Abstract: Process for the preparation of 2,4,5-trichloropyrimidine, characterized in that compounds of the formula ##STR1## wherein R a radical which can be split off under the reaction conditions andR' an optionally substituted lower alkyl radical,Are reacted at temperatures from 0.degree. to 50.degree. C. with less than 7.5 mols of chlorine, in particular 3.5 to 7.0 mols of chlorine, and the reaction products are then after-heated to temperatures of 100.degree.-150.degree. C., in particular 110.degree.-140.degree. C., in the absence of chlorine.

Abstract: Use of the dyestuffs of the formula ##STR1## wherein R, Y and X have the meaning given in the description, for the dyeing of synthetic textiles, especially those of aromatic polyesters, by the transfer printing process.Prints obtained are distinguished by good fastness in use properties.

Abstract: Water-soluble polyamines which (a) have an average molecular weight of above 1,000, (b) contain at least one grouping of the formula-- R -- Zin whichZ denotes a --COOH or --SO.sub.

Abstract: The compounds of the formula ##STR1## WHEREIN X and Y denote halogen, hydroxyl, amino, alkoxy, aralkyloxy, cycloalkoxy, aryloxy, alkylmercapto, arylmercapto, alkylamino, dialkylamino, morpholino, piperidino, piperazino, pyrrolidino, acylamino, arylamino or alkyl,N denotes 0, 1 or 2 andQ denotes hydrogen, pyrazol-1-yl, oxazol-2-yl, benzoxazol-2-yl, naphthoxazol-2-yl, 1,2,4-oxadiazol-5-yl, 1,3,4-oxadiazol-2-yl, isoxazol-3-yl, isoxazol-5-yl, thiazol-2-yl, benzthiazol-2-yl, 1,3,4-thiadiazol-2-yl, imidazol-2-yl, benzimidazol-2-yl, 1,2,3-triazol-2-yl, 1,2,3-triazol-4-yl, 1,2,4-triazol-3-yl, 1,2,4-triazol-5-yl, 2 H-benzotriazol-2-yl, 2 H-naphthotriazol-2-yl, benzo[b]-furan-2-yl, naphtho[2,1-b]-furan-2-yl, benzo[b]-thiophen-2-yl, naphtho[2,1-b]-thiophen-2-yl, pyrimidin-2-yl, pyrridin-2-yl, quinazolin-4-yl or quinazolin-2-yl, if n is 1 or 2, or denotes naphthyl-, stilben-4-yl-, benzo[b]-furan-6-yl, dibenzofuran-3-yl-, dibenzofuran-2-yl, quinoxalin-6-yl-, quinazolin-6-yl- or 2 H-benzotriazol-5-yl, if n is 0,It being po

Abstract: The invention is related to a process for the stretch-texturing of high-molecular weight linear synthetic endless filaments travelling at speeds of 300 to 1200 meters per minute by continuously guiding the filaments through a delivery zone, a heat-fixing zone, a false-twister and a stretching godet. The endless filaments are passed through a stretching zone S 55 to 180 cm long, defined by the distance between the delivery stage and the stretching godet, the distance between the delivery stage and the false-twister inlet amounting to S-X cm and the distance X between the false-twister outlet and the stretching godet being 5 to 30 cm.

Abstract: The invention relates to a bi-component filament or fibre of a fibre-forming synthetic polymer having a core/sheath structure in at least one component and having a moisture absorption of at least 1.5% at 65% relative atmospheric humidity and at a temperature of 21.degree. C. and a moisture absorption of at least 5% at 90% relative atmospheric humidity and 21.degree. C. and a water-retention-power of at least 10% as well as to a process for the production thereof.

Abstract: The invention relates to the preparation of concentrated solutions of azo dyestuffs containing ionic groups, by precipitating during the diazotization and/or coupling reaction and/or after the coupling reaction the foreign ions which lower the solubility of the dyestuffs and separating off these ions as sparingly soluble salts.In this way dyestuff solutions which are stable to storage at room temperature and have a dyestuff content of 10 to 50 percent by weight are obtained.

Abstract: Disperse dyestuffs of the formula ##STR1## wherein Z represents an optionally substituted hydrocarbon radical,The azo group is in the meta-position or para-position relative to the amino group of the disphenylamine and the radical --OSO.sub.2 Z is in the ortho-position or para-position relative to the azo group.The rings A, B and D can be further substituted.The dyestuffs are suitable for dyeing synthetic fibre materials, especially polyesters, which are dyed in yellow to orange-red shades of good tinctorial strength and with good fastness properties in use, such as, for example, fastness to light and wet processing.

Abstract: The invention relates to antistatic polyamide compositions comprising a polyamide and as an antistatic agent from 0.1 to 20%, preferably from 1.5 to 15%, by weight based on the total weight of the composition of urethanes with ether groups. The urethanes with ether groups are stable in melts of aliphatic polyamides for prolonged periods at temperatures of up to about 300.degree. C. and filaments and fibers of such polyamides or woven fabrics, knitted fabrics, non-woven or pile fabrics produced from these filaments or fibers show outstanding antistatic properties.

Abstract: Process for the preparation of triazines containing a mixture of chlorine and fluorine substituents, characterized in that cyanuric chloride is heated with cyanuric fluoride to temperatures from 30.degree.-300.degree. C. in the presence of suitable catalysts.

Abstract: A method of inhibiting or reducing the irritation of skin resulting from allergic contact dermatitis, caused by contact with natural or synthetic allergenic agents, e.g. poison ivy, and dinitrochlorobenzene, respectively, is described. The method comprises applying to the skin an irritating reducing effective amount of a protective agent which is an organic compound having at least two polar groups, e.g. carboxyl groups, separated by a chain of at least 15 atoms the majority of which are carbon atoms and optionally containing a cyclic moiety of at least 5 atoms, prior to contact of the skin with the allergenic agent. The protective agent may be combined in a pharmacologically acceptable base for application to the skin.

Abstract: Monoazo dyestuffs of the formula ##STR1## wherein K represents the radical of a couping component K-H of the formula ##STR2## said dyestuff being suitable for the dyeing of synthetic fibre materials especially those from polyamides.

Abstract: A hand tool of the kind comprising a pointed edge or blade, and a cover protecting the latter in the non-operative position thereof but intended to be swung away to expose the point in the operative position of the tool. Means are arranged to lock the cover to prevent it from being inadvertently moved to the point-exposing position but to allow the cover to be swung away readily to expose the point by using one hand only, when the point is to be used.

Abstract: Trisaminopyridines of the formula ##STR1## are prepared by reacting a pyridinium salt of the formula ##STR2## with an organic amine having the formula R.sub.3 NH.sub.2 at a temperature of 110.degree. C. to 130.degree. C.;in whichX is --CN, --CONQ.sub.1 Q.sub.2 or --COOQ.sub.3 ;R is substituted or unsubstituted alkyl, cycloalkyl, aralkyl, or aryl;R.sub.1 is substituted or unsubstituted alkyl, aralkyl or aryl;Q.sub.1 and Q.sub.2 independently of one another are hydrogen, alkyl, cycloalkyl, aralkyl or aryl; or conjointly with the nitrogen atom form a 5-membered or 6-membered heterocyclic structure; andQ.sub.3 is alkyl or aralkyl.Where X is --CONQ.sub.1 Q.sub.2 or --COOQ.sub.3, the --CN group in the starting pyridinium salt is subsequently converted in the known manner to --CONQ.sub.1 Q.sub.2 or --COOQ.sub.3. The trisaminopyridines are useful as intermediates for preparation of azo dyestuffs by coupling with diazo components in the known manner.

Abstract: This invention relates to permanently stabilized polymers containing substituted piperidine derivatives chemically attached to the polymer molecule through O- or N-atoms. Compounds based on 2,2,6,6-tetraalkyl piperidines have now been found which, on the one hand, have a very high stabilizing activity and, on the other hand, contain one or more reactive groups through which they are able to react with the polymers to be stabilized. Stabilized polymers, preferably polyurethane elastomer filaments, films and coatings with a permanent washing-resistant, boiling resistant, acid-resistant, dry-cleaning-resistant and solvent-resistant stabilization based on 2,2,6,6-tetraalkyl piperidine light stabilizers are thus obtained.

Abstract: Process for the production of solutions of segmented self-crosslinkable polyurethanes by incorporating in the polymer chain segments of the general formulaM--CO--NH--D'--NH--CO--A,wherein D' is the divalent residue of an organic diisocyanate; M is a diol containing residue derived by reaction of the active N-hydrogen of an aminodiol or a hydrazinodiol which contains a primary or secondary amino group, with an isocyanate group; and A is an isocyanate masking group.

Abstract: Anthraquinone dyestuffs of the general formula ##STR1## wherein IN EACH OF THE TWO ANTHRAQUINONE RADICALS SUBSTITUTED BY X, one X denotes chlorine and the other denotes hydrogen andR represents hydrogen or an optionally substituted benzoylamino group,And mixtures of the dyestuffs, in which the constituents of the mixture are 6-chloroanthraquinone and 7-chloroanthraquinone derivatives are suitable as a vat dyestuff for the dyeing of cotton in strong brown color shades with excellent fastness to light and vat processing.

Abstract: Naphthostyril is obtained in high space/time yields by reacting 1-naphthyl isocyanate with an anhydrous aluminium halide in an inert solvent, carrying out the reaction in a homogeneous solution using 700-1.800 ml of solvent per mol of 1-naphthyl isocyanate in the temperature range from 140.degree.-160.degree. C. and -- after hydrolysis of the reaction mixture -- separating the phases. Naphthostyril is an intermediate for preparation of dyestuffs.

Abstract: Threading procedure in the texturing method for endless filaments in false-twist texturing machines comprising disc-type twisters.

Abstract: A process for printing and dyeing textile materials consists in treating in the absence of alkali, with an epoxide of the general formula ##STR1## IN WHICH Y represents a member for the completion of a 5-membered to 7-membered ring,R.sub.1 represnts a C.sub.1 -C.sub.4 -alkyl group or a C.sub.2 -C.sub.4 -alkyl group which is substituted by an OH group, preferably the methyl group,R.sub.2 represents hydrogen or methyl,X.sup.n(-) represents an anion andN represents 1, 2 or 3, and, after the latter has been fixed, in dyeing with an anionic dyestuff by known methods.