Abstract: A pigmentary form of isoindoline pigments which has high color strength is obtained if these pigments contain(a) a compound of the formula (I) ##STR1## and (b) one or more isoindoline compounds of the formula (II) ##STR2## and the pigment is obtained by dry-blending (I) and (II) until the primary particles are .ltoreq.0.2 .mu.m and then heating the finished mill base in an organic liquid or in a mixture of water and an organic liquid. In the formulae, X is ##STR3## and R.sup.2 is --CN, --CONHR.sup.4, 2-quinazolonyl, 2-quinoxazolonyl or 2-benzimidazolyl, R.sup.3 is hydrogen, alkyl or unsubstituted or substituted phenyl, R.sup.1 is hydrogen or methyl, and R.sup.4 is hydrogen, alkyl or phenyl, and the phenyl radical and/or the heterocyclic radicals can be further substituted. The compounds I and II differ from one another.The color strengths of the resulting pigments are substantially superior to the prior art.

Abstract: The novel compounds of the general formula I ##STR1## where A is a radical of a coupling or diazo component which, if necessary after conversion, is capable of complex formation, Ar is an unsubstituted or substituted aromatic or heterocyclic radical, D is a radical of a diazo component and Me is a Co.sup.2+, Cu.sup.2+, Zn.sup.2+, Mn.sup.2+ or Ni.sup.2+ ion, and the ring B can be further substituted, are very useful for dyeing cellulose fibers, polyesters and blends of cellulose fibers and polyesters.The present dyes are lightfast and fast to washing and to solvents.

Abstract: Very pure alkanediols are prepared by catalytic hydrogenation of an alkynediol in an aqueous medium under a pressure greater than 20 bar and at above 200.degree. C.

Abstract: N-Benzoyl-N'-phenylureas of the formula ##STR1## where X, Y, Z and R have the meanings given in the description, are used for insect control.

Abstract: Synthetic resins which are self-crosslinking under the action of heat have on average two phenolic hydroxyl groups per molecule and are prepared by reacting a reaction product of an epoxy resin and a bifunctional phenol with formaldehyde and a mixture of secondary amines.After they have been protonated with an acid, the resins are suitable as cathodic electrocoating binders.

Abstract: 2-Methylalk-2-enals of the formula ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, alkyl or an aromatic radical, are prepared by isomerization of an acrolein derivative of the formula ##STR2## with a zeolite catalyst, an aluminum silicate and/or an aluminum phosphate.

Abstract: O,S-dialkyl S-[carbamyloxyalkyl] dithiophosphates of the general formula (I) ##STR1## where, independently of one another, R.sup.1 and R.sup.2 are each alkyl of not more than 4 carbon atoms and R.sup.3, R.sup.4 and R.sup.5 are each hydrogen or alkyl of not more than 6 carbon atoms, or R.sup.4 and R.sup.5, together with the nitrogen atom to which they are bonded, form a saturated or olefinically unsaturated ring which contains not more than 6 carbon atoms and may or may not contain one or more oxygen, sulfur or nitrogen atoms, are used for controlling insects or mites.

Abstract: Caprolactam is obtained by treating .epsilon.-aminocaproic acid with steam at elevated temperatures in the presence of a catalyst by a process in whcih .epsilon.-aminocaproic acid is introduced into a fluidized alumina bed and treated in the presence of steam at from 290.degree. to 400.degree. C.

Abstract: A compound of the formula: ##STR1## wherein R.sup.1 and R.sup.2 independently of one another are unsubstituted or hydroxy substituted, C.sub.1 -C.sub.4 alkoxy substituted, cyano substituted, C.sub.1 -C.sub.4 alkoxycarbonyl substituted, di-C.sub.1 -C.sub.4 alkylamino substituted, (CH.sub.3)(C.sub.6 H.sub.5 CH.sub.2)NC.sub.2 H.sub.4 substituted, chlorine substituted or bromine substituted C.sub.1 -C.sub.4 -alkyl, cyclohexyl, benzyl, phenylethyl or phenyl, R.sup.1 and R.sup.2 together with the nitrogen are morpholino, pyrrolidino, piperidino or N-methylpiperazino;R.sup.3 is hydrogen, chlorine, bromine, methyl, ethyl, methoxy, ethoxy or nitro;R.sup.4 and R.sup.5 independently of one another are hydrogen, C.sub.1 -C.sub.4 -alkyl or benzyl; X is oxygen or imino; A.sup.

Abstract: In order to prepare thermoplastic polyurethane elastomers(a) organic diisocyanate,(b) polyhydroxyl compounds with molecular weights of 500 to 8,000, and(c) chain extenders with molecular weights of 60 to 400 in the presence of(d) catalysts, and optionally(e) auxiliaries, and/or(f) additivesare reacted in two reaction stages at temperatures from 60.degree. C. to 250.degree. C. In the first reaction stage the components are continuously mixed, the reaction mixture is applied to a carrier, preferably a conveyor band of thermoplastic material, and is allowed to react at the reaction temperature until solidified. Subsequently, the solidified reaction mixture is melted in an extruder and the reaction is completed in the second reaction stage.

Abstract: .alpha.-substituted acrylamides of the general formula I ##STR1## where R.sup.1 is a straight-chain, branched or cyclic alkyl radical of not more than 15 carbon atoms which can be unsubstituted or further substituted, are prepared by a process in which the corresponding .alpha.-substituted acrolein oximes are heated at from 40.degree. to 250.degree. C. in the presence of a copper(II) carboxylate.

Abstract: Impact-resistant nylon molding materials are prepared by activated alkaline lactam polymerization by a process in which the polymerization is carried out in the presence of a graft polymer in whichA. from 5 to 95 parts by weight of a rubber-like polymer having a glass transition temperature below 0.degree. C. form the grafting base forB. from 95 to 5 parts by weight of a polyadduct, polycondensate or acrylyl polymer having a glass transition temperature above 0.degree. C., with or withoutC. from 0 to 90 parts by weight of a vinyl monomer.

Abstract: A process for the preparation of a magnetic recording medium by dispersing pulverulent magnetic material in a binder mixture which is dissolved in an organic solvent and essentially consists of an elastomeric polyurethane and a high molecular weight hydroxyl-containing polymer, with addition of dispersing assistants and conventional additives, applying a layer of the dispersion, to which a diisocyanate and/or polyisocyanate has first been added, to a base material and the solidifying the layer and crosslinking the binder matrix, wherein the diisocyanate and/or polyisocyanate is added to the dispersion and, before applying the dispersion to the base, from 15 to 55% of the NCO groups present react with the hydroxyl-containing polymer of the binder mixture.

Abstract: Molded catalyst materials contain metallic cobalt and/or nickel particles and a lubricant, the said particles being obtained by reduction of cobalt oxide and/or nickel oxide particles containing less than 0.1% by weight of alkali metal oxides and/or alkaline earth metal oxides at .ltoreq.500.degree. C., and the molded catalyst material having an indentation hardness greater than 300 kp/cm.sup.2.

Abstract: A mixture which consists of organic compounds and water and is obtained in solvent recovery by adsorption and desorption is separated by a process in which the water is removed from the said mixture (3) in an extraction column (1) by means of a highly concentrated alkali solution (4) (extracting agent), the resulting dilute alkali solution (6) (extracting agent) is then evaporated down in an evaporator (7) by means of added steam (8), the steam (9) formed in this procedure is fed to the adsorbers (2) for desorption of the organic compounds, the resulting highly concentrated alkali solution (4) is recycled to the extraction column (1), and the anhydrous organic compounds (5) are removed.

Abstract: Hexamethylene diisocyanate and/or isomeric alkylene diisocyanates having 6 carbon atoms in the alkylene radical, preferably 2-methylpentamethylene 1,5-diisocyanate and/or 2-ethyltetramethylene 1,4-diisocyanate are prepared without the use of phosgene in a multiple-step process by means of(a) reacting hexamethylene 1,6-diamine and/or isomeric alkylene diamines having 6 carbon atoms in the alkylene radical with urea and alcohol in the presence of dialkyl carbonate and/or carbamic acid alkyl ester as well as, in some cases, catalysts to form hexamethylene 1,6-dialkylurethane and/or isomeric alkylene dialkylurethanes having 6 carbon atoms in the alkylene radical,(b) separation and return to reaction step (a) of alcohol, dialkyl carbonate, and/or carbamic acid alkyl ester from the reaction mixture(c) evaporation of the hexamethylene 1,6-dialkylurethane and/or isomeric alkylene dialkylurethanes having 6 carbon atoms in the alkylene radical,(d) cleavage of the vaporized diurethanes into hexamethylene diisocyanate an

Abstract: An amino-containing and carboxyl-containing polymer tanning agent containing more carboxyl groups than amino groups, when used for retanning mineral-tanned leather, gives, alone or in combination with conventional anionic retanning agents, leather which is readily dyeable and has good sensory properties.

Abstract: This invention discloses a non-phosgene process for the preparation of 3-isocyanatomethyl-3,5,5-trimethylcyclohexylisocyanate by the reaction of the precursor diamine with urea and an aliphatic alcohol in the presence of a dialkyl carbonate and an alkyl carbonate. The intermediate diurethane is separated from starting materials and by-products and thermally cleaved to alcohol and diisocyanate which are separated by fractional condensation of the products from the vapor state. This process gives high yields of the desired diisocyanate and lends itself particularly to continuous processing.

Abstract: 1,7-diphenyl-3-methylaza-7-cyano-8-methylnonane and its antipodes and salts are used for the treatment of diseases.

Abstract: A process for the preparation of an alkenyl-lactic acid ester by reaction of a cyanohydrin with an alcohol in the presence of hydrogen chloride, followed by hydrolysis. The compounds obtained may be used for the preparation of alkaloids and crop protection agents, and as monomers for copolymerization.