Abstract: Compounds of the formula ##STR1## in which R is hydrogen or hydroxyl, R.sub.1 is alkyl, alkoxy, amino or aryl, and R.sub.2 is hydrocarbylcarbonyl or hydrocarbylsulfonyl, are highly suitable for stabilizing magenta couplers in photographic materials.

Abstract: N-Allyl and N-methylene-thio substituted naphthalene-1,8- or -1,5-diamine compounds are very effective antioxidant stabilizers for organic material subject to oxidative or thermal degradation, particularly for lubricant compositions.

Abstract: N-Allyl and N-methylene-thio substituted 2,3-dihydroperimidine compounds are very effective antioxidant stabilizers for organic material subject to oxidative or thermal degradation, particularly for lubricant compositions.

Abstract: Compounds of the formula ##STR1## in which R is hydrogen or hydroxyl, R.sub.1 is alkyl, alkoxy, amino or aryl, and R.sub.2 is hydrocarbylcarbonyl or hydrocarbylsulfonyl, are highly suitable for stabilizing magenta couplers in photographic materials.

Abstract: An improved process for preparing dithiobisphenols comprising reacting an appropriate phenol with an alkali metal hydride, an alkaline earth metal hydride or mixtures thereof and subsequently reacting the product thereof with sulfur monochloride.

Abstract: Compounds of the formula I ##STR1## in which R.sub.1 and R.sub.2, independently, denote alkyl with 1 to 6 carbon atoms, cycloalkyl with 5 to 8 carbon atoms, allyl, methallyl, aralkyl with 5 to 9 carbon atoms, phenyl, 1- or 2-naphthyl, or alkaryl with 7 to 9 carbon atoms, R.sub.2 moreover also denotes hydrogen, R.sub.3 denotes hydrogen, alkyl with 1 to 6 carbon atoms, unsubstituted phenyl or phenyl substituted by one or two chlorine atoms and/or one or two methyl groups, B denotes a hetero atom, the group --OC(O)--, --OC(O)--CH.sub.2 CH.sub.2 -- or a direct bond, m is an integer from 0 to 6, and n is an integer from 1 to 6, are prepared by reaction of a thioglycerol derivative with a carboxylic acid containing the hindered phenol moiety in the presence of an acid and are used as antioxidants and thermal stabilizers for lubricating oils, plastics, resins and other organic substrates.

Abstract: Esters and urethanes of certain polydialkylsiloxanepolyoxyalkylene block and graft copolymers which impart high voltage stabilization to dielectric olefin polymers, the stabilized olefin polymer insulating materials resulting therefrom and electric wire or cable insulated therewith.

Abstract: Long chain (4-hydroxyphenyl) propanoate derivatives of the formula ##STR1## are effective in stabilizing organic materials against oxidative and thermal degradation.

Abstract: The title compounds correspond to the formula ##STR1## where R.sub.1 is tert-butyl, R.sub.2 is methyl or tert-butyl, R.sub.3, R.sub.4 and R.sub.7 are hydrogen, R.sub.5 and R.sub.8 are hydrogen or methyl, and R.sub.6 is hydrogen, alkyl of 1 to 3 carbon atoms or phenyl, and are useful as stabilizers for organic polymers and lubricating oils to counteract the degradative effects of heat, light and air.

Abstract: Compounds of the formula I ##STR1## in which R.sub.1 and R.sub.2, independently, denote alkyl with 1 to 6 carbon atoms, cycloalkyl with 5 to 8 carbon atoms, allyl, methallyl, aralkyl with 5 to 9 carbon atoms, phenyl, 1- or 2-naphthyl, or alkaryl with 7 to 9 carbon atoms, R.sub.2 moreover also denotes hydrogen, R.sub.3 denotes hydrogen, alkyl with 1 to 6 carbon atoms, unsubstituted phenyl or phenyl substituted by one or two chlorine atoms and/or one or two methyl groups, B denotes a hetero atom, the group --OC(O)--, --OC(O)--CH.sub.2 CH.sub.2 -- or a direct bond, m is an integer from 0 to 6, and n is an integer from 1 to 6, are prepared by reaction of a thioglycerol derivative with a carboxylic acid containing the hindered phenol moiety in the presence of an acid and are used as antioxidants and thermal stabilizers for lubricating oils, plastics, resins and other organic substrates.

Abstract: The title compounds correspond to the formula ##STR1## wherein A is a monovalent, bivalent, trivalent or tetravalent radical of a mono-, di-, tri- or tetraamine. These compounds are useful as stabilizers for organic polymers and lubricating oils to counteract the degradative effects of heat, light and air.

Abstract: Hindered phenol hydrazones of the formula ##STR1## wherein R.sub.1 and R.sub.2 are alkyl of 1 to 8 carbons or R.sub.1 can also be hydrogen, n is 1 to 6, R' is hydrogen or alkyl, R.sub.3 is alkyl, phenyl, substituted phenyl, alkylenethioalkyl or alkylenethioether ester of a carboxylic acid or a group ##STR2## where T is a direct bond, alkylene, sulfur or oxygen interrupted alkylene or phenylene, said compounds being useful as diene rubber stabilizers.

Abstract: Alkylthioalkanoyloxyalkyl and alkylthioalkyl derivatives of N-heterocyclic moieties are stabilizers for organic materials subject to oxidative, thermal and/or light induced deterioration. They are prepared by classical transesterification, oxirane ring opening and addition of mercaptan to olefin reactions. Typical embodiments are tris[2-(3-n-dodecythiopropionyloxy)ethyl isocyanurate] and 3-(3-n-dodecylthio-2-hydroxypropyl)-5,5-dimethylhydantoin. These compounds are used in conjunction with phenolic antioxidants to stabilize organic materials, particularly polyolefins and hydrocarbon compositions, against the deleterious effects of heat and oxygen and against discoloration.

Abstract: Alkylhydroxyphenylalkanoic acid esters of mono- and polyhydric alicyclic alcohols, prepared by known esterification or transesterification procedures, are stabilizers of organic material subject to oxidative deterioration.

Abstract: The invention relates to a method for combatting dandruff and anti-dandruff shampoos containing compounds having the structural formula in tautomeric form: ##SPC1##And metal salts and complexes thereof wherein R.sub.1 and R.sub.2 are hydrogen, alkyl, cycloalkyl, aryl, alkylthio, halogen, nitro, trifluoromethyl or alkoxy; x is an integer from 1 to 4 and y is an integer from 1 to 2.