Abstract: The invention relates to a process for regenerating wastepaper and to the use of certain hydroxysulfonate salts for removing printing ink from printed wastepaper and/or paper circuit waters.

Abstract: A paste-form, non-phosphate detergent which is particularly suitable for the washing of heavily soiled working apparel and which generates no troublesome foam essentially contains (A) 1 to 3% by weight sodium alkyl benzene sulfonate having linear C.sub.9-13 alkyl chains, (B) 14 to 18% by weight of a linear or 2-methyl-branched, saturated, primary C.sub.12-15 alcohol containing 2 to 4 ethylene glycol ether groups, (C) 12 to 16% by weight of a linear or 2-methyl-branched, saturated, primary C.sub.12-15 alcohol containing 6 to 8 ethylene glycol ether groups, (D) 50 to 65% by weight sodium silicate having the composition Na.sub.2 O:SiO.sub.2 =1:0.8 to 1:1.5, (E) 2 to 8% by weight, based on sodium salt, of at least one complexing agent from the group consisting of nitrilotriacetic acid and polyphosphonic acids, (F) 0.5 to 2.

Abstract: The invention is a process for cleaning and disinfection of heat and corrosion sensitive medical instruments, particularly endoscopes in which the surfaces of the medical instruments are contacted with a detergent and disinfectant solution. The solution has a pH of from 6 to 8 and contains a low foaming nonionic surfactant, a proteolytic enzyme, a complexing agent, and an aldehyde selected from the group consisting of formaldehyde and aliphatic dialdehydes containing 2 to 8 carbon atoms and, optionally, other standard detergent and disinfectant constituents. The cleaning solution is heated to 55.degree. to 65.degree. C. and kept at that temperature for 1 to 15 minutes during contact with the surfaces of a medical instrument. The surfaces are rinsed at least twice with water, the water being heated to 55.degree. to 65.degree. C. at least in the last rinse cycle and the medical instruments are dried with sterilized hot air at a temperature of 40.degree. to 60.degree. C. Water having a hardness of 3.degree.

Abstract: Poly-N-acylalkyleneimines corresponding to the following formula ##STR1## are used as an oxidatively crosslinking constituent in paints. In formula (I), R--CO represents the acyl radical of a mono- or polyunsaturated, aliphatic C.sub.16-22 carboxylic acid or a mixture of such radicals, R'--CO represents the acyl radical of a C.sub.1-22 carboxylic acid or a mixture of such radicals and x and y represent the percentages by weight of the particular polymer units, x assuming values of 20 to 100% and preferably 20 to 95% and y assuming values of 80 to 0% and preferably 80 to 5%. The indices m and n independently of one another may assume the value 2 or 3.

Abstract: Mixed esters comprising the reaction product ofa) an aliphatic, cycloaliphatic and/or aromatic C.sub.2 -C.sub.22 -dicarboxylic acid containing up to 2 hydroxyl groups, or a mixture thereof;b) an aliphatic polyol containing from 3 to 6 hydroxyl groups or a mixture thereof; andc) an aliphatic C.sub.2 -C.sub.32 -monocarboxylic acid containing up to 2 hydroxyl groups, or a mixture thereof;wherein the molar ratio of components a) and b) is approximately n-1:n, wherein n is an integer of from 6 to 15, and component c) is selected so that at least one free hydroxyl group is present per molecule of the mixed ester, are useful as lubricants for the molding of thermoplastic plastics, especially polyvinyl chloride homopolymers or copolymers.

Abstract: The invention relates to a process for the flotation of fillers from deinked wastepaper in the presence of organic phosphoric acid esters. The flotation of the fillers occurs after deinking the wastepaper by flotation.

Abstract: Invert emulsion muds for drilling of gas and oil, which are environmentally safe, and which contain:A. a continuous oil phase composed predominantly of at least one monocarboxylic acid ester of a C.sub.2 -C.sub.12 monofunctional alkanol wherein the monocarboxylic acid contains from 16 to 24 carbon atoms and is olefinically mono- or poly-unsaturated,B. a disperse aqeuous phase,C. at least one emulsifier,D. at least one weighting agent,E. at least one fluid loss additive, andF. a mild alkaline reserve.

Abstract: The invention relates to a process for preparing stable low-viscosity O/W rust-inhibiting emulsions, characterized in that a mixture having the following composition is employed for the formation of the emulsion:a) from 10 to 60% by weight of an oil component;b) from 1 to 10% by weight of an emulsifier component consisting of at least one addition product of from 2 to 20 moles of ethylene oxide to fatty alcohols having from 10 to 22 carbon atoms;c) from 1 to 10% by weight of a corrosion inhibitor consisting of at least one carboxylic acid having the general formula (I):R--COOH (I),wherein R represents a straight-chain or branched saturated or unsaturated alkyl moiety comprising from 6 to 22 carbon atoms or a moiety having the general formula (II): ##STR1## wherein R.sup.

Abstract: Process for the preparation of .alpha.-alkyl lactones by the steps of first reacting an .alpha.-acyl lactone, an aldehyde, and an alkali metal hydroxide together to form an .alpha.-alkylidene lactone, and then hydrogenating the .alpha.-alkylidene lactone.

Abstract: A two-layer, vibration-absorbing and anti-corrosive, abrasion-resistant coating for rigid substrates, in particular for sheet metals in the underbody region of motor vehicles, for reducing the noise caused by impacting particles, comprises an inner layer, facing the substrate, of a polymer A and a plasticizer P.sub.1, and a covering layer of a polymer B and a plasticizer P.sub.2, such that either the polymers A and B have a different chemical composition and the polymer A is essentially incompatible with the plasticizer P.sub.2 and the polymer B is essentially incompatible with the plasticizer P.sub.1, or both layers contain essentially the same concentration of one plasticizer (P.sub.1 =P.sub.2), so that there is no risk of one layer being impaired by the plasticizer from the other layer.

Abstract: A device for taking up fluids likely to foam, especially emulsions, with a suction system having a suction pipe through which the fluid is taken up at one end, the suction pipe having an aperture at the end thereof, and a first container attached at the one end of the suction pipe, the container of which opens upwards in the operative position of the device which is so arranged that, in the operative position, only the fluid inside the container may be taken up by the suction pipe, the container having at least one aperture in its wall that lies, in the operative position, partly beneath the fluid surface, and with a float for positioning an edge of the container, in the operative position, above the fluid surface, in which there is a second external container surrounding the first container which also opens upwards in the operative position of the device and is so arranged that, in the operative position, only the fluid inside the outer container flows into the inner container and which has in its wall at le

Abstract: In a process for processing waste paper, aqueous suspensions of pulp are treated with cationic layer compounds precipitated in situ. The separated printing inks, fillers and/or unwanted substances are then removed from the fibrous suspensions in a known manner by flotation or washing out.

Abstract: Seal coating compositions and method of applying same, to metallic surfaces, particularly aluminum or alloys thereof, containing a previously formed protective coating on the metal surface, to provide for improved corrosion resistance beyond that provided by the previously formed protective coating. Aqueous solutions of the seal coating components are applied to the metal surface containing the previously formed coating which is subsequently rinsed and dried to provide metal articles having improved resistance to corrosion.

Abstract: A highly effective deoxidizer/desmutter for aluminum surfaces, particularly those of high silicon aluminum alloys, is an aqueous solution containing an oxidizing inorganic acid, phosphoric and sulfuric acids, simple and complex fluoride ions, an organic carboxylic acid having from 1-10 carbon atoms, and manganese in its +4 oxidation state.

Abstract: A process for the separation, by sedimentation, of at least one liquid organic component dispersed in a liquid containing mainly organic materials, this organic component and the remaining liquid exhibiting a difference in density. In order to reduce considerably the standing time, it is proposed that the liquid be passed before sedimentation through a fiber bed that the organic component and the remaining liquid have different surface tensions with respect to the fiber bed, that the temperature of the liquid and the concentration of the organic component to be separated are such that, in the equilibrium state, at least two liquid phases form, and that the rate of flow of the liquid through the fiber bed lies below a maximum value dependent on the surface tension of the organic component with respect of the fiber bed and on the difference in density and surface tension between the remaining liquid and the organic component.

Abstract: In the cleaning and disinfection of endoscopes, the endoscope surfaces to be cleaned are successivelya) brought into contact with a cleaning solution which is heated to 55.degree. to 65.degree. C., kept at that temperature for 1 to 15 minutes and then drained off and which contains a low-foam nonionic surfactant, a proteolytic enzyme, at least one complexing agent and, optionally, other standard detergent constituents, and has a pH value of from 6 to 8;b) brought into contact with a disinfectant solution which is heated to 55.degree. to 65.degree. C., kept at that temperature for 1 to 15 minutes and then separated off and which contains an aldehyde selected from the group consisting of formaldehyde and aliphatic C.sub.2 -C.sub.8 dialdehydes and at least one complexing agent, and has a pH value of from 6 to 8;c) washed at least twice with water of which the pH value is adjusted to pH 6-8, the water being heated to 55.degree. to 65.degree. C.

Abstract: A method of suppressing the generation or persistence of dust is provided. An aqueous composition of a higher alkyl glycoside is placed in contact with a friable solid material (e.g. coal) to suppress the generation of dust thereform. The alkyl glycoside is generally present in the aqueous composition at a level of from about 0.001% by weight to about 1% by weight of the aqueous composition. Because of the nature of this particular use, highly colored compositions can be employed in the method. A composition used as a dust suppressant comprised of a higher alkyl glycoside and a hydrophilic binder material is also provided.

Abstract: According to the invention, wastepaper is refined in the presence of alkoxylation products obtainable by reaction of alkylene oxides with C.sub.10-22 carboxylic acid derivatives and/or C.sub.10-22 carboxylic acids containing carboxylic acid residues with at least one OH group in the 9, 10, 13 and/or 14 position and the detached printing ink particles are subsequently removed from the paper stock suspensions by flotation or washing.

Abstract: The invention is a cement, water containing composition containing an organic polyglycoside. The composition has at least one of an increased air entraining capacity, a reduced viscosity and a retarded setting time.

Abstract: A unit consisting of a cartridge provided with a base plate displaceable under pressure is used for the program-controlled dosing of paste-form detergents. The orifice of the cartridge leads into the dispensing compartment of the washing machine, more particularly into the region of a spray jet or into a region of high turbulence of the inflowing water. The detergent paste consists of nonionic surfactants liquid at temperature below 10.degree. C. or mixtures thereof and, suspended therein, builder salts and washing alkalis having a particle size in the range from 5 to 40 .mu.m.