Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2001-07-19
2004-02-10
Delcotto, Gregory (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S119000, C510S200000, C510S201000, C510S203000, C510S477000, C510S476000, C510S488000
Reexamination Certificate
active
06689727
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention refers to a composition for the removal of nail polish, adhesive, glue, discolourations or other adhesive products on skin and/or nails, which composition do not contain any volatile solvents. The invention also refers to a composition for removal of colour, varnish or other adhesive products on objects.
2. Description of the Related Art
The most common conventional compositions for removal of nail polish are volatile solvents, such as acetone, or ketone derivatives, with or without the addition of for example oil, the possible oil addition having the purpose to reduce dehydration of the skin and the nails. It also occurs that perfume is added to moderate the smell of solvent.
Due to an increased environmental awareness and thereby increased demands on reduction of the outlet of solvents efforts have been made to replace acetone with other compounds. A closer examination of many of the present nail polish removal compositions on the market today presented as “acetone free” reveals that acetone has been replaced by other solvents which are as harmful as acetone to the environment, often different types of ketones, for example methyl ethyl ketone. Only in Sweden solvents in nail polish removal compositions result in approximately 60 tons of emissions each year.
Other, related problems with conventional solvent based nail polish removal compositions are that they as a consequence of repeated use cause bleached and fragile nails, involve a risk for chronical problems due to inhalation of organic solvents together with that they are inflammable.
One problem encountered during the development of alternative, to the environment more harmless compositions, is that today's nail polishes become more difficult to remove, since they through development have been made better, often with a hardening effect, to prevent undesired wear of the nail polish.
A known nail polish remover, based on conventional solvents such as acetone, is disclosed in GB 884 626. In that patent is also mentioned that the compositions can be designed (prepared) as an emulsion, by the addition of a lipophilic ingredient, for example one or more of different oils or fatty acid esters.
Another known nail polish remover, also based on solvents, is disclosed in DE 43 19 913, wherein it is mentioned that as an additive different types of (synthetic) esters can be used.
From JP 10-36227 (abstract) it is known to use the compounds isopropylmyristate, 2- ethylhexylpalirtate and isobutyloctanoate for removal of water based nail polish, these compounds being inflammable, volatile solvents which furthermore are irritating, allergenic and poisonous to water organisms.
In EP 179 675 there is shown, apart from a number of other compositions, a solvent for nail polish. The composition includes triglycerides (“composition lipidique”) which solely constitute a minor part of the composition. The major part of the composition presented in the EP document constitutes inflammable volatile solvents.
U.S. Pat. No. 3,906,106 shows a nail polish remover, which contains 85% of ethyl acetate, which is an inflammable volatile solvent.
In WO 94/16671 and in WO 93/18734 there is shown a composition wherein the disclosed components ethyl lactate and cethyl acetate constitute inflammable volatile or evaporating solvents. Furthermore this composition includes D-limonene, which is a terpene occuring i.a. in natural extracts from oils from e.g. lemon peel. D-limonene has in itself, and in mentioned recipes the characteristics of being inflammable, environmentally hazardous (among other very poisonous for water living microorganisms), not easy degradable, irritating to the health and has furthermore the duty of marking.
JP I-216911 (Abstract) along with WO 89/07931 (Abstract) show a composition for removal of nail polish. The solvents mentioned are volatile or evaporating. Moreover, the compositions are irritating and dehydrating, the reason why the addition of oil is proposed. The oil has however no removing effect in itself.
FR 2,645,417 shows a composition for removal of nail polish which primarily contains acetone, which is an inflammable and volatile solvent.
To sum up, all the above mentioned documents show compositions including inflammable volatile solvents, which result in air pollution and which are dehydrative and possibly allergenic to the skin.
It is further known from SE 504 066 to use one or more lower alkyl esters of fatty acids, for example rape-oil methyl ester, for paintbrush wash and/or removal of paint, such as linseed oil paint, acrylate paint, alkyd oil paint or alkyd/acrylate paint on objects. It is mentioned that the esters should act for 1-2 hours, whereafter the composition is washed off by denaturated alcohol, an aqueous tartaric acid solution or sodium bicarbonate, these washing compositions constituting poisonous/irritating and environmentally hazardous chemical solutions. Thus, it would seem impossible for the skilled person of the present invention to use the composition shown in SE 504066 on humans for removal of nail polish having an essentially different formula or other adhesive products.
As regards the use of the composition shown in SE 504 066 for paintbrush wash or removal of industrial paint on objects, is it also a great disadvantage that the composition needs to act for such a long time, that it has to be removed by the above mentioned washing solutions and that the procedure in certain cases, must be repeated.
It can also be mentioned that the discovery that oil seed rape methyl esters have the effect to solve industrial paint was made in the middle of the 1980's, in connection with the sale of oil seed rape methyl ester (RME) as drive fuel for tractors and agriculture machines. Shortly after, it was discovered that the paint and plastic dissolving effects of RME caused tremendous problems. It was shown that RME had a dissolving effect on paint and contamination coatings on the tank walls, which in turn caused contamination of the fuel. It was further discovered that RME dissolved plastic packages and fuel hoses, which caused fuel leakage.
OBJECTS AND SUMMARY OF THE INVENTION
The primary object of the present invention is to present a composition for the removal of nail polish, plaster, adhesives, discolourations or other adhesive (chemical) products on skin and/or nails, which composition does not include any volatile solvents. Especially, the invention presents a composition for removal of nail polish and/or care of nails, which composition does not include any volatile solvents.
This can be achieved by a composition according to claim
1
.
DETAILED DESCRIPTION
The composition is mainly based on natural oils, which preferably are of plant origin and which preferably have a natural nutritional content, including for example different vitamins, the main active substance in the composition being one or more esters, preferably methyl esters, of one or more of these natural oils. The oils are preferably selected from the group consisting of oil seed rape oil, almond oil, sunflower oil, olive oil, maize oil, coconut oil, lemon oil and mixtures of oils. A mixture of oils here means a mixture of natural oils, mainly of plant origin, e.g. conventional so-called food oil. Most preferred is a methyl ester of oil seed rape oil, so-called oil seed rape methyl ester, to which esters of more exclusive oils can be added to increase the exclusiveness of the composition and/or to add vitamins etc. Very exclusive compositions can be based substantially on esters of the superior oils, such as almond oil, coconut oil or lemon oil.
The fatty acid part of the ester/esters of natural oils can be one or more aliphatic (C
8
-C
22
) monocarboxylic acids, preferably (C
12
-C
22
) monocarboxylic acids. As an example of a possible composition of oil seed rape methyl ester the following is mentioned:
Ester
Amount % by weight
C
11
H
23
COOCH
3
0-1
C
13
H
27
COOCH
3
0-1
C
15
H
31
COOCH
3
2-8
C
17
H
35
COOCH
3
0-6
C
17
H
33
COOCH
3
50-60
C
17
H
31
COOCH
3
Boyle Fredrickson Newholm Stein & Gratz S.C.
Delcotto Gregory
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