Abstract: A high molecular-weight polyphenylene oxide is produced by the oxidative coupling of a diortho-substituted phenol in the presence of a copper amine complex and an activator of morpholinium bromide and an alkali metal hydroxide or alkaline earth hydroxide.

Abstract: Silyl-group-containing 1,3-butadiene polymers are stabilized against self crosslinking by addition of epoxides having an epoxy oxygen content of 2-17% by weight.

Abstract: A process for condensing a linear polyalkylene terephthalate having a viscosity number of at least 60 cc/g in two stages, at an elevated temperature, in the solid phase, and in the presence of an alkanediol, comprises, in a first stage, treating the polyalkylene terephthalate in an inert gas stream at a reaction temperature 30.degree.-80.degree. C. below its melting point, with 0.2-3.5% by weight, based on the weight of the polyalkylene terephthalate, of an alkanediol whose boiling point under normal pressure is 20.degree.-70.degree. C. above the reaction temperature, wherein the amount of inert gas passed through per hour, measured under standard conditions, corresponds to 0.3 to 2 times the gross reactor volume; and, in a second stage, condensing the polyalkylene terephthalate in an inert gas stream at a temperature 5.degree.-25.degree. C. below its melting point, wherein the amount of inert gas passed through per hour, measured under standard conditions, corresponds to 2.

Abstract: A homo- or copolymer of a 1,3-diene bound to reactive silyl groups, whereby it contains 0.4-12% by weight of bound silicon, is prepared by reacting, at a temperature of 190.degree.-300.degree. C., a 1,3-diene homo- or copolymer, with more than 1% of its aliphatic double bonds in conjugation and having a molecular weight (Mn) of 400-6,000, with a silane of the formula ##STR1## wherein R is an unsaturated aliphatic hydrocarbon radical of 2-20 carbon atoms,X is halogen, C.sub.1-6 alkoxy, C.sub.1-6 alkoxyalkoxy, C.sub.6-12 aryloxy, C.sub.1-8 alkanoyloxy, C.sub.1-6 ketoximato or C.sub.1-10 hydrocarbylamido, andY and Z are independently one of the X groups, hydrogen, alkyl of 1-8 carbon atoms, cycloalkyl of 5-12 carbon atoms, or optionally substituted phenyl.

Abstract: A process for the regeneration and further condensation of a linear polyalkylene terephthalate, which is inactive due to recondensation treatment in the solid phase, and which has a viscosity number of at least 60 cc/g, the process being conducted in two stages, at an elevated temperature, in the presence of an alkanediol, comprises, in a first stage, treating the inactive polyalkylene terephthalate at a reaction temperature of 30.degree.-80.degree. C. below its melting point, with 0.3-3.5% by weight, based on the weight of the polyalkylene terephthalate, of an alkanediol whose boiling point under normal pressure is 20.degree.-70.degree. C. above the reaction temperature, in an inert gas stream, wherein the amount of inert gas passed through per hour, measured under standard conditions, corresponds to 0.3-2 times the gross reactor volume; and, in a second stage, condensing the polyalkylene terephthalate at a temperature of 5.degree.-25.degree. C.

Abstract: A process for preparing a reaction product of a conjugated diolefin and an aromatic hydrocarbon comprises contacting these reactants with a catalyst comprising(1) a phosphorous modified cobalt compound comprising a cobalt compound which is soluble in the aromatic hydrocarbon and a phosphorous compound of the formula ##STR1## wherein R.sup.17, R.sup.18 and R.sup.19 each, independently, is C.sub.1-14 -alkyl, C.sub.2-14 -alkenyl or C.sub.6-14 -aryl(2) a halogen-containing organoaluminum compound; and(3) a modifier of the formula ##STR2## wherein X is chlorine, bromine, or iodine, andR.sub.1 through R.sup.

Abstract: A binder for a bakable aqueous anodic electrocoating composition comprises a water-soluble and/or water-dispersible addition compound, at least partially neutralized with a basic compound and esterified, the addition compound comprising 10-35% by weight of one or more .alpha.,.beta.-unsaturated dicarboxylic acids and 65-90% by weight of a butadiene polymer, liquid at 20.degree. C. and having at least 50 molar percent butadiene units and a molecular weight of 400 to 6,000, the addition compound being esterified to 20-70 equivalent percent, based on its acid number, with one or more unsaturated alcohols of the formula ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 are identical or different and each independently is hydrogen or methyl,R.sup.4 is hydrogen or C.sub.1-5 -alkyl,andn is 0 or 1.

Abstract: A binder for a heat-curable aqueous coating composition for metallic surfaces comprises:(A) 60-95% by weight of a water-soluble and/or water-dispersible addition compound of 10-35% by weight of one or more .alpha.,.beta.-unsaturated dicarboxylic acids and 65-90% by weight of a butadiene polymer which is liquid at 20.degree. C., contains at least 50 mole % of butadiene units and has a molecular weight of 500 to 6,000, the addition compound being at least partially neutralized with a basic compound and partially esterified,and(B) 5-40% by weight of a water-soluble and/or water-dispersible crosslinking resin having, on the average, at least 2 chemically different reactive groups per mole,wherein the addition compound (A) is esterified to 10-70 equivalent percent, based on its acid number, with one or more unsaturated alcohols of the formula ##STR1## and wherein at least one of the reactive groups of the crosslinking resin (B) is of formula II ##STR2## wherein, for both formulae I and II, R.sup.1, R.sup.2 and R.

Abstract: In a liquid coating composition comprising a small amount of solvent or no solvent, a binder and optionally conventional auxiliary agents, wherein the binder consists essentially of:(A) 45-10% by weight of an aminoplast, the low molecular weight precursors thereof, or mixtures thereof; and(B) 55-90% by weight of an at least difunctional polyester or a mixture of such polyesters; wherein the polyester component B has been produced by the condensation of a conventional alcohol component I with an acid component III, wherein component III consists essentially of a mixture of:III.1 67-92 molar percent of hexahydroterephthalic acid or a lower alkyl ester thereof; andIII.