Abstract: Polymers comprising terephthalyl-or oxal arylamide groups represent excellent light stabilizers for synthetic, semi-synthetic and/or naturally occurring organic materials.

Abstract: Molding compositions comprising terminally unsaturated polyesters, vinyl or vinylidene compounds copolymerizable therewith and elastomeric polymers have an excellent impact strength and a good heat distortion temperature, strength and rigidity.

Abstract: Molding compositions comprising a "terminally unsaturated"polyurethane, a copolymerizable vinyl or vinylidene compound and a rubbery-elastic polymer having a glass transition temperature of between -90.degree. and +10.degree. C. can be used for the preparation of molded articles having a considerably increased impact strength and a good heat distortion temperature, strength and rigidity.

Abstract: Organic dispersions which can be cured with little shrinkage and are based on unsaturated polyester, copolymerizable vinyl or vinilydene compounds, thermoplastic polymers which are colloidally soluble and are incompatible with the polyester resin and an ethylene/vinyl acetate copolymer with high vinyl acetate contents show a good stability.

Abstract: Non-porous, thin, polycarbonate films and a process for their production. Solutions of polycarbonates in concentrations of less than 5 parts solids per 100 parts solvent are applied to the surface of liquids immiscible, or sparingly miscible with, the solvent for the polycarbonate. The solvent is then evaporated, and the resultant film removed. The films are useful for the separation of gas and liquid mixtures and for electrical insulating purposes.

Abstract: Unsaturated polyester moulding compositions hardenable with low shrinkage which are free-flowing comprise a crystalline unsaturated polyester, a copolymerizable vinyl monomer and a graft-polymerized butadiene polymer.

Abstract: An asymmetric semipermeable membrane of a homo- or co-polybenz-1,3-oxazine dione-(2,4).

Abstract: The heat distortion resistance and the molecular weight of polypropylene terephthalate and polybentylene terephthalate can be increased by cocondensing up to 10 mol-% of aliphatic diols containing 5 to 10 carbon atoms or of cycloaliphatic diols containing 8 to 12 carbon atoms.

Abstract: Non-porous, thin, polycarbonate films and a process for their production. Solutions of polycarbonates in concentrations of less than 5 parts solids per 100 parts solvent are applied to the surface of liquids immiscible, or sparingly miscible with, the solvent for the polycarbonate. The solvent is then evaporated, and the resultant film removed. The films are useful for the separation of gas and liquid mixtures and for electrical insulating purposes.

Abstract: Aromatic cyanic acid esters are obtained by an improved process. Optionally substituted mononuclear phenols or polynuclear phenols optionally interrupted through bridge members such as ##EQU1## and/or divalent hydrocarbon bridges are condensated in form of an aqueous phenolate solution with cyanogen halide dissolved in organic solvents in the presence of catalytic quantities of a tertiary amine in a highly disperse system (two phase boundary reaction).The cyanic acid esters obtained are highly pure and stable.

Abstract: Thermoplastic compositions of1. 30 to 70 parts by weight of a thermoplastic aromatic polycarbonate urethane obtained by reacting a low molecular weight aromatic polycarbonate having terminal chloroformic acid ester groups and a degree of polymerization P.sub.n of 1 to 20, preferably 1 to 10, with 1 to 15 mol %, based on the quantity of dihydroxy compound co-condensed in the polycarbonate, of disecondary aliphatic, cycloaliphatic or aromatic diamines, and2. 70 to 30 parts by weight of a mixture of2.1. 0 to 100 % by weight of a copolymer of monomers from the groups2.1.1. styrene, .alpha.-methyl styrene and/or2.1.2. acrylonitrile, methacrylonitrile, acrylic acid esters, methacrylic acid esters,2.2. 100 to 0 % by weight of a graft polymer of a monomer mixture of2.2.1. 95 to 50 % by weight of styrene, .alpha.-methyl styrene, methyl methacrylate or mixtures thereof,2.2.2. 5 to 50 % by weight of acrylonitrile, methacrylonitrile or mixtures thereofOn a rubber.

Abstract: Non-porous, thin, polycarbonate films and a process for their production. Solutions of polycarbonates in concentrations of less than 5 parts solids per 100 parts solvent are applied to the surface of liquids immiscible, or sparingly miscible with, the solvent for the polycarbonate. The solvent is then evaporated, and the resultant film removed. The films are useful for the separation of gas and liquid mixtures and for electrical insulating purposes.

Abstract: A branched, high molecular-weight polyaryl-ether sulphone which is the reaction product of approximately equimolar amounts of an aromatic dialkali metal bishydroxylate and a bis-(halogen-aryl) compound, whose aryl nuclei are linked by sulphonyl groups, and about 0.01 to about 2 mol %, based on the bishydroxylate or bis-(4-halogenaryl) compound, of an aromatic compound having at least three aromatically linked alkali metal hydroxylate substitutents and/or of a halogenaryl compound having at least three aryl-linked halogen substituents and which is capable of substitution under the reaction conditions of polyaryl-ether sulphone manufacture.

Abstract: In a process for continuously producing solutions of dialkali or dialkaline earth metal salts of aromatic dihydroxy compounds, the aromatic dihydroxy compound is sprayed in the form of a melt onto a turbulent liquid film of a solution of an alkali or alkaline earth metal hydroxide. The alkali or alkaline metal hydroxide is preferably solved in water.

Abstract: Low-molecular polyesters prepared by the condensation of diols and dicarboxylic acid dialkyl esters show a substantially improved capactiy to undergo polycondensation in a susequent polycondensation below the melting point if said low-molecular polyesters are prepared from pressure trans-esterification products by polycondensation in the melt.

Abstract: Polyester masses which are curable with low shrinkage containing non-crystallising unsaturated polyesters having a definite styrene compatibility, copolymerisable vinyl monomers and cellulose acetobutyrate and/or cellulose acetopropionate.