Abstract: Thermoplastic molding materials contain, as essential components,A) from 5 to 94% by weight of a polyamide,B) from 5 to 94% by weight of a polyphenylene ether,C) from 1 to 20% by weight of a partially hydrogenated PQP' block copolymer, where.alpha.) the blocks P and P' consist of vinylaromatic monomers and the total amount of these blocks in the block copolymer is from 25 to 40% by weight,.beta.) the number average molecular weight of block P is not more than 8,000 and is smaller than the number average molecular weight of block P',.gamma.) block Q consists of conjugated diene monomers and accounts in total for from 60 to 75% by weight of the block copolymer and.delta.) from 5 to 30% by weight of the double bonds in block Q are not hydrogenated, andD) from 0 to 50% by weight of a vinylaromatic polymer.

Abstract: A transparent thermoplastic molding material contains, based on A+B,A: from 5 to 95% by weight of polystyrene andB; from 95 to 5% by weight of a nonelastomeric star block copolymer which is composed of, based on B, b.sub.1 from 60 to 95% by weight of styrene and b.sub.2 from 5 to 40% by weight of one or more conjugated dienes of 4 or 5 carbon atoms and is prepared in a conventional manner by sequential anionic polymerization using one or more organolithium compounds as an initiator and in the presence of a solvent with subsequent coupling.In this process, component A is produced by conventional anionic polymerization using one or more organolithium compounds in the presence of an organic solvent.The molding material is prepared by mixing the components A and B, with or without C, in a conventional manner and is used for the production of moldings.

Abstract: Block polymers of vinylaromatics and conjugated dienes which posses acidic terminal groups and are in the form of salts which contain divalent or polyvalent metal cations or cation complexes. A process for the preparation of such salts of block polymers containing acid groups, and the use of these polymers as thermoplastic materials, as thermoplastic elastomers, for modifying thermoplastic materials, as viscosity index improvers in lubricating oils or as components in hot melt adhesives.

Abstract: Homopolymers or block copolymers of vinylaromatics and/or dienes and hydrogenated derivatives thereof, which contain end groups of the general formula (I):NH--(A).sub.x --NR.sup.1 R.sup.2 .multidot.n H.sub.m S (I)where A is a substituted or unsubstituted bridge which, in addition to carbon, may contain nitrogen or oxygen, X is 0 or 1, S is an inorganic or organic acid radical, n is an integer from 1 to 12 and indicates the number of moles of acid used per chain end, R.sup.1 and R.sup.2 are each hydrogen, aliphatic or aromatic radicals or a bridge of 3 to 12 carbon members which may be substituted by aliphatic or aromatic radicals, and m is the number of hydrogen ions of the acid used, are prepared from polymers having amino end groups of the general formula (II):NH--(A).sub.x --NR.sup.2 R.sup.3 (II)where R.sup.1, R.sup.

Abstract: Process for preparing impact-resistant translucent rubber-modified polystyrene by polymerizing compounds of the styrene class in the presence of a rubber containing thiol groups.

Abstract: Homopolymers, copolymers or block copolymers obtained from vinylaromatics and/or conjugated dienes and functionally modified at chain ends via amide groups with terminal acid groups or salts thereof, and hydrogenation products of these polymers, which contain salts of functional groups of the formula I, II, III, IV or V ##STR1## wherein N is nitrogen, R.sup.1 is alkyl or aryl, R.sup.3 is a 2-membered to 20-membered bridge in which at least the members adjacent to the nitrogen atoms consist of --C(R.sup.6, R.sup.7) radicals, where R.sup.6 and R.sup.7 are each hydrogen, alkyl, cycloalkyl or aryl, and the more remote members are not only --C(R.sup.6, R.sup.7) radicals but may furthermore be ether or N-alkyl- or N-arylimino groups, R.sup.2 is a divalent organic radical, R.sup.4, R.sup.5, R.sup.8 and R.sup.9 are each alkyl or aryl or together form a cyclic bridge, and X is COOH or SO.sub.3 H or their salts or complexes and a process for preparing the polymers and copolymers.

Abstract: Preparation of 1-aryl-1-alkenes by dehydration of 1-aryl-1-alkanols in the presence of a substance promoting elimination of water, the substance being a triester of phosphorous acid in which at least one of the radicals is an aryl group.The products are suitable as, inter al., initiators for anionic polymerization.

Abstract: Mixtures which can be crosslinked by photopolymerization and are based on binders, photopolymerizable monomers which are compatible with these, photoinitiators and thermal polymerization inhibitors contain, as the binder, polymers of the formula I ##STR1## where Pol is a radical of a block copolymer prepared by sequential anionic polymerization of conjugated dienes and vinyl aromatics,R.sup.1 is a vicinal alkanediyl group,R.sup.2 is a divalent hydrocarbon group of 2 to 20 carbon atoms,X.sup.- is an acid anion,M is a metal cation, a metal cation complex or cation of an amine, anda and n are each an integer from 1 to 10.

Abstract: Impact-resistant translucent rubber-modified polystyrene is produced by polymerizing compounds from the class of the styrenes in the presence of an elastomeric polymer which contains thiol groups.

Abstract: In block copolymers of the general formula A--B--A' which have a molecular weight of less than 300,000 and consist of from 18 to 40% by weight of a vinylaromatic hydrocarbon and from 60 to 82% by weight of one or more partially or completely hydrogenated hydrocarbons and in which A and A' are each a polymer block of a vinylaromatic hydrocarbon and B is a polymer block of a diene hydrocarbon, the weight ratio of the polymer blocks A to A' is less than or equal to 1:5 and greater than 1:10 and the mean molecular weight of polymer block A is from 2,000 to 20,000 and that of the polymer block A' is from 10,000 to 110,000 and the molecular weight of the B block is not less than 18,000.

Abstract: Bifunctional initiators for anionic polymerization are prepared by reacting an alkenylaromatic compound of the general formula I ##STR1## where Ar is aromatic hydrocarbyl which may be substituted by alkyl or another group inert toward organoalkali metal compounds and may contain nitrogen,R.sup.1 is linear or branched alkyl, cycloalkyl, alkenyl or aralkyl or from 1 to 22 carbon atoms where at least the carbon adjacent to the double bond is saturated and aliphatic,R.sup.2 is hydrogen or is likewise linear or branched alkyl, cycloalkyl, alkenyl or aralkyl or from 1 to 22 carbon atoms where at least the carbon adjacent to the double bond is saturated and aliphatic, and where R.sup.1 and R.sup.2 may be part of a common cycloaliphatic ring, in the presence of one or more ethers and of tertiary amines and in the presence or absence of a further inert aliphatic, alicyclic or aromatic solvent, at from -20.degree. to +70.degree. C.

Abstract: Homo- or copolymers which have terminal mercapto groups, are composed of one or more monomers from the group consisting of butadiene, isoprene and styrene and are obtained by anionic polymerization of one or more of the stated monomers in the presence of one or more organolithium compounds followed by reaction (of the living anions) with an episulfide of the general formula I ##STR1## where R is hydrogen, alkyl of 1 to 18 carbon atoms or aryl of 6 to 10 carbon atoms, with the formation of one or more primary or secondary mercapto groups at the end of the polymer chain(s) are prepared by a process in which a thiolcarboxylic acid of the general formula II ##STR2## where R.sup.1 is hydrogen, alkyl of 1 to 10 carbon atoms or --CH.sub.2 --COOH and R.sup.2 is 0 or from 1 to 10 CH.sub.2 units, is added directly to the resulting reaction mixture in an amount of from 0.

Abstract: Polymers and copolymers of conjugated dienes and aromatic vinyl compound which have a carboxyl end group and are present as salts, the salts containing metal cations or metal cation complexes which are bivalent or polyvallent and also a process for preparing such salts of polymers which contain carboxyl end groups and their use for modifying thermoplastic materials or as vulcanizable materials.

Abstract: Block polymers of vinylaromatic compounds and conjugated dienes which possess acidic terminal groups, are present in the form of lithium salts and form an aluminum complex. A process for the preparation of such complexes and the use of these block polymer complexes as molding materials and for modifying thermoplastic materials.

Abstract: Oligomeric polyfunctional initiators for anionic polymerization of dienes and/or alkenylaromatics are prepared by a process in which a mixture of dialkenylaromatics and alkenylaromatics in a molar ratio of from 1:4 to 1:100, in an inert solvent, is run, at from 25.degree. to 100.degree. C., continuously or in small portions, with thorough mixing, into an initially taken mixture which contains from 1.2 to 3.0 molar equivalents, based on the dialkenylaromatics, of one or more organolithium compounds and an inert solvent, and is polymerized completely. The resulting oligomeric initiators are used for the preparation of unfunctionalized or functionalized polymers or block copolymers from dienes and/or alkenylaromatics, and the functionalized polymers thus prepared are used as prepolymers for other resins.

Abstract: Decene oligomers useful with or without hydrogenation as basis for synthetic lubricating oils are prepared by oligomerizing decene-1 in the presence of an alkylaluminum chloride catalyst and an alkyl halide cocatalyst, in a first reaction stage the decene-1 being mixed with the catalyst at from 0 to +25.degree. C. and being kept in contact therewith within the same temperature range for not less than 15 minutes and in a second reaction stage the cocatalyst being added at from 0 to +35.degree. C. in the course of a period of from 15 to 180 minutes.

Abstract: The terminally functionalized polymers are prepared from living polymers obtained by anionic polymerization of olefinically unsaturated monomers by reacting the living polymers first with capping reagents comprising nitrogen compounds of the general formulae I to VII: ##STR1## where R.sup.1 and R.sup.4 are each H, alkyl cycloalkyl or aryl, R.sup.2, R.sup.3 and R.sup.5 are each alkyl, cycloalkyl or aryl and A is a substituted or unsubstituted bridge which, in addition to the C members, can also contain N or O members and ##STR2## where R.sup.6 and R.sup.7 are each alkyl or aryl, A is a single-membered substituted or unsubstituted carbon bridge and B is a 2- to 12-membered bridge of which at least those members adjacent to the nitrogen atom comprise --C(R.sup.8, R.sup.9) radicals, where R.sup.8 and R.sup.9 can be identical or different and are H, alkyl, cycloalkyl or aryl, and the nonadjacent members can be not only --C(R.sup.8, R.sup.

Abstract: Homo- co- and/or block polymers which are modified with amino functional groups, are obtained from vinylaromatics and/or dienes and contain functional groups of the formulae (I) to (VI) ##STR1## where N is nitrogen, R.sup.1 and R.sup.4 are each hydrogen, alkyl, cycloalkyl or aryl, R.sup.2, R.sup.3 and R.sup.5 are each alkyl, cycloalkyl or aryl, Me is an alkali metal and A is an unsubstituted or substituted bridge which, in addition to carbon, may contain N or O members, a process for the preparation of the polymers from living anionically polymerized or alkali-metal-metallized homo-, co- and/or block copolymers from vinylaromatics and/or dienes, which are reacted with appropriate nitrogen compounds in the presence of a polar or nonpolar solvent, and the conversion of the polymers as claimed in claim 1 for the preparation of similar polymers by hydrolysis, alcoholysis and/or hydrogenation.

Abstract: Process for preparing N,N'-dialkyldiaziridines or bicyclic diaziridines of the general formula I or II: ##STR1## where R.sup.1 and R.sup.2 are each alkyl or aryl, A is a substituted or unsubstituted one-membered carbon bridge and B is a substituted or unsubstituted three-membered methylene bridge, by reacting a mixture of two moles of a monoamine or one mole of a 1,3-diamine with one mole of an aldehyde or ketone at 25.degree.-70.degree. C., preferably 40.degree.-50.degree. C., while thoroughly mixing with one mole of an aqueous solution of an alkali metal or alkaline earth metal salt of hypochlorous acid and extracting with an organic solvent, preferably chloroform, from the reaction mixture, as well as bicyclic diaziridines which have 1,3-diazabicyclo-[3.1.0]-hexane as basic structure and are prepared using 2,2-dimethyl-1,3-propylenediamine.

Abstract: Homopolymers, copolymers and/or block copolymers which are obtained from vinylaromatics and/or dienes, are modified with functional amino groups and contain functional groups of the formula (I) or (II) ##STR1## where N is nitrogen, R.sup.1 and R.sup.2 are each alkyl or aryl, A is an unsubstituted or substituted one-membered carbon bridge, Me is an alkali metal and B is a 2-membered to 12-membered carbon bridge in which at least the members adjacent to the nitrogen atoms consists of --C(R.sup.3,R.sup.4) radicals, where R.sup.3 and R.sup.4 can be identical or different and are each hydrogen, alkyl, cycloalkyl or aryl, and the more remote members can be not only --C(R.sup.3 R.sup.