Abstract: A heat-curable lacquer containing a compound having glycidyl groups and a concentrated solution of an organic tetracarboxylic acid or the dianhydride thereof. The lacquer can be used for the manufacture of coatings on tin cans, packages, glass bottles and tubes, and of coil coatings.

Abstract: The resins are diepoxides of the formula ##STR1## where A IS AN INTEGER OF AVERAGE VALUE FROM 1 TO 100,Each R and R.sup.1 represents a group ##STR2## OR --O--(OC).sub.c --R.sup.5 --(CO).sub.c --O--, each R.sup.2 represents --H or a group --(CH.sub.2 NH).sub.d COC(R.sup.6).dbd.CH.sub.2, at least one of the 2a groups R.sup.2 representing --(CH.sub.2 NH).sub.d COC(R.sup.6).dbd.CH.sub.2,each R.sup.3 denotes a lower alkyl group, or conjointly each pair represents a group of formula --CH.sub.2 CH.sub.2 --, --C(R.sup.7 R.sup.8)CO--, ##STR3## --CH.sub.2 CH.sub.2 CH.sub.2 --, --COCO--, --COCOCO--, or --COC(OH).sub.2 CO--,R.sup.4 represents a divalent aliphatic, cycloaliphatic, or araliphatic radical,b, c, and d are each zero or 1,R.sup.5 represents a straight or branched chain aliphatic group or, providing c is 1, it may alternatively represent a group ##STR4## R.sup.6 represents --H or a lower alkyl group, and R.sup.7 and R.sup.8 each represent --H, --CH.sub.3, or --C.sub.2 H.sub.5.

Abstract: Cyclic ketals of sterically hindered 4-oxopiperidines are effective light-stabilizers for organic polymers. These compounds have at least five alkyl groups in ring positions 2,3,5 and 6 and four alkyl groups in ring positions 2 and 6, preferably methyl and ethyl groups. The ring nitrogen may be unsubstituted or substituted with a monvalent substitutent. The new compounds can be synthesized by ketalization of the corresponding 4-oxopiperidines with diols, triols or tetrols. Using triols the obtained ketals possess hydroxyl groups which may be esterified or etherified in a subsequent reaction step. Ketalization with tetrols yields cyclic bis-ketals.

Abstract: A process for preparing an alpha or beta form copper phthalocyanine pigment which comprises dry milling a crude copper phthalocyanine followed by mixing with an aqueous emulsion comprising a liquid amine having from 3 to 20 carbon atoms which is insoluble in water or alkali and soluble in acid and a surfactant which is capable of emulsifying the liquid amine and subsequently acidifying the mixture to dissolve the amine.

Abstract: The incorporation of sterically hindered piperidine derivatives into polyurethanes protects this polymer material against light degradation. Usable for the incorporation are piperidine derivatives which are at least difunctional towards isocyanates and contain the structure ##STR1## wherein R is hydrogen or alkyl having 1 to 5 carbon atoms.

Abstract: Compounds having the formula ##STR1## wherein R.sub.1 and R.sub.2 are lower alkyl or together lower alkylene,R.sub.3 is hydrogen, alkyl, methoxyethyl, alkenyl, propargyl, benzyl, alkyl substituted benzyl, or acyl,R.sub.4 is alkylene of 1 to 4 carbon atoms substituted with alkyl or alkenyl of 1 to 18 carbon atoms, alkenylene of 1 to 4 carbon atoms, cycloalkylene, cycloalkenylene, bicycloalkylene, bicycloalkenylene, or phenylene,M is hydrogen or a metal, andz has a value of from 1 to 4, andEither(a) R.sub.5 is alkyl of 1 to 6 carbon atoms, R.sub.6 is alkyl of 1 to 6 carbon atoms, and R.sub.7 and R.sub.8 are independently hydrogen or alkyl of 1 to 5 carbon atoms, provided that R.sub.7 and R.sub.8 are not both hydrogen, or(b) R.sub.5 and R.sub.6 are together lower alkylene and R.sub.7 and R.sub.8 are independently hydrogen or alkyl of 1 to 5 carbon atoms,Are good light stabilizers.

Abstract: To accelerate the curing of epoxide resins by aromatic, heterocyclic, or cycloaliphatic polyamines there are employed salts of trifluoromethanesulfonic acid.

Abstract: The invention relates to the manufacture of crystalline epoxide resins which exhibit a marked crystallite melt temperature. The formation of the crystallites is caused by molecule blocks which are derived from polyester-polycarboxylic acids, which contain aliphatic radicals in the chain. According to the invention, two aliphatic polyester-polycarboxylic acids (A and B) are reacted under very specific quantitative conditions with epoxide compounds which contain at least 2 epoxide groups and optionally with curing agents. The polyester-polycarboxylic acids A are purely n-aliphatic in character, whereas the polyester-polycarboxylic acids B are not. They contain radicals which are derived from dimerized mono- unsaturated or di- unsaturated fatty acids during the ester formation. These crystalline synthetic resins are particularly suitable for use as material for absorbing solar energy in solar energy collectors.

Abstract: The invention provides a process for producing thin-layered adhesive non-porpous films of lacquer on metal surfaces. An aqueous suspension of a solid thermosetting synthetic resin which contains a special alkylphenyloxethylate and/or a special aminococonut fatty acid oxethylate as wetting agent and optionally extenders is used for the purpose. The synthetic resin is in the form of a fine powder with an average granular size from 0.1 to 10 .mu.m. The film is applied by immersion , spraying, coating, rolling or the like, and the curing is preferably effected at elevated temperatures. The use of mixtures of epoxide resins and phenol-formalehyde resins is preferred.

Abstract: The invention relates to curable mixtures which contain 1,10-substituted 1,10-diaminodecanes, as the curing agents, new 1,10-substituted 1,10-diaminodecanes and a process for the manufacture of the latter.The new 1,10-diaminodecanes are manufactured by catalytic hydrogenation of corresponding 3,12-substituted 1,2-diazo-1,5,9-cyclododecatrienes in the presence of an inert organic solvent, while raising the temperature to at least 120.degree. C.

Abstract: The disazo pigment of the formula ##STR1## in the .beta.-modification thereof, whose X-ray diffraction pattern at an interplanar spacing of 3.33 A.degree. shows a line of very strong intensity, at 5.38 and 8.33 A.degree. lines of strong intensity, at 3.74, 4.24, 4.68, 4.94, 5.18 and 8.70 A.degree. lines of medium intensity, at 4.05, 4.37, 6.33 and 12.6 A.degree. lines of medium to faint intensity, at 3.50, 3.49, 5.65, 6.09, 6.71, 10.6 and 11.5 A.degree. lines of faint intensity.The .beta.-modified pigment is a brilliant yellowish red color and may be used to color high molecular weight organic materials such as polycarbonates, polyvinyl chloride and polypropylene.

Abstract: Disazo pigments of the formula ##STR1## wherein X represents hydrogen or chlorine and Y represents hydrogen or methyl, with X representing chlorine if Y represents hydrogen and X representing hydrogen if Y represents methyl are prepared. The compounds may be used for pigmenting organic materials such as ethyl cellulose, polyesters, and polyvinyl chloride. The compounds have outstanding fastness to light and migration, and good resistance to heat.

Abstract: The invention relates to new triols of the formula ##STR1## wherein R.sub.1 and R.sub.2 denote hydrogen, methyl, ethyl or isobutyl, or together denote tetramethylene or pentamethylene, R.sub.3 denotes hydrogen or methyl, and R.sub.4 denotes hydrogen or methyl or ethyl.The new triols are useful for the manufacture of alkyl resins and polyurethanes having high glass transition temperatures.

Abstract: Mixed complexes of methine dyes of formula ##STR1## wherein M.sub.1 represents zinc, cadmium, lead or manganese, M.sub.2 represents cobalt, copper or nickel, R represents an organic radical, Z.sub.1 represents an oxygen or a sulphur atom or an imino group, X.sub.1 and Y.sub.1 represent hydrogen or halogen atoms, alkyl, alkoxy, alkoxycarbonyl, alkylsulphonyl or alkylcarbamoyl groups of 1 to 6 carbon atoms, nitro, carbamoyl or arylcarbamoyl groups, or the radicals X.sub.1 and Y.sub.1 form a fused benzene ring, X represents a hydrogen atom, Y represents a halogen atom and Z represents a nitro group or a group of formula R.sub.1 Y.sub.2 --, wherein R.sub.1 represents a hydrogen atom, an alkyl or cycloalkyl group of 1 to 6 carbon atoms, an aralkyl or aryl group, and Y.sub.2 represents an oxygen or a sulphur atom, m is 0 to 4, n is 0 to 4, p is 0 to 3, and the sum of m+n+p must be 4, and wherein the atomic ratio of M.sub.1 :M.sub.

Abstract: Novel 7,7,9,9-tetra-substituted-1,3,8-triazaspiro?4.5!decane-2,4-diones having an alkyl or allyl group at either the 6- or the 10- position are useful for the stabilization of polymers against photo- and thermal- deterioration.

Abstract: Compounds of the formula ##STR1## WHEREIN R.sub.1 and R.sub.2 are independently alkyl or hydrogen, provided only one of R.sub.1 and R.sub.2 is hydrogen,R.sub.3 is --(A).sub.q --COOR.sub.4 or CN, where A is alkylene,R.sub.4 is alkyl, phenyl or alkyl substituted phenyl,q is 0 or 1,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 n is 1 when R is hydroxyl, (c) --XR.sub.5 wherein X is S or O, andR.sub.5 is alkyl, phenyl, alkyl substituted phenyl, or when X is O, R.sub.5 is alkanoyl, benzoyl, or alkyl substituted benzoyl, (d) a group of the formula ##STR2## wherein R.sub.6 is phenylene, alkyl substituted phenylene, or alkylene, X is as defined above, and m and n are each 1, (e) a group of the formula ##STR3## wherein R.sub.7 is hydrocarbyldiacyl, R.sub.1, R.sub.2 and R.sub.3 are as defined above, and m is 2 and n is 1, or (f) a group of the formula ##STR4## wherein R.sub.1, R.sub.2 and R.sub.

Abstract: Preparations which contain 10 to 70% by weight of a pigment or a polymer-soluble colorant and 90 to 30% by weight of a carrier mixture which is composed of 51 to 95% by weight of a metal salt of an aliphatic carboxylic acid containing at least 12 carbon atoms, said metal selected from the group consisting of calcium, barium, zinc, aluminum, and magnesium, and of 49 to 5% by weight of an elastomeric or thermoplastic polymer are useful for coloring molten thermoplastic polymers in level shades.

Abstract: A process for the mass coloration or whitening of linear polyesters, wherein the polyester to be colored is mixed, in the solid or fused state, with a preparation consisting substantially of a colorant or fluorescent brightener which is soluble or insoluble in the polyester, and of a polystyrene with a softening point above 100.degree. C, and the resultant mixture, provided it is not already in the form of a melt, is converted into the molten state and formed into shaped articles. Evenly and deeply colored polyesters are obtained.

Abstract: Compounds having the formula ##STR1## wherein X is alkyl, hydrogen, hydroxyl, oxygen radical, alkenyl, CH.sub.2 CH.sub.2 OCH.sub.3 or CH.sub.2 C.tbd.CH;R.sup.1 is alkyl or phenethyl; andR.sup.2 is alkyl,Are good light stabilizers. These compounds are prepared for example, from acetonlyacetone, an appropriate amine hydrochloride and sodium cyanide to give N-substituted 2,5-dimethyl-2,5-dicyanopyrrolidines which are coverted by standard techniques to the corresponding dicarboxylic acid. These esters are prepared by alkylation of appropriate alkali metal salts.

Abstract: Azo pigments of the formula ##STR1## in which R.sub.1 and R.sub.2 denote H atoms, alkyl groups with 1-6 C atoms or aryl radicals, Y denotes an O or S atom or an imino group, Z denotes an O atom or an imino group and Y.sub.1 -Y.sub.4 denote H or halogen atoms, alkyl or alkoxy groups containing 1-4 C atoms, or nitro, trifluoromethyl or alkoxycarbonyl groups containing 2-4 C atoms are valuable pigments coloring plastics, melts, spinning solutions, lacquers paints and printing inks in yellow to red shades of high tinctorial strength and excellent fastness properties.