Abstract: A process for preparing a 3-oxo-7-hydroxy-bicyclo[3,3,0]octan-2-ylcarboxylic acid ester of the formula ##STR1## wherein R.sub.1 is alkyl of 1-6 carbon atoms or phenalkyl of 7-10 carbon atoms andR.sub.2 is hydrogen, alkyl or 1-6 carbon atoms, phenalkyl of 7-10 carbon atoms, tetrahydropyranyl, tetrahydrofuranyl, .alpha.-ethoxyethyl, tri-C.sub.1-4 -alkylsilyl, wherein the alkyl moieties can optionally be substituted by phenyl, or ##STR2## wherein R.sub.3 is alkyl of 1-6 carbon atoms or aryl of 6-12 carbon atoms, comprises oxidizing the corresponding 7-hydroxy-2-oxabicyclo [3,3,0]octan-3-ylideneacetic acid ester of the formula ##STR3## wherein R.sub.1 and R.sub.2 are as defined above, to form the corresponding ketone, reacting the latter with a base which opens the ether oxygen containing ring, and then reducing the resultant product to prepare the 3-oxo-7-hydroxy-bicyclo[3,3,0]octan-2-ylcarboxylic acid ester.

Abstract: The invention concerns the preparation of new propane-1,2-dionedioximes, particularly pesticides having an insecticidal action containing these compounds as active substance, and to methods for the preparation of these compounds.

Abstract: A process for the preparation of 1,2,3-thiadiazol-5-yl ureas of the general formula ##STR1## in which a 1,2,3-thiadiazol-5-carbohydroxam acid derivative of the formula ##STR2## is dissolved in an inert organic solvent with an acid halide of the formulaR.sub.4 -X IIIto form an acylated derivative which then reacts with an amine of the formula ##STR3## to form the desired product.

Abstract: Novel carbaminic acid phenyl esters of the general formula ##STR1## are described, in which R.sub.1 is C.sub.1 -C.sub.2 -alkoxy-C.sub.1 -C.sub.2 -alkyl, di-C.sub.1 -C.sub.2 -alkoxy-C.sub.1 -C.sub.2 -alkyl, cyano-C.sub.1 -C.sub.2 -alkyl, halogen-C.sub.1 -C.sub.2 -alkyl, phenyl-C.sub.1 -C.sub.2 -alkyl, 1,3-dioxolan-2-yl-methyl, 2-methyl-1,3-dioxolan-4-yl-methyl, 2,2-dimethyl-1,3-dioxolan-4-yl-methyl or aminocarbonylmethyl;R.sub.2 is phenyl optionally mono- or disubstituted by one or more substituents selected from the group consisting of halogen, methyl and methoxy; andR.sub.3 is C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.8 alkenyl, cyclopropyl or trichloromethyl, or R.sub.1 is methyl or ethyl, R.sub.2 is .alpha.-cyanobenzyl or 1-cyano-2-phenylethyl and R.sub.3 is ethyl.

Abstract: A process for producing compounds of 1,2,3-thiadiazole-5-carboxylic acid is described. These compounds are effective as herbicides, fungicides and plant growth controllers.

Abstract: What are disclosed are melt adhesives comprising a polyesteramide having a slow solidification rate, comprising(A) a dimerized fatty acid having 16-44 carbon atoms; optionally in admixture with a monocarboxylic acid,(B) a member selected from the group consisting of caprolactam and 6-aminocaproic acid, wherein 0.25-5.0 mol of component (B) is employed per mol of carboxyl groups present in component (A).(C) a monoalkanolamine of the formulaHO-R-NH.sub.2,wherein R is linear or branched aliphatic hydrocarbon having 2 to 8 carbon atoms which may be interrupted by oxygen atoms, and(D) a member selected from the group consisting of diprimary, disecondary, and primary-secondary diamines, wherein the equivalence ratio of (C):(D) is between 0.1:0.9 and 0.9:0.1.

Abstract: A process for making 5-mercapto-1,2,3-triazoles of the formula ##STR1## wherein R.sub.1 is hydrogen or a C.sub.1 -C.sub.4 -alkyl which may also be substituted, the said process comprising(1) as a first step reacting a solution of 1,2,3-thiadiazole-5-carbohydroxamic acid derivative of the formula ##STR2## wherein R.sub.1 has the meaning as above and R.sub.2 is hydrogen or a univalent metal equivalent in an inert organic solvent in the presence of an acid acceptor with a solution in an inert organic solvent of an acid halide of the formulaR.sub.3 --Xso as to form an acylated 1,2,3-thiadiazole-5-carbohydroxamic acid derivative(2) reacting as a solution in an inert organic solvent the carbohydroxamic acid derivative just obtained with an alcohol or phenol of the formulaH--O--R.sub.

Abstract: Diurethanes of the formula ##STR1## wherein R.sub.1 is alkyl, alkenyl or halogenoalkyl andR.sub.2 is phenyl or phenyl substituted in one or more places by the same or different substituents selected from the group consisting of halogen, trifluoromethyl, alkyl and alkoxy.

Abstract: Diurethanes of the formula ##STR1## selectively damage or destroy weeds in crops of carrots, cotton, peanuts, and rice without damaging the crop plants when R.sub.1 is methyl or ethyl; R.sub.2 is propyl, butyl, isobutyl, or benzyl; R.sub.3 is hydrogen, methyl, ethyl, methoxy, or methylmercapto; and X is oxygen or sulfur.

Abstract: The method of recovering water by vaporizing aqueous solutions employs a heat pump circuit having a compressor, condensor, extention valve and evaporator for a heat transfer medium. The circulation channel for a gas stream which is capable of absorbing water vapor includes a gas washing station into which is sprayed the aqueous solution to be vaporized. The gas stream is guided past the condensor of the heat pump which acts as a heater and the heated gas is delivered into the gas washing station where is absorbs water. The water saturated gas stream is fed past the evaporator which acts as a refrigerating device and the water contents from the gas stream is condensed on the evaporator and returned into a galvanizing bath for example.

Abstract: A method for producing printed circuits. An epoxy resin reinforced with glass fiber is used as basis material, coated with copper, drilled and activated. In one embodiment, the circuit diagram is applied after covering the non-desired regions with a resistance, by screen or photo printing. A nickel, cobalt, or nickel-cobalt layer is deposited onto the circuit, the circuit is covered with a solder prevention lacquer, then the eyes and bore holes are covered with copper. Alternatively, after pre-treatment and activation, all areas except the soldering eyes and bore holes are covered with resist, a nickel, cobalt or nickel-cobalt layer is applied, the circuit diagram is printed using a resist, and the eyes and bore hole are treated as above.

Abstract: Acylurea insecticides and methods of preparation thereof are disclosed. The acylureas have compositions of the general formula ##STR1## wherein R.sub.1 is halogen, alkyl with from 1 to 6 carbon atoms or alkoxy with from 1 to 6 carbon atoms; R.sub.2 is hydrogen or halogen; R.sub.3 is hydrogen or alkyl with from 1 to 6 carbon atoms; R.sub.4 is hydrogen, alkyl with from 1 to 6 carbon atoms, aryl with from 6 to 12 carbon atoms, halogen substituted aryl with from 6 to 12 carbon atoms or alkaryl with from 7 to 12 carbon atoms; R.sub.5 is halogen; R.sub.6 is hydrogen or halogen; X is halogen or alkyl with from 1 to 6 carbon atoms; and n is 0, 1 or 2.

Abstract: A composition for growth regulation of plants or for defoliating plants comprises in combination(a) at least one compound of the formula ##STR1## wherein R.sub.1 is hydrogen or alkyl of 1 to 3 carbon atoms and R.sub.2 is hydrogen or alkyl of 1 to 4 carbon atoms and R.sub.3 is alkyl of 1 to 4 carbon atoms, cycloalkyl of 5 to 8 carbon atoms, phenyl, halogenophenyl, methylphenyl, methoxyphenyl is nitrophenyl and X is oxygen or sulfur and(b) at least one other plant growth regulating or defoliating agent which, in combination with the compound at (a) results in a synergistic effect in regard to the growth regulating and defoliant properties. The composition is particularly suited for the defoliation of cotton plants.

Abstract: 2-(dimethylcarbamoylimino)-benzthiazoline-3-id-salts of the formula ##STR1## in which B.sup.(+) is a univalent metal equivalent. The compounds have herbicidal activity and may be used in herbicidal compositions.

Abstract: Diurethanes of the general formula ##STR1## wherein R.sub.1 is allyl or a C.sub.1 to C.sub.4 alkyl radical possibly substituted by halogen;R.sub.2 is a C.sub.1 to C.sub.4 alkyl radical possibly substituted by halogen, a C.sub.3 to C.sub.4 alkenyl or alkinyl radical, cyclohexyl, phenyl, C.sub.1 to C.sub.3 alkylphenyl, C.sub.1 to C.sub.3 alkoxyphenyl, halogen phenyl, benzyl or phenylethyl;R.sub.3 is a C.sub.3 or C.sub.4 hydrocarbon radical possibly substituted by halogen, or halogen ethyl; orR.sub.1 is ethyl or allyl, R.sub.2 is phenyl, C.sub.1 to C.sub.3 alkylphenyl, C.sub.1 to C.sub.3 alkoxyphenyl or halogen phenyl, and R.sub.3 is methyl or ethyl;are provided as herbicidal agents notably in cotton cultivation in the pre-emergent and emergent stages of development of such cotton; including other cultivations such as for cereal, corn and soybean.

Abstract: 2-(Dimethylcarbamoylimino)-benzthiazoline-3-carboxylic acid ester of the formula ##STR1## in which R is an aliphatic hydrocarbon, a substituted aliphatic hydrocarbon, an aromatic hydrocarbon or a substituted aromatic hydrocarbon and X is oxygen or sulfur.The compounds have an excellent selectivity action in regard to agricultural plants and also possess a superior herbicidal activity against mono- and di-cotyl weeds.

Abstract: Limited surfaces areas are galvanized by depositing a metal or metal alloy from an electrolytic solution which is applied in a jet stream so as to make contact with said surface at a predetermined spot and follow the outline of the surface up to a second predetermined spot where it is detached from the surface by suction action.

Abstract: An arrangement for controlling the electric energy supply rate to an electroplating installation includes a positionally adjustable actuating member connected to a carrier which supports workpieces to be electroplated in an electroplating vat, and a sensor mounted on the vat and operative for detecting the extent of positional adjustment of the actuating member and generating a signal proportionate thereto. The signal is then transmitted to a source of direct electric current to be used thereat for controlling the output rate of the source. The actuating member is a setting screw which is threaded into a sleeve which, in turn, is mounted on a bracket rigidly connected to the carrier, while the sensor includes a housing rigidly mounted on a lug of the vat, and a potentiometer accommodated in the housing and having a detecting rod which extends beyond the housing and into the path of displacement of the setting screw.

Abstract: 1,2,3-Thiadiazole-5-yl-urea derivatives of the formula ##STR1## in which R.sub.1 is hydrogen or alkyl of 1 to 5 carbon atoms, R.sub.2 is hydrogen or alkyl from 1 to 5 carbon atoms which latter may also have at least one oxygen or sulfur atom interposed in the carbon chain and wherein R.sub.3 is a heterocyclic hydrocarbon residue in which at least one nitrogen atom is present in the ring, which residue may also be substituted by the same or different substituents comprising alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, halogen, nitro or trifluoromethyl. The compounds are effective as agents for growth retardation and defoliation of plants.The invention also comprises a process of making the product and compositions in which the products are the, or one of the, effective agents.

Abstract: 5-amino-1,2,3-thiadiazoles of the formula ##STR1## are made by reacting halogenoacetaldehydes of the formulaX--CH.sub.2 --CH.dbd.O IIwith hydrazine derivatives of the formulaH.sub.2 N--NH--COR IIIpreferably in an aqueous medium or in a mixture of an aqueous medium with organic solvents so as to form acylhydrazones of the formulaX--CH.sub.2 --CH.dbd.N--CH--CO--R IVwhereupon the latter are reacted with thionylchloride of the formulaSOCl.sub.2 Vwhereby 5-halogeno-1,2,3-thiadiazoles are formed which are then reacted with ammonia preferably in the presence of a catalyst such as a mineral acid or Lewis acid whereby the desired product is obtained. The products are useful in making plant protection agents and herbicides such as the 1,2,3-thiadiazolyl-urea derivatives.