Abstract: A tri- or tetra-dentate metal complex having the formula ##SPC1##Wherein A is an aryl or heterocyclic residue, B is an aliphatic, aryl or heterocyclic residue, C is an alkylene, cycloalkylene, cycloalkenylene, an aryl or heterocyclic residue, D is an alkyl, an alkylene, an aryl or a heterocyclic residue, X and Y are the same or different and each is an O, S, CO.sub.2 or N--R residue wherein R is an alkyl, cycloalkyl, aryl, aralkyl or heterocyclic residue or R is the atoms required to complete, together with the residue A or D, a heterocyclic residue, m and n are each 0 or 1 with the proviso that the sum of m and n is at least 1, M is a Cu, Zn or Ni metal atom, p is 1 or 2 and when p is 1, F is a hydrogen atom attached to one of the residues A, B, C and D and when p is 2, F is either a direct bond linking two residues A, B, C and D or is an alkylene, arylene or aralkylene residue linking two residues A, B, C and D which is useful for coloring organic material preferably a lacquer, paint or printing ink.

Abstract: Solid particulate materials are bonded together to form a foundry mold or core byI. forming a mixture of the particles and an anaerobically-curing adhesive and moulding the mixture to the desired shape, andIi. causing the adhesive to cure and bond the particles together by maintaining the shaped article in a substantially oxygen-free environment.The anaerobic adhesive may comprise, as monomer, an ester of an acrylic acid, with a hydroperoxide or peroxide as a polymerization catalyst, and the oxygen-free environment may be produced by displacing air with nitrogen or other inert gas or vapor.The method described is particularly suited for the production of foundry moulds and cores from sand or other particulate material.

Abstract: Adducts containing epoxide groups, which have been (so-called) "advanced" with polyesters containing rings are obtained by reacting adducts containing epoxide groups, which have been obtained by reaction of certain long-chain aliphatic polyesters with diepoxide compounds in excess, with polyesterdicarboxylic acids, containing carbocyclic or heterocyclic rings, while heating, 0.3 - 0.5 carboxyl group equivalent of the polyester-dicarboxylic acid containing rings being employed per 1 epoxide equivalent of the adduct containing epoxide groups. Curing of the (so-called) "advanced" adducts containing epoxide groups gives flexible moulded materials which are distinguished, in particular, by high tear propagation resistance.

Abstract: Adducts of polyglycidyl compounds and cyclic ureides containing dialkoxyphosphonomethyl groups, such as 3-dialkoxyphosphonomethylhydantoins or 3-dialkoxyphosphonomethyldihydrouracils, and the use of the adducts for the manufacture of flameproof epoxide resins.

Abstract: Iminoisoindolinone pigments of the formula ##SPC1##WhereinX represents halogen atoms,Y represents a halogen atom, an alkoxy, cycloalkoxy, aralkoxy, aryloxy, alkylthio or arylthio group,R represents an aromatic radical containing a cyclic bound -CONH group, andQ represents an O-atom or the group =N--R and are useful for coloring plastics and lacquers in yellow shades having excellent fastness properties.

Abstract: Curable epoxide resin mixtures based on long-chain adducts containing epoxide groups, which are obtained by reaction of certain long-chain aliphatic polyesters with an excess of diepoxide compounds, polycarboxylic acid anhydrides and linear polyester-dicarboxylic acids containing carbocyclic or heterocyclic rings, which mixtures contain, per 1 equivalent of epoxide groups, 0.2-0.8 mol of polycarboxylic acid anhydride and 0.8-0.2 equivalent of carboxyl groups of the polyester-dicarboxylic acid. Curing of these epoxide resin mixtures gives flexible moulding materials which are distinguished by high tear propagation resistance.

Abstract: The invention relates to new imidyl compounds of the formula Ia and isoimidyl compounds of the formula Ib ##SPC1##In which A denotes a divalent organic radical, especially an ethenylene, ethylene or propylene group. These compounds serve as curing agents for epoxide resins and give cured products with good mechanical and electrical properties.

Abstract: Cyclic acetals of 2-epoxy-propoxy-pivaldehydes. They can be used by themselves, if they contain two or more epoxy groups, or as reactive diluents in a mixture with other epoxide resins, and they give mouldings of excellent mechanical properties on curing with amines or acid anhydrides.

Abstract: The invention relates to 3-dialkoxyphosphonoalkyl-hydantoins and 3-dialkoxyphosphonoalkyl-dihydrouracils. These compounds are manufactured by reacting the hydantoins or dihydroaracils substituted in 3-position by a halogenalkyl group with a trialkyl phosphite. They can be incorporated into polymeric materials or their starting substances and impart to them non-inflammability.

Abstract: New disazo pigments of the formula ##SPC1##R being hydrogen, halogen, alkyl, alkoxy, nitrile, trifluormethyl, aryloxy, phenylsulfonyl or benzoyl, m and n 1 or 2, X hydrogen, halogen, alkyl, alkoxy, nitro, nitrile, trifluormethyl or carboxylic acid ester are prepared. The compounds are useful for pigmenting high molecular weight organic materials such as polyamides, polyurethanes and polyesters.

Abstract: Cyclic acetals of 2-epoxy-propoxy-pivaldehydes. They can be used by themselves, if they contain two or more epoxy groups, or as reactive diluents in a mixture with other epoxide resins, and they give mouldings of excellent mechanical properties on curing with amines or acid anhydrides.

Abstract: The invention relates to new triglycidyl compounds of the formula: ##EQU1## wherein X represents a bivalent alkylene group required for the formation of a 5- or 6-membered heterocycle, and R represents hydrogen or an alkyl group having 1 to 4 carbon atoms.The new triglycidyl compounds are stable in storage and from them are obtained, after curing, synthetic materials having good mechanical strength and high dimensional stability under heat.

Abstract: Process for the manufacture of halogen-containing anthraquinoidal compounds being useful for bulk dyeing high molecular organic compounds and having the formula ##SPC1##Wherein A is an anthraquinoidal radical being free from nitro groups, X is --NH-- or --S--, n is a number of 1 to 4. R.sub.1 to R.sub.

Abstract: Azomethine pigments of the formula ##SPC1##And metal complexes thereof, wherein A denotes an isocyclic or heterocyclic aromatic radical, R denotes a H atom, an alkyl group containing 1-6 C atoms, or an aryl radical, X.sub.2 and X.sub.4 denote H atoms or halogen atoms, X.sub.1 and X.sub.3 denote H atoms or halogen atoms, alkoxy or alkylmercapto groups containing 1-6 C atoms, cycloalkoxy groups containing 5-6 C atoms, or aralkoxy, aryloxy or arylmercapto groups, it being possible for one of the substituents X.sub.1 -X.sub.4 also to be a nitro group which are useful for pigmenting of high molecular material.

Abstract: Iminoisoindolinone pigments of the formula ##SPC1##Wherein the X denote chlorine or bromine atoms are useful for coloring plastics and lacquers in fast yellow shades.

Abstract: The new compound 4-amino-3-aminomethylpiperidine is manufactured by hydrogenating 4-amino-3-cyano-1,2,5,6-tetrahydropyridine under pressure and in the presence of ammonia and a hydrogenation catalyst. The 4-amino-3-cyano-1,2,5,6-tetrahydropyridine used as the starting substance can be obtained by cyclization of bis-cyanoethylenated ammonia. The new compound 4-amino-3-aminomethylpiperidine represents a valuable curing agent for epoxide resins, and advantageously 0.5 to 1.3 equivalents of nitrogen-bonded active hydrogen atoms of the 4-amino-3-aminomethylpiperidine are used per 1 equivalent of epoxide groups of the polyepoxide compound.

Abstract: A tri- or tetradentate metal complex having the formula ##SPC1##Wherein A is an aryl or heterocyclic residue, B is an aliphatic, aryl or heterocyclic residue, R is an alkyl, cycloalkyl, aryl, aralkyl, or heterocyclic residue or R is the atoms required to complete, together with residue B, a heterocyclic residue, R' is a carbon chain, which may form part of a carbocyclic ring, having from 1 to 3 carbon atoms between the X and Y substituents, X and Y are the same or different and each is O, S, N, CO.sub. 2 or N-R wherein R has its previous significance, M is a Cu, Zn or Ni metal atom, p is 1 or 2 and when p is 1, C is a hydrogen atom attached to one of the residues A, B, R and R' and when p is 2, C is either a direct bond linking two residues A, B, R or R', or C is an alkylene, arylene or alkarylene group linking two residues A, B, R or R', which is useful for pigmenting organic material, preferably lacquer, paint or printing ink.

Abstract: Contamination of anaerobically-curing adhesive compositions by minute traces of metals such as iron, either during manufacture or storage, can result in premature polymerization, the shelf life of the composition being severely shortened, or, at best, unpredictable.In the anaerobic adhesive composition now disclosed, at least part of the polymerizable monomer comprises a novel acrylate ester containing a structure of the formula ##EQU1## these esters being capable of chelating the metal contamination.

Abstract: Adducts of cyclic urea derivatives and dialkyl phosphites, containing glycidyl groups, for example adducts of a diglycidyl compound of hydantoins, substituted in the 5-position by alkyl groups or an alkylene group, and of diethyl phosphite or dimethyl phosphite. These adducts are used for the manufacture of flame-retarding plastics.

Abstract: Bis-azomethine metal complex colorants of the formulae ##SPC1##Wherein M denotes a divalent transition metal cation, zinc ion or cadmium ion, X denotes an isocyclic or heterocyclic aromatic radical to which the two nitrogen atoms are bonded in the o- or peri-position to one another and Y.sub.1 and Y.sub.2 denote hydrogen, halogen, alkyl, aryl, nitro, alkoxy, phenoxy or hydroxyl, which are suitable for pigmenting high-molecular organic material.