Patent GB-761857-A (GB)
Title: Compositions for the treatment of growing plants
IPC: C07D493/08
Filed: 1953-03-25
Abstract: Plant response agents comprise at least one compound which when in the presence of water yields anions having the configuration <FORM:0761857/I/1> in which Y represents an unsatisfied valence or hydrogen and R represents vinylene or ethylene; and, as an intensifier, at least one saturated, open-chain, carbon to carbon linked, mono-, di-, or tricarboxylic acid having 1 or 2 hydroxy groups and from 2 to 6 carbon atoms, or at least one salt of any of these acids with ammonia, an alkyl amine, an alkanolamine or a mixed alkyl-alkanol amine.  Specified acids are glycollic, lactic, hydracrylic, hydroxybutric, hydroxyvaleric, epsilon hydroxy-caproic; alpha, gamma-dihydroxybutyric, glyceric, tartronic, malic, tartaric, citramalic and citric acids, diglycolic acid being preferred. Salts of these acids are (a) ammonium, (b) alkylammonium in which the alkyl is 1 to 4 C, (c) alkanolammonium in which the alkanol is 2 to 3 C and (d) mixed alkylalkanol ammonium containing 2 to 3 alkyl or alkanol radicals.  The salts may be the acid salts or normal salts in which the cations are the same or different.  The proportion of intensifier to active ingredient is from 1 : 10 to 50 : 1, and particularly 1 : 1 to 20 : 1.  The compositions may be in the form of ducts or sprays. Dusts with finely divided solids e.g. clays such as Fuller's earth, pyrophyllite, talc, bentonite, kieselguhr and diatomaceous earth; sulphur, volcanic ash, calcium carbonate, lime, lignin, wood flour, powdered wheat, soybean, potato and cottonseed.  Sprays may be in the form of a solution, suspension, dispersion or emulsion in aqueous or non aqueous media.  Dispersions or emulsions may be prepared with e.g. fatty alcohol sulphates, aliphatic or aromatic sulphonates, alkyl polyglycol ethers or analogous thioethers.  Solutions may contain wetting agents and humectants such as glycerin, diethylene glycol, ethylene glycol, polyethylene glycol, and water-soluble sugars, gums and starch.  Fungicides, insecticides, bactericides and other plant response agents may be present.  3, 6 endoxohexahydrophthalic acid or 3, 6-endoxo- 1, 2, 3, 6- tetrahydrophthalic acid may be used as in the parent Specification as acid, anhydride or salt.  Specified salts are sodium, potassium, calcium, strontium, magnesium, aluminium, iron, cobalt, nickel, zinc, cadmium, mercury, copper, ammonium; monodi- and trialkylammonium; mono-, di- and tri-alkanol-ammonium and mixed alkylakanol ammonium. Many specific examples are given of salts applicable to both the active ingredient and to the intensifier.ALSO:Herbicides, defoliants and like plant response agents comprise at least one compound which when in the presence of water yields anions having the configuration <FORM:0761857/VI/1> in which Y represents an unsatisfied valance or hydrogen and R represents vinylene or ethylene; and, as an intensifier, at least one saturated, open-chain carbon-to-carbon linked, mono-, di or tricarboxylic acid having 1 or 2 hydroxy groups and from 2 to 6 carbon atoms, or at least one salt of any of these acids with ammonia, an alkyl amine, an alkanolamine or a mixed alkyl-alkanol amine.  Specified acids are glycollic, lactic, hydracylic, hydroxy butric, hydroxyvaleric, epsilon hydroxycaproic; alpha, gamma-dihydroxybutyric, glyceric, tartronic malic, tartaric, citramalic and citric acids, diglycollic acid being preferred. Salts of these acids are (a) ammonium (b) alkylammonium in which the alkyl is 1 to 4C (c) alkanolammonium in which the alkanol is 2 to 3C and (d) mixed alkylalkanol ammonium containing 2 to 3 alkyl or alkanol radicals.  The salts may be the acid salts or normal salts in which the cations are the same or different.  The proportion of intensifier to active ingredient is from 1:10 to 50:1, and particularly 1:1 to 20:1.  The compositions may be in the form of dusts or sprays.  Dusts with finely divided solids, e.g. clays such as fuller's earth, pyrophyllite, talc, bentonite, kieselguhr and diatomaceous earth; sulphur, volcanic ash, calcium carbonate, lime, lignin, wood flour, powdered wheat, soybean, potato and cottonseed.  Sprays may be in the form of a solution, suspension, dispersion or emulsion in aqueous or non-aqueous media.  Dispersions or emulsions may be prepared with e.g. fatty alcohol sulphates, aliphatic or aromatic sulphonates, alkyl polyglycol ethers or analogous thioethers.  Solutions may contain wetting agents and humectants such as glycerin, diethylene glycol, ethylene glycol, polyethylene glycol, and water soluble sugars, gums and starch.  Fungicides, insecticides, bactericides and other plant response agents may be present.  3,6 endoxohexahydrophthalic acid or 3,6-endoxo-1, 2, 3, 6-tetrahydrophthalic acid may be used as in the parent Specification as acid, anhydride or salt.  Specified salts are sodium, potassium, calcium, strontium, magnesium, aluminium, iron, cobalt, nickel, zinc, cadmium, mercury, copper, ammonium; monodi- and trialklammonium; mono-, di-, and tri-alkanolammonium and mixed alkylalkanol ammonium. Many specific examples are given of salts applicable to both the active ingredient and to the intensifier.