Abstract: A selective process for the preparation of 1-aminoanthraquinones from the corresponding 1-aminoanthraquinone-2-carboxylic acid by decarboxylation in basic solution in the presence of iron, tin or zinc as a catalyst.

Abstract: A skin cleansing composition comprising an antiseptic agent, a polyoxyethylene-polyoxybutylene block copolymer wherein the polyoxybutylene portion of the compound has a molecular weight of from 500 to 2000 and the polyoxyethylene portions contribute from about 60 to 90 percent by weight of the compound and water.

Abstract: Acid monoazo dyes of the formula ##STR1## in which X is hydrogen, chloro, bromo, nitro, C.sub.1 to C.sub.4 alkyl, methoxy, ethoxy or C.sub.2 to C.sub.4 alkanoylamino and K is a radical of a coupling compound as defined below. The dyes are suitable for dyeing natural or synthetic polyamides giving colorations with very good fastness properties.

Abstract: Stable graft polymer dispersions are prepared employing in situ free-radical polymerization of ethylenically unsaturated monomer or monomers in polyol in the presence of an alkylene oxide adduct of a styrene-allyl alcohol copolymer stabilizer.

Abstract: Substituted alkylammonium salts of the formula ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are hydrogen, C.sub.1-4 -alkyl, fluorine, chlorine or bromine, X is oxygen or sulfur, n denotes one of the integers 2, 3 and 4, A denotes quinuclidine or pyrrolizidine, or --NR.sup.4 R.sup.5 R.sup.6, R.sup.4, R.sup.5 and R.sup.6 denoting C.sub.1-6 -alkyl, C.sub.2-6 -alkenyl or C.sub.2-6 -alkynyl which are unsubstituted or substituted by halogen, cyano or C.sub.1-4 -alkoxy, or R.sup.5 and R.sup.6, as alkylene groups, may be part of an unsubstituted or C.sub.1-2 -alkyl-substituted 5- or 6-membered heterocycle with 1 to 3 heteroatoms in the ring, and Z is the anion of any non-phytotoxic acid HZ, the manufacture of such compounds, agents for regulating plant growth containing these compounds, and the use thereof for regulating plant growth.

Abstract: Sulfamic acid halides and processes for the preparation of sulfamic acid halides by reaction of monosubstituted sulfamic acid halides with halogen compounds in the presence of specific amounts of a basic compound and in the presence of an organic solvent, if desired with subsequent treatment with water at a pH of at most 7. The compounds obtainable by the process of the invention, some of which are new, are valuable starting materials for the preparation of crop protection agents, dyes and drugs.

Abstract: A process for underlaying flat-bed steel rule dies prior to producing sheet-like geometrical cut blanks, preferably from multi-blank sheets, in which varying tolerances, in the punching and cutting direction, of the steel rule cutters held in a rigid plate are compensated by a sheet, corresponding to the area of the sheet being cut, placed on the back of the steel rule cutter plate and consisting of a flowable hardenable plastic, the upper and lower platen being moved together so as to close the die and the sheet of plastic, bearing the relief formed thereon, then being solidified by an after-treatment.

Abstract: The present invention relates to a simplified process, which avoids organo-lithium intermediates, for the preparation of erythro-.alpha.-piperid-2-yl-2,8-bis-(trifluoromethyl)-quinolin-4-yl-metha nol, wherein 2,8-bis-(trifluoromethyl)-quinoline-4-carboxylic acid or a salt thereof is reacted with a pyrid-2-yl-magnesium halide to give pyrid-2-yl-2,8-bis-(trifluoromethyl)-quinolin-4-yl ketone in the manner of a Grignard reaction, and this product is hydrogenated, in a conventional manner, to give erythro-.alpha.-piperid-2-yl-2,8-bis-(trifluoromethyl)-quinolin-4-yl-metha nol.

Abstract: A magnetic recording medium comprising a non-magnetic base and a magnetizable layer which is applied to at least one side thereof and comprises magnetic particles finely dispersed in a polymeric binder and additives, the surface of the magnetizable layer being provided with a coating of a perfluoropolyether oil mixture as a lubricant.

Abstract: Oximinophosphoric acid derivatives of the formula I ##STR1## where R.sup.1 is unbranched or branched alkyl of up to 4 carbon atoms,R.sup.2 is unbranched or branched alkoxy or alkylthio of up to 4 carbon atoms, unbranched or branched alkyl of up to 3 carbon atoms, phenyl, amino or alkylamino or dialkylamino, where each alkyl is unbranched or branched and of up to 4 carbon atoms,R.sup.3 is hydrogen or methyl,X is oxygen or sulfur andn is 1 or 2,and their use in pest control.

Abstract: Polyisocyanurate polymers are prepared by polymerization of polyisocyanates in organic solvents employing trimerization catalysts. The polyisocyanates are reacted with halogenated alcohols subsequent to polymerization. These polymers may be dispersed in polyols for the preparation of cellular and non-cellular polyurethane products having improved flame retardant physical properties.

Abstract: Anhydrous or substantially anhydrous formic acid is obtained by hydrolysis of methyl formate, in a process wherein(a) methyl formate is hydrolyzed,(b) the methanol and excess methyl formate are distilled from the hydrolysis mixture obtained,(c) the bottom product of distillation (b), consisting of formic acid and water, is extracted, in a liquid-liquid extraction, with an extractant which in the main takes up the formic acid,(d) the resulting extract phase, consisting of formic acid, the extractant and a part of the water, is subjected to distillation,(e) the top product obtained from this distillation and consisting of all or part of the water introduced into the distillation, and part of the formic acid, is recycled, as vapor, into the lower part of the distillation column of stage (b),(f) the bottom product of distillation stage (d), consisting of the extractant, with or without part of the water, and the greater part of the formic acid, is separated by distillation into anhydrous or substantially anhydrou

Abstract: Supported catalysts containing silver and alkali metals, for the preparation of ethylene oxide from ethylene and oxygen in the gas phase, are prepared or regenerated by modifying, respectively, a new or spent supported catalyst which already contains metallic silver and may or may not contain the light alkali metals lithium and/or sodium and, where a spent catalyst is concerned, also contains the heavy alkali metals potassium, rubidium and/or cesium, with a solution containing the heavy alkali metals, the modifier solution used containing(a) a surfactant and/or a reducing agent, in the case of the preparation of a new catalyst or(b) a surfactant, in the case of the regeneration of a spent catalyst.

Abstract: A process for the preparation of a butyrolactone of the general formula ##STR1## where R.sup.1 is unsubstituted or substituted alkyl or phenyl and R.sup.2 to R.sup.6 are hydrogen or unsubstituted or substituted alkyl or phenyl, wherein a .gamma.-formylcarboxylic acid ester of the formula ##STR2## where R is lower alkyl, is treated with oxygen at an elevated temperature of 60.degree.-150.degree. C.

Abstract: De-dusting of gases is carried out in an apparatus containing a granular-bed filter, the pourable granular filter medium flowing downward through the bed. The apparatus comprises a vessel of rectangular cross-section with a vertical side wall (4) extending from the top to the bottom. A partition (5), arranged parallel to the side wall (4), extends from the upper end of the vessel into the interior of the vessel. The remaining three side walls of the vessel extend - at least starting from a level corresponding to the lower end of the partition (5), taperingly downward to the outlet (9). The partition (5) is supported by the two walls adjacent to the vertical wall and forms, together with these and with the talus (7) of the filter medium, which arises at the lower end of the partition, a chamber (3) into which the inlet (2) for the gas to be purified opens.

Abstract: Preparation of 5-(2,2-dihalovinyl)-4,4-dialkyl-tetrahydro-furan-2-ones of the formula I ##STR1## where R.sup.1 and R.sup.2 are each alkyl of 1 to 4 carbon atoms and X is halogen, by reacting a carboxylic acid amide of the formula II ##STR2## where R.sup.3 and R.sup.4 are each alkyl of 1 to 4 carbon atoms, aralkyl of 7 to 9 carbon atoms or aryl of 6 to 10 carbon atoms, or together with the nitrogen form a 5-membered or 6-membered saturated ring which may contain a second hetero-atom, with a carbon tetrahalide of the formula IIICX.sub.4 (III)to give an iminium salt of the formula IV ##STR3## and then hydrolyzing the iminium salt; and novel iminium salts of the formula IV.

Abstract: A process for the manufacture of polyalkylenepolyamines by reacting a primary or secondary amine with a compound of the formula ##STR1## where X is --Cl, --Br, or --OSO.sub.3 H and R.sup.1 and R.sup.2 are H or saturated alkyl of 1 to 4 carbon atoms, and with at least the stoichiometric amount, based on the compound of the formula I, of an aqueous solution, of from 15 to 45 percent strength, of an alkali metal hydroxide or alkaline earth metal hydroxide, at from 60.degree. to 200.degree. C., cooling the reaction mixture to a temperature at which 2 aqueous phases form, and separating off the upper phase, containing polyalkylenepolyamnines. The rate of reaction can be increased by adding catalytic amounts of compounds which initiate the polymerization of alkyleneimines.

Abstract: Acylphosphine oxide compounds of the general formula ##STR1## where R.sup.1 is alkyl, cyclohexyl, cyclopentyl, aryl which is unsubstituted or substituted by halogen, alkyl or alkoxy, or an S-containing or N-containing five-membered or six-membered heterocyclic radical,R.sup.2 has one of the meanings of R.sup.1 (but R.sup.1 and R.sup.2 may be identical or different), or is alkoxy, aryloxy or aralkoxy, or R.sup.1 and R.sup.2 together from a ring, andR.sup.3 is straight-chain or branched alkyl of 2 to 18 carbon atoms, a cycloaliphatic radical of 3 to 12 carbon atoms, phenyl or naphthyl which are alkyl-, alkoxy- or thioalkoxy-substituted, or an S-containing or N-containing five-membered or six-membered heterocyclic radical, and may contain additional functional groups, or is the group ##STR2## where R.sup.1 and R.sup.2 have the above meanings and X is phenyl or an aliphatic or cycloaliphatic divalent radical of 2 to 6 carbon atoms,and one or more of the radicals R.sup.1 to R.sup.

Abstract: A process for the preparation of an amide-containing polyether comprises polycondensing a dihalobenzene compound, preferably bis-(4-chlorophenyl) sulfone or 4,4'-bis-(4"-chlorobenzoyl)-diphenyl ether, with an amide-containing bis-phenol of the formula HO-Ar.sup.1 -NHCO-Ar.sup.2 -CONH-Ar.sup.1 -OH where Ar.sup.1 is an aromatic radical of 6 to 12 carbon atoms and Ar.sup.2 is an aromatic radical of 6 to 12 carbon atoms or has the formula II ##STR1## where A.sup.1 is --SO.sub.2 --, --CO--, --C(CH.sub.3).sub.2 -- or 0 and n is 0 or 1, preferably 1,4-bis(4-hydroxybenzamido)-benzene, in the presence of an anhydrous alkali metal carbonate, and optionally in the presence of a bisphenol of the formula III ##STR2## where Ar.sup.1 and A.sup.1 have the above meanings and n and m are 0 or 1. The polyethers may be used to produce moldings, fibers, films, adhesives and coating materials.

Abstract: 4-Nitro-2-trichloromethylphenyl disulfides, their manufacture, agents containing these compounds as active ingredients for use on microorganisms, and the use of these compounds for protecting substrates against microorganisms.