Abstract: A suspending agent-containing slurry is disclosed which comprises a dispersant and a particulate suspending agent having a particle size distribution in which the particle diameter at weight-cumulative 95%, from the minimum particle size, is 1 .mu.m or smaller. A method for efficiently producing the suspending agent-containing slurry is also disclosed. A process for suspension polymerization by use of the suspending agent-containing slurry is further disclosed. The slurry not only has such an excellent suspending ability in suspension polymerization that it enables the production of vinyl polymer beads having a narrow bead size distribution, but also is capable of retaining this ability over long and of exhibiting the same ability even when it has a high concentration. The suspension polymerization process enables vinyl polymer beads having a narrow bead size distribution to be produced efficiently due to the use of the slurry.

Abstract: Fungicidal mixtures, comprisinga) an oxime ether of the formula I ##STR1## where the substituents have the following meanings: X is oxygen or amino (NH);Y is CH or N;Z is oxygen, sulfur, amino (NH) or C.sub.1 -C.sub.4 -alkylamino (N--C.sub.1 -C.sub.4 -alkyl);R' is C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -haloalkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -haloalkenyl, C.sub.3 -C.sub.6 -alkynyl, C.sub.3 -C.sub.6 -haloalkynyl, C.sub.3 -C.sub.6 -Cycloalkylmethyl, or is benzyl which can be partially or fully halogenated and/or can have attached to it one to three of the following radicals: cyano, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy and C.sub.1 -C.sub.4 -alkylthio and/orb) a carbamate of the formula II ##STR2## where T is CH or N, n is 0, 1 or 2 and R is halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.

Abstract: In catalyst systems of the Ziegler-Natta type modified during their preparation and comprising as active constituentsa) a titanium-containing solid component which is obtained by reacting a compound of titanium with a compound of magnesium, a halogen, an inorganic oxide as support, a C.sub.1 -C.sub.8 -alkanol and a carboxylic ester as electron donor compound,and also as cocatalystb) an aluminum compound andc) if desired, a further electron donor compound,the titanium-containing solid component a) is prepared by first, in a first stage, admixing an inorganic oxide as support with a solution of a chlorine-free compound of magnesium in an inert solvent, stirring this mixture for from 0.5 to 5 hours at from 10 to 120.degree. C. and subsequently reacting it while stirring continually in an inert solvent with a C.sub.1 -C.sub.8 -alkanol in an at least 1.

Abstract: A process for the preparation of acetates of alcohols or phenols, in particular linalyl acetate, by causing alcohols or phenols to react with ketene in the presence of a catalyst, wherein the reaction is carried out using approximately equimolar amounts of linalool and ketene in the presence of a zinc salt of a carboxylic acid, or alternatively in the presence of a zinc compound which forms zinc acetate under the conditions of the reaction, and with vigorous mixing of the reaction mixture.Using this process, linalyl acetate and numerous other acetates interesting as perfumes or active agents can be obtained to a good degree of purity in yields of more than 90% of theory and in very good space-time yields.

Abstract: Bridged, methylolated bis-4,5-dihydroxyimidazolidin-2-ones conforming to the formula 1 ##STR1## where X=(CH.sub.2).sub.n where n=2, 3, 4, 5, 7, 8, 9 or 10, branched or cyclic alkyl, each with or without hetero atoms such as O,S, N, P in the alkyl chain,CH.sub.2 CH.sub.2 (--OCH.sub.2 CH.sub.2).sub.m,CH.sub.2 CH.sub.2 CH.sub.2 (--OCH.sub.2 CH.sub.2 CH.sub.2).sub.m,CH.sub.2 CH.sub.2 CH.sub.2 (--OCH.sub.2 CH.sub.2).sub.m OCH.sub.2 CH.sub.2 CH.sub.2),CH.sub.2 CH.sub.2 (--OCH.sub.2 CH.sub.2 CH.sub.2).sub.m OCH.sub.2 CH.sub.2,CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 (--OCH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2).sub.m,CH.sub.2 C(CH.sub.3)H(--OCH.sub.2 C(CH.sub.3)H).sub.m orCH.sub.2 CH.sub.2 CH.sub.2 (--OCH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2).sub.m OCH.sub.2 CH.sub.2 CH.sub.2,where m=0-7,andR.sup.1,R.sup.2 =H and/or CH.sub.2 OH, are prepared in one or two stages, the one-stage process also providing those where X=(CH.sub.2).sub.6, and are useful in textile finishing.

Abstract: A very pure aqueous solution of free hydroxylamine is prepared by a process in which the dilute, aqueous hydroxylamine solution is concentrated in a column by removing hydroxylamine-containing vapors via a side take-off in the bottom of the column, and very pure hydroxylamine is obtained by condensing the vapors. The novel process can be carried out simply, in a gentle manner and on a large scale and gives electronic grade hydroxylamine.

Abstract: A process for the catalytic reduction of NO.sub.x, the reduction taking place in the presence of a catalyst which comprises(a) from 20 to 97 wt % of A.sub.2 O.sub.3,(b) from 1 to 40 wt % of CuO,(c) from 1 to 50 wt % of ZnO,(d) from 1 to 40 wt % of Ag,(e) from 0 to 2 wt % of Pt,(f) from 0 to 20 wt % of oxides of rare earth metals, elements of the 3rd subgroup of the Periodic Table of the Elements or mixtures thereof,based on the total weight of the components (a) to (e), which adds up to 100 wt %, wherein, in each case, up to half the weight of the component (a) may be replaced by Fe.sub.2 O.sub.3, Cr.sub.2 O.sub.3, Ga.sub.2 O.sub.3 or mixtures thereof, of the component (b) by CoO, of the component (c) by MgO, of the component (d) by Au and of the component (e) by Pd, Ru, Os, Ir, Rh, Re or mixtures thereof, is used for reducing NO.sub.x, especially in combustion off-gases, the components (a), (b) and (c) forming a spinel which is doped with the components (d), (e) and (f).

Abstract: The production of open-celled porous inorganic sintered products comprises the stepsa) introducing a flowable mixture comprising an aqueous polymer dispersion, sinterable inorganic powder and dispersant into a precipitation bath in which the polymer precipitates or coagulates to form a non-flowable product comprising polymer, inorganic powder and dispersant,b) removing the product from the precipitation bath and drying the product,c) heating the product to remove polymer and dispersant and sintering the product.The porous open-celled sintered products comprising sintered inorganic powder have a pore volume of from 50 to 95%, a surface area of from 0.1 to 50 m.sup.2 /g and an at least bimodal pore size distribution having maxima in the ranges from 0.02 to 5 .mu.m and from 20 to 500 .mu.m.

Abstract: Hair setting lotion which are not subject to hydrolysis and which are made up ofA) 0.5-20% by weight of a nonionic or anionic homo- or copolymer of at least 70% by weight of N-vinylcaprolactam (polymer A), andB) 0.5-20% by weight of a further film-forming polymer (polymer B), selected from the group consisting of polyamides, polyurethanes, and homo- and copolymers of monoolefinically unsaturated monomers.

Abstract: NO.sub.x, where x is 1 and 2, in exhaust gases is reduced over heterogeneous catalysts with hydrocarbons, carbon monoxide, hydrogen or mixtures thereof in the presence of oxygen from 100 to 650.degree. C. and an absolute pressure of from 0.5 to 50 bar by a process in which the heterogeneous catalysts used are bimodal or polymodal compounds of the general formula IA.sub.1-x M.sub.2 O.sub.4 (I),which, if required, are doped with rare earth metals, noble metal, titanium, vanadium, molybdenum, tungsten or mixtures thereof, and whereA is magnesium, calcium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, tin or mixtures thereof,M is aluminum, gallium, indium, tin, chromium, manganese, iron, cobalt, nickel, copper, zinc or mixtures thereof andx is from 0 to 0.

Abstract: In a process for racemizing optically active amines by reacting the optically active amine in the presence of hydrogen and a hydrogenation or dehydrogenation catalyst at elevated temperature, the reaction is carried out in liquid phase and the catalyst comprises the catalytically active constituents copper, silver, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium and/or platinum and a support material selected from the group consisting of aluminum oxide, zirconium dioxide, titanium dioxide, carbon and/or oxygen compounds of silicon.

Abstract: The use of water-soluble quinacridones of the formula I ##STR1## where M.sup..sym. is a lithium, sodium, potassium or ammonium cation,R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently are hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, sulfamoyl, mono- or di-(C.sub.1 -C.sub.4)-alkylsulfamoyl, carbamoyl, mono- or di-(C.sub.1 -C.sub.4)-alkylcarbamoyl, unsubstituted or substituted mono- or diphenylsulfamoyl, unsubstituted or substituted mono- or diphenylcarbamoyl, halogen, nitro or cyano,n is 0, 1 or 2 andm is 0, 1 or 2 and the sum n+m is at least 1,for dyeing and printing natural and synthetic fiber material.

Abstract: Pyrimidyl phenyl and pyrimidyl benzyl ethers of the general formula I ##STR1## and their salts and N-oxides, where the substituents and indices have the following meanings:Q is (CO.sub.2 CH.sub.3).dbd.CHCH.sub.3, C(CO.sub.2 CH.sub.3).dbd.CHOCH.sub.3, C(CONHCH.sub.3).dbd.CHOCH.sub.3, C(CONH.sub.2).dbd.NOCH.sub.3, C(CONHCH.sub.3).dbd.NOCH.sub.3 or N(OCH.sub.3)--CO.sub.2 CH.sub.3 ;n is 0 or 1;R.sup.1 is hydrogen or an organic radical bonded via a carbon atom;R.sup.2 is hydrogen, cyano, halogen or an organic radical bonded via a carbon, oxygen, sulfur or nitrogen atom;R.sup.3 is hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.2 -haloalkyl;R.sup.4 is hydrogen, cyano, nitro, halogen or an organic radical bonded via a carbon, oxygen, sulfur or nitrogen atom;y is 0, 1, 2 or 3, it being possible for the radicals R.sup.5 to be different if y is 2 or 3;R.sup.5 is cyano, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl or C.sub.1 -C.sub.

Abstract: A process for producing cyclopentane and cyclopentene by fractional distillation of partly hydrogenated pyrolysis gasoline, in which(a) partly hydrogenated pyrolysis gasoline is fractionally distilled in a first distillation column,(b) a C.sub.5 hydrocarbon mixture containing at least 40% of cyclopentane and cyclopentene is taken off from the distillation column as a sidestream at a suitable tray, and(c) the C.sub.5 hydrocarbon mixture is further fractionally distilled into cyclopentane and cyclopentene in a second distillation column.

Abstract: Halides are removed from halide-containing nitrile mixtures by(a) thermally treating the halide-containing nitrile mixture,(b) subsequently adding a base to the thermally treated nitrile mixture and(c) subsequently separating off the base from the nitrile mixture.Amines are prepared by(A) reacting alkyl halides with metal cyanides in an at least two-phase reaction medium in the presence of halide-containing phase-transfer catalysts to give alkanenitriles,(B) separating off the resulting halide-containing alkanenitrile mixture phase and(C) further treating the halide-containing alkanenitrile mixture phase, as described in the stages(a)-(c) removing halides from halide-containing nitrile mixtures and(d) hydrogenating nitrites obtained in stage (c) to give amines, in the presence of suspended or fixed-bed catalysts.

Abstract: A process for hydrogenating a compound in the group of the imines or enamines I to an amine II in the presence of a nitrile III, said nitrile III being essentially not hydrogenated comprises reacting a mixture comprising a compound I and a nitrile III with a gas comprising molecular hydrogen in the presence of a catalyst IV.

Abstract: The present invention relates to cosmetic compositions comprising a combination of sunscreen filters of the formula ##STR1## with other sunscreen filters.

Abstract: Bicomponent fibers of different cross-sections may be formed without changing the geometry of the spinneret orifices. More specifically, at least two polymers are co-melt-spun through an orifice of fixed geometry so as to achieve a bicomponent fiber having a desired cross-section. In order to change to a bicomponent fiber having a cross-section which is different, therefore, at least one of (1) the differential relative viscosity, (2) the relative proportions of the first and/or second polymers, and (3) the cross-sectional bicomponent distribution of the first and second polymers, is changed. In such a manner, therefore, a wide variety of bicomponent fibers having different cross-sectional geometries may be produced without changing the fixed geometry orifice through which the polymers are co-melt-spun. Thus, bicomponent fiber cross-sections may be "engineered" to suit a variety of needs without necessarily shutting down production equipment in order to change spinnerets.

Abstract: The present invention provides a method of purifying an aqueous dye solution having an aldehyde and/or ketone impurity including a step of reacting the impurity with a hydrazine derivative, forming a water-insoluble hydrazone compound. The hydrazone compound is then removed from the solution to form a dye having an increased purity.

Abstract: Heterocyclic substituted benzoyl derivatives of the formula ##STR1## where Z is a 5-membered or 6-membered heterocyclic, saturated or unsaturated radical containing one to three hetero atoms selected from the group consisting of oxygen, sulfur and nitrogen, useful as intermediates for herbicidal compounds.