Kumiai Chemical Industry Co., Ltd.

Kanji Nakamura

Shigeki Fujita

Susumu Katou

Susumu Kato

Yoshinori Hirabayashi

Takeshige Miyazawa

Toshihiro Ikeuchi

A composition comprising a condensed heterocyclic derivative and an N-alkyl-2-pyrrolidone and another organic solvent for enhanced stability. Particularly high effects can be obtained with a composition wherein the ratio of the condensed heterocyclic derivative to the N-alkyl-2-pyrrolidone is within a range of from 2:1 to 1:1000.

Herbicidal composition comprising oxadiazolo- or

A plant growth regulator composition comprising a cyclohexane derivative of the formula: ##STR1## wherein R is a hydrogen atom, a lower alkyl group, an alkylthioalkyl group, a phenyl group or a substituted phenyl group, and R.sup.1 is a lower alkyl group, a cycloalkyl group, a benzyl group, a substituted benzyl group, a phenethyl group, a phenoxymethyl group, a 2-thienylmethyl group, an alkoxymethyl group or an alkylthiomethyl group, or a salt thereof, and a nitrogen-containing water-soluble inorganic substance or urea.

Plant growth regulator composition comprising a cyclohexanone compound

Stable herbicide solutions of propanil having no or little tendency to precipitate or crystallize propanil from the solution even upon storage in a cold place are prepared by dissolving the propanil in (a) a solvent of the glycol ether-type having a solubility of not more than 5% by weight in water at 20.degree. C. and (b) dimethylsulfoxide or (c) N-methyl-2-pyrrolidone, and wherein propanil is present in an amount of 20 to 45% by weight, the glycol ether-type solvent is present in an amount of 35 to 85% by weight, and the dimethylsulfoxide or N-methyl-2-pyrrolidone is present in an amount of 1 to 20% by weight, on the basis of the total weight of the composition.

Herbicidal composition in the form of stable solution or emulsifiable

A herbicide composition containing propanil as active ingredient is now provided in the form of emulsifiable concentrated organic solution of propanil and surface-active agent(s) in non-toxic mixed organic solvents, which is readily dilutable with water to prepare a stable aqueous emulsion comprising the organic solution of propanil as the disperse phase dispersed in water as the continuous phase of the resulting aqueous emulsion without involving precipitation of propanil solids in said emulsion. Said mixed organic solvents may comprise a mixture of a glycol ether-type solvent with either one or two of dimethyl-sulfoxide and N-methyl-2-pyrrolidone, optionally along with an aromatic solvent. Also, a herbicide composition is provided in the form of a stable solution of propanil in non-toxic mixed organic solvents similar to those mentioned above, which is stable on storage and may be formulated into an emulsifiable concentrated organic solution of propanil by adding surface-active agent(s) thereinto.

Herbicidal composition comprising a liquid thiocarbamate herbicide, a

A high concentration herbicide formulation comprising (1) a herbicidally active thiolcarbamate of the following formula I which is liquid at room temperature, (2) at least one nonionic surfactant of the following formula II and (3) an anionic surfactant of the following formula III: ##STR1## wherein R.sup.1 is an alkyl group having from 1 to 3 carbon atoms, a phenyl group or a halogen-substituted phenyl group, R.sup.2 is an alkyl group having from 1 to 5 carbon atoms, and R.sup.3 is an alkyl group having from 1 to 5 carbon atoms, provided that R.sup.2 and R.sup.3 may form a ring; ##STR2## wherein R.sup.4 is ##STR3## wherein R.sup.5 is a hydrogen atom or a methyl group, m is an integer of from 1 to 3, x is an integer of at least 10, y is an integer of from 0 to 10, provided that x+y is within a range of from 10 to 30, A is an oxyethylene group, and B is an oxypropylene group, provided that the addition form of A and B may be a block-form or a random-form; and ##STR4## wherein R.sup.6 is an alkyl group having from 9 to 15 carbon atoms, M is an alkali metal or an alkaline earth metal, and n is the number of metal ions.

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Shimizu, Japan

Kanji Nakamura