Abstract: Aryl sulfonic acid esters of the formula ##STR1## wherein R.sup.1 represents hydrogen, alkyl groups of 1 to 8 carbon atoms, bromine or chlorine, R.sup.2 represents R.sup.1 or the group ##STR2## Hal represents bromine or chlorine, x the numbers 2 to 4, n the numbers 3 to 5, y the numbers 4-x; m = 5-n, R.sup.3 represents bromine, chlorine or the group ##STR3## and Z represents --O--, --S--, ##STR4## alkylene with 1 to 4 carbon atoms, or alkylidene; a process for their product and their use as a flame retardant, especially for polyolefins.

Abstract: O-Alkyl-O-(6-alkanesulphonyloxy-pyrimidin(4)yl)-(thiono) (thiol) phosphoric (phosphonic) acid esters and ester-amides of the formula ##STR1## in which R and R.sup.3 each independently is alkyl,R.sup.1 is alkyl, alkoxy, alkylthio, alkylamino or phenyl,R.sup.2 is alkyl, alkoxy, alkylthio, alkylamino or hydrogen,R.sup.4 is hydrogen, halogen or alkyl, andX is oxygen or sulphur, which possess arthropodicidal properties.

Abstract: In a mop comprising a plurality of absorptive elements, a handle, and means joining said elements to said handle, the improvement wherein said absorptive elements comprise substantially flat strips of bonded nonwoven fabric, said strips ranging in width from about 5 to 60 mm, in length from about 15 to 60 cm and in thickness from about 0.5 to 3 mm. Binder may be printed onto the elements. The elements are flat and thus there is a greater area of contact with the surface being mopped. The elements may be joined into a round or elongate cross section mop by providing the elements with cuts through which a male member projects, the male member locking with a snap fit into a female member to which a mop handle is attached. Projections may be provided in the male and/or female members to immobilize the absorptive elements.

Abstract: Color photographic material is provided which contains at least one silver halide emulsion layer containing a yellow color coupler of the formula ##STR1## wherein G is the radical of a yellow coupler which is bonded to the heterocyclic ring by means of the active methylene group, Z is --CO-- or --SO.sub.2 --, M is hydrogen if Z is --CO--; or a substituent and R is hydrogen or a substituent.

Abstract: Process for the preparation of cycloaliphatic hydrocarbons by gas phase hydrogenation of aromatic hydrocarbons in the presence of palladium catalyst, characterized in that palladium catalyst is used which contains the palladium applied to a support which comprises aluminium oxide of which at least 20% by weight, relative to the weight of the support, has been converted to lithium-aluminium spinel. The gas phase hydrogenation can be carried out at atmospheric pressure.

Abstract: Electron beam vaporizer having a beam generator with a heated cathode, focusing means and electromagnetic deflection means for the deflection and guidance of the beam. An exchangeable, fluid-cooled and preferably rotatable vaporizing crucible associated with the beam generator and having at least one depression in the base thereof for at least one substance to be vaporized. The crucible has passages for the flow of a coolant beneath the depression and the base of the vaporizing crucible is constructed as separate components having a common contact surface so that a removable crucible head is formed. The crucible base is closed off from its environment with regard to the flow passages.

Abstract: A process for separating an aromatic hydrocarbon of the general formula ##STR1## wherein R represents an alkyl group having 1 to 3 carbon atoms andn is 0, 1, 2, or 3 (and wherein the groups R, when n is 2 or 3 can be the same or different),From a mixture comprising said compound and one or more aliphatic hydrocarbon, cycloaliphatic hydrocarbon, alcohol, ether, ketone or a carboxylic acid ester which comprises contacting said mixture with a polyurethane membrane.

Abstract: Window trim assembly of extruded plastic sections for mobile homes and the like, having a rear mounting base member and a front member having shade, drapery or valance mounting formations which is releasably coupled to the base member. The mounting base member has a base panel to be mounted against a building wall and an outwardly projecting mounting rib to be interfitted in a channel recess of the front member and held therein by interlocking teeth. Side jamb sections and a bottom section can be added.

Abstract: Polymerizable hydrox-group-containing diesters of acrylic acids for dental material are prepared by reacting 3-(3,4-epoxycyclohexyl)-8,9-epoxy-2,4-dioxaspiro(5,5) undecane or a bis-epoxide of formula (A) ##STR1## or a bis-epoxide of formula (B) ##STR2## with a hydroxyalkylacrylate or hydroxyalkylmethacrylate containing 2 to 10 carbon atoms in the alkyl portion, n being 0 or 1 in formula (A) with the proviso that whenn in 0, X is --O-- and R.sup.1 is --H; and whenn is 1, X is selected from the group of alkylene with 1 to 10 carbon atoms, C.sub.1-3 -alkyl substituted alkylene with 1 to 10 carbon atoms, --O--(CH.sub.2).sub.m --O-- where m is 1 to 10, --CH.sub.2 --OCO--(CH.sub.2).sub.p --COO--CH.sub.2 where p is 1 to 6, and --CH.sub.2 --OCO--, and R.sup.1 is --H or --CH.sub.3,and in formula (B) ##STR3## OR TRICYCLO-[5,2,1,0.sup.2,6 ]-DECYLENE.

Abstract: A process for the preparation of an amino-nitro-phenol by partial reduction of a polynitrophenol by contacting the polynitrophenol with an aqueous ammonia solution and a sulfide ion, the ammonia being present in an amount of 1 to 8 mols ammonia per mol of polynitrophenol and the sulfide being present in an amount of 2.5 to 6 mols sulfide ion per mol polynitrophenol, the process being conducted at a temperature of from room temperature to 100.degree. C.

Abstract: An unburnt refractory mass, which can be in the form of a brick, for use in vessels employed in metallurgical refining consisting essentially of chromium-ore, sintered magnesia and a carbon-containing binder, said mass consisting essentially of:75 to 95% by weight chromium ore having a Cr.sub.2 O.sub.3 content of at least 30% by weight;0 to 19% sintered magnesia poor in iron content; and2 to 7% hard pitch combined with 1.5 to 5% carbon so as to provide an overall residual carbon of 3 to 6%.

Abstract: A process for preparing a silicon-nitrogen compound of the formula (R.sub.3 Si).sub.n NR'.sub.3-n or R.sub.2 Si(NR'.sub.2).sub.2 or RSi(NR'.sub.2).sub.3 or cyclic --R.sub.2 SiNR'--.sub.x wherein n is 1 or 2 or 3, R' is a hydrogen atom or an alkyl moiety of 1 to 8 carbon atoms or aryl moiety, R represents an alkyl moiety of 1 to 20 carbon atoms or aryl moiety and x is 3 or 4, by contacting a hydrogen silane of the formula R.sub.4-y SiH.sub.y where y is 1 or 2 or 3 and R has the above-described meaning with an ammonia or an amine of the formula NR'.sub.3-n H.sub.n' where R' and n have the above meanings in the presence of a catalyst.

Abstract: A process of treating an aqueous liquor which has been used to scrub a hot raw gas produced by the gasification of a solid, liquid or gaseous fuel, which liquor has dissolved therein gaseous pollutant, comprising flashing said liquor from a temperature of at least 100.degree. C and a pressure of at least about 5 bars in at least on preliminary flashing stage to an intermediate pressure in the range of about 1.1 to 4 bars, separating the flashed-off gases containing the bulk of the pollutants from the residual aqueous liquor, and then flashing off the residual liquor to atmospheric pressure. The pollutant gas may contain H.sub.2 S and the gas product of the preliminary flashing can be fed to a Claus process for removing sulfur compounds.

Abstract: A process for the purification of phosphate containing impure gypsum to obtain therefrom calcium sulfate semihydrate in a purified form by digesting the phosphate containing gypsum with nitric acid at a temperature between 22.degree. and 100.degree. C, the temperature and nitric acid concentration being regulated such as to dissolve most of the phosphate impurities and to allow the recovery of calcium sulfate semihydrate.

Abstract: A high-temperature-resistant nonwoven fabric comprising synthetic fibers bonded to one another, said fibers comprising at least one polyaryl amide, polyaryl imide, polyaryl ester or polyaryl anhydride, said fibers being resistant to temperatures up to about 350.degree. C and being resistant to prolonged exposure to a temperature of at least 200.degree. C, is produced by bonding a suitable nonwoven web employing a solution containing a swelling agent and/or a bonding agent for the fiber. If a bonding agent is present, it is of substantially the same composition as the fiber and is precipitated or coagulated by treating the impregnated web with a liquid miscible with the solvent of the solution but which is a non-solvent for the bonding agent. The fabric is washed and dried and then preferably calendered at high temperature so that all the polymeric material is crystallized.

Abstract: In the preparation of a 2,2-dimethyl-3-(2',2'-dihalogenovinyl)-cyclopropane-1-carboxylic acid ester of the formula ##STR1## in which Hal is halogen, andR.sup.1 is alkyl with 1 to 4 carbon atoms, by heating a 2,2-dimethyl-3-(2',2'-dihalogenovinyl)-cyclopropane-1,1-dicarboxylic acid ester of the formula ##STR2## in an inert organic diluent, the improvement which comprises including a base in the diluent. Advantageously the base is 1,5-diazabicyclo[4.3.0]non-5-ene, 1,8-diazabicyclo[5.4.0]-undec-7-ene, triethylene diamine or quinuclidine and is employed in at least an equimolar amount with respect to the diester. The diluent is advantageously a hydrocarbon, a halogenated hydrocarbon or a high-boiling ether. The products are known intermediates for making insecticides.

Abstract: A flocculation, sedimentation, dehydration or retention composition comprising a stable dispersion of about 10 to 50% concentration by weight of a polymeric Mannich base in a mixture of water, a water-insoluble liquid and an emulsifier all present as a water-in-oil emulsion, the Mannich base comprising an NH-active polymer carrying carbonamide groups at least about 10% of which carry radicals of a reaction therewith of formaldehyde and a primary or secondary alkyl- or hydroxyalkyl-amine wherein the alkyl groups have up to about 18 carbon atoms, and a stabilizing amount of a water-soluble salt of a mono- or multivalent amine, alone or in admixture with a mono- or multivalent amine or ammonia, or of an ammonium salt of a mineral acid and ammonia, or of a carboxylic acid amide. The amine of the Mannich base is preferably dimethylamine or diethylamine and is used in approximately the same molar amount as the formaldehyde.

Abstract: Sulfonic acid-N'-methylamido-N'-sulfenyl-N-methyl-carbamic acid esters of the formula ##STR1## in which R.sup.1 is dialkylamino with 1-4 carbon atoms in each alkyl group, phenyl substituted in the o- or m-position by halogen or by alkyl with 1-4 carbon atoms, or phenyl substituted in the o-, m- or p-position by NO.sub.2, CF.sub.3 or CN, andR.sup.2 is phenyl, naphthyl, benzodioxolanyl or indanyl; phenyl, naphthyl, benzodioxolanyl or indanyl substituted by trihalogenomethyl, halogen, nitro, cyano, formamidino, dioxanyl or dioxolanyl, or by alkyl, alkenyl, alkynyl, alkoxy, alkenoxy, alkynoxy, alkylmercapto, alkenylmercapto or dialkylamino wherein each hydrocarbon portion has 1-4 carbon atoms; cycloalkyl of 5-7 carbon atoms, or ##STR2## in which R.sup.3 and R.sup.4 each independently is cyano or alkyl, alkoxy, alkylthio or alkoxycarbonyl with 1-4 carbon atoms in each alkyl group, or R.sup.3 and R.sup.4 together form a ring, or, provided that R.sup.1 is a NO.sub.2 -substituted phenyl, R.sup.

Abstract: A window composed of a frame having at least two, parallel disposed, spaced glass panes. At least one of the panes is composed of fire-resistant glass. The fire resistant pane can be a borosilicate or alumino silicate glass having a compressive prestress in the peripheral edge portion thereof, and for which the product of thermal expansion .alpha. and the elastic modulus E is 1-5 kp .times. cm.sup.-2 .times. .degree. C.sup.-1.

Abstract: O-Alkyl-O-[4-alkylpyrimidin(2)yl]-(thiono)-(thiol) phosphoric (phosphonic) acid esters of the formula ##STR1## in which R is alkyl with 1 to 9 carbon atoms,R.sub.1 is alkyl, alkoxy or alkylmercapto each with 1 to 6 carbon atoms, or phenyl,R.sub.2 is alkyl with 1 to 6 carbon atoms,R.sub.3 is hydrogen or halogen,R.sub.4 is halogen, thiocyanato or alkoxy, alkylmercapto or alkoxycarbonyl with 1 to 4 carbon atoms in each radical, andX is oxygen or sulfur, which possess insecticidal, acaricidal and nematocidal properties.