water-insoluble conditioning particles having an average diameter of from about 10 microns to about 500 microns, said particles comprising an amine-organic anion ion-pair complex having the formula;

##STR20## wherein each R₁ and R₂ can independently be C₁₂ -C₂₀ alkyl or alkenyl, each R₃ is H or CH₃, and A is an organic anion selected from the group consisting of aryl sulfonates, alkylaryl sulfonates comprising a C₁ -C₅ alkyl, dialkyl sulfosuccinates, alkyl oxybenzene sulfonates, acyl isethionates, acylalkyl taurates, and mixtures of said ion-pair complexes; and

(c) a liquid base;

said detergent composition having a pH of between about 5 and about 10.

2. A liquid detergent composition, as in claim 1, wherein said surfactant component has an average number of ethoxylate groups per surfactant molecule of from 0 to about 3.0.

3. A liquid detergent composition, as in claim 2, wherein said surfactants have C₁₂ -C₁₆ alkyl or hydroxyalkyl group.

4. A liquid detergent composition, as in claim 1, wherein said organic anion is benzene sulfonate or a C₁ -C₅ linear alkyl benzene sulfonate.

5. A liquid detergent composition, as in claim 3, wherein said organic anion is benzene sulfonate or a C₁ -C₅ linear alkyl benzene sulfonate.

6. A liquid detergent composition, as in claim 1, wherein said composition further comprises a detergent builder component.

7. A liquid detergent composition, as in claim 6, wherein said detergent builder component comprises one or more builders selected from the group consisting of C₁₀ to C₁₈ alkyl or alkenyl monocarboxylic acids, polycarboxylic acids, polymeric carboxylates, and alkenyl succinates.

8. A liquid detergent composition, as in claim 1, wherein said liquid base comprises water and at least one polar solvent selected from the group consisting of monohydric alcohols and polyols.

9. A liquid detergent composition as in claim 1, further comprising one or more additional surfactants selected from the group consisting of anionic surfactants, exclusive of alkyl sulfates and alkyl ethoxylated sulfates, and nonionic surfactants.

10. A liquid detergent composition, as in claim 7, wherein said liquid base comprises water and at least one polar solvent selected from the group consisting of monohydric alcohols and polyols.

11. A liquid detergent composition as in claim 10, further comprising one or more additional surfactants selected from the group consisting of anionic surfactants, exclusive of alkyl sulfates and alkyl ethoxylated sulfates, and nonionic surfactants.

12. A liquid detergent composition, as in claim 1, wherein said composition comprises from about 7.0% to about 25% of said surfactant component.

13. A liquid detergent composition, as in claim 7, wherein said composition comprises from about 7.0% to about 25% of said surfactant component.

14. A liquid detergent composition, as in claim 8, wherein said composition comprises from about 7.0% to about 25% of said surfactant component.

15. A liquid detergent composition, as in claim 9, wherein said composition comprises from about 7.0% to about 25% of said surfactant component.

16. A liquid detergent composition, as in claim 10, wherein said composition comprises from about 7.0% to about 25% of said surfactant component.

17. A liquid detergent composition, as in claim 11, wherein said composition comprises from about 7.0% to about 25% of said surfactant component.