Abstract: In the process described, cyclic polyimino ethers with .DELTA..sup.2 -oxazoline or .DELTA..sup.2 -5,6-dihydro-4H-1,3-oxazine structure are applied, alone or together with cyclic monoimino ethers of the same type, or with lactones, plus cationic polymerization catalysts, to solid surfaces and polymerized by heating. The process gives smooth, glossy coatings with high adhesive strength, hardness, and elasticity.

Abstract: The invention relates to a process for the removal of fillers from waste paper, after floatation of the printing ink, in the presence of at least partly water-soluble polymers and/or copolymers having number average molecular weights of 1,000 to 500,000 by flotation.

Abstract: A process is disclosed for the hydrothermal production of potassium silicate solutions with high SiO.sub.2 :K.sub.2 O molar ratios, by the hydrothermal reaction of quartz sand with aqueous potassium hydroxide solutions at temperatures in the range of 150.degree. to 300.degree. C. at the pressures of saturated water vapor corresponding to these temperatures in a pressure reactor, which is characterized in that the potassium silicate solutions obtained thereby, which have SiO.sub.2 :K.sub.2 O molar ratios of less than 2.75:1, are then reacted with a quartz tempered at temperatures in the range of over 1100.degree. C. up to melting point, the temperatures and pressures also being maintained in the ranges named.

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: 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: 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: 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: The invention relates to a surface treatment composition and a method of using the composition to provide the treated surface with a suitable surface conductivity for electrostatic painting of the surface. The surface treatment composition preferably comprises a mixture of: (a) a substituted or unsubstituted aromatic polycarboxylic acid, anhydride or salt thereof, and (b) a quaternary ammonium salt or (b') an ethoxylated tertiary fatty amine, in a compatible vehicle, said composition having a pH of below about 4.5, said polycarboxylic acid and said quaternary ammonium salt or ethoxylated fatty amine each being present in said composition in an amount effective to impart to said thermoplastic surface a resistivity value of between about 10.sup.8 ohms/cm.sup.2 and about 10.sup.12 ohms/cm.sup.2, or a 90% electrostatic charge decay time of less than five seconds, or both.

Abstract: Method for producing alkali metal silicates from crystalline siliceous material and aqueous alkali metal hydroxide solution at high temperature and normal pressure, characterized in that cristobalite and/or tempered quartz sand are used as the siliceous material, and this material is reacted with aqueous, 20 to 50 wt. % sodium or potassium hydroxide solution at temperatures of 100.degree. to 150.degree. C. and normal pressure, the molar ratio of SiO.sub.2 to Na.sub.2 O or K.sub.2 O in the reaction mixture being between 2:1 and 1:7.

Abstract: Magnesium on steel, zinc, aluminum and/or the alloys thereof by spraying, spray-immersion and/or immersion with an aqueous solution.

Abstract: This invention concerns polyiminoethers of general formula (I) in which A is an aliphatic, aromatic or araliphatic group containing 4 to 40 carbon atoms and n free valencies at various carbon atoms, x may assume values of 0 to 40, n has a value of 2, 3 or 4, Z is either a direct bond or the group CR.sup.5 R.sup.6, the substituents R.sup.1 to R.sup.6 independently of one another are H, alkyl or aryl containing up 8 carbon atoms, the substituent R.sup.7 is hydrogen, methyl or ethyl and Q is a phenylene group, which may be substituted by one or two methyl groups, or the group --CHR--M--, where R is selected from the group consisting of H, alkyl or alkenyl and M is selected from the group consisting of alkylene, alkenylene, arylene and alkarylene, and the parts R and M of the molecule independently of one another contain 0 to 12 carbon atoms and, in addition, may be substituted by a C.sub.1-3 alkoxy group. These compounds are made from polyisocyanates of formula A(NCO).sub.

Abstract: In the process disclosed, medical molding materials are treated with an aqueous solution of a disinfectant which contains, in addition, 0.1 to 15 wt.% of a soluble alcohol. This ensures high dimensional stability and good surface quality of the mold, even in the case of critical molding materials as alginates.

Abstract: In this process, cyclic polyimino ethers with a .DELTA..sup.2 -oxazoline or .DELTA..sup.2 -5,6-dihydro-4H-1,3-oxazine structure are polymerized by heating them alone or together with cyclic monoimino ethers of the same type, or with lactones, plus cationic polymerization catalysts. The new polymers are suitable for use as raw materials, foil materials, molding materials and hot-setting adhesives.

Abstract: Described are mouth and dental care preparations with improved action against the formation of plaque and containing as their active ingredients sulfophosphoric acid salts of the formula (I): ##STR1## in which R.sup.1 and R.sup.2, independently of each other, are hydrogen, or the cation M.sup.(+) and R.sup.2 together form the group(OC.sub.n H.sub.2n).sub.x --O--R.sup.3 --SO.sub.3.sup.(-) M.sup.(+),R.sup.3 is an alkylene, hydroxyalkylene or alkenylene group with 8-22 C-atoms, n=2 or 3, x=0 or a number between 1 and 30 and M.sup.(+) is an alkali metal ion, the ammonium ion or a mono-, di- or trialkanolammonium ion with 2-4 C-atoms in the alkanol group. The preparations inhibit in vitro the dissolution and crystal growth of hydroxyapatite.

Abstract: Toothpastes which contain 10-60 wt. % of polishing agents, 2-20 wt. % of humectants, 0.5-5 wt. % of water-soluble consistency regulators and 0.05-0.5 wt. % of antimicrobial biguanides, as well as 1-5 wt. % of other additives from the group of surface-active substances, aromatic oils, and sweeteners, have a particularly high biguanide availability if the polishing agent consists mainly of calcium carbonate, the consistency regulators are non-ionic polysaccharide derivatives and the surface-active substances are cationic surfactants with a linear alkyl group containing 12-18 carbon atoms and one or two tertiary amino groups or quaternary ammonium groups. Optionally a non-ionogenic solubilizer for the aromatic oil may also be present in the toothpastes.

Abstract: The adhesion and/or corrosion resistance of a autodeposited coating can be improved by rinsing the uncured coating with an aqueous treatment solution that has a pH between 7 and 11 and contains between 0.05 and 5 w/o of anions derived from phosphonic acids, preferably anions of 1-hydroxyethylidene-1,1-diphosphonic acid. The method is particularly useful on leaf springs and other metallic objects with surfaces of high carbon and/or shot blasted steel, and is particularly useful in conjunction with an autodeposition bath containing internally stabilized poly (vinylidene chloride) latex, hydrofluoric acid, ferric fluoride, and hydrogen peroxide.

Abstract: Radiation curable compositions containing outstanding reactive diluents have been developed. The diluents are lower alkyl ether acrylates and methacrylates of particular alkoxylated and non-alkoxylated polyols.Examples are mono-methoxy trimethylolpropane diacrylate, mono-methoxy neopentyl glycol monoacrylate and mono-methoxy, ethoxylated neopentyl glycol monoacrylate having an average of about two moles of ethylene oxide.

Abstract: An improved device for continuous application of a hair dye to a person's hair, without wetting the scalp, incorporates a hair dye reservoir consisting of a first porous material within a housing and teeth made of a second porous material, inserted into the first porous material and in capillary connection with it. The teeth in the surface area of their free ends are free from open pores, and the main pore direction of both the second porous material of the teeth and the first porous material of the reservoir is essentially parallel in the same direction as the longitudinal direction of the teeth. The first porous material of the reservoir extends over several times the penetration depth of the teeth in the penetration direction, and the pore size in the teeth is smaller than in the remainder of the reservoir.

Abstract: Heat curable adhesives, based on polybutadiene containing hydroxyl groups, which have a content of (a) polybutadiene having a number average molecular weight of from about 1000 to 3500 and OH values in the range from about 20 to 100; (b) blocked multi-isocyanates, (c) sulfur and (d) conventional vulcanization accelerators, an which may also contain conventional, especially mineral, fillers, pigments and/or auxiliaries, show good elasticity behavior and high tensile shear strength after curing and have a relatively low viscosity favorable for processing before curing.

Abstract: Compositions for coating steel wire to facilitate the cold drawing thereof comprising:A. from about 50 to about 99.9% by weight of K.sub.2 SO.sub.4 ;B. from about 0 to about 49.99% by weight of K.sub.2 B.sub.4 O.sub.7 and/or KBO.sub.2 ; andC. from about 0.01 to about 5% by weight of an ammonium and/or a potassium soap; wherein up to 50% by weight of the total potassium plus ammonium ions in the composition can be replaced by sodium ions. These compositions form coatings which have good crystalline structure and drawability with low hygroscopicity.