Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1997-05-15
1998-10-27
McGinty, Douglas J.
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510407, 510437, 510405, 134 38, A61K 7047, C11D 726
Patent
active
058278079
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to an enamel remover, more specifically to an enamel remover which has a sufficient removing ability and which has no stimulant odor and gives no damages such as whitening to nails and skins.
DESCRIPTION OF THE RELATED ART
As for an enamel remover used for removing an enamel coated on nails, removers in which acetone, ethyl acetate, and butyl acetate are blended in large quantities have so far been widely used because of strong removing power thereof. However, because of a strong stimulant odor in the use thereof and a strong dehydrating power and degreasing power thereof, nails and skins are often damaged. Proposed in JP-A-7-17832 as a countermeasure therefore are an one containing propylene carbonate and aliphatic alcohol as main components and an enamel remover containing ethylene carbonate and monohydric lower alcohol as main components.
However, users usually paint enamel twice in order to prolong a life of the enamel on nails, and among them, some users paint the enamel three or more times one over another or use the enamel in combination with a base coat and a top coat. In such cases, it has been impossible to remove the enamel rapidly enough with conventional enamel removers.
JP-A-01 242 515 discloses a nail lacquer remover containing 40-60% propylene carbonate, 20-40 weight % ethanol, 0.1-5 weight % of hydroxypropyl cellulose and 0-40 weight % water as essential components. This composition is described as not damaging nails, not having a solvent smell and not raising the danger of ignition.
JP-A-01 160 908 reveals an enamel nail remover comprising 5.0-70.0 weight % acetone, 5.0-50.0 weight % water, 5.0-50.0 weight % propylene carbonate, 0.5-30.0 weight % liquid oil of hydrocarbon and 0.5-30.0 weight % hydrocarbon solvent.
In U.S. Pat. No. 4,801,331, a nail lacquer remover composition is disclosed which essentially consists of 30-65% by weight of a carbonate selected from ethylene carbonate, propylene carbonate, butylene carbonate and glycerine carbonate; 10-50% by weight of 1,3-dimethyl-2-imidizolidinone; 0.2-20% by weight of hydroxypropyl cellulose; and 13-40% by weight of water.
Accordingly, it has been desired to develop an enamel remover which satisfies sufficiently the above users and does not damage nails and skins and which has no stimulant odor in the use thereof.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a drawing showing a preferred composition ratio of three structural elements of the composition of the present invention. The concentrations of the components shown in the drawing are the concentrations of the respective components, based on the whole amount of (A), (B) and (C).
SUMMARY OF THE INVENTION
Intensive investigations made by the present inventors in view of the above existing circumstances have resulted in finding that an enamel remover, which will be described below, provides remarkable advantages for removing enamel on nails and has no stimulant odor during the use thereof and that the nails and skins are not damaged thereby, and have come to complete the present invention.
The present invention provides an enamel remover characterized in that it contains acetone, ethylene carbonate, and monohydric C.sub.1 -C.sub.6 alcohol and the combination thereof as essential components in a specific range makes it excellent in terms of a removing power, odor and prevention of damage of nails.
DETAILED DESCRIPTION OF THE INVENTION
The present invention provides an enamel remover composition comprising: 25 to 50 wt % and (C) in a proportion of 10 to 60 wt %, based on the whole amount of (A)+(B)+(C).
Preferable contained are 10 to 30 wt % of (A) ethylene carbonate or propylene carbonate, 25 to 40 wt % of (B) acetone, and 30 to 55 wt % of (C) monohydric C.sub.1 -C.sub.6 alcohol. This range of (A) is preferred from the viewpoint of the removing power. This range of (B) is preferred from the viewpoint of a good odor and a good feeling in touch. This range of (C) is preferred from the viewpoint of after-sensation after use.
the
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Patent Abstracts of Japan, vol.013 No. 423 Sep. 1989, JP A 01 160908.
Aoshima Masayoshi
Shigeta Akira
Kao Corporation
McGinty Douglas J.
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