# Patent

## Title
Cosmetic films

## Abstract

The present invention includes a cosmetic film. The film includes butylphthalimide isopropylphthalimide, one or more primary film forming polymers and one or more secondary film forming resins.

## Background
RELATED APPLICATIONS
This application is a continuation-in-part of U.S. patent application Ser. No. 10/152,314, filed May 20, 2002, now U.S. Pat. No. 6,939,551 which claims priority to U.S. Provisional Patent Application Ser. No. 60/292,424, filed May 21, 2001, which are incorporated herein by references.


TECHNICAL FIELD
The present invention relates to compositions useful as cosmetic films formed from plasticizers alternative to replace phthalates. The compositions herein are particularly useful as coatings for mammalian nails, and are useful as basecoat, topcoat and colored nail polish compositions.
BACKGROUND OF THE INVENTION
Nail polish compositions have long been promoted as having long wear, good adhesion, and/or resistance to chipping. While some nail polish compositions have provided better wear than others, a need remains for nail polish compositions providing long wear and employing plasticizers other than phthalate compounds.
Nail polish has, over the decades, been developed to have multi-faceted functionality. In addition to having functionality, polish must be aesthetically pleasing when applied to fingernails and toenails in order to provide a desired color to the nails. The polish must also be resistant to chipping, cracking, splintering and peeling when subjected to a wide range of environments. Over the years, nail polishes have been developed which have these properties to varying degrees.
Nail polishes have typically included pigments and dyes that are suspended in a viscous matrix. The viscous matrix typically includes a film forming component and a plasticizer, namely dibutyl phthalate. The nail polish has also included an adhesion promoter, a polymeric component formed by the condensation polymerization of formaldehyde or other sulfonamide formaldehyde resin.
It has been observed over the years that phthalates and aldehyde condensation product exposure has been undesirable for some users because the users are sensitized to these materials. There has been an effort to replace the polymeric component with other materials that do not cause a sensitization. However, the replacement materials have produced a nail polish that is deficient in features such as high gloss, defined color, long wear, chip resistance, nail flexibility and adherence.
SUMMARY OF THE INVENTION
One embodiment of the present invention includes a cosmetic film. The film includes butylphthalimide isopropylphthalimide, one or more primary film forming polymers, one or more suspending agents, and one or more secondary film forming resins.
Another embodiment of the present invention includes a nail enamel. The clear nail enamel includes butylphthalimide isopropylphthalimide. The nail enamel also includes a secondary film-forming polymer, nitrocellulose, a suspending agent selected from the group consisting of stearalkonium bentonite, stearalkonium hectorite, montmorillonite clays, treated and untreated silica, and a polyester resin.
One other nail enamel embodiment of the present invention is a colored nail enamel, that includes butylphthalimide isopropylphthalimide in a concentration of about 1 to 10 percent by weight; ethyl acetate in a concentration of about 37 to 39 percent by weight; butyl acetate in a concentration of about 19 to 26 percent by weight; nitrocellulose in a concentration of about 11 to 14 percent by weight; isopropyl alcohol in a concentration of about 5 to 6 percent by weight; optionally, polyester resin in a concentration of about 10 to 12 percent by weight; optionally, tosylamide/epoxy resin in a concentration of about 8 to 10 percent by weight; stearalkonium hectorite as a suspension agent in a concentration of about 0.5 to 2 percent by weight; acrylic copolymer in a concentration of about 1.5 percent by weight; and coloring agents in a concentration effective to produce color.
The present invention also includes a colored nail enamel, comprising: ethyl acetate; butyl acetate; nitrocellulose; isopropyl alcohol; tosylamide/epoxy resin; butylphthalimide isopropylphthalimide in a concentration of about 1 to about 10 percent by weight; and coloring agents.
The present invention also includes a method for making a cosmetic film that has a hardness, adhesion, and flexibility, gloss, and long shelf life, comprising:
providing one or more primary film forming polymers;
providing one or more secondary film forming resins;
providing butylphthalimide isopropylphthalimide;
providing one or more suspending agents;
and blending the primary film forming polymer, secondary film forming resin and butylphthalimide isopropylphthalimide (BIP), wherein the BIP has a weight percent concentration of about 1 to 10 weight percent to make a cosmetic film having a hardness, adhesion, flexibility, gloss and long shelf life.
Another embodiment of the present invention is a method for coating nails. The method includes providing a cosmetic film that includes butylphthalimide isopropylphthalimide and applying the cosmetic film to one or more mammalian nail.
One other embodiment includes a colored nail enamel. The colored nail enamel includes an acetate, nitrocellulose, butylphthalimide isopropylphthalimide, stearalkonium hectorite, tosylamide/epoxy resin and coloring agents.
Other embodiments include cosmetic films that comprise butylphthalimide isopropylphthalimide; films that comprise butylphthalimide; and films that comprise isopropylphthalimide.


DETAILED DESCRIPTION
One embodiment of the present invention includes a nail enamel composition that comprises butylphthalimide isopropylphthalimide, BIP. The nail enamel of the present invention is, for some embodiments, free of phthalates and, for some embodiments, free of aldehyde condensation products. The nail enamel composition also includes one or more primary film forming polymers and one or more secondary film forming resins. The nail enamel compositions of the present invention include primary film forming polymers and combinations thereof in an amount ranging from about 5 to 20% by weight, and, for some embodiments, in the range of about 9 to 14% by weight.
In addition to the primary film forming polymer and secondary film forming resin, the nail enamel compositions according to the present invention also include at least one plasticizer to soften and to plasticize the primary film forming polymer. The plasticizer as well as combinations thereof, is in either liquid or solid form.
The nail enamel compositions additionally include one or more suspending agents. The suspending agents usable in the compositions include stearalkonium bentonite, stearalkonium hectorite, montmorillonite clays, treated or untreated silica and other suspending agents known by those skilled in the art.
In its product aspect, embodiments of the present invention provide nail enamel compositions which are suitable for use as base coats, color coats, clear coats and protective top coats while maintaining the desirable characteristics of the nail enamel compositions. The nail enamel compositions display good lastingness and chip resistance, and are safe to use with frequent applications.
The present invention includes a use of butylphthalimide isopropylphthalimide, Pelemol BIP, as a plasticizer in nail enamel compositions. Hereinafter, Pelemol BIP is referred to as BIP. While Pelemol BIP is described herein, it is believed that butylphthalimide and isopropylphthalimide, when obtained separately, can be blended to obtain a plasticizer suitable for use in the nail enamel of the present invention. It is also believed that butylphthalimide and isopropylphthalimide are individually usable as plasticizers in nail enamel compositions.
As used herein, the term, “cosmetic film” refers to a nail enamel usable as a base coat, color coat, clear coat and protective top coat. As used herein, “lacquer,” “polish” and “enamel” are used interchangeably.
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 described and referenced by 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 methods described and claimed 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.
The cosmetic properties of the nail varnish of the present invention include good adhesion to the surface of the nail. In addition, the varnish film is homogeneous and glossy, and exhibits a degree of flexibility that prevents premature cracking and flaking off the nail. In order to obtain such properties, the varnish film is sufficiently soft. This softness allows the film to withstand impact and deformations of the matrix of the nail. However, the film retains an acceptable degree of gloss and is sufficiently hard to prevent scratches and cracks. Nail enamel embodiments are believed to be resistant to cracking for at least about ten days after application to a nail.
The film-forming polymers used in the lacquer of the present invention are selected from polyurethanes, polyacryls, polymethacryls, cellulosic polymers, styrene-acryl copolymers, polystyrene-polyacryl mixtures, polysiloxanes, polyethers, polyesters, urethane-acryl copolymers, cellulose acetate propionate, siloxane-urethane copolymers, polyurethane-polymethacryl mixtures, silicone-acryl copolymers, vinyl acetate polymers, and mixtures thereof. Exemplary secondary film forming resins usable in the formulations of the present invention include, for example, toluene sulfonamide/epoxy resins, e.g. tosylamide and non-drying alkyd resins, acrylic polymers and copolymers, polyurethane, polyacryls, polymethacryls, cellulosic polymers, styrene-acryl copolymers, polystyrene-polyacryl mixtures, polysiloxanes, polyethers, polyesters, cellulose acetate propionate, urethane-acryl copolymers, siloxane-urethane copolymers, polyurethane-polymethacryl mixtures, silicone-acryl copolymers, vinyl acetate polymers, and mixtures thereof. It is also within the scope of the nail enamel compositions of the present invention to include aldehyde condensation products such as arylsulfonamide formaldehyde resins, specifically toluene sulfonamide formaldehyde resin which is a condensation product of formaldehyde and toluene sulfonamide. These secondary film forming resins are added to the nail enamel compositions of the present invention to strengthen and add acceptable wear characteristics to the primary film forming polymer. In general, the amount of secondary film forming resin ranges form about 2 to 20 percent by weight of the composition, and preferably, about 5 to 12 percent of the composition.
Nitrocellulose is a primary film-forming component in some formulation embodiments of the present invention. A use of low levels of nitrocellulose tends to result in the coated films being easily damaged. On the other hand, a use of high levels of nitrocellulose results in the coated film being too hard and inflexible, resulting in undesirable peeling and hence poor wear resistance.
Other satisfactory film-forming components include cellulose acetate, cellulose acetate butyrate, cellulose acetate propionate, vinyl polymers, polyurethanes, and mixtures of polyurethanes with cellulose acetate butyrate or with nitrocellulose as well as methacrylate and acrylate type polymers. The film-forming component is present in an amount sufficient to provide a stable film upon the nail following the application of the nail enamel to the nail. In general, amounts of the film-forming component of about 8 to about 40 weight percent for some embodiments, and about 10 to about 15 weight percent for other embodiments, are satisfactory. Examples of nitrocellulose are the so called nitrocellulose RS 1⁄8 sec., RS 1⁄4 sec., and nitrocellulose 1⁄2 sec, and nitrocellulose RS 5–6 sec. and 60–80 sec., which have higher viscosities than the earlier grades. The term “RS” refers to the brand of nitrocellulose with a nitrogen content of about 11.2 to 12.8 percent with solubility in esters, ketones, and glycol ethers manufactured by GreenTree Technologies, previously known as Hercules, Inc. The terms 1⁄8 sec., 1⁄2 sec, 5–6 sec, and so forth represent viscosity and refer to the time it takes for a ball to fall a given depth in the material. Nitrocellulose is typically supplied in 70% concentrations, wet with 30% ethyl or isopropyl alcohol. As used in the present invention, the percentage of nitrocellulose in a given composition is on a dry basis.
In one embodiment, the resins include Shin-Etsu KP-543 (acrylic-silicone resin), Uniplex 670P (polyester resin), PCI Group Inc. Lacq-Hard LH-75 (polyamide resin).
Suitable plasticizers are incorporated in the formulation to provide flexibility while exhibiting the wear and chip resistance and shelf stability needed for the composition. Without intending to be limited by theory, it is believed that plasticizers cause a composition to become more easily deformed. Typically, plasticizers are needed in the compositions of the present invention. The compositions of the present invention may comprise from 0% to about 15%, for some embodiments, from 0% to about 10%, and in some embodiments, from about 0% to about 7%, by weight of the composition, of a plasticizer. One or more plasticizers are optionally added to the present compositions.
In one embodiment, the plasticizers include camphor, castor oil, Unitex Chemical Corporation Uniplex 108 (N-ethyl-o/p-Toluenesulfonamide), Uniplex 125A (di-(2-ethylhexyl) adipate), Uniplex 165 (diisobutyl Adipate), Uniplex 260 (Glyceryl Tribenzoate), Uniplex 552 (Pentaerytritrol tetrabenzoate), Phoenix Chemical Inc. Pelemol DIA (diisopropyl adipate), Pelemol TMEB-35 (Trimethylolethane Tribenzoate), Pelemol PTB-35 (Pentaerythyl Tetrabenzoate), Pelemol GTO (Glyceryl Trioctanoate), Alzo International Dermol DPG-2B (Dipropylene glycol dibenzoate), Dermol B-246 (Benzyl Laurate Myristate/Palmitate), Eastman Chemical Corporation TXIB (2,2,4-trimethyl-1,3-pentanediol diisobutyrate), SAIB (Sucrose acetate isobutyrate), Ferro Santicizer 160 (Butyl Benzyl Phthalate), Velsicol Chemical Corporation Benzoflex 284 (Propylene glycol dibenzoate, Dipropylene glycol dibenzoate, propylene glycol monobenzoate) Benzoflex 354 (2,2,4-trimethyl-1,3-pentanediol dibenzoate), Velate 368 (2-ethylhexyl benzoate), CasChem DIPA (diisopropyl adipate).
For some embodiments, plasticizers include Unitex Chemical Corporation Uniplex PX5-115 (N-Alkyl Toluenesulfonamide), Phoenix Chemical Inc. Pelemol B66 (Benzyl Benzoate), Eastman Chemical Corporation Triacetin (Glyceryl triacetate), Uniplex 82 Acetyl Tributyl Citrate.
The nail enamel compositions of the present invention include one or more solvents such as those generally used in conventional nail enamel compositions. Examples of these solvents include ethyl acetate, methyl acetate, n-butyl acetate, iso-butyl acetate, propyl acetate, iso-propyl acetate, amyl acetate, ethanol, isopropanol, n-amyl alcohol, n-butyl alcohol, iso-butanol, cellosolve, butyl cellosolve acetate, cellosolve acetate, methyl cellosolve acetate, butyl cellosolve, ethyl cellosolve, n-butanol, xylene, aromatic (containing phenyl groups), ethers, ketones for example acetone, methyl ethyl ketone, alkanes for example, pentane, cyclopentane, hexane, heptane, cyclohexane, cyclic ethers for example, tetrahydrofuran and 1,4-dioxane, phenylated solvents for example, xylene, chlorinated hydrocarbons for example, methylene chloride, chloroform, glycol ethers, N-methyl pyrrolidone alkyl lactate, and methylchloroform. It is also contemplated that toluene, if desired, can be included as a solvent or diluent for use in a nail enamel composition in accordance with the compositions of the present invention.
The aforementioned solvents can be used alone or in mixtures thereof. In general, the amount of solvent used in the compositions of the present invention range from about 53 to 82% by weight, and, for some embodiments about 65 to 75% by weight. For some embodiments, organic solvents are selected from alcohols and esters having between one and about twenty-five carbon atoms. For some embodiments, alcohols are monohydric. It is also contemplated that, if desired, monohydric alcohols are selected from ethanol, iso-propanol, and n-propanol. For some embodiments, esters are selected from ethyl acetate and butyl acetate. For other embodiments, it is contemplated that polyhydric alcohols are usable.
The following are examples and Laboratory test results of enamels made according to the invention. These examples and test results are presented in order to illustrate features of particular embodiments of the present invention and are not intended to limit the scope of the present invention.







TABLE 1







EXAMPLE 1










Clear Topcoat
1A
1B
1C


Ingredient
Weight percent
Weight percent
Weight percent





Ethyl Acetate
40.00
40.00
40.00


Butyl Acetate
21.00
21.00
21.00


Nitrocellulose (dry)
14.00
14.00
14.00


Isopropyl alcohol
 6.00
 6.00
 6.00


Polyester resin
12.00
12.00
12.00


(75% solids)


Dibutyl phthalate
 7.00
—
—


Butylphthalimide


Isopropylphthalimide
—
 7.00
—


Acetyl tributylcitrate
—
—
 7.00









The clear topcoat 1B is a topcoat formulation of the present invention, having a butylphthalimide isopropylphthalimide, BIP, concentration of 7.00 percent by weight. The clear topcoat 1 A is a control, having a dibutyl phthalate component. The clear topcoat 1 C is a control, having an acetyl tributylcitrate component.
Comparative mechanical film properties of Example 1 of the present invention were measured using a hardness test, adhesion test, and flexibility test as described herein.
Hardness: Using the Erichsen Pendulum Damping Tester Model 299/300 according to Persoz. (NFT 30-016). A standard 6.0 mils wet film thickness (W.F.T) Bird film applicator (MCD Industries) was used to apply films onto (4 ins×6 ins) clean glass plates. The tests were conducted on the films after air-drying at ambient temperature for the specified times below.










TABLE 2









Time interval after initial
Average # oscillations












application
1A
1B
1C







 2 Hrs.
23
26
26



 24 Hrs.
50
53
58



 48 Hrs.
66
73
75



 72 Hrs.
75
77
81



 96 Hrs.
76
74
80



168 Hrs.
94
96
98










Adhesion: Using Cross-Cut Tape Test to meet the standards of ASTM Test Method D-3359 on 6.0 mils (W.F.T) applied to (4 ins×6 ins) clean glass panels. A standard 6.0 mils (W.F.T) Bird film applicator (MCD Industries) was used to apply films onto (4 ins×6 ins) clean glass plates. The tests were conducted on the films after air-drying at ambient temperature for the specified times below.

Ratings of adhesion test results according to the classification: 5=Best; 1=worst












TABLE 3







Time interval after initial






application
1A
1B
1C









24 Hrs.
5B
5B
5B



48 Hrs.
5B
5B
5B



72 Hrs.
5B
5B
5B



96 Hrs.
5B
5B
5B



168 Hrs. 
5B
5B
5B










Flexibility: According to standards of ASTM Test Method D-522 and D 1737. A standard 6.0 mils (W.F.T) Bird film applicator (MCD Industries) was used to apply films onto clean aluminum panels (6 ins×4 ins Mill Finish 3105H24 supplied by Q-panel Lab Products, Cleveland, Ohio). Coated panels were uniformly bent using the BYK-Gardner Cylindrical Mandrel. The tests were conducted on the films after air-drying at ambient temperature for the specified times below.













TABLE 4







Time interval after initial






application
1A
1B
1C









24 Hrs.
Good
Good
Good



48 Hrs.
Good
Good
Good



72 Hrs.
Good
Good
Good



96 Hrs.
Good
Good
Good



168 Hrs. 
Good
Good
Good










The mechanical tests illustrated that the topcoat formulation performance of the formulation of the present invention was at least as good, when measured in terms of hardness, adhesion, and flexibility, as the performance of the topcoat free of BIP and containing dibutyl phthalate and the topcoat free of BIP and containing acetyl tributylcitrate. The topcoat formulation of the present invention did not produce any adverse effects in users.
The following are examples of compositions of colored nail enamel that demonstrate embodiments under the scope of the present invention. There are other possible variations that are within the scope and hence these examples are not to be construed as limitations.









TABLE 5






EXAMPLE 2
EXAMPLE 3



Red creme
Mauve pearl



shade nail enamel
shade nail enamel


Ingredient
Weight percent
Weight percent

















Ethyl Acetate
38.410
37.950


Butyl Acetate
25.600
25.300


Nitrocellulose (dry)
12.010
11.860


Isopropyl alcohol
5.381
5.080


Tosylamide/epoxy resin
8.532
9.080


*Butylphthalimide
7.498
6.850


Isopropylphthalimide


Stearalkonium Hectorite
0.960
1.036


Phosphoric acid
0.017
0.018


Benzophenone-1
0.175
0.188


Iron Oxide Red
0.100
—


Iron Oxide black
0.050
—


D&C Red No. 7 Calcium Lake
0.539
—


FD&C Yellow#5 Aluminum Lake
0.234
—


Titanium Dioxide
0.324
0.515


Dimethicone
0.170
0.176


Bismuth Oxychloride
—
0.400


Mica
—
1.387


D&C Red No. 34
—
0.160









Presented below is a summary of performance of specified plasticizers when used with BIP. The BIP concentration used was between 6.80 and 7.50 percent by weight. The first table shows adhesion and hardness in a red creme shade of nail enamel, made with polyester resin B75. The Pelemol GTO formulation displayed a comparatively high hardness to the BIP formulation but a lower adhesion. The BIP in each of polyester resin B75 and tosylamide/epoxy resin E75 displayed slight cracking at 168 hours. The Triacetin and BIP, Dermol DPG-2B and BIP, Pelemol DIA and BIP, and Santicizer 160 and BIP formulations displayed an adhesion that dropped off over time and a hardness that was comparatively low up to about 48 hours, but became greater over time. These formulations did not perform as well as the BIP formulation. The GTB and BIP, TXIB and BIP, and BB and BIP formulations displayed strong adhesion and hardness over the period of the test. A similar performance was observed when a Tosylamide/Epoxy Resin E75 was substituted for the Polyester Resin B75. These formulations displayed cracking within 24 to 48 hours.
In another test, plasticizer performance was measured in conjunction with BIP in a 75/25 weight ratio and Polyester Resin B75. The performance of the plasticizer with BIP in a 75/25 ratio was comparable to performance, as measured by adhesion and hardness, of formulations of plasticizers and full strength BIP. The performance of plasticizers in a formulation with BIP in a 75/25 ratio and Tosylamide/Epoxy Resin E75 was, in some instances, weaker than for full strength BIP formulations or the formulation with BIP 75/25 and Polyester Resin B75. The Pelemol GTO displayed a very low adhesion. Plasticizers that cracked within 24 to 48 hours included Uniplex 365, Pelemol GTO, Uniplex 165A, and Benzoflex 284.
In one other test, plasticizers GTB, TXIB, BB and SAIB were measured in a formulation that included BIP in a 50/50 ratio and Polyester Resin B75 and with BIP in a 50/50 ratio and Tosylamide Resin E75. The hardness and adhesion of enamels made with these formulations was substantially the same as formulations made with full strength BIP. Each of these formulations displayed cracking within 24 to 48 hours. Testing of the nail enamel was performed over a period of seven days. It is believed that the nail enamel formulations that include BIP remain substantially free of cracks for at least about 10 days.
Evaluation of Plasticizers in Combination with BIP







TABLE 6







Plasticizer and Polyester Resin B75










ADHESION
HARDNESS


















Red crème shade
24 h
48 h
72 h
144 h
168 h
2 h
24 h
48 h
72 h
144 h
168 h





















BIP
5
5
4
4
4
34
85
99
120
124
145


Dermol DPG-2B
5
3
3
3
2
41
97
107
129
145
142


Pelemol DIA
5
4
2
2
2
56
117
135
177
210
207


Santicizer 160
5
4
3
2
2
36
105
109
140
161
155


GTB
4
4
4
4
4
46
107
118
127
147
149


TXIB
4
4
4
4
4
70
149
164
166
187
184


BB
5
5
4
4
4
62
138
149
157
171
173


SAIB
3
2
2
2
2
64
159
159
168
213
226


Triacetin
5
5
5
4
3
37
75
87
109
137
141


Uniplex 365
5
5
4
4
3
68
106
108
124
143
141


Pelemol GTO
1
1
1
1
1
76
153
188
206
220
209


Uniplex 165A
3
3
2
2
2
98
150
162
168
185
173


Benzoflex 284
5
4
4
3
2
45
94
116
121
155
139


Acetyl tributyl citrate
5
4
4
4
3
48
121
133
155
163
165


Dibutyl phthalate
5
4
4
3
3
58
117
128
157
154
167
















TABLE 7







Plasticizers and Tosylamide/Epoxy Resin E75










ADHESION
HARDNESS


















Red crème shade
24 h
48 h
72 h
144 h
168 h
2 h
24 h
48 h
72 h
144 h
168 h





















BIP
5
5
4
4
4
31
82
101
102
116
127


Dermol DPG-2B
5
5
5
5
5
38
97
106
128
141
142


Pelemol DIA
5
4
4
4
3
53
128
145
184
210
205


Santicizer 160
5
4
3
3
3
37
103
107
130
147
145


GTB
5
5
4
3
3
41
95
116
121
137
142


TXIB
4
4
4
3
3
58
128
148
151
176
172


BB
5
5
5
4
4
51
120
138
144
176
160


SAIB
3
3
2
2
2
57
149
171
182
176
213


Triacetin
5
5
5
4
4
34
71
94
92
141
137


Uniplex 365
5
5
4
3
3
58
107
118
126
142
141


Pelemol GTO
5
5
5
4
4
71
161
191
200
210
209


Uniplex 165A
3
2
2
2
2
88
140
164
174
184
181


Benzoflex 284
5
4
4
3
3
37
86
108
124
149
146


Acetyl tributyl citrate
5
5
5
5
4
33
110
128
146
152
155


Dibutyl phthalate
5
5
5
5
4
40
123
138
148
153
159



















TABLE 8









ADHESION
HARDNESS


















Red crème shade
24 h
48 h
72 h
144 h
168 h
2 h
24 h
48 h
72 h
144 h
168 h










Plasticizer/BIP in a 75/25 ratio and Polyester Resin B75


















Dermol DPG-2B
5
5
5
5
5
35
87
126
128
130
137


Pelemol DIA
3
2
2
2
2
44
116
147
154
165
155


Santicizer 160
5
5
5
5
5
37
98
131
144
155
148


Triacetin
5
5
5
5
5
37
86
93
119
133
133


Uniplex 365
5
5
5
5
5
61
136
140
147
162
168


Pelemol GTO
3
3
2
2
1
61
116
123
132
156
183


Uniplex 165A
5
5
5
5
5
83
151
168
175
180
186


Benzoflex 284
5
5
5
5
5
43
98
112
113
144
143







Plasticizer/BIP in a 75/25 ratio and Tosylamide Resin E75


















Dermol DPG-2B
5
4
3
3
3
41
89
123
136
141
135


Pelemol DIA
5
4
4
3
3
36
103
147
160
169
164


Santicizer 160
5
4
4
3
3
37
92
125
143
143
134


Triacetin
5
5
2
2
2
33
75
80
108
131
121


Uniplex 365
5
5
3
2
2
47
170
114
148
160
151


Pelemol GTO
0
0
0
0
0
54
100
103
110
130
128


Uniplex 165A
4
4
2
2
2
58
156
142
175
182
190


Benzoflex 284
4
4
3
2
2
35
88
95
126
141
140



















TABLE 9









ADHESION
HARDNESS


















Red crème shade
24 h
48 h
72 h
144 h
168 h
2 h
24 h
48 h
72 h
144 h
168 h










Plasticizer/BIP in a 50/50 ratio and Polyester Resin B75


















GTB
5
5
5
4
4
30
85
109
109
120
158


TXIB
5
5
4
4
4
37
97
118
121
119
131


BB
5
5
4
4
3
37
96
115
119
126
143


SAIB
5
5
3
3
3
34
105
118
139
165
167







Plasticizer/BIP in a 50/50 Ratio and Tosylamide/Epoxy Resin E75


















GTB
5
5
5
5
5
32
88
109
138
119
139


TXIB
5
5
5
5
4
36
94
118
128
135
143


BB
5
5
5
5
5
33
89
116
129
135
145


SAIB
5
5
5
5
5
36
103
138
148
166
174









The results for use of BIP to make a Pearl shade nail enamel are shown below. The BIP showed very good values for adhesion and hardness when used with all of the resins tested. The BIP performance was better than Uniplex when used with Polyester Resin B75. The BIP performance was better than Triacetin when used with Tosylamide Epoxy Resin E75. A formulation of BIP in a 75/25 ratio and Polyester Resin B75 displayed a performance better than Pelemol GTO and Dermol DPG-2B, when used as the sole plasticizer. A 50150 ratio of BIP with Polyester Resin B75 in one embodiment, and Tosylamide Epoxy Resin E75, in another embodiment, displayed results comparable to adhesion and hardness results shown with GTB, TXIB, BB and SAIB.










TABLE 10









ADHESION
HARDNESS


















Pearl shade
24 h
48 h
72 h
144 h
168 h
2 h
24 h
48 h
72 h
144 h
168 h










Plasticizers and Polyester Resin B75


















BIP
5
5
5
5
5
37
82
118
120
138
146


GTB
5
5
5
5
5
43
104
102
128
144
143


TXIB
4
4
3
3
3
74
130
143
154
193
183


BB
5
5
5
5
5
64
140
157
154
175
168


SAIB
4
4
4
4
4
69
162
179
168
204
210


Dermol DPG-2B
5
4
3
3
2
33
86
86
118
143
137


Pelemol DlA
5
4
3
3
2
40
112
111
153
186
176


Santicizer 160
5
4
3
3
2
45
114
125
132
156
166


Triacetin
5
5
5
5
5
35
83
108
122
147
143


Uniplex 365
5
5
5
5
5
66
128
160
149
157
168


Pelemol GTO
5
5
5
4
4
74
148
200
213
200
219


Uniplex 165A
2
2
2
2
2
88
143
154
148
176
159


Benzoflex 284
5
5
5
5
5
34
83
101
133
154
155


Acetyl tributyl citrate
5
5
5
5
5
42
108
129
154
159
160


Dibutyl phthalate
5
5
5
5
5
48
120
131
159
159
158







Plasticizers and Tosylamide/Epoxy Resin E75


















BIP
5
5
5
5
5
27
78
101
112
129
134


GTB
5
5
5
5
5
32
98
116
118
113
146


TXIB
5
4
4
4
4
52
130
139
145
170
178


BB
5
5
5
5
5
48
117
138
141
160
168


SAIB
5
4
4
4
4
56
154
177
173
217
202


Dermol DPG-2B
5
5
5
4
4
32
74
86
119
134
138


Pelemol DIA
5
4
3
3
3
42
120
169

176
162


Santicizer 160
5
4
4
4
3
44
117
130
153
163
171


Triacetin
2
2
2
2
2
29
73
92
113
149
143


Uniplex 365
2
2
2
2
2
53
123
132
147
169
168


Pelemol GTO
5
5
5
4
4
74
148
200
213
200
209


Uniplex 165A
5
5
4
3
3
89
183
189
189
192
202


Benzoflex 284
5
5
5
5
5
34
83
101
133
154
155


Acetyl tributyl citrate
5
5
5
5
5
33
110
128
146
152
155


Dibutyl phthalate
5
5
5
5
4
40
123
138
148
153
159
















TABLE 11





Pearl shade















Plasticizer/BIP in a 75/25 Ratio with Polyester Resin B75


















Dermol DPG-2B
5
4
3
2
3
31
75
109
115
127
124


Pelemol DIA
5
4
2
3
2
40
107
128
151
151
142


Santicizer 160
5
4
4
4
3
40
91
124
148
148
145


Triacetin
5
5
5
5
5
37
86
93
119
133
133


Uniplex 365
5
5
5
5
5
61
136
140
147
162
168


Pelemol GTO
3
3
2
2
1
61
116
123
132
156
183


Uniplex 165A
5
5
5
5
5
83
151
168
175
180
186


Benzoflex 284
5
5
5
5
5
43
98
112
113
144
143







Plasticizer/BIP in a 75/25 Ratio with Tosylamide/Epoxy Resin E75


















Dermol DPG-2B
5
5
4
4
3
30
69
110
123
131
120


Pelemol DIA
5
4
4
3
4
34
106
145
153
160
146


Santicizer 160
5
5
5
5
5
35
91
128
139
146
140


Triacetin
5
5
5
5
5
31
79
83
132
156
153


Uniplex 365
5
5
5
5
5
49
115
127
155
160
163


Pelemol GTO
5
5
5
5
5
52
126
139
137
192
190


Uniplex 165A
5
5
5
5
4.5
65
150
168
180
186
193


Benzoflex 284
5
5
5
5
5
33
87
94
122
140
139







Plasticizer/BIP in a 50/50 Ratio with Polyester Resin B75


















GTB
5
5
5
4
3
41
100
122
121
133
158


TXIB
5
5
4
4
4
37
97
118
121
119
131


BB
5
5
4
4
3
37
96
115
119
126
143


SAIB
5
5
3
3
3
34
105
118
139
165
167







Plasticizer/BIP in a 50/50 Ratio with Tosylamide Epoxy Resin E75


















GTB
5
5
5
5
5
37
86
114
128
140
153


TXIB
5
5
5
5
5
39
101
128
152
155
156


BB
5
5
5
5
5
43
102
118
129
153
139


SAIB
5
5
5
4
4
45
114
134
139
158
167









Additional Examples using Pelemol BIP in Combination with Glyceryl Triacetate












TABLE 12






FORMULA
FORMULA
FORMULA
FORMULA
FORMULA


Red Crème shade
EC
FC
GC
HC1 
IC2




















Ethyl Acetate
41.271
41.238
41.386
41.262
41.262


Butyl Acetate
22.234
22.200
22.282
22.218
22.218


Nitrocellulose (dry) 1⁄4 sec R.S
9.603
9.603
6.005
9.603
9.603


1⁄2 sec R.S
2.407
2.407
6.005
2.407
2.407


Isopropyl alcohol
5.380
5.380
5.150
5.15
5.15


Tosylamide/epoxy resin
8.532
7.644
7.644
7.644
8.880


Butylphthalimide


isopropylphthalimide
7.498
7.498
7.498
2.983
4.488


Acrylic- silicone copolymer
0.000
0.955
0.955
0.955
0.955


Glyceryl Triacetate
0.000
0.000
0.000
4.516
3.010


Stearalkonium Hectorite
0.960
0.960
0.960
0.960
0.960


Benzophenone-1
0.175
0.175
0.175
0.175
0.175


Iron Oxides
0.153
0.153
0.153
0.153
0.153


Phosphoric acid
0.017
0.017
0.017
0.017
0.017


D&C Red No.6
0.673
0.673
0.673
0.673
0.673


D&C Red No. 7 Calcium Lake
0.539
0.539
0.539
0.539
0.539


Titanium Dioxide
0.324
0.324
0.324
0.324
0.324


FD&C Yellow No. 5
0.234
0.234
0.234
0.234
0.234


Aluminum Lake





ratios of BIP/ Glyceryl Triacetate


C = crème shade


P = Pearl shade


(1) Formula HC: Ratio of BIP/GTA - 40/60


(2) Formula IC: Ratio BIP/GTA- 60/40


(3) Formula HP: Ratio of BIP/GTA 30/70


(4) Formula IP: Ratio of BIP/GTA 50/50















TABLE 13









Red Crème shade













FORMULA
FORMULA
FORMULA
FORMULA
FORMULA


TEST RESULTS
EC
FC
GC
HC
IC















Hardness:







 2 Hrs.
25
26
24
22
23


 24 Hrs.
60
65
61
55
53


 48 Hrs.
72
80
77
63
67


 72 Hrs.
83
91
88
70
74


144 Hrs.
119
119
119
96
101


168 Hrs.
122
139
136
119
122


Adhesion:


 24 Hrs.
5
5
5
5
5


 48 Hrs.
5
5
5
5
5


 72 Hrs.
5
5
5
5
5


144 Hrs.
4
5
5
5
5


168 Hrs.
4
5
5
5
5


Flexibility:


 24 Hrs.
Ok
Ok
Ok
Ok
Ok


 48 Hrs.
Ok
Ok
Ok
Ok
Ok


 72 Hrs.
Ok
Cracked
Ok
Ok
Ok


144 Hrs.
Stretched
Cracked
Ok
Ok
Ok


168 Hrs.
Cracked
Cracked
Cracked
Cracked
Cracked





ratios of BIP/ Glyceryl Triacetate


C = crème shade


P = Pearl shade


(1) Formula HC: Ratio of BIP/GTA - 40/60


(2) Formula IC: Ratio BIP/GTA- 60/40


(3) Formula HP: Ratio of BIP/GTA 30/70


(4) Formula IP: Ratio of BIP/GTA 50/50


















TABLE 14






FORMULA
FORMULA
FORMULA
FORMULA
FORMULA


Pearl Shade
EP
FP
GP
HP3
1P4




















Ethyl Acetate
40.581
40.576
40.576
40.576
40.576


Butyl Acetate
21.853
21.849
21.849
21.849
21.849


Nitrocellulose (dry) 1⁄4 sec R.S
11.858
11.858
5.929
11.858
11.858


1⁄2 sec R.S


5.929


Isopropyl alcohol
5.082
5.082
5.082
5.082
5.082


Tosylamide/epoxy resin (solids)
9.081
8.081
8.081
8.081
8.081


Butylphthalimide


isopropylphthalimide
6.854
6.854
6.854
2.081
3.427


Acrylic- silicone copolymer solids)
0.000
1.009
1.009
1.009
1.009


Glyceryl Triacetate
0.000
0.000
0.000
4.772
3.427


Stearalkonium Hectorite
1.036
1.036
1.036
1.036
1.036


Bismuth Oxychloride
0.40
0.40
0.40
0.40
0.40


Dimethicone
0.176
0.176
0.176
0.176
0.176


Iron Oxides
0.811
0.811
0.811
0.811
0.811


Benzophenone-1
0.188
0.188
0.188
0.188
0.188


Phosphoric acid
0.018
0.018
0.018
0.018
0.018


Mica
1.387
1.387
1.387
1.387
1.387


D&C Red No. 34
0.160
0.160
0.160
0.160
0.160


Titanium Dioxide
0.515
0.515
0.515
0.515
0.515


















TABLE 15









Pearl shade













FORMULA
FORMULA
FORMULA
FORMULA
FORMULA


TEST RESULTS
EP
FP
GP
HP3
IP4















Hardness:







 2 Hrs.
21
25
24
21
22


 24 Hrs.
64
64
63
49
51


 48 Hrs.
76
84
81
64
68


 72 Hrs.
99
98
93
74
77


144 Hrs.
126
121
126
109
108


168 Hrs.
128
140
139
125
126


Adhesion:


 24 Hrs.
5
5
5
5
5


 48 Hrs.
5
5
5
5
5


 72 Hrs.
5
5
5
5
5


144 Hrs.
5
5
5
5
5


168 Hrs.
5
5
5
5
5


Flexibility:


 24 Hrs.
Ok
Ok
Ok
Ok
Ok


 48 Hrs.
Ok
Ok
Ok
Ok
Ok


 72 Hrs.
Ok
Ok
Ok
Ok
Ok


144 Hrs.
Stretched
Stretched
Stretched
Ok
Ok


168 Hrs.
Sl. Cracked
Sl. Cracked
Stretched
Ok
Ok









Testing of the red creme shade and the pearl shade was performed to confirm that BIP formulations are usable in formulations containing a variety of types and concentrations of coloring agents. The red creme formulations displayed lesser adhesion and flexibility than pearl shade formulations. This performance parallels a tendency for the red creme shade to chip more easily in phthalate-based formulations.
The nail enamel embodiments of the present invention are made by blending the BIP into the formulation alone, or, optionally, with other plasticizers. Other ingredients are added in accordance with methods known to those skilled in the art. The nail enamel is dispensed into containers. The containers typically have applicators that are an integral part of the container or that are packaged with the container. One type of applicator is a brush. The enamel is applied to nails as a base coat or a topcoat.
A consumer use study was conducted on the mauve pearl shade. The study included seven test subjects. The two products tested included a formulation that included BIP and that was phthalate-free and a formulation that included phthalates. There was no difference detected between the two products for overall wear and chipping. Gloss and appearance were also comparable, although a preference for the gloss of the BIP containing formula was noted in the laboratory.
Each of any foregoing patents, patent applications and references described herein is incorporated by reference in its entirety. Having described particular embodiments in accordance with the present invention, it is believed that other modifications, variations and changes will be suggested to those skilled in the art in view of the teachings set forth herein. It is, therefore, to be understood that all such variations, modifications, and changes are believed to fall within the scope of the present invention as defined by the appended claims.

## Claims

1. A cosmetic film, comprising butylphthalimide isopropylphthalimide; one or more primary film forming polymers, a suspending agent, and one or more secondary film forming resins.

2. The cosmetic film of claim 1, further comprising a modifying plasticizer.

3. The cosmetic film of claim 1 wherein the secondary film-forming polymers are selected from the group consisting of polyurethanes, polyacryls, polymethacryls, cellulosic polymers, styrene-acryl copolymers, polystyrene-polyacryl mixtures, polysiloxanes, polyesters, polyethers, cellulose acetate propionate, urethane-acryl copolymers, siloxane-urethane copolymers, vinyl acetate polymers, and mixtures thereof.

4. The cosmetic film of claim 1 wherein the secondary film forming polymers are selected from a group consisting of acrylic-silicone resin, polyester resin, and polyamide resin.

5. The cosmetic film of claim 2 wherein the modifying plasticizer is selected from the group consisting of N-ethyl-o/p-Toluenesulfonamide, di-(2-ethylhexyl)adipate, diisobutyladipate, glyceryl tribenzoate, pentaerytritrol tetrabenzoate, diisopropyl adipate, trimethylolethane tribenzoate, pentaerythyl tetrabenzoate, glyceryl trioctanoate, dipropylene glycol dibenzoate, benzyl laurate myristate/palmitate, 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, sucrose acetate isobutyrate, butyl benzyl phthalate, propylene glycol dibenzoate, dipropylene glycol dibenzoate, propylene glycol monobenzoate, 2,2,4-trimethyl-1,3-pentanediol dibenzoate, 2-ethylhexyl benzoate, diisopropyl adipate, N-alkyl toluene sulfonamide, benzyl benzoate, glyceryl triacetate, and acetyl tributyl citrate.

6. The cosmetic film of claim 1, further comprising one or more solvents.

7. The cosmetic film of claim 6 wherein the solvent is selected from a group consisting of ethyl acetate, methyl acetate, n-butyl acetate, iso-butyl acetate, propyl acetate, iso-propyl acetate, amyl acetate, ethanol, isopropanol, n-amyl alcohol, n-butyl alcohol, iso-butanol, cellosolve, butyl cellosolve, ethyl cellosolve, n-butanol, xylene, aromatic ethers, ketones, methyl ethyl ketone, alkanes, cyclopentane, hexane, heptane, cyclohexane, cyclic ethers, phenylated solvents, chlorinated hydrocarbons, and toluene.

8. The nail enamel composition of claim 1, wherein the suspending agent is selected from the group consisting of stearalkonium bentonite, stearalkonium hectoriet, montmorillonite clays, treated and untreated silica.

9. A colored nail enamel, consisting essentially of butylphthalimide isopropylphthalimide in a concentration of about 1 to 10 percent by weight; ethyl acetate in a concentration of about 37 to 39 percent by weight; butyl acetate in a concentration of about 19 to 26 percent by weight; nitrocellulose in a concentration of about 11 to 14 percent by weight; isopropyl alcohol in a concentration of about 5 to 6 percent by weight; optionally, polyester resin in a concentration of about 12 percent by weight; optionally, tosylamide/epoxy resin in a concentration of about 8 to 10 percent by weight; stearalkonium hectorite as a suspension agent in a concentration of about 0.5 to 2 percent by weight; optionally, acrylic copolymer in a concentration of about 1.5 percent by weight; and coloring agents in a concentration effective to produce color.

10. A colored nail enamel, comprising: ethyl acetate; butyl acetate; nitrocellulose; isopropyl alcohol; tosylamide/epoxy resin; butylphthalimide isopropylphthalimide in a concentration of about 1 to about 10 percent by weight; one or more suspending agents, and coloring agents.

11. A method for making a cosmetic film and that has a hardness, adhesion, flexibility, gloss and long shelf life that prevent cracking for at least about 7 days after application to a nail, comprising:
providing one or more primary film forming polymers;
providing one or more secondary film forming resins;
providing butylphthalimide isopropylphthalimide;
providing one or more suspending agents; and blending the primary film forming polymer, secondary film forming resin and butylphthalimide isopropylphthalimide in a weight percent concentration of about 1 to 10 weight percent to make a cosmetic film having a hardness, adhesion, flexibility, gloss and long shelf life.

12. The method of claim 11, further comprising blending the butylphthalimide isopropylphthalimide with another plasticizer.

13. The method of claim 11, further comprising adding color agents to the cosmetic film.

14. A colored nail enamel, comprising:
An acetate;
Nitrocellulose;
butylphthalimide isopropylphthalimide;
tosylamide/epoxy resin;
stearalkonium hectorite; and
coloring agents.

15. The colored nail enamel of claim 14 wherein the butylphthalimide isopropylphthalimide concentration is within a range of about 1 and 10 percent by weight.