Abstract: A process for preparing 1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydronaphthalene of the formula I ##STR1## comprises reacting p-cymene of the formula II ##STR2## with a hexene of the formula IIIa, IIIb and/or IIIc ##STR3## in the presence of a catalytic amount of aluminum halide and a catalytic amount of a triphenylmethyl compound of the formula IV ##STR4## wherein R.sup.1, R.sup.2 and R.sup.3 are each, independently of one another, hydrogen, C.sub.1 -C.sub.4 -alkyl, nitro or halogen and X is hydrogen or halogen.

Abstract: N-Substituted 3-arylpyrrolidine derivatives of the formula ##STR1## where R.sup.1 is 2,2-dimethylpropyl, 3,3-dimethylbutyl, 4,4-dimethylpentyl, 2,4,4-trimethylpentyl, 6-methylhept-2-yl, 3,5,5-trimethylhexyl, 6,10-dimethylundec-2-yl, 3-methylcyclohexyl, 3,3-dimethylcyclohexyl, 3,3,5-trimethylcyclohexyl, 3,3,5,5-tetramethylcyclohexyl, 4-methylcyclohexyl, 4-ethylcyclohexyl, 4-propylcyclohexyl, 4-isopropylcyclohexyl, 4-tert.-butylcyclohexyl, trans-4-tert.-butylcyclohexyl, 4(2-methylbut-2-yl)cyclohexyl, 4(2,4,4-trimethylpent-2-yl)-cyclohexyl, cyclododecanyl, C.sub.3 -C.sub.9 -trialkylsilyl-substituted C.sub.4 -C.sub.12 -cycloalkyl, 4-hydroxycyclohexyl, 4-hydroxy-3-methylcyclohexyl, 4-hydroxy-3,5-dimethylcyclohexyl, 4-hydroxy-3,3-dimethylcyclohexyl, 4-hydroxy-3,3,5-trimethylcyclohexyl, unsubstituted or hydroxy-, C.sub.1 -C.sub.9 -alkyl-, C.sub.1 -C.sub.5 -alkoxy- or C.sub.3 -C.sub.9 -trialkylsilyl-substituted C.sub.5 -C.sub.12 -cycloalkenyl,R.sup.1 is further bicycloalkyl,R.sup.1 is further 4-tert.

Abstract: Pyridoneazo dyes of the formula ##STR1## where L is C.sub.2 - or C.sub.3 -alkylene, R is C.sub.1 -C.sub.3 -alkyl and n is 1, 2 or 3, are useful for dyeing polyester fabrics.

Abstract: A method of distinguishing two or more variant dye fibers in greige form is disclosed. The technique involves adding sufficient pigment to one of the fibers to make it visible to the eye.

Abstract: The invention relates to a process for the preparation of macromonomers which carry at least two hydroxyl groups at one end. The process comprises(1) reacting a polyester, polyether, polyurethane, polyurea or polyamide prepolymer which has a number average molecular weight of 300 to 3000, preferably 500 to 2000, and contains an average of one terminal hydroxyl or amino group and at least one carboxyl group per molecule with a diisocyanate to form an intermediate which contains an average of one terminal isocyanate group and at least one carboxyl group per molecule, and subsequently reacting this intermediate(2) with a compound which has a molecular weight of 90 to 800, preferably 120 to 300, and contains at least two hydroxyl groups in addition to a group which is reactive to isocyanate groups, to form a macromonomer which carries an average of at least one carboxyl group and, at one end, at least two hydroxyl groups per molecule.

Abstract: This invention, therefore, relates to the field of polyurethane coatings for use in automobile basecoat/clearcoat systems. In particular, this invention relates to water-dispersible polyurethane resins having polyether sidechains which may be utilized in basecoat compositions as principal resins or grind resins. These polyurethane resins may be laterally stabilized or terminally stabilized. The terminally stabilized resins of this invention are preferably employed as principal resins in basecoat compositions.

Abstract: Substituted benzyl 2-phenylalk(en)-1-ylcyclopropanecarboxylates of the general formula I ##STR1## where R.sup.1 is halogen or in each case low molecular weight, alkyl, alkoxy, haloalkyl or haloalkoxy (n=1 to 5),R.sup.2 is halogen or, in each case low molecular weight, alkyl or haloalkyl,R.sup.3, R.sup.4 are halogen or each is an electron in a double bond formed by them together,R.sup.5 is hydrogen or, in each case low molecular weight, alkyl, alkenyl, alkynyl or cyano,R.sup.6 is halogen or alkyl (n=1 to 4),R.sup.7 is halogen (p=0 to 25),and their use for combating pests.

Abstract: The preparation of 1-amino-2-carboxyanthraquinones I ##STR1## (X denotes hydrogen, chlorine or bromine) by oxidation, under alkaline conditions, of a 1-aminoanthraquinone substituted in the 2-position by an oxidizable carbo-organic radical followed by acidification of the reaction mixture, wherein a 1-amino-2-acetylanthraquinone II ##STR2## (Y denotes chlorine or bromine and n is equal to 0, 1 or 2) is reacted with a peroxide compound or oxygen as oxidizing agent.

Abstract: Aqueous synthetic resin dispersions are obtainable by single-stage emulsion copolymerization of a monomer mixture ofa) from 35 to 99.5% by weight of one or more vinyl esters of aliphatic monocarboxylic acids of not more than 6 carbon atoms (monomers A),b) from 0.5 to 10% by weight of one or more monomers of the general formula I (monomers B) ##STR1## where R.sup.1, R.sup.2 and R.sup.3 independently of one another are each hydrogen or methyl,c) from 0 to 64.5% by weight of one or more of the monomers acrylonitrile, styrene and esters of an .alpha.,.beta.-monoethylenically unsaturated monocarboxylic acid of 2 to 5 carbon atoms and an alkanol of 1 to 8 carbon atoms (monomers C) andd) from 0 to 5% by weight of one or more .alpha.,.beta.

Abstract: A glycol-based antifreeze mixture which is free of nitrites and phosphates contains an alkali metal salt of a C.sub.4 -C.sub.16 -alkenylsuccinic acid, stabilized silicate and further corrosion-inhibiting additives.

Abstract: The radiation-sensitive mixture contains(a) a polymeric binder which is insoluble in water but soluble in aqueous alkaline solutions and(b) an organic compound whose solubility in an aqueous alkaline developer is increased by the action of an acid and which contains one or more acid-cleavable groups,the polymeric binder (a) being a copolymer which contains o-nitrobenzyl groups.The novel radiation-sensitive mixture is particularly suitable for the production of photoresists.

Abstract: Modified homopolymer, random copolymers and/or block copolymers of aromatic vinyls and/or dienes contain functional groups of the general formula (I): ##STR1## where N is nitrogen, O is oxygen, Y is a substituted or unsubstituted bridge which besides carbon additionally contains N- or O-members, R is any desired organic radical, R.sup.1 is hydrogen, alkyl, cycloalkyl or aryl, and n is a whole number greater than or equal to 1, are prepared from living anionically polymerized or from alkali metallized homopolymers, random copolymers and/or block copolymers of aromatic vinyls and/or dienes which, reacted with organic nitrogen compounds, have a nitrogen-alkali metal bond by reaction of polymers of the general formula (II) in the presence of a polar or apolar solvent with compounds of the general formula (III) where Me is an alkali metal, X is halogen and Y, O, N, R, n and R.sup.

Abstract: A fungicidal mixture ofa) a compound of the formula I ##STR1## where R.sup.a =tridecyl or 3-(p-tert-butyl-(phenyl)-2-methylpropyl,R.sup.b =H, CH.sub.3 andX=O, CH.sub.2andb) a compound of the formula II ##STR2## where R.sup.1 is substituted or unsubstituted phenyl, naphthyl, tetrahydronaphthyl, benzothiophenyl, benzofuranyl, anthracenyl, acenaphthenyl, hexahydroindacenyl, tetrahydrophenanthrenyl, stilbenyl or benzodioxolanyl,R.sup.2 is hydrogen or methyl,R.sup.3 is hydrogen,R.sup.4 is alkyl, cyclopropyl, haloalkyl or alkenyl,W is alkenylene, fluoroalkenylene or a single bond,R.sup.5 is substituted or unsubstituted phenyl, or is naphthyl, substituted or unsubstituted alkenyl, or alkynyl, where the radical ##STR3## may denote the acenaphthenyl radical ##STR4## and the radical ##STR5## may also be part of a heterocyclic ring.

Abstract: Magnetic recording media consist of a nonmagnetic base and at least one matnetizable layer which is firmly applied thereon and is based on a magnetic material finely dispersed in a binder, consisting of not less than 50% by weight of a polyurethane, and further conventional additives, wherein the magnetizable layer also contains a saturated, branched hydrocarbon.

Abstract: Diaminothiophenes of the formula ##STR1## or tautomers thereof, where R.sup.1 and R.sup.2 are each hydrogen or together are ##STR2## where T.sup.1 is hydrogen, alkyl or phenyl, T.sup.2 and T.sup.3 are, independently of one another, alkyl or phenyl, or T.sup.2 and T.sup.3 together with the nitrogen linking them are a heterocyclic radical,R.sup.3 is substituted amino andR.sup.4 is alkanoyl, benzoyl, cyano, nitro or ##STR3## where T.sup.4 is hydrogen, alkyl or phenyl and T.sup.5 is the radical of a primary amine or of an active methylene compound,are prepared as described. The present diaminothiophene compound is useful in the synthesis of dyes, crop protection agents and pharmaceuticals.

Abstract: Oxidized polyethylenes useful as lubricants in the extrusion of polyvinyl chloride are prepared by oxidation of finely divided polyethylene of high density at elevated temperatures with an oxidation gas of air and/or oxygen, the polyethylene used containing from 0.015 to 0.5% by weight of a free radical former organic compound in admixture and being contacted per hour with an oxidation gas which per kilogram of polyethylene contains from 30 to 600, in particular from 80 to 300, mg of ozone, with or without a reduced pressure treatment at elevated temperatures after the oxidation.

Abstract: Stabilized acicular ferromagnetic chromium dioxide is prepared by reductive treatment of the chromium dioxide with Na.sub.2 [Fe(CO).sub.4 ], and this material is present in magnetic recording media.

Abstract: Quinoxalinepentamethine dyes of the formula ##STR1## where R.sup.1 is hydrogen, substituted or unsubstituted C.sub.1 -C.sub.22 -alkyl or substituted or unsubstituted C.sub.5 -C.sub.7 -cycloalkyl,R.sup.2 is hydrogen, chlorine, bromine or C.sub.1 -C.sub.6 -alkyl,Y is a radical of the formula --N.dbd.C(CH.sub.3)-- or --N(R.sup.1)--CO--, where R.sup.1 is as defined above,Z.sup.1 and Z.sup.2 are each hydrogen or together are unsubstituted or substituted C.sub.2 -C.sub.3 -alkylene,X.sup..crclbar. is an anion andthe rings A and B independently of each other may be substituted and/or benzofused and are useful in optical recording media.

Abstract: Navy and black dye mixtures contain one or more thiopheneazo dyes whose diazo component comes from the 2-aminothiophene series and whose coupling component comes from the aniline series and one or more dyes F whose absorption maximum is at a wavelength of from 390 to 520 nm, the proportion of the thiopheneazo dyes being from 60 to 99% by weight, based on the total weight of the thiopheneazo dyes and the dyes F in the mixture.

Abstract: For the production of extrudates of ultra-high molecular weight polyethylene, finely divided polyethylene or polyethylene powder is introduced into the cooled feed zone of a single-screw extruder and compressed therein, melted in a transport zone of the extruder and discharge with shaping of the extrudate and cooling. The polyethylene is processed in the transport zone using a velocity gradient of from 50 to 1,000 sec.sup.-1 in the radial play between the screw and the extruder barrel, heated to 180.degree.-280.degree. C. and then transferred to a screw-free zone in which final shaping of the extrudate is effected.