Abstract: An optical recording medium comprises a support material and a light-absorbing layer consisting essentially of a soluble mixture of a thermoplastic binder and at least one dye, wherein the thermoplastic binder is a phenol-aldehyde resin having an average molecular weight of greater than 300 which is soluble in an alcohol having a boiling point of less than 200.degree. C.

Abstract: Herbicide adjuvants are disclosed with enhance the effectiveness of a broad spectrum of postemergent herbicides. These adjuvants preferably contain a low foaming nonionic surfactant, an anionic surfactant, a lower alkanol ester of a fatty acid, and a hydrocarbon oil component.

Abstract: Hydroxybenzaldehydes of the formula (I) are prepared from a benzaldehyde of the formula (II) or its acetal, in which R.sup.1 in the R.sup.1 O-phenyl ether group is an alkyl, cycloalkyl, alkylcycloalkyl or alkylaryl radical, R.sup.2 is H or OH or is identical to R.sup.1 and one or more R.sup.1 O-phenyl ether groups are ortho, meta or para to the aldehyde function, by a process in which a benzaldehyde of the formula (II) or its acetal, in which R.sup.1 and R.sup.2 have the abovementioned meanings and one or more R.sup.1 O-phenyl ether groups occupy the abovementioned position with respect to the aldehyde function, is converted into a hydroxybenzaldehyde of the formula (I) in the presence of water over a zeolite as a heterogeneous catalyst. ##STR1## The catalysts used are, in particular, zeolites of the pentasil type.

Abstract: Benzopyrans of the formula ##STR1## where X is a radical ##STR2## and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and the ring A have the meanings stated in the description, a process for their preparation, and their use in pressure-sensitive or heat-sensitive layers.

Abstract: A stable, water-miscible emulsion comprises specific proportions of (a) a fat-soluble vitamin (b) a liquid, edible vegetable oil, (c) a modified lecithin (d) a sucrose ester (e) sorbitan monooleate (f) a sugar alcohol and (g) water. The emulsion has an average droplet size of from about 0.5 microns to about 8 microns. The emulsion does not separate into distinct phases upon standing for prolonged periods of time.

Abstract: Undesirable odors are removed from fatty ester mixtures which, in addition to other components, contain the esters of highly unsaturated fatty acids, in particular of highly unsaturated 3-fatty acids, such as eicosapentaenoic acid or docosahexaenoic acid, by a process in which the fatty ester mixture is treated with a complex hydride, in particular with sodium borohydride solution. The process is particularly suitable for removing undesirable odors from fatty ester mixtures obtained from fish oil, for example by transesterification with an alkanol of 1 to 3 carbon atoms.

Abstract: N-Arylpropyl-substituted secondary amines of the formula ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, alkyl, cycloalkyl, haloalkyl, alkoxy, chlorine, bromine or fluorine, m is 0, 1 or 2, R.sup.3 and R.sup.4 are each hydrogen or alkyl, and R.sup.5 is alkyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, alkenyl or an unsubstituted or substituted phenyl or phenylalkyl radical or methylfuran and the dashed bonds may be hydrogenated, and their salts, and fungicides containing these compounds.

Abstract: A stationary container equipped with an inlet and an outlet and filled with grinding medium encloses a drivable, rotatably mounted stirrer whose active surfaces are formed as impellers for the grinding medium which are closely adjacent to the inner surface of the container.

Abstract: Aqueous acidic cleaner formulations contain, as essential components,(a) from 1 to 20% by weight of one or more nonionic surfactants based on oxyalkylated fatty alcohols, fatty acids, fatty amines, fatty amides or alkane-sulfonamides,(b) from 0.1 to 15% by weight of one or more polyetherpolyols which are obtainable by reacting a dihydric to hexahydric alcohol of 2 to 10 carbon atoms with an alkylene oxide of 2 to 4 carbon atoms and reacting this product with a 1,2-alkylene oxide or alkyl or alkenyl glycidyl ether of 8 to 30 carbon atoms and(c) from 1 to 40% by weight of one or more acids.

Abstract: The novel dyes of the general formula I ##STR1## where X is hydrogen or C.sub.1-C.sub.4 -alkyl or is phenyl which is unsubstituted or substituted by fluorine, chlorine, bromine, methyl, methoxy or nitro, Y is cyano, a carboxylic ester group or nitro, Z is cyano, acetyl, benzoyl or unsubstituted or substituted carbamyl, or X and Z or Y and Z may simultaneously be a carboxylic ester group, and R.sup.1 and R.sup.2 independently of one another are each hydrogen or unsubstituted or substituted alkyl or aryl, are very useful for dyeing polyesters, polyester/cellulose blends or thermoplastics.

Abstract: 3,9-Dihydroxynonyne and its derivatives protected at the 9-OH function, of the general formula I ##STR1## where R is hydrogen or a conventional alcohol protective group, and processes for the preparation of the compounds I.

Abstract: Thermoplastic molding materials contain(A) from 5 to 95% by weight of a nylon and(B) from 5 to 95% by weight of a copolymer composed of(B.sub.1) from 50 to 99.9% by weight of a styrene of the general formula I ##STR1## where R.sup.1 is alkyl or 1 to 4 carbon atoms or hydrogen, R.sup.2 is alkyl of 1 to 6 carbon atoms or halogen and m is 0, 1, 2 or 3,(B.sub.2) from 0.1 to 30% by weight of a monomer containing epoxide groups (II) ##STR2## or of a monomer containing lactam groups (III) ##STR3## or of a monomer containing halobenzyl groups (IV) ##STR4## where R.sup.3 is a divalent, branched or straight-chain alkyl group of 2 to 15 carbon atoms, R.sup.4 is alkyl of not more than 6 carbon atoms, X is halogen, n is 1, 2 or 3 and r is 0, 1, 2 or 3, and(B.sub.3) from 0 to 48% by weight of further comonomers.

Abstract: Solvent dyes of the formula ##STR1## where ##STR2## R.sup.1 and R.sup.2 are each, independently of the other, hydrogen, methyl, ethyl, methoxy or ethoxy,n is 0 or 1 andk, if n is 0, is the radical of a coupling component of the pyrazolone series or, if n is 1, is the radical of a coupling component of the pyrazolone, 2-naphthol, hydroxyquinoline, aniline, naphthylamine, pyridone or 2,6-diaminopyridine series,R.sup.3 and R.sup.4 each independently of the other being C.sub.1 -C.sub.22 -alkyl which may be substituted or interrupted by oxygen, imino or C.sub.1 -C.sub.4 -alkylimino, subject to the proviso that COR has more than 8 carbon atoms, are very highly suitable for coloring organic substrates.

Abstract: A right parallelepiped cassette is provided with a guide insert as a separate housing part which can be produced and machined separately and very precisely, contains important guide elements of the cassette and can be oriented in a predetermined manner on reference surfaces of the remainder of the cassette housing and fastened thereon. In a particular embodiment, the cassette contains detachably fastened spacing elements for measuring the alignment of the guide elements. The cassette can advantageously be used for any type of recording media in tape or strip form.

Abstract: N-aminotriazole derivatives of the general formulae Ia and Ib ##STR1## wherein R.sup.1 and R.sup.2 are each C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.5 -C.sub.8 -cycloalkenyl, tetrahydropyranyl or norbornyl, or phenyl, biphenyl, naphthyl or pyridyl, and the aromatic radicals may carry from one to five halogen atoms and/or from one to three of the following groups: hydroxyl, phenoxy, nitro, amino, 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/or C.sub.1 -C.sub.4 -alkylthio, and their salts which are environmentally compatible and tolerated by crops.

Abstract: Woodworking materials having a lower subsequent formaldehyde emission can be prepared in an advantageous manner and with good resin reactivity and good strengths and swelling properties by mixing lignocellulose-containing particles, for example wood particles, with a curable binder based on curable aminoplast condensates and then pressing the mixture under the action of heat, a mixture A containing a water-compatible agent for binding formaldehyde being applied to or mixed with the particles before the latter are mixed with the curable binder, if the mixture A is an aqueous solution which has a pH of from 3.0 to 6.5 and contains(a) organic acids which attack wood only insignificantly, if at all, in an amount of more than 15% by weight, based on the solids content of the solution, preferably a mixture of aliphatic carboxylic acids of 4 to 10 carbon atoms, and(b) a formaldehyde-binding, nitrogen-containing compound, in particular urea.

Abstract: Caprolactam is prepared by heating a 6-aminocaproic ester in liquid phase in the presence of water to 230.degree.-350.degree. C. under superatmospheric pressure in a reaction medium comprising a liquid aromatic hydrocarbon having a boiling point of from 80.degree. to 240.degree. C. which is inert under reaction conditions, and isolating caprolactam from the reaction mixture.

Abstract: Caprolactam is prepared in a process comprising the following steps:(a) reacting the 5-formylvaleric ester with liquid ammonia as reaction medium and hydrogen in the presence of a ruthenium catalyst in liquid phase at from 80.degree. to 140.degree. C. under a hydrogen partial pressure of from 40 to 100 bar,(b) replacing the reaction medium ammonia by an aromatic hydrocarbon having a boiling point of from 80.degree. to 240.degree. C. which is liquid under the reaction conditions,(c) heating the resulting mixture in liquid phase under superatmospheric pressure at 230.degree.-350.degree. C. to form caprolactam, and(d) isolating caprolactam from the resulting reaction mixture.

Abstract: Thermoplastic molding materials contain(A) not less than 5% by weight of a polymer component consisting of from 50 to 10 % by weight by polyphenylene ethers and from 0 to 50% by weight of a styrene polymer differing from component (C),(B) not less than 5% by weight of a polyester,(C) not less than 0.1% by weight of a copolymer consisting of(C.sub.1) not less than 20% by weight of .alpha.-olefins of 2 to 8 carbon atoms, styrene or substituted styrenes of the general formula I ##STR1## where R and R.sup.1 is alkyl of 1 to 8 carbon atoms, hydrogen and/or halogen and n is 0, 1 or 2, or a mixture of these monomers,(C.sub.2) not less than 0.5% by weight of a polymerizable monomer containing epoxide groups,and/or(C.sub.3) not less than 0.05% by weight of a halobenzyl-containing polymerizable monomer having the structural unit (II) ##STR2## where X is halogen and R.sup.2 and R.sup.3 are each alkyl of 1 to 8 carbon atoms or hydrogen and n is 1, 2 or 3,and/or(C.sub.4) not less than 0.

Abstract: Octadienols are prepared by teleomerization of 1,3-butadiene with water in the presence of carbon dioxide and a catalyst system comprising a palladium compound and a tertiary phosphorus compound by performing the reaction in the presence of a strong non-coordinating acid.