Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Web – sheet or filament bases; compositions of bandages; or...
Reexamination Certificate
2002-02-19
2002-10-08
Webman, Edward J. (Department: 1617)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Web, sheet or filament bases; compositions of bandages; or...
C424S402000, C514S055000, C514S613000
Reexamination Certificate
active
06461635
ABSTRACT:
The present invention relates to a barrier-forming composition. In particular, the present invention is directed to a composition that, when applied to a surface, enhances the removal of an object having an adhesive-containing surface from the surface to which the composition is applied without substantially interfering with the ability of the adhesive to adhere to the surface. Preferentially, the composition is used to pre-treat skin (or hair or nails, all of which are examples of “a surface”) before adhering to the skin an object having an adhesive-containing surface. The barrier-forming composition significantly reduces redness and/or irritation that may be caused by the removal of the adhesive-containing surface from the skin.
Presently, when an object having an adhesive-containing surface is placed on another surface so that the object adheres to the other surface, removal of the objects may cause harm to the other surface. Such “other surfaces” include but are not limited to skin (mammalian or otherwise), hair and nails. For example, when an object having an adhesive-containing surface is placed on skin, removal of the object causes irritation and redness of the skin. Such “objects” include but are not limited to bandages, anti-smoking patches, and magnet-therapy discs.
This irritation can be addressed by pre-treating the other surface with a composition such as an aloe gel. A problem with pre-treating the other surface with aloe gel is that aloe gel can interfere with the ability of the adhesive surface to adhere to the other surface. For example, applying aloe gel to skin before applying a bandage would render the adhesive surface of the bandage useless. The bandage would simply slide off of the skin.
Surprisingly and unexpectedly, it has been found that a composition comprising panthenol, chitosan, and a suitable carrier forms a barrier on certain surfaces that enhances the removal of an object having an adhesive-containing surface from another surface without substantially interfering with the ability of the adhesive surface to adhere to the other surface. Panthenol, by itself, creates a thick, sticky film. Chitosan, by itself, creates a very thin film. Together in the same composition, panthenol and chitosan complement each other to form a pleasant barrier-forming composition.
SUMMARY OF THE INVENTION
The present invention provides a composition comprising panthenol or a derivative thereof, chitosan or a derivative thereof, and a carrier, wherein the composition forms a barrier that enhances the removal of an object having an adhesive-containing surface from another surface to which the composition is applied without substantially interfering with the ability of the adhesive to adhere to the other surface.
In another aspect, the present invention provides a method of forming a barrier on a surface that enhances the ease from which an object having an adhesive-containing surface is removable from the surface without substantially interfering with the ability of the adhesive to adhere to the surface. The method comprises applying a composition to the surface, where the composition comprising panthenol or a derivative thereof, chitosan or a derivative thereof, and a carrier.
In another aspect, the present invention provides a composition comprising by weight from about 0.1% to about 10% panthenol or a derivative thereof, from about 0.1% to about 15% chitosan or a derivative thereof, from about 5% to about 95% water, from about 0.1% to about 5% glycerin or a glycerin derivative, and from about 5% to about 95% alcohol.
All percentages referred to in the specification and claims are by weight unless otherwise stated.
REFERENCES:
patent: 4599209 (1986-07-01), Dautzenberg et al.
patent: 4772689 (1988-09-01), Lang et al.
patent: 4772690 (1988-09-01), Lang et al.
patent: 4780310 (1988-10-01), Lang et al.
patent: 4845204 (1989-07-01), Lang et al.
patent: 4932977 (1990-06-01), Lang et al.
patent: 5057542 (1991-10-01), Leuba et al.
patent: 5405314 (1995-04-01), Ohta et al.
patent: 5420197 (1995-05-01), Lorenz et al.
patent: 5496872 (1996-03-01), Constancis et al.
patent: 5686089 (1997-11-01), Mitra et al.
patent: 5750122 (1998-05-01), Evans et al.
patent: 5902798 (1999-05-01), Gouda et al.
patent: 57-180602 (1982-11-01), None
Scimeca John V.
Zimmerman Amy C.
Access Business Group International LLC
Brinks Hofer Gilson & Lione
Nguyen Helen
Nichols G. Peter
Webman Edward J.
LandOfFree
Method of forming a barrier on an epidermal surface does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of forming a barrier on an epidermal surface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of forming a barrier on an epidermal surface will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2954829