Abstract: Liquid polyglycidyl compounds, diethyltoluylenediamine, a curing accelerator and optionally further additives form a liquid matrix system with which fibres and fibre shapes are impregnated by known techniques, particularly by filament winding, pultrusion and injection processes. The components thus produced are for example tubes capable of withstanding pressure and torsional stress.

Abstract: Flame-resistant plastics moulding material formed from a polymer, preferably a thermoplast, and a halogenated benzimidazolone or halogenated benzimidazolone derivative, such as N,N'-di-(2-hydroxyethyl)-4,5,6,7-tetrabromobenzimidazolone or 4,5,6,7-tetrabromobenzimidazolone calcium, as a flame-resistant agent. The flame-resistant agent is added to the polymer at any suitable stage of production by a simple mixing together of the constituents, whereby this flame-resistant agent must not react chemically with the polymer.

Abstract: Novel carboxylic acid dianhydrides are obtained by esterifying or trans-esterifying hydantoindiols, or diesters thereof, of the formula ##STR1## in which m and n are each a number from 1 to 4 and R.sub.1 and R.sub.2 are each an alkyl having 1 to 5 C atoms, or R.sub.1 and R.sub.2 together are the pentamethylene radical, R.sub.3 is a hydrogen atom or methyl and R.sub.4 is a hydrogen atom, acetyl or propionyl, with trimellitic anhydride.The novel dianhydrides are valuable curing agents for epoxide resins and are suitable for the preparation of polymers which are derived from carboxylic acid dianhydrides.

Abstract: Dicarboxylic acids containing at least two triazine rings are very suitable for producing thermoplastic polyesters having high glass transition temperatures and high dimensional stability under heat, and at the same time good processing characteristics.

Abstract: Novel anthranilates of oxyalkylated cyanuric acid are obtained by reacting the oxyalkylated cyanuric acid, for example 1,3,5-tris-(2'-hydroxyethyl) isocyanurate, with isatoic anhydride. The anthranilates are valuable chain extenders and crosslinking agents in the production of polyurethanes and polyurea resins and can also be used as curing agents for epoxide resins.

Abstract: Dicarboxylic acids containing at least two triazine rings are very suitable for producing thermoplastic polyesters having high glass transition temperatures and high dimensional stability under heat, and at the same time good processing characteristics.

Abstract: New dialcohols of mononuclear, five-membered or six-membered, unsubstituted or substituted N-heterocyclic compounds which contain two NH-groups in the molecule, by reaction of mononuclear, five-membered or six-membered, unsubstituted or substituted N-heterocyclic compounds, for example hydantoin, barbituric acid, uracil, dihydrouracil, parabanic acid and the corresponding derivatives, with ethylene oxide or propylene oxide to give dialcohols. These diols are useful as intermediates for the preparation of polymers, such as polyesters or polyurethanes, or of epoxy resins.

Abstract: Novel bis-anthranilates are obtained by reacting 1 mol of a N,N'-bis-(hydroxyalkyl)-urea with 2 mols of isatoic anhydride. The novel bis-anthranilates are valuable chain extenders for polyurethanes and valuable crosslinking agents for polyurea and epoxide resins.

Abstract: Bis-anthranilates of the formula ##STR1## or mixtures thereof, in which, in the formula, m and n are each 0 or a number from 1 to 5 and the sum of m and n must be at least 1, y is 0 or 1 and X is an alkylene radical having 1 to 8 C atoms, para- or meta-phenylene or para-cyclohexylene.The novel compounds are valuable chain extenders and crosslinking agents for the production of polyurethanes and polyurea resins and are also suitable as curing agents for epoxide resins.

Abstract: Bis-anthranilates of the formula I ##STR1## or mixtures thereof, in which, in the formula, m and n are each 0 or a number from 1 to 5, preferably a number from 1 to 3, and the sum of m and n must be at least 1, as novel chain extenders and crosslinking agents for the production of polyurethanes and polyurea resins. The compounds of the formula I are also suitable as curing agents for epoxide resins.

Abstract: Anthranilates of the formula ##STR1## wherein each R is hydrogen or ##STR2## each n is the number 2, 3 or 4, y is nought or 1 and X is an alkylene radical having 1 to 8 C atoms, meta- or para-phenylene or meta- or para-cyclohexylene, are obtained by reacting a hydroxyalkylated dicarboxylic acid diamide of the formula ##STR3## wherein each R is hydrogen or --CH.sub.2).sub.n OH and n, y and X are as defined above, with isatoic anhydride, preferably in the presence of an alkaline catalyst.The novel compounds are valuable chain extenders and crosslinking agents for the production of polyurethanes and polyurea resins and are also suitable as curing agents for epoxide resins.

Abstract: Metal complexes of zinc, copper, cobalt and nickel and N-.beta.-hydroxyalkylated or .gamma.-aminoalkylated .alpha.-aminocarboxylic acids which are substituted at the .alpha.-carbon atom have excellent heat resistance, in particular a good heat resistance under oxydative influences. These complexes are also soluble in many starting components used for obtaining specific polymers. They are therefore especially suitable for obtaining copolymers which contain metal ions, for example polyesters, polyurethanes and polyamides. The copolymers can be used for manufacturing moulded articles.

Abstract: Linear thermoplastic polyesters obtained from (a) dicarboxylic acids which contain NH groups, (b) if desired, terephthalic acid and/or isophthalic acid, (c) if desired, diols containing aliphatic diol groups and (d) .beta.-hydroxyalkylated bisphenols are materials from which it is possible to produce shaped articles which have good properties, for example good resistance to stress cracking and stability to thermooxidative degradation, and also a low absorption of water.

Abstract: Dicarboxylic acids or dicarboxylic acid esters, containing a N,N-heterocyclic radical, of the formula ##STR1## in which the two R.sub.1 independently of one another each denote hydrogen, an alkyl with 1 to 4 C atoms or a phenyl, the two R.sub.2 independently of one another each denote hydrogen or an alkyl with 1 to 10 C atoms, the two n represent identical or different numbers from 2 to 12 and X denotes a divalent monocyclic N,N-heterocyclic radical of benzimidazolone, parabanic acid, 2,2-dimethylimidazolidine-4,5-dione, 6-ethyluracil or barbituric acid are prepared by reacting 1 mol of the corresponding N,N-heterocyclic compounds with 2 mols of a compound of the formula ##STR2## wherein Y.sub.1 denotes a chlorine or bromine atom. The dicarboxylic acid compounds have a high stability to heat and therefore are very suited for the manufacture of polycondensates by the melt condensation process.

Abstract: New dialcohols of mononuclear, five-membered or six-membered, unsubstituted or substituted N-heterocyclic compounds which contain two NH-groups in the molecule, by reaction of mononuclear, five-membered or six-membered, unsubstituted or substituted N-heterocyclic compounds, for example hydantoin, barbituric acid, uracil, dihydrouracil, parabanic acid and the corresponding derivatives, with ethylene oxide or propylene oxide to give dialcohols. These diols are useful as intermediates for the preparation of polymers, such as polyesters or polyurethanes, or of epoxy resins.

Abstract: Copolyesters which are based in poly-1,4-butylene therephthalate and contain 2,5-15 mol %, relative to the polyester, of branched aliphatic dicarboxylic acids with 7-30 C-atoms are outstandingly suitable for the manufacture of mouldings having improved toughness properties.

Abstract: New dicarboxylic acid derivatives containing a N,N-heterocyclic radical are obtained by reacting 1 mol of a cyclic ureide, such as 1,1-methylene-bis-hydantoin, benzimidazolone, parabanic acid, 6-methyluracil or 2,2-diethylbarbituric acid, with 2 mols of 4-halogenomethylbenzoic acid derivatives. The new dicarboxylic acid derivatives are valuable monomers for the manufacture of stable plastics. Thus, the dicarboxylic acid dialkyl esters, for example, can be converted by means of diols into polyesters with valuable mechanical properties.

Abstract: Dicarboxylic acids and dicarboxylic acid esters of the formula ##STR1## wherein both R.sub.1 each denote hydrogen, alkyl with 1 to 4 C atoms or phenyl, both R.sub.2 each denote hydrogen or alkyl with 1 to 10 C atoms and, if the two R.sub.2 each denote hydrogen, the two n represent numbers from 2 to 12 and, if the two R.sub.2 each denote an alkyl group with 1 to 10 C atoms, the two n represent numbers from 1 to 12, R.sub.3 denotes hydrogen, methyl or ethyl and R.sub.4 denotes methyl, ethyl, propyl or isopropyl, are prepared by reacting 1 mol of a 1,1'-methylene-bis-hydantoin of the formula ##STR2## or its disodium or dipotassium salt with 2 mols of a compound of the formula ##STR3## wherein Y.sub.1 denotes a chlorine or bromine atom. The dicarboxylic acid compounds are characterized by a high stability to heat and therefore very suitable for the manufacture of polycondensates by the melt condensation process.

Abstract: Thermoplastic polyesters which are more stable to heat and have good properties in use and during processing are obtained with dicarboxylic acids containing N,N-heterocyclic rings when the alkylene group which bonds the carboxyl groups to the N atoms contains at least 3 C atoms.

Abstract: Thermoplastic polyesters based on aromatic diols are flexible, possess good working properties and have a high glass transition temperature when they contain dicarboxylic acids having N,N-heterocyclic rings.