Toilet – Toilet kit – Including cosmetic applicator
Reexamination Certificate
1999-01-29
2001-10-09
Manahan, Todd E. (Department: 3732)
Toilet
Toilet kit
Including cosmetic applicator
Reexamination Certificate
active
06298864
ABSTRACT:
The present invention relates to the general field of films used in contact with the skin for the purpose of exerting thereon cosmetic and/or curative action.
BACKGROUND OF THE INVENTION
Films are already known which are applied temporarily to the skin to extract impurities therefrom and/or to release a substance that acts through the skin, with such films also being known as “patches”.
The use of such films is made difficult by the fact that a shape is not always available that is appropriate for the region of the face or the body that is to be treated.
In addition, such films have a multilayer structure and are relatively thick, and they are therefore fairly uncomfortable on the skin.
Furthermore, their appearance and their thickness do not enable the user to wear them in discreet manner.
Compositions are also known which, on drying, transform into films that can be peeled off, such compositions being known as film-forming compositions, and being packaged in pots or tubes for application to the face in relatively coarse manner by means of a finger or a spatula in order to form a mask.
Irregular application of such film-forming compositions leaves visible traces, which means that under these circumstances also, the user cannot go out or go to work without other people noticing.
There thus exists a need for a film that is easy to put into place whatever the region of the face or body that is to be treated, that is comfortable, and that can also be worn discreetly, if necessary.
OBJECTS AND SUMMARY OF THE INVENTION
This is achieved by the invention by means of a device enabling a film-forming composition to be applied to the skin, the device comprising:
a receptacle containing said film-forming composition;
an applicator including an applicator element; and
a wiper member inside the receptacle, the applicator element and the wiper member being organized in such a manner that after being wiped and on being moved in contact with the skin, the applicator element leaves a film of the film-forming composition which, on drying, can be peeled off and presents a density per unit area that preferably lies in the range 1 mg/cm
2
to 15 mg/cm
2
.
By means of the invention, the user can easily deposit a substantially constant thickness of the film-forming composition on the skin.
The user can easily make the film in situ to the desired size.
The film is comfortable because it is thin and flexible, and in addition it can be made difficult to see by people around the user, being covered where necessary by makeup.
The film-forming composition preferably includes at least one active substance for pharmaceutical and/or cosmetic treatment of the skin.
The applicator element preferably has external capillarity, i.e. the film-forming composition is deposited on its surface only.
The applicator element preferably has a covering on its surface that is constituted by fine flexible bristles advantageously put into place by an electrostatic method on a non-porous support.
The bristles are preferably 0.2 mm to 1.5 mm long and the wiper member is preferably constituted by a block of foam.
When the applicator element has external capillary, it does not absorb the composition in depth, such that when it is pressed against the skin there is no danger of it reabsorbing a significant amount of composition that has already been deposited thereon. In contrast, when the applicator element is constituted by a foam having open cells, then the foam can reabsorb, to some extent, the composition that has already been deposited on the skin.
The invention also provides a method of forming a peel-off film in situ and of the desired format on the surface of the skin, the method comprising the steps consisting in:
applying on the skin by means of an applicator element, preferably having external capillarity, a layer of substantially constant thickness of a film-forming composition coming from a receptacle fitted with a wiper member, the applicator element and the wiper member being selected in such a manner that the applicator element leaves a peel-off film on the surface of the skin, the density per unit area of the film lying in the range 1 mg/cm
2
to 15 mg/cm
2
, the film-forming composition preferably including at least one active substance for pharmaceutical and/or cosmetic treatment of the skin; and
allowing the film-forming composition deposited on the skin by the applicator element to dry.
The invention also provides a cosmetic treatment method, comprising the steps consisting in:
applying on the skin by means of an applicator element, preferably having external capillarity, a layer of substantially constant thickness of a film-forming composition coming from a receptacle fitted with a wiper member, the applicator element and the wiper member being selected in such a manner that the applicator element leaves a peel-off film on the surface of the skin, the density per unit area of the film lying in the range 1 mg/cm
2
to 15 mg/cm
2
, the film-forming composition further including one or more active substances having a cosmetic effect on the skin;
leaving the film-forming composition deposited on the skin by the applicator element for the length of time required by the treatment; and
removing the film.
The invention also provides the use of at least one active substance having a curative effect on the skin in the manufacture of a film-forming composition for application to the skin to form a peel-off film, the film-forming composition, once dry, constituting a film on the surface of the skin, the density per unit area of the film lying in the range 1 mg/cm
2
to 15 mg/cm
2
.
The invention also provides a patch comprising a film-forming composition that has polymerized and at least one active substance for cosmetic and/or pharmaceutical treatment of the skin, the thickness of the patch being substantially constant and its density per unit area lying in the range 1 mg/cm
2
to 15 mg/cm
2
.
REFERENCES:
patent: 3033213 (1962-05-01), Joss et al.
patent: 3132653 (1964-05-01), Gazdik
patent: 3146806 (1964-09-01), Ginsburg
patent: 5309929 (1994-05-01), Toll
patent: 5690130 (1997-11-01), Gunderman et al.
patent: 5722436 (1998-03-01), Vandromme et al.
patent: 0640302 (1994-08-01), None
patent: 2488111 (1982-02-01), None
patent: 2736248 (1995-07-01), None
patent: 2745272 (1996-02-01), None
patent: 2099292 (1982-12-01), None
patent: 9517837 (1995-07-01), None
L'Oreal
Manahan Todd #E.
Oliff & Berridg,e PLC
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