Anhydrous deodorant composition

• US 6,403,070 B1
• Filed: 11/22/2000
• Issued: 06/11/2002
• Est. Priority Date: 11/25/1999
• Status: Expired due to Fees

• Current Assignee: L'Oreal SA
• Original Assignee: L'Oreal SA
• Inventors: Aubert, Lionnel, Pataut, Françoise
• Primary Examiner(s): Dodson, Shelley A.
• Application Number:
  US09/716,950
• Time in Patent Office: 566 Days
• Field of Search: 424/65, 424/66, 424/78.03, 424/400, 424/401, 424/DIG.5
• US Class Current: 424/65
• CPC Class Codes: A61K 2800/31 Anhydrous
• CPC Class Codes: A61K 2800/412 Microsized, i.e. having sizes between 0.1 and 100 microns
• CPC Class Codes: A61K 8/0279 Porous; Hollow
• CPC Class Codes: A61K 8/26 Aluminium; Compounds thereof
• CPC Class Codes: A61K 8/28 Zirconium; Compounds thereof
• CPC Class Codes: A61K 8/732 Starch; Amylose; Amylopectin; Derivatives thereof
• CPC Class Codes: A61K 8/817 Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions or derivatives of such polymers, e.g. vinylimidazol, vinylcaprolactame, allylamines (Polyquaternium 6)
• CPC Class Codes: A61K 8/90 Block copolymers A61K8/89 takes precedence
• CPC Class Codes: A61K 8/92 Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
• CPC Class Codes: A61Q 15/00 Anti-perspirants or body deodorants deodorisation of air A61L9/00
• CPC Class Codes: Y10S 424/05 Stick

Abstract

An anhydrous deodorant cosmetic composition comprising (i) at least one deodorant active agent, (ii) at least one block copolymer, (iii) at least one fat-absorbing substance, and (iv) at least one synthetic oil. The at least one block copolymer is chosen from diblock copolymers, triblock copolymers, multiblock copolymers, and radial block copolymers, wherein said at least one block copolymer comprises at least one segment derived from at least one styrene monomer and at least one segment derived from at least one thermoplastic entity chosen from thermoplastic monomers and thermoplastic comonomers

Claims

1. An anhydrous deodorant cosmetic composition comprising:

(i) at least one deodorant active agent,

(ii) at least one block copolymer chosen from diblock copolymers, triblock copolymers, multiblock copolymers, and radial block copolymers, wherein said at least one block copolymer comprises at least one segment derived from at least one styrene monomer and at least one segment derived from at least one thermoplastic entity chosen from thermoplastic monomers and thermoplastic comonomers,

(iii) at least one fat-absorbing substance, and

(iv) at least one synthetic oil.

3. The composition according to claim 1, wherein said at least one deoderant active agent is present in a concentration ranging from 0.1% to 40% by weight relative to the total weight of the composition.

4. The composition according to claim 1, wherein the at least one block copolymer is present in an amount ranging from 0.1% to 7% by weight relative to the total weight of the composition.

5. The composition according to claim 1, wherein the at least one fat-absorbing substance is present in an amount ranging from 0.1% to 20% by weight relative to the total weight of the composition.

6. The composition according to claim 1, wherein the at least one at least one synthetic oil is present in an amount ranging from 5% to 90% by weight relative to the total weight of the composition.

7. The composition according to claim 1, wherein said at least one fat-absorbing substance is chosen from hollow particles having a mean particle size ranging from 1 μ

m to 300 μ

m.

8. The composition according to claim 3, wherein the hollow particles have a mean particle size ranging from 1 μ

m to 150 μ

m.

9. The composition according to claim 8, wherein the hollow particles have a mean particle size ranging from 10 μ

m to 100 μ

m.

10. The composition according to claim 8, wherein the hollow particles have a mean particle size ranging from 15 μ

m to 60 μ

m.

11. The composition according to claim 7, wherein the hollow particles are chosen from beads, fibers, and needles.

12. The composition according to claim 7, wherein the hollow particles comprise at least one thermoplastic material.

13. The composition according to claim 7, wherein the hollow particles comprise at least one material chosen from nylon and polymers and copolymers derived from at least one monomer chosen from vinylidene chloride, acrylonitrile, acrylic, and styrene monomers.

14. The composition according to claim 7, wherein the hollow particles comprise at least one material chosen from expanded polymers derived from at least one monomer chosen from vinylidene chloride, acrylonitrile, acrylic, and styrene and copolymers derived from at least one monomer chosen from vinylidene chloride, acrylonitrile, acrylic, and styrene.

23. The composition according to claim 1, wherein the at least one fat-absorbing substance is chosen from talcs, starches, starch derivatives, clays, silicas, polyolefins, polystyrenes and teflons.

24. The composition according to any claim 1, wherein the at least one synthetic oil is chosen from isoparaffins of formula (I):

wherein n≧

2.

25. The composition according to claim 24, wherein n ranges from 2 to 40.

26. The composition according to claim 24, wherein n=3 and the least one synthetic oil is isohexadecane.

27. The composition according to claim 24, wherein n=2 and the synthetic oil is isododecane.

28. The composition according to claim 1, wherein the at least one segment derived from at least one thermoplastic entity is chosen from ethylene/C₃-C₄ alkylene segments.

29. The composition according to claim 28, wherein the at least one block copolymer is chosen from hydrogenated block copolymers comprising at least one styrene block and at least one ethylene/C₃-C₄ alkylene block.

30. The composition according to claim 29, wherein the at least one block copolymer comprises a blend in mineral oil of (i) at least one hydrogenated copolymer comprising at least one butylene/ethylene block and at least one styrene block and (ii) at least one hydrogenated copolymer comprising at least one ethylene/propylene block and at least one styrene block.

31. The composition according to claim 30, wherein the blend comprises hydrogentated copolymers in a concentration ranging from 1 to 20% by weight relative to the total weight of the blend, and mineral oil in a concentration ranging from from 80% to 99% by weight relative to the total weight of the blend.

32. The composition according to claim 1, further comprising at least one consistency agent.

33. The composition according to claim 32, wherein the at least one consistency agent is present in an amount sufficient to yield a desired form for the composition.

34. The composition according to claim 32, wherein the desired form is chosen from gel, cream, and stick forms.

35. The composition according to claim 32, wherein the at least one consistency agent is hydrogenated castor oil.

36. The composition according to claim 32, wherein the at least one consistency agent is chosen from paraffin waxes, stearyl alcohols, waxes of natural origin and polyethylene waxes.

37. The composition according to claim 1, further comprising at least one suitable additive chosen from soothing agents, fragrances, preservatives, antioxidants, sequestering agents, suspending agents and emollients.

38. The composition according to claim 37, wherein said at least one suitable additive is chosen from suspending agents and wherein said composition is in the form of an aerosol.

39. The composition according to claim 1, further comprising at least one propellant.

40. The composition according to claim 1, wherein said composition is in the form of an aerosol.

41. The composition according to claim 1, wherein the at least one deodorant agent is chosen from alum salts, bacteriostatic agents, bactericidal agents, zinc salts and odor-absorbing agents.

42. The composition according to claim 41, wherein the at least one deodorant active agent is chosen from bactericidal agents and odor absorbers.

43. The composition according to claim 1, wherein the at least one deodorant active agent is chosen from antiperspirants.

44. The composition according to claim 1, wherein the at least one deodorant active agent is an antiperspirant agent chosen from aluminum salts, zirconium salts, aluminum and zirconium salts and complexes of zirconium hydroxychloride, aluminum hydroxychloride and glycine.

45. The composition according to claim 44, wherein the at least one antiperspirant agent is aluminum hydroxychloride.

2. An anhydrous deodorant cosmetic composition comprising:

(i) at least one deodorant active agent in a concentration ranging from 0.1% to 40% by weight relative to the total weight of the composition;

(ii) at least one block copolymer chosen from diblock copolymers, triblock copolymers, multiblock copolymers and radial block copolymers, wherein said at least one block copolymer comprises at least one segment derived from at least one styrene monomer and at least one segment derived from at least one thermoplastic entity chosen from thermoplastic monomers and thermoplastic comonomers and wherein said at least one block copolymer is present in a concentration ranging from 0.1% to 7% by weight relative to the total weight of the composition;

(iii) at least one fat-absorbing substance in a concentration ranging from 0.1% to 20% relative to the total weight of the composition; and

(iv) at least one synthetic oil in a concentration ranging from 5% to 90% relative to the total weight of the composition.

15. An anhydrous deodorant composition comprising:

(a) at least one deodorant active agent in a concentration ranging from 0.1% to 40% by weight relative to the total weight of the composition,

(b) at least one block copolymer chosen from diblock copolymers, triblock copolymers, multiblock copolymers and radial block copolymers, wherein said at least one block copolymer comprises at least one segment derived from at least one styrene monomer and at least one segment derived from at least one thermoplastic entity chosen from thermoplastic monomers and thermoplastic comonomers, and wherein said at least one block copolymer is present in a concentration ranging from 0.1% to 7% by weight relative to the total weight of the composition,

(c) hollow particles having a mean particle size ranging from 1 μ

m to 300 μ

m in a concentration ranging from 0.1 to 10% by weight relative to the total weight of the composition; and

(d) at least one synthetic oil in a concentration ranging from 5 to 90% by weight relative to the total weight of the composition.

16. The composition according to claim 15, wherein the hollow particles have a mean particle size ranging from 1 μ

m to 150 μ

m.

17. The composition according to claim 15, wherein the hollow particles have a mean particle size ranging from 10 μ

m to 100 μ

m.

18. The composition according to claim 15, wherein the hollow particles have a mean particle size ranging from 15 μ

m to 60 μ

m.

19. The composition according to claim 15, wherein the hollow particles are chosen from beads, fibers, and needles.

20. The composition according to claim 15, wherein the hollow particles comprise at least one thermoplastic material.

21. The composition according to claim 15, wherein the hollow particles comprise at least one material chosen from nylon and polymers and copolymers derived from at least one monomer chosen from vinylidene chloride, acrylonitrile, acrylic, and styrene monomer.

22. An anhydrous deodorant composition comprising:

(a) at least one deodorant active agent in a concentration ranging from 0.1% to 40% by weight relative to the total weight of the composition,

(b) at least one block copolymer chosen from diblock copolymers, triblock copolymers, multiblock copolymers and radial block copolymers, wherein said at least one block copolymer comprises at least one segment derived from at least one styrene monomer and at least one segment derived from at least one thermoplastic entity chosen from thermoplastic monomers and thermoplastic comonomers and wherein said at least one block copolymer is present in a concentration ranging from 0.1% to 7% by weight relative to the total weight of the composition,

(c) at least one hollow particle comprising at least one expanded terpolymer derived from (i) vinylidene chloride, (ii) acrylonitrile and (iii) methacrylate, wherein said at least one hollow particle is present in a concentration ranging from 0.1 to 5% by weight relative to the total weight of the composition, and

(d) at least one synthetic oil in a concentration ranging from 5 to 90% by weight relative to the total weight of the composition.

46. A method for reducing a flow of sweat, comprising applying to a human body an effective amount of a composition comprising at least one deodorant active agent, at least one block copolymer, at least one fat-absorbing substance and at least one synthetic oil, wherein:

said at least one block copolymer is chosen from diblock copolymers, triblock copolymers, multiblock copolymers, and radial block copolymers, wherein said at least one block copolymer comprises at least one segment derived from at least one styrene monomer and at least one segment derived from at least one thermoplastic entity chosen from thermoplastic monomers and thermoplastic comonomers.

47. A method for treating human axillary odor comprising applying to a human axillary surface an effective amount of a composition comprising at least one deodorant active agent, at least one block copolymer, at least one fat-absorbing substance, and at least one synthetic oil, wherein:

said at least one block copolymer is chosen from diblock copolymers, triblock copolymers, multiblock copolymers, and radial block copolymers, wherein said at least one block copolymer comprises at least one segment derived from at least one styrene monomer and at least one segment derived from at least one thermoplastic entity chosen from thermoplastic monomers and thermoplastic comonomers.

48. A method for masking, improving or reducing an unpleasant smell resulting from bacterial decomposition of human sweat comprising applying to a human body an effective amount of a composition comprising at least one deodorant active agent, at least one block copolymer, at least one fat-absorbing substance and at least one synthetic oil, wherein:

said at least one block copolymer is chosen from diblock copolymers, triblock copolymers, multiblock copolymers, and radial block copolymers, wherein said at least one block copolymer comprises at least one segment derived from at least one styrene monomer and at least one segment derived from at least one thermoplastic entity chosen from thermoplastic monomers and thermoplastic comonomers.