Abstract: Emulsifier-containing plastics dispersions which serve as a binder for dispersion paints, should contain polymers forming a film at room temperature and having a high wet adhesion. Suitable polymers are prepared by polymerization of olefinically unsaturated monomers initiated by free radical-forming agents, especially in the presence of an emulsifier. As emulsifier there is used a salt of an acyl ester of the hydroxymethane-phosphonic acid. The emulsifier may remain in the dispersion ready-for-use without involving disadvantages for the wet adhesion.

Abstract: Novel aminoalkylpyrrolobenzoxazalkanes, physiologically tolerable acid addition salts thereof, method of preparing same and novel intermediates in the preparation thereof are described. These compounds are useful as analgesic agents and tranquilizers.

Abstract: Symmetrical and asymmetrical disazo compounds of the formula ##STR1## wherein K is the radical of an enolized or enolizable coupling component,Z is hydrogen, halogen, lower alkyl, lower alkoxy or nitro andN is 1 to 10 andWherein an asymmetry can be caused by a different position of the substituents on the benzene rings A and B and/or by different substituents Z and/or different coupling component radicals K, and mixtures of such compounds are colorants, especially pigments, of a high tinctorial strength and purity of shade, good rheological properties in lacquers and printing inks, high luster of colorations, good fastness to light, solvents, alkali, acids and migration, combined with a good covering power. Especially the combination of good covering power and high tinctorial strength is advantageous for lacquers and printing inks.

Abstract: Herbicidal agents, containing as active ingredient a compound of the formula ##STR1## or their salts with acids, are useful for combatting a great variety of mono- and dicotyledonous weeds. In the formula R.sub.1 is methyl or halomethyl, R.sub.2 is OH, SH, OM or SM (M=equivalent of a base), R.sub.3 is the same as R.sub.2 or an ester, amide or hydrazide group, R.sub.4 and R.sub.5 are preferably hydrogen and X is oxygen or sulfur.

Abstract: This invention relates to an improvement in an apparatus for ammonia feed in copying equipment with a cold trap, for freezing out ammonia and water from air extracted from the immediate vicinity of a developing chamber, in particular from pre-chambers, together with a rectifying column for releasing ammonia from the frozen-out ammonia-water mixture and recycling the gaseous ammonia into the developing chamber, the improvement comprising heat exchanger means,With two heat-conducting channels adjacent each other through which the extracted air flows counter-currently, a cold source inSaid heat exchanger means, said source being at a transition position between said channels and surrounded thereby, heat source meansAdapted to heat said heat exchanger means, outlet means on said heat exchanger means, means connecting said outlet means on said heat exchanger means to said rectifying column, and means connecting said rectifying column to said developing chamber.

Abstract: Novel aminoalkylpyrrolobenzoxazalkanes, physiologically tolerable acid addition salts thereof, method of preparing same and novel intermediates in the preparation thereof are described. These compounds are useful as analgesic agents and tranquilizers.

Abstract: Hydroxypyridine carbamates of the formula ##STR1## wherein R.sub.1 to R.sub.5 as defined below are valuable insecticides and particularly aphicides andCompounds of the formula ##STR2## wherein one of R'.sub.1 and/or R'.sub.3 are substituted carbamoyl and the other is preferably hydrogen or methyl, R'.sub.2 is a variety of substituents among which is hydrogen and acetyl, and R'.sub.3 and R'.sub.4 preferably form together a saturated or unsaturated C.sub.4 -chain which may be substituted, are valuable aphicides.

Abstract: The invention relates to a process for the stabilization of halogen-free or halogen-containing synthetic polymers against the degradation by light and heat, which comprises the addition of special 1,3,5-triaza-7-adamantanyl ureas to the polymers.

Abstract: Addition products of water-soluble sulfites or disulfites to maleic acid mono- or diesters of partially fluorinated alkanols or the mono-, di- or triethyleneglycol ethers of these alcohols are useful as surface active agents, especially as wetting agents, as levelling agents in wax emulsions or as dispersants.

Abstract: A rubber composition having improved tackiness and comprising a natural or synthetic rubber and as a tackifier from 0.3 to 15% by weight (referred to the rubber) of a modified alkylphenol novolak prepared from(A) a phenol component selected from the group consisting of(i) a monoalkylphenol having from 3 to 18 carbon atoms in the alkyl group, and(ii) a mixture of (i) with up to 30 mol% of a dialkylphenol having a total of from 6 to 24 carbon atoms in the alkyl groups with(B) a substance which is at least trifunctional with respect to formaldehyde and(C) formaldehydeWherein the molar ratio of one of components (i) and (ii): (B) is from 70:30 to 99:1, a method for its preparation and a molded article prepared therefrom.

Abstract: A process for electrolytically forming on a metallic element a protective layer or film in an electrolyte consisting of an aqueous solution of preferably sodium silicate or alternately of other salts rendering the electrolyte substantially basic, the metallic element constituting the anode in the process. The processed metallic element has particular usefulness as a support member for photolithographic printing plate, the electrolytically formed film acting as a barrier layer preventing deterioration of the light sensitive diazo resin, or the like, utilized as a photosensitive coating on lithographic plates.

Abstract: Intumescent flame-retardant coating composition consisting substantially of a film-forming agent, an ammonium polyphosphate, one or more substances which are carbonizable under the action of heat, a dispersant, and optionally a filler. The coating composition additionally contains an ammonium polyphosphate activator weighing 0.5 to 50% of the weight of ammonium polyphosphate. The activator is constituted by at least one salt which contains water of crystallization which is liberated upon the composition being heated to about 35.degree. C.

Abstract: This invention relates to a process for conducting ammonia in a diazo copying machine which comprises passing ammonia-containing exhaust air by first conduit means from a developing station of said copying machine through a cooled heat exchanger in which the ammonia and water is frozen out, then heating said heat exchanger to a temperature at which the water and the ammonia are liquified, passing the mixture of liquified water and liquified ammonia to a releasing station, adding fresh ammonia water to the liquified water and to the liquified ammonia, passing it together with the liquified water and liquified ammonia in the releasing station counter-currently to vapor produced by a vapor-generating means, and conducting the gaseous ammonia to the developing station, said process employing two heat exchangers, the first heat exchanger through which the exhaust air is passed being cooled and the second heat exchanger being heated for liquifying the ammonia and water frozen out during the preceding process step,

Abstract: Disclosed is a process and an apparatus for use therewith for maintaining a constant material web speed during winding of the material onto a driven roll. The process comprises adjusting the speed of the drive motor of the roll to be linearly proportioned to its control voltage; and, as the diameter of the roll increases due to the winding of material thereon, reducing the speed of the drive motor in accordance with a hyperbolic curve relating motor speed to the diameter of the roll characteristic of the winding operation.

Abstract: A blood leak in the dialyzer is detected by transmitting a pulsed beam of light into the dialysate flowstream at a predetermined angle of incidence between the central axis of the flowstream and the normal axis and measuring variations in reflecting light received by a photodetector arranged on the same side of the flowstream as the phototransmitter at a predetermined angle of reflection. The beam of light is interupted at a rate with a substantially equal on-time to off time ratio.

Abstract: In order to protect the environment from pollution, it is desirable to keep the polyvinyl alcohol content in waste waters as low as possible. Polyvinyl alcohol may be removed from waste waters by means of microorganisms on the the one hand, and on the other according to chemical/mechanical methods by salting-out and precipitation and subsequent separation of the solids. Advantageous is the precipitation in the form of a polyvinyl alcohol/boric acid/didiol complex, especially by means of alkaline earth metal hydroxides in an alkaline medium. Calcium hydroxide is a particularly suitable alkaline earth metal hydroxide.

Abstract: Novel N-[3-benzoylpropyl]spiro[dihydrobenzofuran-piperidine and pyrrolidine]s and methods of preparing same are described. These compounds are useful as analgetics and tranquilizers.

Abstract: There are described expandable molding compositions of styrene polymers containing 1,2,3,4,5,6-hexabromohexene-1 or 1,2,3,4,5,6-hexabromohexene-3 or mixtures thereof as the flame-retarding agent, and showing a favorable combination of improved properties, especially high pre-foaming velocity, good welding, rapid mold-releasing and good flame-retardance.

Abstract: Novel Spiro[dihydrobenzofuran-piperidine and pyrrolidine]s and methods of preparing same are described. These compounds are useful as analgetics and tranquilizers and as intermediates.

Abstract: A process for the preparation of a biomass is disclosed by cultivation of bacteria of the genus Methylomonas under aerobic conditions in a nutrient medium containing methanol as the sole carbon source, nitrogen sources and essential mineral salts, which comprises using a strain of the species Methylomonas clara ATCC 31226. The single cell protein thus obtained has a low content of nucleic acids, fats and carbohydrates and is especially suitable to prepare food and feed.