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US3978204A Expired / Lapsed US ⏱️ 0.0 years remaining

Cosmetic composition containing microencapsulated solvents for nail enamel

Assignee: L'Oréal SA
•
Filing: 1974-12-12
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Granted: 1976-08-31
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Expires: 1994-12-12
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Abstract

Abstract A process for preparing a cosmetic blotting paper toweling composition for the skin consisting essentially of a flexible solid blotting paper toweling support having a multiplicity of mechanical pressure rupturable, cosmetic containing microcapsules, which are homogeneously distributed therein, comprises dispersing the microcapsules in a liquid blotting paper paste phase at a time when the liquid blotting paper paste phase has a density close to that of the microcapsules so that the microcapsules are homogeneously distributed therein and solidifying the liquid phase to produce said cosmetic composition.

Inventors

  • 👤 Roger Charle
  • 👤 Charles Zviak
  • 👤 Gregoire Kalopissis

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 23:43
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/11; A61K8/0208; A61Q; A61Q17/00; A61Q17/04; A61Q5/00; A61Q5/10; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 166 words
A process for the preparation of a cosmetic blotting paper toweling composition consisting essentially of a flexible solid blotting paper toweling support having a multiplicity of microcapsules, encapsulating said cosmetic, homogeneously distributed therein, said flexible solid blotting paper toweling support being adapted when cut to towels to be applied topically to the skin and said microcapsules having average dimensions of 50 to 100 microns and being rupturable by mechanical pressure to release said cosmetic, the walls of said microcapsules being inert to said cosmetic, the steps comprising dispersing said microcapsules in a liquid blotting paper paste phase which on solidification by draining and drying yields said flexible blotting paper toweling support, said microcapsules being dispersed therein at a time when said liquid blotting paper paste phase has a density close to that of said microcapsules so that said microcapsules are homogeneously distributed therein and solidifying by draining and drying said liquid blotting paper paste phase having said microcapsules homogeneously distributed therein to produce said cosmetic composition.
Claim 2
Dependent Claim 166 words
A process for the preparation of a cosmetic blotting paper toweling composition consisting essentially of a flexible solid blotting paper toweling support having a multiplicity of microcapsules, encapsulating said cosmetic, homogeneously distributed therein, said flexible solid blotting paper toweling support being adapted when cut to towels to be applied topically to the skin and said microcapsules having average dimensions of 50 to 100 microns and being rupturable by mechanical pressure to release said cosmetic, the walls of said microcapsules being inert to said cosmetic, the steps comprising dispersing said microcapsules in a liquid blotting paper paste phase which on solidification by draining and drying yields said flexible blotting paper toweling support, said microcapsules being dispersed therein at a time when said liquid blotting paper paste phase has a density close to that of said microcapsules so that said microcapsules are homogeneously distributed therein and solidifying by draining and drying said liquid blotting paper paste phase having said microcapsules homogeneously distributed therein to produce said cosmetic composition.
Claim 3
Dependent Claim 28 words
The process of claim 1 which includes adjusting the density of said liquid blotting paper paste phase so that it is close to the density of said microcapsules.
Claim 4
Dependent Claim 13 words
The process of claim 1 wherein said cosmetic is a makeup remover composition.
Claim 5
Dependent Claim 143 words
A process for the preparation of a cosmetic blotting paper towel composition consisting essentially of a flexible solid blotting paper towel support having a multiplicity of microcapsules having average dimensions of 50 to 100 microns and encapsulating a makeup remover composition, said microcapsules being homogeneously distributed in said flexible solid blotting paper towel support adaptable to be applied topically to the skin, the steps comprising dispersing said microcapsules in a blotting paper paste at a time when the density of said paste is close to that of said microcapsules so that said microcapsules are homogeneously distributed therein, draining and drying said blotting paper paste having said microcapsules homogeneously distributed therein on a form in a thin layer and cutting said layer to provide makeup remover blotting paper towels wherein said microcapsules release the makeup remover composition by simple pressure that crushes the microcapsules.
Claim 6
Dependent Claim 143 words
A process for the preparation of a cosmetic blotting paper towel composition consisting essentially of a flexible solid blotting paper towel support having a multiplicity of microcapsules having average dimensions of 50 to 100 microns and encapsulating a makeup remover composition, said microcapsules being homogeneously distributed in said flexible solid blotting paper towel support adaptable to be applied topically to the skin, the steps comprising dispersing said microcapsules in a blotting paper paste at a time when the density of said paste is close to that of said microcapsules so that said microcapsules are homogeneously distributed therein, draining and drying said blotting paper paste having said microcapsules homogeneously distributed therein on a form in a thin layer and cutting said layer to provide makeup remover blotting paper towels wherein said microcapsules release the makeup remover composition by simple pressure that crushes the microcapsules.
Claim 7
Dependent Claim 12 words
The process of claim 4 wherein the microcapsules are made of polypropylene.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-08-31 1980-03-01 1980-08-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-08-31 1984-03-01 1984-08-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-08-31 1988-03-01 1988-08-31 $7700.00 Window Closed / Lapsed

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