USRE38185EExpiredUtility

Process for molding a make-up composition

Assignee: OREALPriority: Jun 7, 1993Filed: Aug 22, 2000Granted: Jul 15, 2003

Est. expiryJun 7, 2013(expired)· nominal 20-yr term from priority

Inventors:Gerard Joulia

A45D 40/16A45D 33/00A61Q 1/08B29C 37/005A61Q 1/10A61K 8/02A61K 8/23B29C 39/10

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Claims

Abstract

Process for moulding a make-up composition in a mould comprising a concave moulding surface forming the base of the mould and a bottom forming the upper component of the mould and closing off the space bounded by the said moulding surface, the composition being cast in the said mould in fluid form and subsequently solidifying to form a demouldable solid product capable of being packaged, in which the said composition is cast in a mould (1) whose bottom consists at least partly of a sheet (2) of open-cell plastic foam, so as partly to impregnate the said foam sheet (2) with the said composition and in which, after solidifying of the said composition, a moulded product consisting of the solidified composition and of the foam sheet which is bonded to it and which forms its support, is demoulded by removing the moulding surface (1).

Claims

exact text as granted — not AI-modified

I claim:

1. Process for molding a make-up composition, comprising the steps of:
forming a mold including a concave molding surface as a base of the mold and defining a volume;
applying a sheet of open-cell plastic foam to the mold opposite the concave molding surface to substantially close off the volume, said sheet having a first portion facing the volume, and a second, opposite portion;
introducing a fluid make-up composition into the mold between the concave molding surface and the foam sheet;
impregnating the open cells of the first portion of the foam sheet with the fluid composition;
solidifying the composition to form a molded product, including both the solidified composition having a first usable surface from which make-up can be removed and the foam sheet attached to a second opposite surface,
wherein the solidifying step includes the substeps of bonding the foam sheet to the solidified composition via the impregnated open cells, and elastically supporting the solid composition via the foam sheet; and
removing the molded product from the molding surface, to form the make-up composition including both the solidified composition and the foam sheet bonded thereto.

2. Process according to claim 1 , wherein the solidifying step comprises, one of the steps of cooling the fluid composition and evaporating a solvent present in the fluid composition.

3. Process according to claim 1 , wherein the introducing step comprises the step of choosing the make-up composition to include plaster and a sufficient quantity of water to obtain a pourable mixture, the solidifying step taking place after the introducing step as a result of setting of the plaster.

4. Process according to claim 1 , wherein the introducing step includes the step of pouring the fluid make-up composition through the foam sheet.

5. Process according to claim 4 , wherein the fluid make-up composition is poured through a central opening made in the foam sheet.

6. Process according to claim 1 , further comprising the step of compressing the foam sheet in the mold using a rigid plate.

7. Process according to claim 6 , wherein the compressing step occurs during the solidifying step.

8. Process according to claim 7 , further comprising the step of providing the rigid plate with at least one opening.

9. Process according to claim 1 , further comprising the step of choosing the foam sheet to have a cell structure such that a volume occupied by walls of the cells does not represent more than 3% of a total volume of the foam.

10. Process according to claim 1 , further comprising the step of choosing the foam sheet to be a crosslinked polyurethane foam.

11. Process according to claim 1 , further comprising the step of choosing the foam to have a thickness of between 3 and 6 mm.

12. A process for molding a make- up composition, comprising:

providing a mold including a molding surface and defining a volume;

applying a sheet of open - cell foam to the mold opposite the molding surface to substantially close off the volume, said sheet having a first portion facing the volume, and a second, opposite portion;
introducing a fluid make - up composition into the mold;

impregnating the open cells of the first portion of the foam sheet with the fluid composition;

solidifying the composition to form a molded product, including both the solidified composition having a first usable surface from which make - up can be removed and the foam sheet attached to a second opposite surface of the solidified composition, wherein the solidifying includes bonding the foam sheet to the solidified composition via the impregnated open cells, and elastically supporting the solid composition via the foam sheet; and
removing the molded product from the molding surface, to form a make - up product including both the solidified composition and the foam sheet bonded thereto.

13. The process according to claim 12 , wherein the introducing includes introducing the fluid into the mold between the molding surface and the foam sheet.

14. The process according to claim 12 , wherein the molding surface is concave.

15. The process according to claim 12 , wherein the introducing occurs after the applying of the sheet of open- cell foam to the mold.

16. The process according to claim 15 , wherein the introducing includes introducing the fluid through the foam sheet.

17. The process according to claim 16 , wherein the introducing includes pouring the fluid through a central opening in the foam sheet.

18. The process according to claim 12 , wherein the solidifying includes one of cooling the fluid composition and evaporating a solvent present in the fluid composition.

19. The process according to claim 12 , wherein the fluid make- up composition includes plaster and a sufficient quantity of water to obtain a pourable mixture.

20. The process according to claim 19 , wherein the solidifying occurs after the introducing, as a result of setting of plaster in the composition.

21. The process according to claim 12 , further comprising compressing the foam sheet in the mold using a rigid plate.

22. The process according to claim 21 , wherein the compressing occurs during the solidifying.

23. The process according to claim 22 , wherein the rigid plate includes at least one opening.

24. The process according to claim 12 , wherein the foam sheet has a cell structure such that a volume occupied by walls of the cells does not represent more than 3 % of a total volume of the foam.

25. The process according to claim 12 , wherein the foam sheet includes a plastic material.

26. The process according to claim 25 , wherein the plastic material is crosslinked polyurethane foam.

27. The process according to claim 12 , wherein the foam sheet has a thickness ranging from 3 mm to 6 mm.

28. The process according to claim 12 , further comprising packaging the molded product after the molded product is removed from the mold.

29. A process for molding a make- up composition, comprising: providing

a mold including a molding surface and defining a volume, and

a sheet of open - cell foam on the mold opposite the molding surface, said sheet substantially closing off the volume and having a first portion facing the volume, and a second, opposite portion;
introducing a fluid make - up composition into the mold;

impregnating the open cells of the first portion of the foam sheet with the fluid composition;

30. The process according to claim 29 , wherein the introducing includes introducing the fluid make- up composition into the mold between the molding surface and the foam sheet.

31. The process according to claim 29 , wherein the molding surface is concave.

32. The process according to claim 29 , wherein the introducing includes introducing the fluid through the foam sheet.

33. The process according to claim 32 , wherein the introducing includes pouring the fluid through a central opening in the foam sheet.

34. The process according to claim 29 , wherein the solidifying includes one of cooling the fluid composition and evaporating a solvent present in the fluid composition.

35. The process according to claim 29 , wherein the fluid make- up composition includes plaster and a sufficient quantity of water to obtain a pourable mixture.

36. The process according to claim 35 , wherein the solidifying occurs after the introducing, as a result of setting of plaster in the composition.

37. The process according to claim 29 , further comprising compressing the foam sheet in the mold using a rigid plate.

38. The process according to claim 37 , wherein the compression occurs during the solidifying.

39. The process according to claim 38 , wherein the rigid plate includes at least one opening.

40. The process according to claim 29 , wherein the foam sheet has a cell structure such that a volume occupied by walls of the cells does not represent more than 3 % of a total volume of the foam.

41. The process according to claim 29 , wherein the foam sheet includes a plastic material.

42. The process according to claim 41 , wherein the plastic material is crosslinked polyurethane foam.

43. The process according to claim 29 , wherein the foam sheet has a thickness ranging from 3 mm to 6 mm.

44. The process according to claim 29 , wherein the introducing occurs while the sheet of open cell foam is on the mold.

45. The process according to claim 29 , further comprising packaging the molded product after the molded product is removed from the mold.

46. A process for molding a make- up composition, comprising:
providing

a mold including a molding surface and defining a volume, and

impregnating the open cells of the first portion of the foam sheet with the fluid composition; and

solidifying the composition to form a molded product, including both the solidified composition having a first usable surface from which make - up can be removed and the foam sheet attached to a second opposite surface of the solidified composition, wherein the solidifying includes bonding the foam sheet to the solidified composition via the impregnated open cells, and elastically supporting the solid composition via the foam sheet, and
wherein removal of the molded product from the molding surface forms a make - up product including both the solidified composition and the foam sheet bonded thereto.

47. The process according to claim 46 , further comprising removing the molded product from the molding surface to form the make- up product including both the solidified composition and the foam sheet bonded thereto.

48. The process according to claim 47 , further comprising packaging the molded product after the molded product is removed from the mold.

49. The process according to claim 46 , wherein the introducing includes introducing the fluid make- up composition into the mold between the molding surface and the foam sheet.

50. The process according to claim 46 , wherein the molding surface is concave.

51. The process according to claim 46 , wherein the introducing includes introducing the fluid through the foam sheet.

52. The process according to claim 51 , wherein the introducing includes pouring the fluid through a central opening in the foam sheet.

53. The process according to claim 46 , wherein the solidifying includes one of cooling the fluid composition and evaporating a solvent present in the fluid composition.

54. The process according to claim 46 , wherein the fluid make- up composition includes plaster and a sufficient quantity of water to obtain a pourable mixture.

55. The process according to claim 54 , wherein the solidifying occurs after the introducing, as a result of setting of plaster in the composition.

56. The process according to claim 46 , further comprising compressing the foam sheet in the mold using a rigid plate.

57. The process according to claim 56 , wherein the compressing occurs during the solidifying.

58. The process according to claim 57 , wherein the rigid plate includes at least one opening.

59. The process according to claim 46 , wherein the foam sheet has a cell structure such that a volume occupied by walls of the cells does not represent more than 3 % of a total volume of the foam.

60. The process according to claim 46 , wherein the foam sheet includes a plastic material.

61. The process according to claim 60 , wherein the plastic material is crosslinked polyurethane foam.

62. The process according to claim 46 , wherein the foam sheet has a thickness ranging from 3 mm to 6 mm.

63. The process according to claim 46 , wherein the introducing occurs while the sheet of open cell foam is on the mold.

64. The process according to claim 46 , further comprising packaging the molded product.

65. The process according to claim 64 , wherein the mold provides a packaging for the molded product.

66. The process according to claim 65 , wherein the mold provides a cap covering the solidified composition.

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