PATENT ACT 1970
(39 OF 1970)
COMPLETE SPECIFICATION
(FORM-2)
TITLE - MOSQUITO REPELLANT PATCH AND METHOD THEREOF.
NAME OF APPLICANT - ANKUR DRUGS AND PHARMA LTD.
ADDRESS OF APPLICANT 20th Floor, Lotus Business Park,
Off. Andheri Link Road, Andheri (West), Mumbai - 400 053, India
FIELD OF INVENTION:
The present invention relates to insect repellent patch. More particularly to a mosquito repellent patch.
BACKGROUND AND PRIOR ART:
The prior art mentioned below is in no way acknowledged as common knowledge and is by way of illustration only.

Insects and mosquitoes in particular are common human irritants. Such insects can cause many diseases such as malaria, dengue, etc. A study conducted in tropical Bolivia titled, Are mosquitoes diverted from repellent-using individuals to non-users? Results of a field study in Bolivia (Moore SJ, Davies, Trop Med Int. Health. 2007 Apr;12(4):532-9) concludes that mosquitoes in the tropics are diverted from users who have a repellent near them. Thus concluding that insect repellents and specially mosquito repellents can play a major role in the prevention of tropical diseases such as malaria, dengue etc.
Many compositions exist that are used as insect and particularly mosquito repellents. These compositions utilize different combinations of natural and chemical products that have to be either burnt to release the chemicals formed on reaction. Certain formulations may also be sprayed or dispensed into the air through dispensers.
These know methods of dispensing mosquitoes and other insects produce strong chemical vapors. The chemical vapors emitted by such repellants can cause irritation and allergic reactions of various kinds. Also, many coils and dispensers require the use of electricity to operate. Other methods such as sprays utilize insecticides, which are harmful, particularly where small children are involved.
US patent 4164561 (Hautmann, 1974) describes a mosquito repellent composition prepared from essential oils and chemicals. The invention discloses the use of chemicals and naturally occurring essential oils which

are mixed to form a liquid composition which can be sprayed. Such spraying releases the chemical and oil mixture in fine droplets which can cause irritation. Also the spray contains harmful insecticides that make the product unsafe for children, who could be affected by the spray or may accidentally ingest the product.
The present invention overcomes the various problems faced by the products and processes used in the present method and compositions for preparing insect repellents. The present invention uses wholly natural products and its release form is much less harmful than spray, or other heating tablets or heating coils.
The present invention allows for an insect repellent tablet or patch that can be placed at any location and can repels mosquitoes at a better rate than those other common methods.
SUMMARY OF THE INVENTION:
It is an object of the present invention to provide an insect repellent, especially a mosquito repellent that is made from wholly natural products.
It is yet another object of the present invention to provide a mosquito repellent which is non toxic and is environmentally friendly.
It is yet another object of the present invention to provide a mosquito repellent which is long lasting, and thus cost effective.
It is yet another object of the present invention to provide a process to manufacture a mosquito repelling patch.

It as another object of the present invention to provide a mosquito repellent that is made only from natural sources.
DESCRIPTION OF PREFERRED EMBODIMENTS:
In the following description of various embodiments including the preferred embodiment, reference is made to the accompanying examples, which show by way of illustration the embodiments in which the invention may be practiced. Those skilled in the art will readily appreciate that the detailed description given herein explanatory purposes as the invention extends beyond these limited embodiments.
Many studies have shown that natural oils from various plant and animal extracts have great insect repellent properties. The paper, Repellency'of oils of lemon eucalyptus, geranium, and lavender and the mosquito repellent MyggA natural to Ixodes ricinus (Acari: Ixodidae) in the laboratory and field (Jaenson TG et. al., Medical Entomology Unit, J Med Entomol. 2006 Jul; 43(4):731-6.) discuss the efficacy of natural oils against insects and their roll in repelling insects. The study has found that many natural oils including lavender oil {(Lavandula stoechus) and germanium oil (Cymbopogon schoenanthus) have a high efficacy in repelling mosquitoes in particular.
The present invention relates to a composition and manufacture process thereof, for a novel insect repellent, more particularly a mosquito

repellent that can be packaged as patch which has an adhesive side that can be attached to any surface.
The repellent is prepared from a plurality of naturally occurring substances namely from up to four essential natural compounds including,
Lemon grass oil which is obtained from Cymbopogon citratus generally known as lemongrass. Lemongrass is an herb with a natural aroma. For hundreds of years, lemongrass has been a source of natural aromatic oil. The lemongrass herb is popularly called 'choomana poolu' in India and it often denotes the 'Indian Melissa oil', which is widely used in Ayurveda as an antibacterial, an analgesic, and in treatment of fever. Besides its therapeutic uses, Lemongrass contains lemon grass oil which demonstrates strong mosquito repellant property without any side effects. Lavender oil is obtained from lavender (Lavandula stoechas), has served as one of the most wonderful remedies for treating skin disorders, asthma, flatulence, anxiety, allergies, and itching. Lavender oil demonstrates strong mosquito and insect repellant traits.
Geranium oil is obtained from {Cymbopogon schoenanthus) has mosquito repellency property. It is also known in the treatment of acne, bruises, burns, cuts, dermatitis, eczema, hemorrhoids, lice etc. Cloves (Syzygium aromaticum) are a spice which demonstrates many therapeutic properties including antiseptic, analgesic, antifungal properties. Clove oil is also a natural mosquito repellant.
The said natural ingredients may be used in a composition that demonstrates excellent insect repellent, specially mosquito repellent properties, when at least two are combined as up to 150 mg of Lemon

grass oil (Cymbopogon citratus), up to 75.00 mg Lavender oil (Lavandula stoechas), up to 12.5 mg Geranium oil (Cymbopogon schoenanthus), and up to 12.5 mg of Clove oil (Syzygium aromaticum).
The said natural oils may be mixed and sprayed into cut patches of fabric. The said patches may be cut into various shapes and sizes. The said patches have an adhesive layer on the dorsal part of the patch.
The said adhesive layer is attached to the patch in a specific process so as to preserve the patch and effectively attach the adhesive layer to the said patch.
The following steps may be followed in one embodiment of the invention to prepare the mosquito patch attached to an adhesive layer:
• Preparing the adhesive mass would require the preparation of a first mixture of adhesive components, wherein the said adhesive components comprise of commonly used adhesives.
• The second step involves a machine spreading the self adhesive mass, wherein the following steps are observed:
A silicone transparent polyester roll unrolls and passes across a spreading head roller where the said adhesive mass mixture of step one is fastened to the said silicone side of the polyester. The said adhesive mixture of step one with the silicone layer is-attached to a woven -non woven fabric without exertion of any pressure. The Silicone polyester combined with humid adhesive mass is passed through a tunnel within the said spreading machine wherein the machine consists of a succession of ovens in which

warm air is blown to allow solvent evaporation. On coming out of the tunnel adhesive mass is exsiccated. The whole fabric fastened to mass and silicone polyester passes across two rollers which properly press it helping further adhesion and is wound in rolls called Jumbo rolls.
• The third step involves unrolling and cutting of the said Jumbo rolls, wherein, the said jumbo rolls are placed on a machine which unrolls them and cuts them into stripes of desired measure; the same machine rolls them in rolls.
• The fourth step involves the preparation of the essential oils mixture, wherein the essential oils are mixed in the composition of up to 150 mg of Lemon grass oil [Cymbopogon citratus), up to 75.00 mg Lavender oil (Lavandula stoechas), up to 12.5 mg Geranium oil (Cymbopogon schoenanthus), and up to 12.5 mg of Clove oil (Syzygium aromaticum).
• The fifth step on the process involves the spraying of the patch, wherein, the said cut roll of step three is placed on a machine with two rolls of fastened fabric, one of the said fabrics is printed and the other is blank or neutral. The patch is unrolled and driven to the mould to cut the
, patch in the desired shape and dimension and during this step the snick of the silicone polyester protective layer is made.
• Patch is then spraying with essential oils. After spraying, patches
are packaged into individual pouches.
The said patches could be of any shape and dimension.

The present invention may be used by placing it anywhere in the vicinity of mosquitoes.
The adhesive patch enables the patch to be attached to hard surfaces such as wood or metal, as well as soft surfaces such as fabrics etc.
Having fully described the preferred embodiments, other equivalent or alternative methods for mosquito repellent patch, it will be apparent to those skilled in the art. The invention has been described above by way of illustration, and the specific embodiment disclosed is not intended to limit the invention to the particular forms disclosed. For example, the embodiments described in the foregoing were directed to providing a clear idea about the preferred modes, including the best mode, of making and using the present invention. However, in alternate embodiments, those skilled in the art may implement the invention without deviating from the central idea of the invention. The invention therefore covers all modifications, equivalents, and alternatives falling within the spirit and scope of the following claims.

CLAIMS:
We claim,
1. A unique mosquito repellent comprising of more than one natural oils, wherein, the said nature oils are Lemon grass oil (Cymbopogon citratus), Lavender oil {Lavandula stoechus), Geranium oil (Cymbopogon schoenanthus), and Clove oil (Syzygium aromaticum).
2. A unique mosquito repellent as claimed in claim 1, wherein the composition of the said Lemon grass oil (Cymbopogon citratus) could be up to 150mg.
3. A unique mosquito repellent as claimed in claim 1, wherein, the composition of the said lavender oil (Lavandula stoechas) could be up to 75mg.
4. A unique mosquito repellent as claimed in claim 1, wherein, the composition of the said Geranium oil (Cymbopogon schoenanthus) could be up to 12.5mg.
5. A unique mosquito repellent as claimed in claim 1, wherein, the composition of the said Clove oil (Syzygium aromaticum) could be up to 12.5mg.
6. A unique mosquito repellent as claimed in claim 1, wherein, the said composition of natural oils may be impregnated onto a polyester-silicone patch.

7. A unique mosquito repellent as claimed in claim 2, wherein, the said silicone polyester patch has an adhesive layer.
8. A process to manufacture a unique mosquito repelling patch, wherein, the said process comprises of the following steps:

a) preparing a mixture of adhesives;
b) spreading the said adhesives onto the silicone side of a polyester silicone role and fastening to woven - non - woven fabric by means of rollers within a machine;
c) heating the adhesive polyester combination of step b in a series of ovens within the said machine;
d) drying the heated adhesive polyester combination;
e) rolling the dried adhesive polyester combination into large sheets;
f) Cutting the large sheets into rolls into smaller rolls.
g) preparing a composition of natural oils, wherein the said combination comprising , up to 150 mg of Lemon grass oil {Cymbopogon citratus), up to 75.00 mg Lavender oil (Lavandula stoechas), up to 12.5 mg Geranium oil {Cymbopogon schoenanthus), up to 12.5 mg of Clove oil {Syzygium aromaticum);
h) combining the two rolls of fastened fabric obtained in step f.
i) sending the combination of step h to a mould to form a patch; and
adding the snick to the said polyester silicone layer of the roll j) spraying the said patch formed in step i with the combination of
natural oils prepared in step g. k) packing the patched in individual pouches.

9. A process to manufacture a unique mosquito repelling patch as claimed in claim 9, wherein, the shape of the said patch may be circular or square or rectangle or any other non geometric form.
10.A process to manufacture a unique mosquito repelling patch as claimed in claim 9, wherein, the shape of the patch is square, wherein, the are of the patch may be from 1 cm. square to up to 64 cm. square.