Deposition of materials to surfaces using zwitterionic carrier particles

• US 5,476,660 A
• Filed: 08/03/1994
• Issued: 12/19/1995
• Est. Priority Date: 08/03/1994
• Status: Expired due to Term

• Current Assignee: Lever Brothers Company, Division Of Conopco, Inc.
• Original Assignee: Lever Brothers Company, Division Of Conopco, Inc.
• Inventors: Ananthapadmanabhan, Kavssery P., Somasundaran, Ponisseril, Fujiwara, Mitsuko, Tsaur, Liang S.
• Primary Examiner(s): Page, Thurman K.
• Assistant Examiner(s): LANE, SALLY GARDNER
• Application Number:
  US08/285,270
• Time in Patent Office: 503 Days
• Field of Search: 424/401, 424/489, 424/502, 424/61, 424/69, 424/70.11, 424/70.17
• US Class Current: 424/401
• CPC Class Codes: A61K 2800/57 Compounds covalently linked to a(n inert) carrier molecule, e.g. conjugates, pro-fragrances
• CPC Class Codes: A61K 8/0241 Containing particulates characterized by their shape and/or structure see also A61K8/04, A61K8/11, and A61K8/14, further aspects are classified in A61K2800/40 and subcodes
• CPC Class Codes: A61K 8/347 Phenols
• CPC Class Codes: A61K 8/463 containing sulfuric acid derivatives, e.g. sodium lauryl sulfate
• CPC Class Codes: A61K 8/65 Collagen; Gelatin; Keratin; Derivatives or degradation products thereof
• CPC Class Codes: A61K 8/67 Vitamins
• CPC Class Codes: A61K 8/731 Cellulose; Quaternized cellulose derivatives
• CPC Class Codes: A61K 8/736 Chitin; Chitosan; Derivatives thereof
• CPC Class Codes: A61K 8/737 Galactomannans, e.g. guar; Derivatives thereof
• CPC Class Codes: A61K 8/8117 Homopolymers or copolymers of aromatic olefines, e.g. polystyrene; Compositions of derivatives of such polymers
• CPC Class Codes: A61K 8/8147 Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers
• CPC Class Codes: A61K 8/8152 Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
• CPC Class Codes: A61Q 11/00 Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
• CPC Class Codes: A61Q 13/00 Formulations or additives for perfume preparations essential oils or perfumes per se C11B9/00
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair
• CPC Class Codes: C11D 17/0039 Coated compositions or coated components in the compositions, (micro)capsules

Abstract

Compositions to deposit an active substance on a target surface (i.e. fabric, sun, hair, teeth). The active substance is left on the surface, after the product is rinsed off the surface. The preferred deposition is from compositions containing an anionic or nonionic active in the co-presence of an anionic surfactant. The compositions contain carrier particles having a zwitterionic or cationic surface and a plurality of outwardly protruding filaments containing charged organocarbyl groups. The active substance is contained within the carrier particles.

Claims

1. A composition for depositing active substances onto a target surface, the composition comprising

(i) from about 0.1% to about 50% of carrier particles:

with a zwitterionic surface, the surface having a plurality of outwardly protruding filaments containing positively charged organocarbyl groups selected from the group consisting of primary amine, secondary amine, tertiary amine, quaternary ammonium salts, amidines, pyridinium salts and mixtures thereof

and a plurality of outwardly protruding filaments containing negatively charged organocarbyl groups selected from the group consisting of sulfate, sulfonate, carboxylate, phosphate groups, and mixtures thereof, wherein the positively charged groups and the negatively charged groups are located on different filaments;

(ii) from about 0.01% to about 50% of an active substance within said particle, wherein the active substance is a cosmetic active,

(iii) from about 1% to about 99% by weight of the composition of an anionic surfactant.

2. The composition of claim 1, wherein the zwitterionic particle has a net negative charge.

3. The composition of claim 1 wherein the composition further comprises cationic or an amphoteric polymer deposition aid.

4. The composition of claim 1 wherein the positively and negatively charged organocarbyl groups are located at the terminal unattached end of the filaments.

5. The composition of claim 1 wherein the zwitterionic surface having filaments is formed from an emulsion comprising molten wax, an anionic surfactant and a cationic surfactant.

6. The composition of claim 1 wherein the cationic surface having filaments is formed from an emulsion comprising molten wax and a cationic surfactant.

7. The composition of claim 1 wherein the water-insoluble particle having a zwitterionic surface is a zwitterionic latex particle.

8. The composition of claim 1 wherein the target surface is negatively charged.

9. The composition of claim 1 wherein the pH of the composition is less than about 10.

14. A method of depositing an active substance onto a target surface, the method comprising applying to the target surface the composition of claim 1.

15. The method of claim 14, wherein the target surface is mammalian skin, hair, or nails.

16. The method of claim 14 further comprising rinsing the composition off the target surface.

10. A composition for depositing active substances onto a negatively charged target surface, the composition comprising

(i) from about 1% to about 99% by weight of the composition;

(a) particles with a zwitterionic surface, the surface having a plurality of outwardly protruding filaments containing positively charged organocarbyl groups selected from the group consisting of primary amine, secondary amine, tertiary amine, quaternary ammonium salts, amidines, pyridinium salts and mixtures thereof

and a plurality of outwardly protruding filaments containing negatively charged organocarbyl groups selected from the group consisting of surfate, sulfonate, carboxylate, phosphate groups, and mixtures thereof wherein the positively charged groups and the negatively charged groups are located on different filaments;

(ii) from about 0.01% to about 50% of an active substance within said particle. wherein the active substance is a cosmetic active;

(iii) a cationic or an amphoteric polymer deposition aid,

(iv) from about 1% to about 99% by weight of the composition of an anionic surfactant.

11. The composition of claim 10 wherein the zwitterionic carrier particle has an overall negative charge.

12. The composition of claim 10 wherein the composition is a skin cleansing composition.

13. The composition of claim 10 wherein the composition is a shampoo.