DESC:FORM 2

THE PATENTS ACT 1970
(SECTION 39 OF 1970)

&
THE PATENT RULES, 2003

COMPLETE SPECIFICATION
(SECTION 10 and RULE 13)

FUNGICIDAL OIL SUSPENSIONS COMPOSITION AND ITS PREPARATION PROCESS

We, COROMANDEL INTERNATIONAL LIMITED,
an Indian company incorporated under Companies Act of 1956, having its principal place of business at Coromandel House, Sardar Patel Road, Secunderabad – 500 003, Telangana, India.

The following specification particularly describes the invention and the manner in which it is to be performed:
FIELD OF INVENTION
The present invention relates to the composition of fungicidal oil suspension with enhanced flowability comprising dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent.
The present invention specifically relates to the composition of fungicidal oil suspension with enhanced flowability comprising dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier.
The present invention more specifically relates to composition of fungicidal oil suspension with enhanced flowability comprising dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier and other agrochemical auxiliaries.
The present invention also relates to the composition of fungicidal oil suspension with enhanced flowability comprising combination of dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, wherein the composition optionally contain strobilurin fungicide and / or copper based broad spectrum fungicide and other agrochemical auxiliaries.
The present invention also relates to the composition of fungicidal oil suspension with enhanced flowability comprising Mancozeb, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, dispersing agent, emulsifier and carrier agent as agrochemical auxiliaries.
The present invention also relates to the composition of fungicidal oil suspension with enhanced flowability comprising Mancozeb, Azoxystrobin, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, dispersing agent, emulsifier and carrier agent as agrochemical auxiliaries.

The present invention also relates to the composition of fungicidal oil suspension with enhanced flowability comprising Mancozeb, Copper oxychloride as copper based broad spectrum fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, dispersing agent, emulsifier and carrier agent as agrochemical auxiliaries.
The present invention also relates to process for the preparation of Mancozeb oil suspension with enhanced flowability comprising the steps of adding, stirring, homogenizing, milling and packaging.

BACKGROUND OF INVENTION
Mancozeb is a dithiocarbamate non-systemic agricultural fungicide with multi-site, protective action on contact. It is a combination of two other dithiocarbamates: maneb and zineb. The mixture controls many fungal diseases in a wide range of field crops, fruits, nuts, vegetables, and ornamentals. Mancozeb is widely used in the beet, cabbage, celery, peppers, beans, tomatoes, eggplant, potatoes, melons, such as watermelons, cotton, peanuts, wheat, corn, rice, hops, tea, rubber, citrus, grapes, mango, banana, lychee, pear, persimmon, peach, rose, rose, tobacco.
The chemical name of Mancozeb is [1,2-ethanediylbis[carbamodithioato](2-)] manganese mixture with [1,2-ethanediylbis[carbamodithioato](2-)]zinc. Mancozeb has a chemical formula of (C4H6MnN2S4)x(Zn)y. It has a structural formula of:

Mancozeb is a polymeric complex of the monomer illustrated which contains 20% manganese and 2.5% zinc.
Azoxystrobin is a broad-spectrum strobilurin fungicide of the class of synthetic compounds called ß-methoxyacrylates. Azoxystrobin is a systemic fungicide widely used in agriculture to protect crops from fungal diseases. Azoxystrobin is approved for use on a wide variety of crops in the United Kingdom, including asparagus, barley, broccoli, calabrese, brussels sprouts, onions, cabbages, carrots, cauliflowers, collards, combining peas, field beans, kales, leeks, oats, oilseed rape, potatoes, rye, triticale, vining peas and wheat. It is also approved for use of amenity turf such as golf courses, lawns and football pitches. Azoxystrobin is sold in the formulation of water dispersible granules and as a suspension concentrate in several concentrations.
Azoxystrobin is currently the only fungicide able to protect against all four major groups of fungal diseases. It is a xylem-mobile systemic fungicide with translaminar, protectant and curative properties. In cereal crops, its main outlet, the length of disease control is generally about four to six weeks during the period of active stem elongation.
The chemical name of Azoxystrobin is Methyl (2E)-2-(2-{[6-(2-cyanophenoxy) pyrimidin-4-yl]oxy}phenyl)-3-methoxyacrylate. Azoxystrobin has a chemical formula of C22H17N3O5 and a molecular mass of 403.4 g/mol. It has a structural formula of:

Copper oxychloride is an agricultural fungicide and bactericide used as a foliar spray. Since copper oxychloride is an organic copper compound, it manifests greater systemic toxicity than inorganic compounds. It exists in several forms with different appearances that can be prepared by different routes, but all are the same compound. Copper oxychloride finds real-world applications as a fungicide and also as a blue or green coloring agent in pyrotechnics, while also being used in niche applications as a catalyst for various reactions, such as the production of vinyl chloride.
Copper oxychloride is the common name given to the compound with formula Cu2(OH)3Cl and a molecular mass of 213.56 g/mol. It is also referred as dicopper chloride trihydroxide or sometimes basic copper chloride. It has a structural formula of:

EP Patent No. 2 068 625 B1 discloses liquid agrochemical composition, comprising at least one agrochemically active compound which is solid at room temperature, hydrogenated castor oil, at least one penetrant, at least one vegetable oil or mineral oil, at least one nonionic and/or at least one anionic dispersant.
IN Publication No. 1777/CHE/2014 discloses oil based antifungal formulation with enhanced uptake and activity comprising of combination of: a strobilurin fungicide as first active ingredient, a polymeric dithiocarbamate fungicide complex with zinc salt as second active agent and a thickener.
US Patent No. 6,387,848 B1 discloses non-aqueous, stable concentrated single-phase spreading oil (SO) formulation for crop protection active compounds comprising one or more crop protection active compounds; one or more plant oils; one or more polar aprotic organic solvents selected from the group consisting of N—C1-18 alkylpyrrolidone, N—C5-8 cycloalkylpyrrolidone, ?-butyrolactone and cyclohexane; and optionally one or more methylated plant oils.
US Patent No. 6,753,003 B1 discloses essentially anhydrous dithiocarbamate liquid formulation comprising at least one active ingredient from the class of the dithiocarbamates, an essentially anhydrous oil phase, polyhydroxystearic acid or a derivative thereof and/or an alkyl or alkenyl polyol ether alkoxylate, at least one anionic surfactant.
US Patent No. 6,767,865 B2 discloses agrochemical suspension formulation, which is dilutable in water, in the form of a suspension of solid particles including of one or more agrochemical active components and a dispersing agent including a water dispersible styrene (meth)acrylic copolymer which comprises units of acrylic acid, methacrylic acid, crotonic acid or a mixture of two or more of these.

US Patent No. 6,849,276 B1 discloses fungicidal, bactericidal or bacteriostic plant-protection composition comprising at least one inorganic salt, one oxide or one hydroxide of copper in suspension in an aqueous emulsion of at least one monoterpene.
US Patent No. 7,241,454 B2 discloses aqueous suspension of a pesticide which comprises strobilurin fungicide or mixture of strobilurin fungicide and one or more other pesticides, a non-ionic alkoxylate surfactant, naphthalene sulphonate-formaldehyde condensate, a non-ionic polymethyl methacrylate-polyethylene oxide graft copolymer, other additives and water.
US Patent No. 8,580,287 B2 discloses oil-based agrochemical compositions with increased viscosity, comprising (a) biocides, (b) hydrophobic carriers, and (c) polymers selected from the group consisting of poly(meth)acrylates, polymaleates and polyfumarates.
US Patent No. 9,706,771 B2 discloses agrochemical oil composition comprising one or more alkylpolysiloxanes of high silicone; one or more oils; and optionally one or more agrochemically active compounds, emulsifiers and other agrochemically acceptable ingredients.
US Patent No. 9,861,100 B2 discloses agrochemical concentrate comprising an oil system comprising oil and at least one structurant, said structurant being a polyamide formed from a dicarboxylic acid comprised from a dimer acid compound, and one or more diamine compounds; at least one agrochemical active and/or nutrient dispersed in said oil system.
US Patent No. 9,980,482 B2 discloses plant protection composition comprising Copper oxychloride as plant protection agent and a mixture for enhancing at least one activity of the plant protection agent, wherein said mixture comprises at least one essential oil, at least one type of organic acid, at least one metal ion and at least one detergent.

US Publication No. 2004/0157745 A1 discloses oil-based suspension concentrates containing at least one agrochemical active compound which is solid at room temperature, at least one penetration promoter, at least one vegetable oil, one or more non-ionic surfactants or dispersing aids and/or one or more anionic surfactants or dispersing aids and optionally one or more additives selected from the group consisting of emulsifying agents, antifoam agents, preservatives, antioxidants, colorants and/or inert filling materials.
All prior art references relates to different compositions of the Mancozeb and its combinations. None of the prior art references discloses composition containing dithiocarbamate fungicide and blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent. Further, none of the prior-art documents disclose use of copper oxychloride along with dithiocarbamate fungicide and / or strobilurin fungicide.
The inventors of the present invention provide a composition of fungicidal oil suspension with enhanced flowability comprising dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent. Inventors of the present invention also provide composition of fungicidal oil suspension with enhanced flowability comprising combination of dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier as well as dispersing agent, wherein the composition optionally contain strobilurin fungicide and / or copper based broad spectrum fungicide and other agrochemical auxiliaries. The inventors provide a composition of fungicidal oil suspension with enhanced flowability with good sticking property, penetration and rain fasting properties. The inventors provide novel process for the preparation of fungicidal oil suspension which saves operational cost by reducing time during milling and by maintaining controlled temperature during the process.

OBJECTIVE OF INVENTION
The main objective of the present invention is to provide a composition of fungicidal oil suspension with enhanced flowability comprising dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent.
Another objective of the present invention is to provide a composition of fungicidal oil suspension with enhanced flowability comprising dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier.
Another objective of the present invention is to provide a composition of fungicidal oil suspension with enhanced flowability comprising dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier and other agrochemical auxiliaries.
Another objective of the present invention is to provide a composition of fungicidal oil suspension with enhanced flowability comprising combination of dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, wherein the composition optionally contain strobilurin fungicide and / or copper based broad spectrum fungicide and other agrochemical auxiliaries.
Another objective of the present invention is to provide a composition of fungicidal oil suspension with enhanced flowability comprising Mancozeb, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, dispersing agent, emulsifier and carrier agent as agrochemical auxiliaries.
Another objective of the present invention is to provide a composition of fungicidal oil suspension with enhanced flowability comprising Mancozeb, Azoxystrobin, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, dispersing agent, emulsifier and carrier agent as agrochemical auxiliaries.
Another objective of the present invention is to provide a composition of fungicidal oil suspension with enhanced flowability comprising Mancozeb, Copper oxychloride as copper based broad spectrum fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, dispersing agent, emulsifier and carrier agent as agrochemical auxiliaries.
Another objective of the present invention is to provide a process for the preparation of Mancozeb oil suspension with enhanced flowability comprising the steps of adding, stirring, homogenizing, milling and packaging.

SUMMARY OF INVENTION
Accordingly, the present invention provides a composition of fungicidal oil suspension with enhanced flowability comprising dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent.
One embodiment of the present invention provides a composition of fungicidal oil suspension with enhanced flowability comprising dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier.
One embodiment of the present invention provides a composition of fungicidal oil suspension with enhanced flowability comprising dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier and other agrochemical auxiliaries.
Another embodiment of the present invention provides a composition of fungicidal oil suspension with enhanced flowability comprising combination of dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, wherein the composition optionally contain strobilurin fungicide and / or copper based broad spectrum fungicide and other agrochemical auxiliaries.
Another embodiment of the present invention is to provide a composition of fungicidal oil suspension with enhanced flowability comprising Mancozeb, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, dispersing agent, emulsifier and carrier agent as agrochemical auxiliaries.
Another embodiment of the present invention provides a composition of fungicidal oil suspension with enhanced flowability comprising Mancozeb and other fungicide selected from strobilurin fungicide and copper based broad spectrum fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, dispersing agent, emulsifier and carrier agent as agrochemical auxiliaries.
Another embodiment of the present invention provides a composition of fungicidal oil suspension with enhanced flowability comprising Mancozeb, Azoxystrobin as strobilurin fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, dispersing agent, emulsifier and carrier agent as agrochemical auxiliaries.
Another embodiment of the present invention provides a composition of fungicidal oil suspension with enhanced flowability comprising Mancozeb, Copper oxychloride as copper based broad spectrum fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, dispersing agent, emulsifier and carrier agent as agrochemical auxiliaries.
Another embodiment of the present invention provides a composition of fungicidal oil suspension with enhanced flowability comprising Mancozeb as dithiocarbamate fungicide, Azoxystrobin as strobilurin fungicide, Copper oxychloride as copper based broad spectrum fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, condensation product of naphthalene sulphonic acid as dispersing agent, ethoxylate of alkyl polyethylene glycol ether as emulsifier, Kyros oil as carrier
Yet another embodiment of the present invention provides a composition of fungicidal oil suspension comprising:
(a) dithiocarbamate fungicide in the range of 30% to 70% (w/w),
(b) blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma in the range of 0.5% to 10% (w/w),
(c) blend of vegetable oil base in the range of 1% to 10% (w/w),
(d) condensation product of naphthalene sulphonic acid in the range of 0.1% to 5% (w/w),
(e) ethoxylate of alkyl polyethylene glycol ether in the range of 2% to 15% (w/w), and
(f) combination of Kyros Oil and naphtha(petroleum) heavy aromatic solvent in the range of 10% to 50% (w/w).
Yet another embodiment of the present invention provides a composition of fungicidal oil suspension comprising:
(a) Mancozeb in the range of 40% to 70%(w/w),
(b) blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma in the range of 0.5% to 10% (w/w),
(c) blend of vegetable oil base in the range of 1% to 10% (w/w),
(d) condensation product of naphthalene sulphonic acid in the range of 0.1% to 5% (w/w),
(e) ethoxylate of alkyl polyethylene glycol ether in the range of 2% to 15% (w/w), and
(f) combination of Kyros Oil and naphtha(petroleum) heavy aromatic solvent in the range of 10% to 50% (w/w).
Yet another embodiment of the present invention provides a composition of fungicidal oil suspension comprising:
(a) Mancozeb in the range of 40% to 60% (w/w),
(b) other fungicide selected from strobilurin fungicide and copper based broad spectrum fungicide in the range of 5% to 30% (w/w),
(c) blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma in the range of 1% to 5% (w/w),
(d) blend of vegetable oil base in the range of 1% to 5% (w/w),
(e) condensation product of naphthalene sulphonic acid in the range of 0.5% to 2% (w/w),
(f) ethoxylate of alkyl polyethylene glycol ether in the range of 5% to 15% (w/w), and
(g) Kyros Oil in the range of 20% to 35% (w/w).
Yet another embodiment of the present invention provides a composition of fungicidal oil suspension comprising:
(a) Mancozeb in the range of 40% to 60%(w/w),
(b) Azoxystrobin in the range of 5% to 10% (w/w),
(c) blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma in the range of 1% to 5% (w/w),
(d) blend of vegetable oil base in the range of 1% to 5% (w/w),
(e) condensation product of naphthalene sulphonic acid in the range of 0.5% to 2% (w/w),
(f) ethoxylate of alkyl polyethylene glycol ether in the range of 5% to 15% (w/w), and
(g) Kyros Oil in the range of 20% to 35% (w/w).
Yet another embodiment of the present invention provides a composition of fungicidal oil suspension comprising:
(a) Mancozeb in the range of 40% to 60% (w/w),
(b) Copper oxychloride in the range of 5% to 25% (w/w),
(c) blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma in the range of 1% to 5% (w/w),
(d) blend of vegetable oil base in the range of 1% to 5% (w/w),
(e) condensation product of naphthalene sulphonic acid in the range of 0.5% to 2% (w/w),
(f) ethoxylate of alkyl polyethylene glycol ether in the range of 5% to 15% (w/w), and
(g) Kyros Oil in the range of 20% to 35% (w/w).
Yet another embodiment of the present invention provides a composition of fungicidal oil suspension comprising:
(a) Mancozeb in the range of 40% to 60% (w/w),
(b) Azoxystrobin in the range of 5% to 10% (w/w),
(c) Copper oxychloride in the range of 5% to 25% (w/w),
(d) blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma in the range of 1% to 5% (w/w),
(e) blend of vegetable oil base in the range of 1% to 5% (w/w),
(f) condensation product of naphthalene sulphonic acid in the range of 0.5% to 2% (w/w),
(g) ethoxylate of alkyl polyethylene glycol ether in the range of 5% to 15% (w/w), and
(h) Kyros Oil in the range of 20% to 35% (w/w).
In yet another embodiment, the present invention provides a process for the preparation of fungicidal oil suspension, wherein the process comprising steps of:
(a) charging carrier agent in high sheer disperser followed by stirring and heating upto 45-50°C,
(b) charging emulsifier, suspending agent, rheology modifier and optionally carrier agent under stirring,
(c) charging dispersing agent after 15-20 minutes of interval,
(d) adding specified quantity of dithiocarbamate fungicide in small portions over a period of ~ 2 hours under continuous stirring for homogenization,
(e) milling the obtained mixture using wet milling and transferring the milled material in to a separate vessel and stirring continuously the mixture for further ~ 4 h, and
(f) packaging the obtained oil suspension.
In yet another embodiment, the present invention provides a process for the preparation of fungicidal oil suspension, wherein the process comprising steps of:
(a) charging Kyros oil in high sheer disperser followed by stirring and heating upto 45-50°C,
(b) charging ethoxylate of alkyl polyethylene glycol ether, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma, blend of vegetable oil base and naphtha(petroleum) heavy aromatic solvent under stirring,
(c) charging condensation product of naphthalene sulphonic acid after 15-20 minutes of interval,
(d) adding Mancozeb in small portions over a period of ~ 2 hours under continuous stirring for homogenization,
(e) milling the obtained mixture using wet milling and transferring the milled material into a separate reactor and stirring continuously the mixture for further ~ 4 h, and
(f) packaging the obtained Mancozeb oil suspension.
In yet another embodiment, the present invention provides a process for the preparation of fungicidal oil suspension, wherein the process comprising steps of:
(a) charging Kyros oil in high sheer disperser followed by stirring and heating up to 45-50°C,
(b) charging ethoxylate of alkyl polyethylene glycol ether, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma and blend of vegetable oil base under stirring,
(c) charging condensation product of naphthalene sulphonic acid after 15-20 minutes of interval,
(d) adding Azoxystrobin in small portions over a period of 30 minutes under continuous stirring for homogenization,
(e) adding Mancozeb in small portions over a period of ~ 2 hours under continuous stirring for homogenization,
(f) milling the obtained mixture using wet milling process and transferring the milled material into a separate reactor and stirring continuously the mixture for further ~ 4 h, and
(g) packaging the obtained oil suspension.
In yet another embodiment, the present invention provides a process for the preparation of fungicidal oil suspension, wherein the process comprising steps of:
(a) charging Kyros oil in high sheer disperser followed by stirring and heating up to 45-50°C,
(b) adding ethoxylate of alkyl polyethylene glycol ether and blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma into oil and adding blend of vegetable oil base after 15 minutes,
(c) adding condensation product of naphthalene sulphonic acid,
(d) adding Mancozeb in small portions over a period of ~ 2 hours under continuous stirring for homogenization,
(a) adding Copper oxychloride in small lots over a period of ~ 30 minutes under continuous stirring for homogenization,
(e) milling the obtained mixture using wet milling process and transferring the milled material into a separate vessel and stirring continuously the mixture for further ~ 4 h, and
(f) packaging the obtained oil suspension.

DETAILED DESCRIPTION OF THE INVENTION
The term "comprising", which is synonymous with "including", "containing", or "characterized by" here is defined as being inclusive or open-ended, and does not exclude additional, unrecited elements or method steps, unless the context clearly requires otherwise.
The present invention provides a composition of fungicidal oil suspension with enhanced flowability comprising dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier and other agrochemical auxiliaries.
The present invention provides a composition of fungicidal oil suspension with enhanced flowability comprising combination of dithiocarbamate fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, wherein the composition optionally contain strobilurin fungicide and / or copper based broad spectrum fungicide and other agrochemical auxiliaries.
The present invention provides a composition of fungicidal oil suspension with enhanced flowability comprising Mancozeb, Azoxystrobin, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, dispersing agent, emulsifier and carrier agent as agrochemical auxiliaries.
The present invention provides a composition of fungicidal oil suspension with enhanced flowability comprising Mancozeb, Copper oxychloride as copper based broad spectrum fungicide, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent, blend of vegetable oil base as rheology modifier, dispersing agent, emulsifier and carrier agent as agrochemical auxiliaries.
Dithiocarbamate fungicide used in the composition of the present invention includes, but not limited to Ferbam, Maneb, Mancozeb, Metiram, Thiram and Ziram. Preferably used dithiocarbamate fungicide is Mancozeb.
The concentration of Mancozeb used in the present composition of fungicidal oil suspension is from 30% to 70% (w/w) (w/w). Preferably used concentration of Mancozeb is 40% to 60% (w/w) of the total weight of the composition.
Strobilurin fungicide used in the composition of the present invention includes, but not limited to pyraclostrobin, azoxystrobin, dimoxystrobin, enestroburin, fluoxastrobin, kresoxim-methyl, metominostrobin, orysastrobin, picoxystrobin, pyribencarb, trifloxystrobin, pyrametostrobin, pyraoxystrobin, coumoxystrobin, coumethoxystrobin, triclopyricarb (chlorodincarb), fenaminstrobin (diclofenoxystrobin), fenoxystrobin, 2-(2-(6-(3-chloro-2-methyl-phenoxy)-5-fluoro-pyrimidin-4-yloxy)-phenyl)-2-methoxyimino-N-methyl-acetamide, 3-methoxy-2-(2-(N-(4-methoxy-phenyl)-cyclopropane-carboximidoylsulfanylmethyl)-phenyl)-acrylic acid methyl ester, methyl (2-chloro-5-[1-(3-methylbenzyloxyimino)ethyl]benzyl)carbamate and 2-(2-(3-(2,6-dichlorophenyl)-1-methyl-allylideneaminooxymethyl)-phenyl)-2-methoxyimino-N methyl-acetamide. Preferably used strobilurin fungicide is Azoxystrobin.
The concentration of strobilurin fungicide used in the present composition of fungicidal oil suspension is from 2% to 15% (w/w). Preferably used concentration of Azoxystrobin is 5% to 10% (w/w) of the total weight of the composition.
Copper based broad spectrum fungicide used in the composition of the present invention includes, but not limited inorganic copper and organic copper bactericide, as: copper oxychloride, copper sulphate, basic copper sulfate, Kocide SD, Cupravit, cuprous oxide, copper acetate, network ammonia copper, tiger glue adipic acid copper, copper rosinate etc. preferably used copper based broad spectrum fungicide is copper oxychloride.
The concentration of copper based broad spectrum fungicide used in the composition of fungicidal oil suspension is from 5% to 35% (w/w). Preferably used concentration of Copper oxychloride is 10% to 25% (w/w) of the total weight of the composition.

Suspending agent used in the composition of the present invention includes blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma (STEPGROW RM 1001).
The concentration of suspending agent used in the fungicidal oil suspension is from 0.5% to 10% (w/w). Preferably used concentration of suspending agent is 1% to 5% (w/w) of the total weight of the composition.
Rheology modifier used in the composition of the present invention includes vegetable oil derivatives such as blend of vegetable oil base (SURFOM ESP 8105).
The concentration of rheology modifier used in the fungicidal oil suspension is from 1% to 10% (w/w). Preferably used concentration of rheology modifier is 1% to 5% (w/w) of the total weight of the composition.
Dispersing agent used in the composition of the present invention includes but not limited to ethylene oxide-propylene oxide block polymers, alkylphenol polyglycol ethers, tristryrylphenol polyglycol ethers, phosphated or sulphated derivatives of these, salt of phenol sulphonic acid condensation product (Tamol FBPP), polyvinylpyrrolidone, Elvanol 51-05 etc. Preferably used dispersing agent is salt of phenol sulphonic acid condensation product (Tamol FBPP).
The concentration of dispersing agent used in the fungicidal oil suspension is from 0.1% to 5% (w/w). Preferably used concentration of dispersing agent is 0.5% to 2% (w/w) of the total weight of the composition.
Emulsifier used in the composition of the present invention includes but not limited to nonionic, anionic, cationic and amphoteric emulsifiers, or a blend of two or more emulsifiers. Examples of nonionic emulsifiers useful in preparing the emulsifiable concentrates include, ethoxylate of alkyl polyethylene glycol ether (Lutensol TO 5), the polyalkylene glycol ethers and condensation products of alkyl and aryl phenols, aliphatic alcohols, aliphatic amines or fatty acids with ethylene oxide, propylene oxides such as the ethoxylated alkyl phenols and carboxylic esters solubilized with the polyol or polyoxyalkylene. Cationic emulsifiers include quaternary ammonium compounds and fatty amine salts. Anionic emulsifiers include the oil-soluble salts (e.g., calcium) of alkylaryl sulfonic acids, oil-soluble salts or sulfated polyglycol ethers, appropriate salts of phosphated polyglycol ether etc. Preferably used emulsifier is ethoxylate of alkyl polyethylene glycol ether (Lutensol TO 5).
The concentration of emulsifier used in the fungicidal oil suspension is from 2% to 15% (w/w). Preferably used concentration of emulsifier is 5% to 15% (w/w) of the total weight of the composition.
Carrier agents used in the composition of the present invention includes, but not limited to Kyros Oil , N-methyl pyrrolidone, N-octyl pyrrolidone, cyclohexyl-1-pyrrolidone; or a mixture of paraffinic, isoparaffinic, cycloparaffinic and aromatic hydrocarbons, such as naphtha(petroleum) heavy aromatic solvent (SOLVESSOTM 200) etc. Preferably used carrier agents are Kyros Oil and naphtha(petroleum) heavy aromatic solvent (Solvesso 200).
The concentration of carrier agent used in the fungicidal oil suspension is from 10% to 50% (w/w). Preferably used concentration of carrier agent is 20% to 35% (w/w) of the total weight of the composition.
The present invention is to provide process for the preparation of composition of fungicidal oil suspension with enhanced flowability comprising the steps of adding, stirring, homogenizing, milling and packaging.
The following examples describes the nature of the invention and are given only for the purpose of illustrating the present invention in more detail and are not limitative and relate to solutions, which have been particularly effective on bench scale.

Example 1
S.No Ingredients Quantity (% w/w)
1. Mancozeb 55.88
2. Blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma (STEPGROW RM 1001) 2.0
3. blend of vegetable oil base (SURFOM ESP 8105) 3.2
4. condensation product of naphthalene sulphonic acid (Tamol FBPP) 1.0
5. ethoxylate of alkyl polyethylene glycol ether (Lutensol TO 5) 9.0
6. Paraffinic mineral oil (Kyros Oil) 26.92
7. naphtha(petroleum) heavy aromatic solvent (Solvesso 200) 2.0
Total 100

Manufacturing process:
Specified quantity of paraffinic mineral oil (Kyros Oil) was charged in the moisture free cleaned high sheer disperser, stirred and heated to 40-45°C. ethoxylate of alkyl polyethylene glycol ether (Lutensol TO 5), blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma (STEPGROW RM 1001), blend of vegetable oil base (SURFOM ESP 8105) and naphtha(petroleum) heavy aromatic solvent (Solvesso 200) were charged under stirring. condensation product of naphthalene sulphonic acid (Tamol FBPP) was added after 15-20 min. Mancozeb was added at a temperature <50°C in small portions to the obtained homogenized solution over a period of ~2 h under continuous stirring. Obtained mixture was milled and transferred into separate reactor and stirred continuously for further ~4 h to obtain Mancozeb oil suspension with a particle size range of 1-10 microns. Obtained Mancozeb oil suspension was packaged.

Stability data of Mancozeb Oil suspension of Example 1:
S.No Characteristic Requirements 0 days-room
temperature 7-day AHS 14-day AHS
1. Appearance Colored
suspension, free from
Sedimentation Yellow
Colored suspension,
free from
Sedimentati
on Yellow Colored
suspension, free from Sedimentation. Slight sediment at bottom Yellow Colored
suspension, free from Sedimentation, slight sediment at bottom
2. Mancozeb Content by Mass Yellow 600 gm/L +/- 5% 604 598 594
3. PH of 1.0 % Aq. solution 5.0 – 9.0 7.21 7.18 7.12
4. Persistent
foaming 60 ml Max. After 1.0 minute 18 ml 18 ml 16 ml
5. Suspensibilty 70.0 % Min. by mass 98 97.5 97.2
6. Wet Sieve test, % retention on 75 test sieves 2.0 % Max. by, mass 99.85 99.80 99.72

Example 2
S.No Ingredients Quantity (% w/w)
1. Mancozeb Technical @85 % (b) 41% 48.23
2. Azoxystrobin Technical @98% (b) 7.2.0% 7.34
3. Blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma (STEPGROW RM 1001) 2.0
4. blend of vegetable oil base (SURFOM ESP 8105) 2.8
5. condensation product of naphthalene sulphonic acid (Tamol FBPP) 1.0
6. ethoxylate of alkyl polyethylene glycol ether (Lutensol TO 5) 9.0
7. Paraffinic mineral oil (Kyros Oil) 29.63
Total 100

Manufacturing process:
Specified quantity of paraffinic mineral oil (Kyros Oil) was added in the moisture free cleaned high sheer disperser, stirred and heated to 40-45°C. ethoxylate of alkyl polyethylene glycol ether (Lutensol TO 5), blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma (STEPGROW RM 1001 blend of vegetable oil base (SURFOM ESP 8105) were added under stirring. condensation product of naphthalene sulphonic acid (Tamol FBPP). Azoxystrobin was added in small portions to the obtained homogenized solution over a period of 30 minutes under continuous stirring. Mancozeb was added at a temperature <50°C in small portions to the obtained Azoxystrobin homogenized solution over a period of ~2 h under continuous stirring. Obtained mixture was milled and transferred into separate reactor and stirred continuously for further ~4 h to obtain oil suspension composition of Mancozeb and Azoxystrobin with a particle size range of 1-10 microns. Obtained oil suspension was packaged.

Stability data of Mancozeb and Azoxystrobin Oil suspension as per Example 2:
S. No. Characteristic Initial After 14 days at 540C
1. Appearance Yellow colored liquid, free from sedimentation Yellow colored liquid, free from sedimentation
2. Active content % of Mancozeb (w/w) 40.52 39.58
3. Active content % of Azoxystrobin (w/w) 7.16 7.15
4. Specific gravity 1.27 1.27
5. Suspensibility, % by mass 90.84 88.2
6. Wet sieve (% m/m) 75u 99.76 99.1

Example 3
S.No Ingredients Quantity (% w/w)
1. Mancozeb Technical @85 % (b) 30 % 35.29
2. Copper oxychloride Technical @95% (b) 20% 21.05
3. Blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma (STEPGROW RM 1001) 3.0
4. blend of vegetable oil base (SURFOM ESP 8105) 2.8
5. condensation product of naphthalene sulphonic acid (Tamol FBPP) 1.0
6. ethoxylate of alkyl polyethylene glycol ether (Lutensol TO 5) 9.0
7. Paraffinic mineral oil (Kyros Oil) 27.86
Total 100

Manufacturing process:
Specified quantity of paraffinic mineral oil (Kyros Oil) was added in the moisture free cleaned high sheer disperser, stirred and heated to 40-45°C. Ethoxylate of alkyl polyethylene glycol ether (Lutensol TO 5), blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma (STEPGROW RM 1001) were added to Kyros Oil and blend of vegetable oil base (SURFOM ESP 8105) was added after 15 minutes. condensation product of naphthalene sulphonic acid (Tamol FBPP) and Mancozeb were added to the homogenized mixture in small lots over a period of ~2 hours under continuous stirring. Copper oxychloride was added to the obtained homogenized oil solution in small lots over a period of ~ 30 minutes under continuous stirring. Obtained mixture was milled till the desired Particle Size Distribution D90 ~20 micron is achieved. Milled materials were transferred into a separate vessel and continue stirring period for ~4 hrs. Obtained solution was cooled to room temperature (30-35°C). Obtained oil suspension was packaged in COEX bottle.

Stability data of Mancozeb and Copper oxychloride Oil suspension as per Example 3:
S.No Test Specification RT Sample 14 Day AHS@54° C
1. Appearance The material shall in the form of light pale green Colour liquid free from sedimentation The material shall in the form of light pale green Colour liquid free from sedimentation The material shall in the form of light pale green Colour liquid free from sedimentation
2. pH 6 - 8 7.01 6.97
3. Mancozeb 28.5 - 31.5 31.0 30.96
4. Copper oxychloride 19 - 21 20.8 20.72
5. Suspensibility Mancozeb Min 70 88.18 86.57
6. Suspensibility opper oxychloride Min 70 87.67% 87.59
7. Persistent foam Max 60 ml after 1min 15ml 4ml
8. Wet sieve test Max 2% retained on 75µ 99.76% 99.10 %

FIELD EFFICACY STUDIES

Field Efficacy Studies of Mancozeb + Azoxystrobin 47% OS

Trial 1: Bio-efficacy against Tomato Late blight
The late blight is caused by the Oomycete group of fungal pathogen Phytophthora infestans. This is potentially devasting disease can infect tomato foliage and fruit at any stage of crop development.
The field trial was conducted to evaluate the efficacy of innovative mixtures of Mancozeb and Azoxystrobin of present invention against phytophthora infestans fungus in tomato crop. Trial was conducted with randomized block design with net plot size of 5m x 6m. Tomato crop was raised with all standard agronomic practices. Spraying was done with manual operated backpack knapsack sprayer with 500 L of water spray volume per hectare at 45 days after planting.
The visual observations were recorded for % disease control from ten plants per plot. The observations were recorded at before spraying, 7 DAA (Days after application) and 14 DAA (Days after application).

Table 1: Late blight disease control in Tomato
Compositions Dose (gram active per hectare) Percent disease control – Phytophthora infestans.
07 DAA 14 DAA
Mancozeb + Azoxystrobin 47% OS 705 90 85
Mancozeb 60% OS 600 50 45
Azoxystrobin 23% SC 105 70 60
WP - Wettable Powder, OS – Oil Suspension, SC – Suspension concentration and DAA - Days after application.

The trial results show excellent efficacy of Mancozeb + Azoxystrobin 47% OS combinations against late blight disease of Tomato. The solo application of two active ingredients tested here were not able to provide satisfactory control of late blight disease. The combination of Mancozeb + Azoxystrobin 47% OS found very promising against Tomato late blight in terms of efficacy as well as residual control. The results in table 1 clearly demonstrates synergy between Mancozeb + Azoxystrobin 47% OS in controlling late blight disease in Tomato.

Trial 2: Bio-efficacy against Tomato Early blight
The early blight is caused by the fungal pathogen Alternaria solani. This is potentially devasting disease. Warm, humid (24-29°C/ 75-84°F) environmental conditions are conducive to infection. Its major threat to many vegetable and fruit crops and can also affect the crop stand and yield. The first symptoms of early blight appear as small, circular, or irregular, dark brown to black spots on the older (lower) leaves.
The field trial was conducted to evaluate the efficacy of innovative mixtures of Mancozeb and Azoxystrobin against Alternaria solani fungus in Tomato crop. Trial was conducted with randomized block design with net plot size of 5m x 6m. Tomato crop was raised with all standard agronomic practices. Spraying was done with manual operated backpack knapsack sprayer with 500 L of water spray volume per hectare at 45 days after planting.
The visual observations were recorded for % disease control from ten plants per plot. The observations were recorded at before spraying, 7 DAA (Days after application) and 14 DAA (Days after application).

Table 2: Early blight disease control in Tomato:
Compositions Dose (gram active per hectare) Percent disease control – Alternaria solani.
07 DAA 14 DAA
Mancozeb + Azoxystrobin 47% OS 705 85 80
Mancozeb 60% OS 600 65 55
Azoxystrobin 23% SC 105 50 40
WP - Wettable Powder, OS – Oil Suspension, SC – Suspension concentration and DAA - Days after application.

The trial results show excellent efficacy of Mancozeb + Azoxystrobin 47% OS combinations against early blight disease of Tomato. The solo application of two active ingredients tested here were not able to provide satisfactory control of early blight disease. The combination of Mancozeb + Azoxystrobin 47% OS found very promising against Tomato early blight in terms of efficacy as well as residual control. The results in table 2 clearly demonstrates synergy between Mancozeb + Azoxystrobin 47% OS in controlling early blight disease in Tomato.

Field Bio-efficacy trials of Copper Oxychloride + Mancozeb 50% OS:

Trial 1: Bio-efficacy against Tomato Late blight
The late blight is caused by the Oomycete group of fungal pathogen Phytophthora infestans. This is potentially devasting disease can infect tomato foliage and fruit at any stage of crop development. The first symptoms of late blight in the field are small, light to dark green, circular to irregular-shaped water-soaked spots.
The field trial was conducted to evaluate the efficacy of innovative mixtures of Mancozeb and Copper Oxychloride against phytophthora infestans fungus in tomato crop. Trial was conducted with randomized block design with net plot size of 5m x 6m. Tomato crop was raised with all standard agronomic practices. Spraying was done with manual operated backpack knapsack sprayer with 500 L of water spray volume per hectare at 45 days after planting.

The visual observations were recorded for % disease control from ten plants per plot. The observations were recorded at before spraying, 7 DAA (Days after application) and 14 DAA (Days after application).

Table 3: Late blight disease control in Tomato:
Compositions Dose (gram active per hectare) Percent disease control – Phytophthora infestans.
07 DAA 14 DAA
Copper Oxychloride + Mancozeb 50% OS 1600 90 85
Mancozeb 60% OS 740 55 50
Copper Oxychloride 50% WP 860 70 60
OD – Oil Suspension and DAA - Days after application.

The trial results show excellent efficacy of Copper Oxychloride + Mancozeb 50% OD combinations against late blight disease of Tomato. The solo application of two active ingredients tested here were not able to provide satisfactory control of late blight disease. The combination of Copper Oxychloride + Mancozeb 50% OD found very promising against Tomato late blight in terms of efficacy as well as residual control. The results in table 3 clearly demonstrates synergy between Copper Oxychloride + Mancozeb 50% OD in controlling late blight disease in Tomato.

Trial 2: Bio-efficacy against Tomato Early blight –
The early blight is caused by the fungal pathogen Alternaria solani. This is potentially devasting disease. Warm, humid (24-29°C/ 75-84°F) environmental conditions are conducive to infection. Its major threat to many vegetable and fruit crops and can also affect the crop stand and yield. The first symptoms of early blight appear as small, circular, or irregular, dark brown to black spots on the older (lower) leaves.
The field trial was conducted to evaluate the efficacy of innovative mixtures of Mancozeb and Copper Oxychloride against Alternaria solani fungus in Tomato crop. Trial was conducted with randomized block design with net plot size of 5m x 6m. Tomato crop was raised with all standard agronomic practices. Spraying was done with manual operated backpack knapsack sprayer with 500 L of water spray volume per hectare at 45 days after planting.
The visual observations were recorded for % disease control from ten plants per plot. The observations were recorded at before spraying, 7 DAA (Days after application) and 14 DAA (Days after application).

Table 4: Early blight disease control in Tomato:
Compositions Dose (gram active per hectare) Percent disease control – Alternaria solani.
07 DAA 14 DAA
Copper Oxychloride + Mancozeb 50% OS 1600 85 80
Mancozeb 60% OS 740 65 60
Copper Oxychloride 50% WP 860 50 45
OD – Oil Suspension and DAA - Days after application.

The trial results show excellent efficacy of Copper Oxychloride + Mancozeb 50% OS combinations against early blight disease of Tomato. The solo application of two active ingredients tested here which were not able to provide satisfactory control of early blight disease. The combination of Copper Oxychloride + Mancozeb 50% OS found very promising against Tomato early blight in terms of efficacy as well as residual control. The results in table 4 clearly demonstrates synergy between Copper Oxychloride + Mancozeb 50% OS in controlling early blight disease in Tomato.

,CLAIMS:WE CLAIM:
1. A composition of fungicidal oil suspension comprising:
(a) Mancozeb,
(b) strobilurin fungicide or copper based broad spectrum fungicide as second fungicide,
(c) blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma as suspending agent,
(d) blend of vegetable oil base as rheology modifier,
(e) dispersing agent,
(f) emulsifier and
(g) carrier agent.
2. The composition as claimed in claim 1, wherein strobilurin fungicide is Azoxystrobin and copper based broad spectrum fungicide is copper oxychloride.
3. The composition as claimed in claim 1, wherein the blend of vegetable oil base is SURFOM ESP 8105.
4. The composition as claimed in claim 1, wherein dispersing agent is ethylene oxide-propylene oxide block polymers, alkylphenol polyglycol ethers, tristryrylphenol polyglycol ethers, phosphated or sulphated derivatives of these, salt of phenol sulphonic acid condensation product, polyvinylpyrrolidone, wherein dispersing agent present in the range of 0.1% to 5% w/w of total weight of the composition.
5. The composition as claimed in claim 1, wherein emulsifier is nonionic, anionic, cationic and amphoteric emulsifiers, or a blend of two or more emulsifiers, ethoxylate of alkyl polyethylene glycol ether, the polyalkylene glycol ethers and condensation products of alkyl and aryl phenols, aliphatic alcohols, aliphatic amines or fatty acids with ethylene oxide, propylene oxides, ethoxylated alkyl phenols and carboxylic esters solubilized with the polyol or polyoxyalkylene, quaternary ammonium compounds and fatty amine salts, oil-soluble salts (e.g., calcium) of alkylaryl sulfonic acids, oil-soluble salts or sulfated polyglycol ethers, appropriate salts of phosphated polyglycol ether and combinations thereof, wherein emulsifier present in the range of 2% to 15% w/w of total weight of the composition.
6. The composition as claimed in claim 1, wherein carrier agent is Kyros Oil , N-methyl pyrrolidone, N-octyl pyrrolidone, cyclohexyl-1-pyrrolidone, mixture of paraffinic, isoparaffinic, cycloparaffinic and aromatic hydrocarbons, naphtha(petroleum) heavy aromatic solvent and combinations thereof, wherein carrier agent present in the range of 10% to 50% w/w of total weight of the composition.
7. The composition as claimed in claims 1-6, wherein composition comprising:
(a) Mancozeb in the range of 40% to 60%(w/w),
(b) Azoxystrobin in the range of 5% to 10% (w/w),
(c) blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma in the range of 1% to 5% (w/w),
(d) blend of vegetable oil base in the range of 1% to 5% (w/w),
(e) condensation product of naphthalene sulphonic acid in the range of 0.5% to 2% (w/w),
(f) ethoxylate of alkyl polyethylene glycol ether in the range of 5% to 15% (w/w), and
(g) Kyros Oil in the range of 20% to 35% (w/w).
8. The composition as claimed in claims 1-6, wherein composition comprising:
(a) Mancozeb in the range of 40% to 60% (w/w),
(b) Copper oxychloride in the range of 5% to 25% (w/w),
(c) blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma in the range of 1% to 5% (w/w),
(d) blend of vegetable oil base in the range of 1% to 5% (w/w),
(e) condensation product of naphthalene sulphonic acid in the range of 0.5% to 2% (w/w),
(f) ethoxylate of alkyl polyethylene glycol ether in the range of 5% to 15% (w/w), and
(g) Kyros Oil in the range of 20% to 35% (w/w).
9. The process for the preparation of composition of fungicidal oil suspension as claimed in claim 7, wherein the process comprising steps of:
(a) charging Kyros oil in high sheer disperser followed by stirring and heating up to 45-50°C,
(b) charging ethoxylate of alkyl polyethylene glycol ether, blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma and blend of vegetable oil base under stirring,
(c) charging condensation product of naphthalene sulphonic acid after 15-20 minutes of interval,
(d) adding Azoxystrobin in small portions over a period of 30 minutes under continuous stirring for homogenization,
(e) adding Mancozeb in small portions over a period of ~ 2 hours under continuous stirring for homogenization,
(f) milling the obtained mixture using wet milling process and transferring the milled material into a separate reactor and stirring continuously the mixture for further ~ 4 h, and
(g) packaging the obtained oil suspension.
10. The process for the preparation of composition of fungicidal oil suspension as claimed in claim 8, wherein the process comprising steps of:
(a) charging Kyros oil in high sheer disperser followed by stirring and heating up to 45-50°C,
(b) adding ethoxylate of alkyl polyethylene glycol ether and blend of naphthalene benzyl alcohol solvent naptha and petroleum heavy aroma into oil and adding blend of vegetable oil base after 15 minutes,
(c) adding condensation product of naphthalene sulphonic acid,
(d) adding Mancozeb in small portions over a period of ~ 2 hours under continuous stirring for homogenization,
(b) adding Copper oxychloride in small lots over a period of ~ 30 minutes under continuous stirring for homogenization,
(e) milling the obtained mixture using wet milling process and transferring the milled material into a separate vessel and stirring continuously the mixture for further ~ 4 h, and
(f) packaging the obtained oil suspension.

Dated this twelfth (12th) day of February 2022

_________________
Dr. S. Padmaja
Agent for the Applicant
IN/PA/883