Drug – bio-affecting and body treating compositions – Manicure or pedicure compositions
Reexamination Certificate
1998-05-01
2001-10-23
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Manicure or pedicure compositions
C424S401000
Reexamination Certificate
active
06306375
ABSTRACT:
TECHNICAL FIELD
The present invention relates to compositions and kits useful as cosmetic or therapeutic agents and films formed therefrom having defined surface energy and polarity properties. The compositions, kits, and films herein are particularly useful as polishes for mammalian nails.
BACKGROUND OF THE INVENTION
Consumers use nail polishes to cosmetically enhance their nails or protect the nails from everyday conditions and stressors. However, these nail polish compositions are deficient in many respects, including their inability to provide long wear. Nail polishes which are known or currently available often exhibit deterioration, particularly in the form of chipping or peeling, in as few as one or two days. Such poor wear often forces consumers to remove their nail polish soon after original application and reapply additional nail polish to the nails. Consumers may also attempt to correct the unsightly appearance of the deteriorating nail polish by “touching-up” the areas of the nail which exhibit the deterioration, a practice which actually impairs the overall look of the nail polish. Finally, consumers may choose to do nothing about the deterioration and allow, for example, chipping and peeling to progress, resulting in nails which are not only minimally protected from the environment but are unsightly as well.
The art is replete with nail polish compositions which are promoted as having long wear, good adhesion, and/or resistance to chipping. While some nail polish compositions provide better wear than others, a need remains for nail polish compositions providing long wear.
Extreme examples of nail polish compositions which exhibit inadequate adhesion are those which are easily and completely peeled or stripped off the nails without the use of a solvent. See, e.g., EP 0,680,742, Mellul et al., assigned to L'Oreal.
Furthermore, other nail polish compositions are completely removable with water and, therefore, are not practical for normal use and do not provide adhesive and/or long wear properties under everyday conditions. See, e.g., JP 05-155,737, Itsumi et al., assigned to Yuho Chemical Co. Ltd. and EP 0,679,384, Ramin et al., assigned to L'Oreal.
It would therefore be desirable to provide nail polish compositions having improved wear properties including, for example, improved adhesion to the nail. It has been discovered that nail polishes exhibiting surface energies and polarities over defined ranges, as described herein, provide enhanced adhesion of nail polish to the nail. The present inventors have surprisingly discovered nail polish compositions and kits which, when applied to mammalian nails, form films which meet these ranges. Accordingly, by virtue of their adhesive properties, the present compositions and kits provide nail polish films exhibiting long wear at a superior level not provided by the nail polishes which are presently known and used.
SUMMARY OF THE INVENTION
The present invention relates to compositions and kits which provide films exhibiting defined surface properties, namely surface energies and/or polarities. The present kits comprise two or more compositions, preferably a basecoat composition, a topcoat composition, and, optionally, a midcoat composition, wherein at least one of the compositions, preferably the basecoat composition, provides defined surface properties as defined herein. Each composition comprises a film-forming polymer, a liquid diluent, and, optionally, other components. The present film-forming polymers are selected from polyurethanes, polyacryls, polymethacryls, cellulosic polymers, styrene-acryl copolymers, polystyrene-polyacryl mixtures, polysiloxanes, polyesters, urethane-acryl copolymers, siloxane-urethane copolymers, polyurethane-polymethacryl mixtures, silicone-acryl copolymers, vinyl acetate polymers, and mixtures thereof. When applied to mammalian nails, the basecoat compositions and kits comprising the basecoat compositions provide films exhibiting surface energies from about 32 mN/m to about 43 mN/m, more preferably from about 34 mN/m to about 42 mN/m, and/or polarities from about 0.19 to about 0.29, more preferably from about 0.20 to about 0.24. Compositions providing these properties comprise the film-forming polymer and a carrier comprising water and at least about 20% of a volatile organic solvent.
DETAILED DESCRIPTION OF THE INVENTION
The essential components of the present invention are herein described below. Also included are non-limiting descriptions of various optional and preferred components useful in the compositions and kits of the present invention.
The present invention can comprise, consist of, or consist essentially of any of the required or optional components and/or limitations described herein.
All percentages and ratios are calculated by weight unless otherwise indicated. All percentages are calculated based on the total composition unless otherwise indicated.
All component or composition levels are in reference to the active level of that component or composition, and are exclusive of impurities, for example, residual solvents or by-products, which may be present in commercially available sources.
Referred to herein are trade names for materials including, but not limited to, polymers and optional components. The inventors herein do not intend to be limited by materials under a certain trade name. Equivalent materials (e.g., those obtained from a different source under a different name or catalog (reference) number) to those referenced by trade name may be substituted and utilized in the kits, films, and methods herein.
All documents referred to herein, including all patents, patent applications, and printed publications, are hereby incorporated by reference in their entirety.
The compositions, kits, and films of the present invention are suitable for use as a nail polish for mammalian nails. As used herein, the term “suitable for use as a nail polish for mammalian nails” means that the compositions, kits, or films thereof are suitable for use in contact with mammalian nails without undue toxicity, incompatibility, instability, allergic response, and the like.
As used herein, the term “nail polish” is a comprehensive term describing a nail polish composition, film, product (including coloring products), system, kit, or the like, which is useful for providing, for example, aesthetic, therapeutic, or prophylactic benefits to the nail.
As used herein, the term “mammalian nail” means a keratinaceous plate present at the upper surface of the end of a finger or toe of a primate, most preferably a human, or the homologous claw or hoof of another mammal.
The layers and films herein may be joined to mammalian nails. As used herein, the terms “joined to”, “joined to mammalian nails”, or the like means in contact with or applied to a mammalian nail through physical forces in such a manner that the layer or film is contiguous to either the nail itself, a preceding layer, a succeeding layer, or matter previously applied to or existing on the nail. The layer or film may be “joined to” a mammalian nail, preceding layer, or succeeding layer even though other matter (such as another preceding or succeeding layer) intervenes. Accordingly, matter which is “joined to”, for example, a mammalian nail, need not actually be contiguous to that mammalian nail.
As used herein, the term “contiguous to” means directly joined to by physical forces through touching and boundary sharing with essentially no intervening matter.
As used herein, the term “film” means one or more layers of a nail polish suitable for use on mammalian nails which forms when one or more compositions of the kit is applied to, and dries on, mammalian nails.
As used herein, the term “layer” means one substantially dry coat of nail polish which forms when a composition is applied to, and dries on, a mammalian nail.
As used herein, the term “preceding layer” means a layer which is joined to a nail and is closer in proximity to the nail as compared to a reference layer joined to the same nail. For example, wherein a basecoat and a topcoat
Ellingson Peter Christopher
Smith, III Edward Dewey
Henderson Loretta J.
Howard Sharon
Little Darryl C.
Page Thurman K.
The Procter & Gamble & Company
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