Abstract: A method for phosphate coating zinc or nickel-zinc alloy electrolytically coated metal surfaces, in which they are exposed to a phosphating solution containing zinc, manganese, and phosphate ions, and optionally cobalt and/or nitrate ions. The method is conducted at an elevated temperature for up to slightly more than 5 seconds.

Abstract: The invention relates to a process for treating metal surfaces, preferably of aluminum, aluminum alloys and steel, for the subsequent application of organic coating compositions. The metal surfaces are wetted with an aqueous bath solution containing chromium(III)ions, fluoride ions and an organic film former which is soluble or homogeneously dispersible in water, after which the solution applied is dried and converted by heating into a water-insoluble film.The bath solution preferably contains the following constituents and approximate quantities thereof: 0.5 to 10 g/l of chromium(III)ions, 0.55 to 11 g/l of fluoride ions, 0.6 to 12.5 g/l of phosphate ions, and 0.15 to 5.0 g/l of organic film former. The organic film former preferably used is a polymer containing free carboxyl groups, more preferably a homopolymer and/or copolymer of acrylic and/or methacrylic acid.

Abstract: An elastomeric sealing gasket assembly comprising a sealing compound layer between a removable carrier paper and a flexible cover film can be kept permanently elastic and, at the same time, withstand condiderable surface pressure by embedding substantially imcompressible spacer in the sealing layer.

Abstract: Novel substituted nitrodiphenylamines and substantive hair dye preparations containing them or containing nitrodiphenylamines with different substituents. The dyes result in yellow to copper-colored shades of high intensity and fastness and are more soluble in water than known nitroanilines dyes.

Abstract: A process and composition for producing colorless, cold-sealed, anodized aluminum or aluminum alloy surfaces. The composition comprises an aqueous solution containing nickel ions and a solution of at least one azo or azo metal dye, the colors imparted by the nickel ions and dye offsetting each other.

Abstract: Novel substituted nitrodiphenylamines and substantive hair dye preparations containing them or containing nitrodiphenylamines with different substituents. The dyes result in yellow to orange-red colored shades of high intensity and fastness and are more soluble in water than known nitroaniline dyes.

Abstract: A process for leather tanning having the improvement of imparting waterproof properties to the leather by incorporating a sulfosuccinic monoester in the fatliquor.

Abstract: 3-(4-alkylbenzoyl)-acrylic acids corresponding to formula (1) ##STR1## in which R is straight-chain or branched-chain C.sub.8 -C.sub.18 alkyl, or mixtures thereof, are useful as corrosion inhibitors in lubricating oils and lubricating greases based on mineral oils.

Abstract: Benzoyl alanines having the formula: ##STR1## in which the symbols R.sup.1 and R.sup.2 (a) both represent hydrogen or(b) both represent a straight-chain or branched chain alkyl residue having from 1 to about 6 carbon atoms, or(c) R.sup.1 represents hydrogen and R.sup.2 represents a straight-chain or branched chain alkyl residue having from 1 to about 6 carbon atoms and in which the symbol R.sup.3 represents a C(CH.sub.3).sub.m (CH.sub.2 OH).sub.3-m moiety wherein the symbol m represents an integer of from 0 to 3and alkali metal and ammonium salts thereof, are disclosed.The compounds are useful as corrosion-inhibitors for metals in aqueous systems.

Abstract: The invention relates to a process for the separation of biotechnologically produced valuable materials form a cell suspension by crossflow microfiltration to obtain an high specific permeate flux while retention stays near 0% for long periods. To enable crossflow microfiltration to be carried out on an industrial scale in biotechnology in the separation of biotechnologically produced extracellular valuable materials from a cell suspension, particularly in the separation of alkaline protease for recovering enzyme, under economically acceptacle conditions, alkaline protease of relatively high molecular weight, more especially enzyme >20,000 daltons, is separated from a fermenter solution using polysulfone tubes having micropore diameters of from 0.3 to 0.5 .mu.

Abstract: A method for lubricating/releasing polyvinyl chloride, its copolymers, or polymer mixtures thereof, in which there is added a polyester comrising the polycondensation product of a C.sub.12-24 hydroxy carboxylic acid containing a secondary hydroxyl moiety, which may be chain terminated by a C.sub.8-24 monocarboxylic acid or glycerol.

Abstract: A microbially self-decontaminating dermatological cleansing concentrate containing at least one washing-active surfactant and at least one standard cleansing concentrate additive, and having a viscosity of about 500 to 5,000 mPas, improved by incorporating hydrogen peroxide, at least one fatty acid alkanolamide, and at least one water soluble alkali salt or ammonium salt; and a method for its use.

Abstract: A leather fatliquoring agent and a process for its use in which the agent is a sulfosuccinic (C.sub.12-24 fatty residue) ester and an anionic or nonionic emulsifier. The agent is stable in the presence of tanning liquor electrolytes.

Abstract: A hair care preparation containing a hair conditioning effective amount of a compound of the formula: ##STR1## wherein: R.sup.1 is a C.sub.12-16 -n-alkyl;R.sup.2 is a C.sub.1-4 -n-alkyl;is a C.sub.1-4 -hydroxyalkyl;R.sup.4 is a C.sub.1-4 -n-alkyl or a C.sub.2-4 -hydroxyalkyl;A is an inorganic or organic acid anion; andn is the valence of said anion.

Abstract: Dibasic lead-fatty acid salts and mixtures thereof with neutral lead-fatty acid salts are synthesized in a melt reaction using a free-hydroxyl organic compound as a catalyst/initiator. The resulting products are useful as stabilizers for halogen-containing polymers.

Abstract: A spray dryer consisting of a tower-like drying container with spraying elements for introducing therein the material to be dried, pipelines and heater for injecting a heated drying gas, and a separator for separating dry fine material and gas. The dry fine material is agglomerated inside the drying tower. The separator consists of porous filter tubes, on which a dust-laden gas stream impinges, which covers the entire flow cross-section of the drying tower. Fine product material deposited on the filter tubes is shaken off by surges of compressed air and drops into a drying zone, a spraying zone, and finally, into a collecting hopper.

Abstract: A process for the sulfonation of certain fat and oil mixtures, the product of such process, and a method for using such product as a leather tanning stuffing agent, the certain fat and oil mixtures comprising (A) 20-80% by weight of at least one C.sub.8-24 -fatty acid glycerol ester having an iodine number above 20, and (B) the balance q.s. to 100% by weight of at least one C.sub.1-4 -aliphatic monoalcohol ester of a C.sub.8-24 -fatty acid having an iodine number of 50-100.

Abstract: An oil-in-water emulsion and method for forming same, containing as the primary emulsifier, a palmitic acid soap and a stearic acid soap, in a palmitic:stearic weight ratio of 1:025-0.67.

Abstract: A method for corrosion inhibition in oil or oil emulsions comprising adding thereto a corrosion-inhibition-effective amount of at least one salt corresponding to the general formula ##STR1## in which R.sup.1 is a linear or branched C.sub.8-36 alkyl or C.sub.8-36 alkenyl or a mono- or polyethoxylated C.sub.8-18 alkyl containing from 1 to 10 ethoxy groups,R.sup.2 is a linear or branched C.sub.10-20 alkyl andM is half an equivalent of a divalent metal which is magnesium, calcium, barium, or zinc.

Abstract: A device for the preparation of a suspension from a supply of powdered, granular or block-form detergent by spraying water through nozzles into a water-permeable container accommodating the detergent material, provided with a hinged cover, at least one biasing means which pivots the sieve-like container as the cover opens from its horizontal in-use position toward the inside of the front wall of the housing, which is inclined outward in relation to the vertical housing axis, and at least one closure element which is arranged on the pivotal cover and which, as the cover pivots into its closed position, engages the container and turns it against the force of the biasing means into its horizontal in-use position, keeping it in that position.