Abstract: Aqueous formulations containing a copolymer of monoolefinically unsaturated monomers having an acid number of 5 to 150 mg of KOH/g of substance and/or a polyurethane having an acid number of 5 to 150 mg of KOH/g of substance as the binder and a triglycidyl isocyanurate having an epoxy value of 0.5 to 1.01 as the cross-linker are suitable for dressing fill grain, buffed or split leathers.

Abstract: Organic polymers, for example thermoplastics, thermosetting resins, elastomers or lacquers with increased electrical conductivity, characterized by a content of sulphur-containing pyropolymers which have been obtained by pyrolysis of sulphur-containing condensation products of aromatic compounds, which optionally contain hereto-cyclic rings with O, S or N as hetero-atoms and, sulphur or sulphur releasing compounds.

Abstract: The present invention relates to a process for the production of urethane modified polyisocyanate preparations having an isocyanate content of 5 to 32% by weight by the reaction of(a) polyisocyanates of the diphenylmethane series or polyisocyanate mixtures of the diphenylmethane series with(b) organic polyhydroxyl compoundsusing an NCO/OH equivalent ratio of from 2.5:1 to 50:1, characterized in that the organic polyhydroxyl compound (b) used are:(b1) urazoles or isocyanurates having OH numbers in the range of from 168 to 721 containing 2 or 3 alcoholic hydroxyl groups and carrying hydroxyalkyl substituents, optionally with ether bridges, on the nitrogen, or mixtures thereof, or(b2) mixtures of the polyhydroxyl compound mentioned under b1) with up to 50 hydroxy equivalents percent of other organic polyhydroxyl compounds.

Abstract: The invention relates to laminates of polyhydantoins.

Abstract: New tris-hydroxyalkyl triazolidine-3,5-diones are obtained by reacting triazolidine-3,5-dioxy with alkylene oxides.

Abstract: The present invention relates to new N,N'-bis-(2,3-epoxypropyl) derivatives of cyclic dicarboxylic acid hydrazides and to a process for their production.

Abstract: Use of compounds of the formula ##STR1## in which R.sup.1 designates hydrogen, an organic radical, the bonds R.sup.1 --N being C--N bonds, and, in the case in which m is 1, also acyl,R.sup.2 and R.sup.3 designate hydrogen, an organic radical, the bonds R.sup.2 --N and R.sup.3 --N being C--N bonds, and acyl, andm is an integer equal to the indicated valence of R.sup.1,the compounds of the formula I furthermore containing at least one acyl group, as activators for per compounds, bleaching agents and detergents containing these activators, and new triazolidine-3,5-diones.

Abstract: Polyamide moulding compositions containing triazolidine-3,5-diones or reaction products thereof as flame retarding agents.

Abstract: Glycidyl-1,2,4-triazolidine-3,5-diones corresponding to the general formula I ##STR1## wherein R.sup.1 represents a mono- to pentavalent substituted or unsubstituted straight-chain or branched-chain C.sub.1 -C.sub.3 O aliphatic group, a mono- to pentavalent substituted or unsubstituted C.sub.5 -C.sub.21 cycloaliphatic group, a mono- to pentavalent substituted C.sub.7 -C.sub.17 aliphatic-aromatic group or a mono- to pentavalent substituted or unsubstituted C.sub.6 -C.sub.21 aromatic group, the above mentioned aliphatic group being optionally interrupted by one or more oxygen atoms or tertiary nitrogen atoms, and the above mentioned aliphatic-aromatic, polynuclear and cycloaliphatic polynuclear aromatic groups being optionally interrupted by at least one oxygen or tertiary nitrogen atom or by at least one C.sub.1 -C.sub.4 alkylene group or by at least one sulphonyl group ##STR2## R.sup.2 and R.sup.

Abstract: Self-extinguishing thermoplastic polyamide moulding compositions containing barbituric acid and/or reaction products thereof as flameproofing agent.

Abstract: A triazolidine-3,5-dione/formaldehyde/amine condensate is disclosed of the formula ##STR1## in which wherein the terms R.sup.1, R.sup.2 and R.sup.5 are defined hereinafter in the specificationa process for the preparation of such condensate by reaction of a triazolidine-3,5-dione with formaldehyde and a suitable nitrogen compound and the use of the condensate as a flame-proofing agent for thermoplastics, especially polyamide and as an auxiliary for modifying polymeric substances.

Abstract: This invention is directed to glycoluril-triazine salts of the formula: ##STR1## wherein the R's are hydrogen and hydrocarbon radicals, n is 1 to 4, and m is 4-n. These materials are suitable for modifying polymers, such as polyurethanes and flameproofing polyamides.

Abstract: A process for the production of 1,2,4-triazolidine-3,5-diones corresponding to the general formula I ##STR1## in which R.sup.1 represents a monofunctional, optionally substituted hydrocarbon radical, optionally interrupted by hetero atoms or hetero atomic groups,characterized in that hydrazodicarbonamide or 1,2,4-triazolidine-3,5-dione is reacted with a primary amine corresponding to the general formula IIR.sup.1 NH.sub.2 (II)ora monofunctional hydrazodiacarbonamide corresponding to the formula IIIH.sub.2 --N--CO--NH--NH--CO--NH--R.sup.1 (III)in whichR.sup.1 is as defined for formula I, at a temperature in the range from 150.degree. to 280.degree. C., under pressure of from 50 mbars to 5 bars, the reaction being accompanied by the elimination of ammonia.

Abstract: An hydroxyalkyl- and alkoxyalkyl-triazolidine-3,5-dione is disclosed of the formula ##STR1## wherein R.sup.1 represents an unsubstituted or substituted aliphatic radical, which is straight-chain or branched, with 1-20 C atoms, mono- or poly-cycloaliphatic radical with 5 to 21 C atoms, araliphatic radical with 7 to 17 C atoms or aromatic radical with 6 to 20 C atoms, each radical carrying m of the radicals shown in brackets, and it being possible for the aliphatic radicals to be interrupted by one or more oxygen atoms or tertiary nitrogen atoms and for the cycloaliphatic, araliphatic and aromatic radicals to be interrupted by one or more oxygen atoms, tertiary nitrogen atoms or methylene groups with 1 to 4 C atoms,R.sup.2 and R.sup.3 independently of one another denote hydrogen or a straight-chain or branched aliphatic radical with 1 to 10 C atoms,R.sup.

Abstract: Self-extinguishing flame resistant polyamide moulding compositions containing from 0.1 to 20% by weight of at least one glycoluril and/or reaction product of glycoluril as a flame-proofing agent.

Abstract: Polyamide moulding compositions containing triazolidine-3,5-diones or reaction products thereof as flame retarding agents.

Abstract: New di- or oligo-1,2,4-triazolidine-3,5-diones corresponding to the following Formula I: ##STR1## in which R.sup.1 represents a difunctional to pentafunctional organic radical, optionally substituted and/or interrupted by hetero atoms or hetero atom groupsand n=a number of from 2 to 5.The compounds of Formula I are obtained by reaction of 0.9 and 1.1 Mole hydrazodicarbonamide or 1,2,4-triazolidine-3,5-dione with 1/n mole of an amine of the formula R.sup.1 (NH.sub.2).sub.n by elimination of ammonia or by reaction of a monosubstituted hydrazodicarbonamide of the formula (H.sub.2 N--CO--NH--NH--CO--NH).sub.n R.sup.1 by elimination of ammonia. R.sup.1 and n have always the same meaning as in Formula I. The di- and oligo-1,2,4-triazolidine-3,5-diones are valuable starting materials for the production of in 1,2-position oxalkylated or glycidyl group containing intermediates for the production of polymers.

Abstract: New hydroxyalkyl-1,2,4-triazolidine-3,5-diones corresponding to the general Formula I ##STR1## in which R.sup.1 represents a monofunctional to pentafunctional organic radical, optionally substituted and/or optionally interrupted by hetero atoms or hetero atom groups,R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and represent hydrogen, an aliphatic C.sub.1 -C.sub.1 O-radical, a cycloaliphatic C.sub.4 -C.sub.8 radical or an araliphatic C.sub.7 -C.sub.17 -radical, said radicals are optionally substituted by halogen, an aromatic C.sub.6 -C.sub.16 -radical or an aromatic C.sub.6 -C.sub.16 -radical substituted by halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, a and b are the same or different and represent a number of from 1 to 30, and n=a number of from 1 to 5.The new compounds are obtained by oxalkylation reaction using 1,2,4-triazolidine-3,5-diones of Formula I as starting materials in which a and b represent the number 0.

Abstract: A process for the preparation of 1,2,4-triazolidine-3,5-dione, which comprises suspending hydrazodicarbonamide in at least one organic, optionally water-miscible solvent and cyclising it at a temperature in the range of from 150.degree. to 280.degree. C. and at a pressure of from 50 mbar to 5 bar with removal of the ammonia split off from the reaction mixture, and isolating the resulting 1,2,4-triazolidine-3,5-dione after crystallization.

Abstract: A process for the production of modified polyhydantions by reacting polyglycine acid derivatives with optionally masked polyisocyanates with the addition of cyclic anhydride compounds containing at least one further functional group capable of condensation in lactones as solvents.