Abstract: Stabilization system consisting of a triarylphosphite of the general formula ##STR1## wherein R.sub.1 represents tert.-butyl, 1,1-dimethylpropyl, cyclohexyl or phenyl, and one ofR.sub.2 and R.sub.3 is hydrogen and the other is hydrogen, methyl, tert.-butyl, 1,1-dimethylpropyl, cyclohexyl or phenyl,and a phenolic antioxidant, for stabilizing polyolefins.

Abstract: Nickel complexes containing ortho- or para-hydroxybenzoate anions and a non-ionic amine ligand are valuable light-stabilizers for polymers, particularly for polyolefins. The complexes may also contain a second carboxylate anion, different from the benzoate anion, and in this case also the amine-free nickel compounds show a high stabilizing action.

Abstract: New phosphonites of the formula ##STR1## wherein R.sub.1 and R.sub.2 independently of one another are a substituted or unsubstituted hydrocarbon radical, or halogen,x and y independently of one another are 0, 1, 2 or 3,n is 2, 3, 4, 5 or 6, andR.sub.3 is a n-valent substituted or unsubstituted aliphatic, alicyclic, aromatic, araliphatic or heterocyclic hydrocarbon residue as stabilizers for organic materials.

Abstract: Compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 are independently lower alkyl or hydrogen, provided that only one of R.sub.1 and R.sub.2 is hydrogen,R.sub.3 is --(A)--COOR.sub.4 or CN whereA is alkylene of 1 to 24 carbon atoms,R.sub.4 is alkyl of 1 to 24 carbon atoms, phenyl or alkyl substituted phenylq is 0 or 1m and n are each 1 or 2, the values of m and n being such that the trivalent state of is satisfied, andR.sub.5 is alkanoyl, benzoyl, or alkyl substituted benzoyl, are suitable for stabilizing organic material against thermal, oxidative and ultraviolet light degradation.

Abstract: Compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 are independently lower alkyl or hydrogen, provided that only one of R.sub.1 and R.sub.2 is hydrogen,m and n are each 1 or 2, the values of m and n being such that the trivalent state of P is satisfied,R is(a) halogen,(b) hydroxyl, provided that m is 2 and n is 1 when R is hydroxyl,(c) --XR.sub.5 wherein X is S or O and R.sub.5 is alkyl of 1 to 24 carbon atoms, phenyl, alkyl substituted phenyl, are suitable for stabilizing organic material against thermal, oxidative and ultraviolet light degradation.

Abstract: Compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 are independently lower alkyl or hydrogen, provided that only one of R.sub.1 and R.sub.2 is hydrogen,R.sub.3 is --(A).sub.g --COOR.sub.4 or CN whereA is alkylene of 1 to 6 carbon atoms,R.sub.4 is alkyl of 1 to 24 carbon atoms, phenyl or alkyl substituted phenyl, andq is 0 or 1 are suitable for stabilizing organic material against thermal, oxidative and ultraviolet light degradation.

Abstract: A monoazo pigment of the formula ##STR1## wherein R.sub.1 denotes a halogen atom or an alkyl or alkoxy group containing 1-4 carbon atoms, R.sub.2 denotes a H atom, an alkyl group containing 1-4 carbon atoms or a phenyl group, X denotes a --NH-- or --CH.sub.2 O group, Y denotes an O atom or S atom or an imino group and Z denotes an O atom or an imino group are prepared. The pigments may be used to color high molecular weight organic materials such as polyamides, polyesters and polyolefins. The pigments possess excellent fastness to light, weathering and migration.

Abstract: Polyalkylpiperidines of formula I, ##STR1## wherein R.sup.1 is H or lower alkyl, R.sup.2 is H, O or a monovalent organic residue and Z is a divalent aromatic residue, are excellent light stabilizers for plastics. These compounds can be prepared from the according 4-oxopiperidines by Wittig-Horner reaction with diphosphonates of the formula IV,(ro).sub.2 (o)p--ch.sub.2 --z--ch.sub.2 --p(o)(or).sub.2 ivwherein R denotes lower alkyl, and subsequent hydrogenation of the resulting diolefines. The compounds of formula I are especially suitable for the stabilization of polyolefins, styrene polymers and polyurethanes.

Abstract: Bis-isoindoline pigments of the formula ##STR1## wherein A represents a carbocyclic or heterocyclic aromatic radical,Q represents an oxygen atom or an imino group,E represents a cyano or acetyl group, a group of the formula --COOR, wherein R represents a C.sub.1 -C.sub.4 -alkyl group or a phenyl group which is unsubstituted or substituted in the o-, p- or m-position by halogen atoms, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy groups, or represents a group of the formula --CONHR.sub.1, wherein R.sub.1 represents a hydrogen atom, a C.sub.1 -C.sub.4 -alkyl group or a phenyl group which is unsubstituted or substituted in the o-, p- or m-position by halogen atoms or C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy groups,X represents a hydrogen atom,Y represents a chlorine or bromine atom,M and n are integers from 0 to 4,P is an integer from 0 to 1, while the sum of m+n+p must be 4, andZ if p is 1 and m is 3, represents a nitro or C.sub.2 -C.sub.

Abstract: The invention relates to compounds of the general formula I ##STR1## wherein R.sub.1 and R.sub.2 independently of one another are C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl or C.sub.7 -C.sub.9 -aralkyl,R.sub.3 is --CN or a group either of the formula II or III--(c.sub.n H.sub.2n)--COOR.sub.4 (II)or--[(C.sub.n H.sub.2n)--COO].sub.q M.sup.q+ (III)wherein n is 0 to 6,R.sub.4 is C.sub.1 -C.sub.24 -alkyl, phenyl, or alkyl-substituted phenyl having 1-12 C atoms in the alkyl moiety,Q is 1, 2 or 3,M.sup.q+ is H.sup.+ or a mono-, bi- or trivalent metallic cation, andX.sub.1 and X.sub.2 are --O-- or --S--, which are suitable as antioxidants and light stabilizers for organic material.

Abstract: Organic materials are stabilized against oxidative and ultraviolet light degradation by incorporating therein polyalkylthiobenzenes having the formula ##STR1## WHEREIN R is alkyl or cycloalkyl, R' is alkyl, n is 2 to 6 and x is 0 to 4, provided that n+x is not greater than 6.

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: The invention is directed to fluorinated compounds of the formula ##STR1## wherein R.sub.f is a perfluoroalkyl or perfluoroalkoxyperfluoroalkyl group, R.sup.1 is a branched or straight chain alkylene, alkylenethioalkylene, alkyleneoxyalkylene or alkyleneiminoalkylene group, X is oxygen or an amino group, Q is an organic group containing at least one amino group and y is zero or 1, and the corresponding succinimides. These compounds are useful as surfactants.

Abstract: Polyalkylpiperidinyl esters of diazocarboxylic acids are prepared, which compounds protect organic polymers against UV light degradation. The light stabilizers have the ability to react with the organic polymeric substrates thus making the piperidinyl esters migration and extraction resistant. Polymers which may be stabilized with the compounds of this invention include polypropylene, polyethylene, polystyrene and polyamides.

Abstract: A compound having the formula ##STR1## wherein A denotes an optionally substituted aromatic, isocyclic or heterocyclic residue; R is H, an alkyl residue having from 1 to 6 carbon atoms, an aryl residue having from 6 to 10 carbon atoms or an aralkyl residue having from 7 to 10 carbon atoms; Q is H or a methyl group; X and Y are the same or different and each is a non-water solubilizing group, or X and Y together form a fused aromatic ring system; and R.sub.1 and R.sub.2 are the same or different and each is H or an alkyl radical having from 1 to 22 carbon atoms, and R.sub.3 is hydrogen, an alkyl radical having from 1 to 22 carbon atoms or an aryl radical having from 6 to 10 carbon atoms, the alkyl radicals in R.sub.1, R.sub.2 and R.sub.3 being unsubstituted and uninterrupted or being substituted by an OH, NH.sub.2 or CN group and/or being interrupted by an ethylenic group or an oxygen, sulphur or nitrogen bridge, or two or all three of R.sub.1, R.sub.2 and R.sub.

Abstract: Isoindolinone pigments of the formula ##STR1## wherein R represents an aliphatic or cycloaliphatic radical, a cycloaliphatic, aromatic or heterocyclic radical to which the oxygen atoms are attached through alkyl or alkoxy groups, V.sub.1 and V.sub.2 represent hydrogen or halogen atoms, alkyl or alkoxy groups of 1 to 4 carbon atoms, X represents a halogen atom, Y and Z represent halogen atoms, alkoxy or alkylmercapto groups of 1 to 6 carbon atoms, cycloalkoxy groups of 5 to 6 carbon atoms, aralkoxy, aryloxy or arylmercapto groups, and n is an integer from 2 to 6, are valuable pigments coloring plastics, lacquers and printing inks in various yellow shades of excellent fastness properties and high color strength.

Abstract: A metal complex having the formula ##STR1## or the formula ##STR2## 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 an aromatic or heterocyclic ring and containing 2 or 3 carbon atoms between the nitrogen atom and the substituent Y, 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 Cu, Zn or ni, p is 1 or 2 and when p is 1, E is a hydrogen atom attached to one of residue A, B, R of R', and when p is 2, E is either a direct bond linking two residues, A, B, R or R' or is an alkylene, arylene or aralkylene residue linking two residues, A, B, R or R', which is useful for pigmenting organic material, preferably a lacquer, paint or printing ink.

Abstract: A process for the production of alpha-, beta-, and gamma-copper phthalocyanine pigments by reacting an aromatic or aromatic heterocyclic ortho-dinitrile compound and copper or a copper compound capable of providing the centrol metal atom of a phthalocyanine pigment at a temperature below 100.degree. C. in the presence of a alkaline substance in a hydrophilic aliphatic organic solvent containing one or more hydroxy groups and adding as catalyst or crystal form controller or both from the beginning of the reaction:(a) for alpha-, beta- or gamma pigments, a copper phthalocyanine in conventional pigmentary form or(b) for alpha pigments, a copper phthalocyanine derivative with a limited degree of substitution.

Abstract: The invention relates to a process for the manufacture of aminoalkyl-phosphonic acid esters by catalytic hydrogenation of cyanoalkylphosphonic acid esters. After having separated the catalyst and solvents, in general the crude product is distilled.The esters which can be obtained by the process of this invention are of importance as intermediate products, because all reactions of amines can be carried out with these products. They can also be used as additives for amine curing agents for epoxide resins in order to achieve flame-retarding properties.

Abstract: 2,5-di-(.omega.-aminoalkyl-1')-pyrazines are obtained by catalytic hydrogenation of nitro compounds of the formula ##STR1## They are suitable as hardeners for epoxides or for the manufacture of polyamides.