Abstract: Cosmetic preparations are prepared containing from 0.1 percent to 15 percent by weight of oxyethylated diphenylamines as sun screen agents.

Abstract: Dihydrothiophenecarboxylates of the formula ##STR1## where R.sup.1 and R.sup.2 have the meanings given in the description, are used for controlling undesirable plant growth.

Abstract: Self-extinguishing molding materials, comprising (A) a polymer of a vinyl-aromatic compound, especially a styrene polymer, which has been made impact-resistant (B) a polyphenylene ether and (C) a flameproofing additive, with or without (D) conventional additives, wherein one part of the soft component of the impact-resistant polymer of the vinyl-aromatic compound has a mean particle size of .ltoreq.1.5 .mu.m and the other part has a mean particle size of .ltoreq.3 .mu.m. Such molding materials not only have good self-extinguishing properties but also give moldings having a particularly uniform matt surface.

Abstract: A multi-stage reactor for hydrogenating coal slurry in a pressure vessel for pressures of up to 700 bar, preferably of up to 350 bar, with inlets for gas and coal slurry through the reactor bottom, an outlet for sludge, gases and vapors in the reactor top, and dividing trays in the pressure vessel, by means of which trays the individual reaction stages are separated from one another, wherein each dividing tray has a progressively reducing cross-section, with passage orifices, over its entire lower face, so as to prevent coal slurry caking onto the tray in the direction of flow of the reactants (gas and coal slurry).

Abstract: Molding materials containing high molecular weight polyphenylene ethers are produced by a process in which a solution of a polyphenylene ether in an organic solvent, together with another polymer, is freed of solvent by multi-stage evaporation.The solvent is preferably an aromatic compound from the class comprising the hydrocarbons, halohydrocarbons, ethers or esters, the ratio of the other polymer to the polyphenylene ether is advantageously from 99:1 to 20:80 parts by weight, the other polymer is, in particular, a homopolymer or copolymer of styrene or of a homolog thereof, which may be modified with rubber, and the multi-stage evaporation process preferably comprises not less than two and not more than four working up stages.The evaporation is carried out in general at from 120.degree. to 280.degree. C. and under a pressure of from 1 to 3,000 mbar, advantageously in the presence of assistants which reduce the partial pressure, eg. water and/or methanol.

Abstract: An improved process for the preparation of fiber-forming polycaprolactam by polymerizing .epsilon.-caprolactam, and an aqueous extract containing .epsilon.-caprolactam and caprolactam oligomers, which extract has been obtained by extracting polycaprolactam with water, wherein the aqueous extract contains from 0.1 to 5.0% by weight of oligomers of caprolactam, based on the monomeric caprolactam in the aqueous extract.

Abstract: .alpha.-Azolylglycols of the formula ##STR1## where R.sup.1 is alkyl, R.sup.2 is alkyl or unsubstituted or substituted phenyl or biphenyl, R.sup.3 is hydrogen, alkyl, alkenyl, alkynyl or unsubstituted or substituted benzyl and X is CH or N, their plant-tolerated salts and metal complexes, their preparation, and their use as plant growth regulators.

Abstract: A process for the preparation of methanol by reacting a gaseous mixture of carbon monoxide, carbon dioxide and hydrogen at an elevated temperature and under superatmospheric pressure over a catalyst which contains zinc, copper and aluminum, the catalyst being prepared from a co-crystalline material of the formulaCu.sub.2.2 Zn.sub.2.8 (OH).sub.6 (CO.sub.3).sub.2,containing aluminum hydroxide as a structual promoter, by calcination and reduction at from 160.degree. to 350.degree. C. The novel catalyst has the advantage of giving a substantially increased space-time yield and having a longer life.

Abstract: The invention relates to water-dispersible binders which are intended for cationic electropaints and are based on reaction products which are formed from modified epoxy resins and primary and/or secondary amines and which can, if desired, also contain crosslinking agents, pigments, flow-control agents and other customary auxiliaries.

Abstract: O-xylene and ethylbenzene are prepared by converting, 2,7-octadien-1-ol, 1,7-octadien-3-ol or mixtures containing these octadienols, or carboxylates of 2,7-octadien-1-ol or of 1,7-octadien-3-ol, or mixtures containing these carboxylates at from 200.degree. to 550.degree. C. over a catalyst.

Abstract: Carbonates are prepared by reacting carbamic acid esters with alcohols at above 140.degree. C., the ammonia formed being stripped from the reaction mixture during the reaction by passing an inert gas or vapor therethrough.The carbonates obtainable by the process of the invention are valuable starting materials for the preparation of dyes, crop protection agents and plastics.

Abstract: The subject invention relates to salts of polymaleic acids having a molecular weight between 200 and 1500 and to their use in preventing the corrosion of metal caused by hydrogen sulfide and carbon dioxide in water-in-oil emulsions such as crude oil.

Abstract: The subject invention relates to storage stable dispersions comprising certain aromatic polyesters dispersed in certain polyhydroxyl compounds and their process of preparation. The dispersions are useful for the preparation of polymers containing urethane and/or isocyanurate linkages.

Abstract: Polyether-ester polyols are prepared by reacting a crude polyether polyol, tetrahydrophthalic anhydride and an alkylene oxide. These polyols may be used in preparing polyrethane products.

Abstract: Salts of polymaleic acids, having molecular weights of from 200 to 1,500, with amines, of the formula ##STR1## where R.sup.1 and R.sup.2 are identical or different and each is hydrogen, C.sub.9 -C.sub.20 -alkyl or C.sub.9 -C.sub.20 -alkenyl and R.sup.3 is C.sub.9 -C.sub.20 -alkyl or C.sub.9 -C.sub.20 -alkenyl.

Abstract: A process for the preparation of .beta.-carotene micellar solutions, wherein a non-ionic emulsifier which is suitable for the preparation of micellar solutions is heated at from 160.degree. to 180.degree. C. and a total of from 20 to 30% by weight, based on the emulsifier, of .beta.-carotene is introduced in the presence of a conventional antioxidant, the hot homogeneous mixture is cooled rapidly to below 100.degree. C. by adding water, and the formulation is brought to the desired concentration of from 3 to 6% by weight by adding further water, and the .beta.-carotene micellar solutions obtained by this process. The non-ionic emulsifiers used in this process have an HLB value of from 12 to 16, and are in particular oxyethylated triglycerides of fatty acids of 12 to 18 carbon atoms containing 20-60 oxyethylene units. Parenteral admininstration of the stable .beta.-carotene micellar solutions according to the invention to cattle relieves the disturbed estrus cycle and impaired fertility caused by .beta.

Abstract: This invention relates to liquefied normally solid forms of polyoxyalkylene block copolymers particularly suitable for use in pesticide concentrates comprising a normally solid polyoxyalkylene block copolymer nonionic surface-active agent and an alkylene glycol having 3 to 5 carbon atoms with or without water.

Abstract: Sulfosiloxane-silicate copolymers are useful corrosion inhibitors in alcohol-based antifreeze compositions. The aliphatic sulfosiloxane-silicate copolymers contain repeating units derived from aliphatic sulfosiloxanes and water-soluble silicates.

Abstract: A process for the preparation of olefins from methanol and/or dimethyl ether by conversion in the presence of a zeolite catalyst, in particular a borosilicate zeolite, at elevated temperature, with the addition of a small amount of an electron donor.

Abstract: This invention relates to liquefied normally solid forms of polyoxyalkylene copolymers particularly suitable for use in pesticide concentrates prepared by dissolving a normally solid polyoxyalkylene copolymer nonionic surface active agent and an alkylene glycol having 2 or 3 to 5 carbon atoms with or without water at a temperature of at least 70.degree. C.