Abstract: Caprolactam and hexamethylenediamine are prepared simultaneously starting from adiponitrile by a process in which(a) adiponitrile is partially hydrogenated to give a mixture containing essentially 6-aminocapronitrile, hexamethylenediamine, ammonia, adiponitrile and hexamethyleneimine,(b) the mixture obtained in (a) is subjected to a distillation to give ammonia as the top product and a bottom product I,(c) the bottom product I containing essentially 6-aminocapronitrile, hexamethylenediamine, adiponitrile, hexamethyleneimine, inert compound A and ammonia, the ammonia content being lower than that of the mixture used in stage (b), is subjected to a second distillation to give a mixture comprising the inert compound A and ammonia as the top product and a bottom product II,(d) the bottom product II is subjected, in a third column, to a distillation to give the inert compound A as the top product and a bottom product III,(e) the bottom product III is subjected, in a fourth column, to a distillation to give a top p

Abstract: Multiple (at least two) differently colored or colorable feed yarns are fed from their respective yarn packages to a multi-position interlacer manifold assembly. The feed yarns are maintained separate and apart from one another and are passed in this separated state through individual interlacer jets associated with the interlacer manifold assembly. The individual yarns are thereafter conveyed to a conventional yarn processing system (e.g., an apparatus known colloquially in the art as a "Gilbos" apparatus) where they are entangled with one another to provide a finished yarn in which the individual yarn components remain substantially coherent throughout the finished yarn. The individual interlaced yarns thus become entangled with one another when subjected to the yarn processing system without substantial inter-yarn blending or commingling occurring (which blending or commingling would thereby cause the constituent yarns to become nearly indistinguishable from one another).

Abstract: Saccharin derivatives of the formula I ##STR1## where the substituents have the following meanings: L and M are hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio, chlorine, cyano, methylsulfonyl, nitro or trifluoromethyl;Z is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.5 -alkynyl, C.sub.1 -C.sub.4 -acyl, benzyl or phenyl, the phenyl rings in each case being unsubstituted or substituted by halogen or C.sub.1 -C.sub.4 -alkyl;Q is a radical T-J, whereT is a carbonyl radical CO or the radical --CHY,J is a 4-linked isoxazole ring of the formula II ##STR2## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl andR.sup.2 is C.sub.1 -C.sub.4 -alkyl, cyclopropyl, 1-methylcyclopropyl or 1-methylthiocyclopropyl;Y is an OH group, a hydroxyl group which may be acylated by C.sub.2 -C.sub.4 -acyl or a chlorine atom;and agriculturally customary salts of the compounds I are described.

Abstract: A process for the preparation of alkyl esters of 0,0-dialkyl-4-phosphono-2-methyl-2-butenoic acid containing a high percentage of E isomers, wherein the corresponding alkyl esters of 2-hydroxy-2-methyl-3-butenoic acid are caused to react with PBr.sub.3 or PCl.sub.3 at temperatures ranging from 0.degree. to 80.degree. C. in the absence of pyridine and, if desired, the resulting mixture comprising predominantly alkyl esters of 4-halo-2-methyl-2-butenoic acid is caused to react with trialkyl esters of phosphorous acid at temperatures ranging from 70.degree. to 140.degree. C. The end products are desirable C.sub.5 building blocks for polyene syntheses or preceding stages.

Abstract: The invention provides polyurethane components and compositions capable of providing internal mold release properties in SRIM applications. The polyol composition of the invention has an isocyanate reactive polyol (A) having a number average molecular weight from 100 to about 10,000 and an effective amount of internal mold release composition (B) having a silicon-containing polymer (a) and an epoxidized ester (b). The invention further provides an SRIM polyurethane composition useful in the preparation of molded polyurethane articles having internal mold release properties, the composition comprising an isocyanate component (I) and the isocyanate reactive polyol composition (Component (II)) disclosed above. In another aspect of the invention, the invention provides methods of using the claimed compositions as well as the rigid cellular polyurethane SRIM articles resulting from such processes.

Abstract: Methine dyes of the formula I ##STR1## where R is hydrogen, unsubstituted or substituted C.sub.1 -C.sub.10 -alkyl or unsubstituted or substituted phenyl,X is nitrogen or a radical of the formula CQ.sup.1, CH.dbd.CQ.sup.1 --CH, CH.dbd.CH--CH.dbd.CH--CH, ##STR2## where Q.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl, chlorine or bromine and Q.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl, andY is a radical of the aniline, aminonaphthalene, indole, aminoquinoline, aminothiazole or aminothiophene series,the use thereof in nonlinear optics, and novel thiazole derivatives.

Abstract: N,N'-bridged bistetramethylpiperidinyl compounds of Formula I ##STR1## useful as light stabilizers and stabilizers for organic material which are prepared starting from tetramethylpiperidinyl compounds of Formula II ##STR2## by reacting a compound of Formula II with a cyclic carbonate of Formula III.

Abstract: Mixtures which contain silver with a particle diameter of from 0.001 to 5 .mu.m on a neutral or basic non-zeolite carrier oxide of elements of group IIa, IIIa, IIb, IIIb of the Periodic Table of the Elements, of the lanthanides or mixtures thereof, and a process for preparing these mixtures and antibiotic compositions which comprise these mixtures are described.

Abstract: The present invention relates to a method for increasing the flowability of spray dried vitamin powders having low vitamin concentrations and high concentrations of a maltodextrin carrier by coating said low concentration vitamin powders with hydrophobic silica.

Abstract: Polyoxyalkylene glycol monoethers of monohydric alcohols are prepared by a process in which tetrahydrofuran or a mixture of tetrahydrofuran with a total of not more than 95 mol %, based on the amount of tetrahydrofuran used, of one or more comonomers from the group consisting of the cyclic ethers and acetals is polymerized in the absence of water and in the presence of a monohydric alcohol and of an anhydrous heteropoly acid catalyst.

Abstract: A process is disclosed for the selective hydrogenation of butynediol to 2-butene-1,4-diol using a palladium catalyst to which either copper and zinc, or silver and zinc, or copper, silver and zinc are added as doping agents. In the preferred embodiment, it has been possible, by optimizing the composition of the catalyst, to improve the activity and selectivity of the catalysts in question while also eliminating the need to handle toxic substances during the catalyst manufacturing process.

Abstract: 2,3(1H,4H)-quinoxalinediones of the formula I ##STR1## where R.sup.1 is hydrogen, an aliphatic radical which has up to 12 carbons and can be substituted by one of the following: phenyl, cyclopentyl, cyclohexyl or --CO--R.sup.3, --CO--O--R.sup.3 or --CO--NH--R.sup.3, where R.sup.3 is hydrogen, C.sub.1 -C.sub.4 -alkyl, phenyl, benzyl or 1-phenylethyl,a cycloaliphatic radical with up to 12 carbons or phenyl, where the cyclic groups in R.sup.1 can have up to three of the following substituents: 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, halogen, nitro, cyano, --CO--O--R.sup.3 and --CO--NH--R.sup.3 ;R.sup.2 is 1-pyrrolyl which can have up to two of the following substituents: C.sub.1 -C.sub.4 -alkyl, phenyl, phenylsulfonyl, nitro, cyano and --CO--O--R.sup.3, --CO--NH--R.sup.3, --CH.sub.2 --O--R.sup.3, --O--R.sup.3 and --CH.dbd.NO--R.sup.3R radicals are identical or different and are the following: C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.

Abstract: The present invention relates to an aqueous powder coating dispersion based on epoxy resins and phenolic curing agents or carboxyl-containing polyesters for the coating of packaging containers, which dispersion consists of a solid, pulverulent component I and an aqueous component II, component I being a powder coating which containsA) at least one epoxy resin having an epoxide equivalent weight of from 300 to 5500 andB) at least one curing agent having more than one phenolic hydroxyl group per molecule and a hydroxyl equivalent weight, based on phenolic OH groups, of from 100 to 500, preferably from 200 to 300, orC) at least one polyester having an acid number of from 25 to 120 mg of KOH/g and an OH number >10 mg of KOH/g, andD) at least one epoxy resin having an epoxide equivalent weight of from 400 to 3000, and component II being the aqueous component of the dispersion which contains at least one nonionic or anionic thickener.

Abstract: Water-soluble or water-dispersible graft polymers which are obtainable by free-radical-initiated polymerization of(A) a monomer or monomer mixture comprising(a) from 20 to 100% by weight of acrylic acid or methacrylic acid or a mixture thereof or alkali metal, alkaline earth metal or ammonium salts thereof,(b) from 0 to 80% by weight of other monoethylenically unsaturated monomers which can be copolymerized with the monomers (a), and(c) from 0 to 5% by weight of monomers containing at least 2 ethylenically unsaturated, non-conjugated double bonds in the molecule,in the presence of proteins (B)in an A:B weight ratio of from (95 to 10):(5 to 90), are used as tanning agents for self-tanning, pretanning and assist tanning of pelts and skin pelts and for the retanning of leather and skin.

Abstract: Claimed are a method of making a direction indicating carpet, useful in temporarily unlighted building hallways and rooms. Symbols are tufted into the carpet using zinc sulfide copper activated pigments in concentration of 2% in the fiber.

Abstract: Hybrid genes comprising a nucleotide sequence encoding a preprocollagen signal sequence operatively linked to a nucleotide sequence encoding a heterologous protein are disclosed. The hybrid genes are useful for secretion of heterologous proteins from host cells. In a preferred embodiment, the signal sequence of the human preprocollagen .alpha.1(I) protein is linked to a heterologous protein of interest to allow for secretion of the protein from Hansenula polymorpha cells.

Abstract: The invention relates to water-dispersible binders for cationic electrocoating finishes, which binders are reaction products of(A) low molecular weight epoxide resins containing aromatic groups and having an epoxide equivalent weight of below 375,(B) aliphatic and/or alicyclic polyfunctional alcohols and/or carboxylic acids having a molecular weight of below 350,(C) if appropriate up to 60% by weight, relative to the total binder, of polyfunctional alcohols, carboxylic acids and/or SH compounds having a molecular weight of 500-5,000 and(D) primary, secondary and/or tertiary amines and/or salts thereof or a sulfide/acid mixture or a phosphine/acid mixture, the reaction product of A and B containing 10-45% of aromatic groups, calculated as the phenylene group. By means of the binders, a higher layer thickness is obtained in electrocoating.

Abstract: Mixtures of high molecular weight polyisobutylene and thermoplastic polymers are prepared in an extruder by a process in which meterable, high molecular weight polyisobutylene is first metered into the extruder and homogenized in at least one kneading stage, heated and subjected to controlled molecular weight degradation and the thermoplastic polymer is then introduced into the polyisobutylene melt by means of a side feed and is subsequently homogenized together with said melt. The novel process is particularly suitable for the preparation of mixtures of high molecualr weight polyisobutylene and polyethylene.

Abstract: Flameproofed thermoplastic molding materials containA) a thermoplastic polyester,B) decabromodiphenylethane,C) a metal oxide or metal sulfide or metal borate or a mixture thereof,D) an ester of at least one alcohol having at least 3 OH groups and one or more aliphatic mono- or dichaboxylic acids of 5 to 34 carbon atoms and optionally,E) by weight of conventional additives and processing assistants.