FR2624518A1 - ADJUVANT LIQUID FOR SPRAYING, WASHING, DEGREASING, STAIN REMOVAL OR PAINT THINNING - Google Patents

Abstract

Liquid intended to be used as a spray adjuvant for phytosanitary products, for degreasing, washing, or stain removal, characterized in that it consists of a mixture of: a) a water-soluble wetting agent, in a proportion of 1.4% to 3.5% by weight; b) a combination of at least two solvents, soluble in water, this combination comprising on the one hand a solvent with a ketone function and on the other hand a solvent with an alcohol or glycol function in a proportion of between 1 to 1 and 1 for 2; said combination being present in the final product in the proportion of 50% to 80%; c) a water soluble solvent with a strongly basic reaction in a proportion of 18% to 35%.

Description

ADJUVANT LIQUID FOR SPRAYING, WASHING,

  DEGREASING, STAIN REMOVAL OR PAINT DILUTION.

  The present invention relates to a liquid intended to serve as an adjuvant for spraying phytosanitary products as well as for washing,

degreasing, or stain removal.

  It is known to use adjuvants to improve the action of phytosanitary products, which makes it possible to lower the doses of raw materials used and therefore to lower the cost price of the treatments. In particular, it is known to add: - a wetting agent (or detergent) - an oil emulsifiable in water

- a solvent such as isophorone.

  These adjuvants, although making it possible to reduce the doses of active products, present numerous

disadvantages.

  The oils and solvents used are, except isophorone, insoluble in water: they must therefore be emulsified. The emulsions can dissociate and therefore lose their effectiveness: in addition, these oils and solvents in emulsion can clog the sprayers, cause the formation of deposits, and cause clogging of the Jets in the presence of certain substances, such as for example copper salts. In addition, the sparingly soluble isophorone attacks certain pumping points and organs; Added to this is the fact that isophorone causes headaches and insomnia. In addition, it is impossible to achieve a stable mixture of the three products, which can be preserved without dissociating; so that the users are obliged to dose and pour the components successively in a determined order. This constraint causes errors, which often means that the user only uses one product, of which

the effect is then very limited.

  The present invention relates to a mixture of components which are all soluble in water, so that there are no more problems of emulsification and subsequent dissociation of this emulsion. This product comprises a wetting agent with a combination of solvents comprising a plurality of chemical functions: strongly basic reaction and alcohol, glycol, ketone, ester, amine functions in order to dissolve not only the active ingredients as well as possible, but also the

cuticle of the plant.

  The liquid according to the invention is characterized in that it consists of a mixture of: a) a water-soluble wetting agent, in a proportion of 1.4% to 3.5% by weight, b) a combination at least two solvents, soluble in water, this combination comprising on the one hand a ketone functional solvent and on the other hand an alcohol or glycol functional solvent in a proportion of between 1 to 1 and 1 for 2; said association being present in the final product in the

proportion of 50% to 80%.

  c) a water-soluble solvent, & strongly basic reaction in proportion from 18% to 35%, this in order to obtain an alkaline reaction favorable to the action of the majority of phytosanitary products; and we can even add some

soda diluted in water.

  The association of solvents must therefore comprise at least three solvents necessarily comprising the amine, alcohol and celone functions, but it may comprise a greater number, include the function

  ester, and several alcohol or polyalcohol functions.

  The solvent with ketone function must be present in the

  proportion of 1 to 1 at most and 1 to 2 at least.

  Thus, for example when the solvent association comprises 3 solvents, the following proportion will be obtained: solvents with ketone function 20% to 40% solvents with alcohol function 40% to 80% solvents & ester function 18% to 35%, the same

  solvent can have several functions.

  Preferably: - the wetting agent is an alkylpolyglycol ester, - the solvent with a basic reaction is Triethanolamine, - the solvent & ketone function is methyl ethyl ketone, - the solvent & alcohol-only function is isopropyl alcohol, - the solvent & ester function is monopropylene glycol monomethyl ether - the solvent with amine function is triethanolamine. When adding soda it must firstly dilute it in water and secondly combine it

to an emulsifier.

  Regarding dilution, the soda must be dissolved in 15 times its weight of water. He is without

  interest to put more water.

  As regards the emulsifier, it must be added in the proportion of 60% to 70% by weight of the

amount of dissolved sodium hydroxide.

  Soda must be added to the liquid in a

  proportion between 0.4% and 1%.

  The emulsifier can be, for example,

glycerol monoleate.

  The two formulations indicated were produced in the following manner (proportion in% by weight): First formulation without soda: Poured successively with stirring by weight:, 2 Monopropylene glycol monomethyl ether 24.1 Methyl ethyl ketone 2.9 Ester of alkylarylpolyglycol, 5 Triethanolamine 17.3 Isopropyl alcohol

Density at 20'C = 0.915.

  This liquid poured into the water at a rate of 1 percent gives a pH of about 9.5, Triethanolamine having a basic reaction. Neutralization requires approximately 30 grams of sulfuric acid for one liter of liquid diluted in one hundred liters of water. A first engine degreasing test was carried out. The product is applied with a brush, brushing is then carried out, and then rinsing with water. The liquid having dissolved the fats and oils,

  water emulsifies and eliminates them.

  A second trial for stain removal of tissue based

  wool, cotton or acrylic fibers was made.

  A cloth soaked in product has been passed several times over each fabric. Then another rag soaked in water was passed several times to the location of the spots. This completed the stain removal because the stain remover is soluble in water, and the formation of a halo around the location of the spots

has been avoided.

Second formulation with soda.

  It is poured successively with stirring: by weight 0.45 soda dissolved in 6.75 water at around 40 ° C., 3.00 alkylarylpolyglycol ester mixed with 0.3 'warm glycerol monoleate in order to become liquid. 28.30 Triethanolamine. The initially cloudy liquid becomes clear and transparent from

About 19% of triethanolamine.

29.15 methyl ethyl ketone.

32.00 isopropyl alcohol.

  There is a slow reaction between the soda and the monoleate causing a thickening of the liquid. A concentrated solution of sodium hydroxide with added monoleate can cause a very rapid formation of pateaux or even solid soap. Hence the need to dilute these two constituents in water and

  possibly another constituent of the liquid.

  Clear liquid, slightly tinted yellow,

  transparent, soluble in water in all proportions.

  Frost resistant Up to minus 17 C and above; but below minus 10 ° C approximately, an oily deposit occurs which disappears during heating. Density at

'C = 0.895.

  This liquid has been tested at the rate of one liter hectare for 125 liters of water. It allowed an increase in efficiency from + 50% to + 200% verified during the cultivation tests. The color Yellow became orange during conservation without altering its properties. The products tested were the following herbicides: Diuron, Linuron, Diclofop- Methyl, Fluroxypyr, Fluazifop-P-butyl, Haloxyfop-Ethoxyethyl, Oxadiazon, Carbetamide, Methabenzthiazuron, Paraquat

and Glyphosate.

  It had been stored without any frost protection for several months before use, and

  has suffered temperatures down to minus 18'C.

  The first formulation and the second formulation were compared, the first at 0.8 liters for 125 liters of water / hectare and the second-with soda- at 1 liter for 125 liters of water

  also with comparable efficiency increase.

  The farmer uses one liquid instead of three. This liquid-soluble liquid in the sprayer removes fouling of the device and attacks on the seals and parts of the pump. Its smell is not unpleasant. It does not cause a precipitate, nor a deposit with plugging of the Jets in the presence of certain

  substances like copper salts.

  The practical applications of the invention are: - For all formulations; use in water of the sprayer to improve the effectiveness of phytosanitary treatments and prevent the formation of precipitates or deposits and fouling of the sprayer and clogging of the jets. The amount of water should not

  exceed 250 liters of water per hectare.

  Cleaning the sprayers in solution & about 4% in water, followed by rinsing with pure water. Degreasing and cleaning of metal parts and engines, used for monitoring, as well

rinse & water.

  1 e- for soda-free formulations, stain removal

clothes.

Claims (9)

  1. Liquid intended to serve as a spraying aid for phytosanitary products, for degreasing, washing, or stain removal, characterized in that it consists of a mixture of: a) a water-soluble wetting agent, proportion of 1.4% to 3.5% by weight, b) a combination of at least two water-soluble solvents, this association comprising on the one hand a solvent with ketone function and on the other hand a solvent with alcohol or glycol function in a proportion of between I for 1 and i for 2; said association being present in the final product in the proportion of 50% to 80% c) a water-soluble solvent, with a strongly basic reaction in proportion of 18% & 35%, 2. Liquid according to claim i in which the combination of non-basic solvents can comprise three solvents: one with ketone function, one with alcohol function and one with ester function in the following proportions: - solvent with ketone function 20% to 40% - solvent with alcohol function 40% to 80% - solvent with ester function 20% to 30%, the same   solvent can have several functions.   3. Liquid according to claims 1 or 2 in   which wetting agent is alkylarylpolyglycol ester.   4. Liquid according to claims i to 3 in   which the basic reaction solvent is Triethanolamine.   5. Liquid according to claims 1 to 4 in   which the solvent & ketone function is methylethyl ketone.   6. Liquid according to claims i to 5 in   which the alcohol-functional solvent is isopropyl alcohol. 2624518 '   7. Liquid according to claims 1 to 6 in   which the solvent with glycol and ester functions is the   monopropylene glycol monomethyl ether.   8. Liquid according to any one of   claims 1 to 7 wherein the mixture comprises   addition: 0.4 to 1% of sodium hydroxide dissolved in at least 15 times its weight of water, and an emulsifier in a proportion of 60% to   % by weight of the amount of dissolved sodium hydroxide.   9. The liquid of claim 8 wherein   the emulsifier is glycerol monoleate.