Abstract: Novel compositions are described which comprises an elastomer or a lubricant and at least one compound of the formulae I or II ##STR1## The symbols R.sub.1, R.sub.2, R.sub.3, Z.sub.1 and Z.sub.2 are as defined in claim 1.The compounds of the formula II and some of the compounds of the formula I are novel, and they are used especially as antioxidants.

Abstract: Novel compositions are described which comprise an elastomer or a lubricant and at least one compound of the formulae I or II ##STR1## The symbols R.sub.1, R.sub.2, R.sub.3, Z.sub.1 and Z.sub.2 are as defined in claim 1.The compounds of the formula II and some of the compounds of the formula I are novel, and they are used especially as antioxidants.

Abstract: The invention relates to the novel compound 3,9-bis(1,2,2,6,6-pentamethyl-4-piperidyloxy)-2,4,8,10-tetraoxa-3,9-diphos phaspiro[5,5]undecane of formula I ##STR1## This compound can be used as stabilizer for organic material, especially as processing stabilizer for polyethylene and polypropylene.

Abstract: The invention relates to the novel compound 3,9-bis(1,2,2,6,6-pentamethyl-4-piperidyloxy)-2,4,8,10-tetraoxa-3,9-diphos phaspiro[5,5]undecane of formula I ##STR1## This compound can be used as stabilizer for organic material, especially as processing stabilizer for polyethylene and polypropylene.

Abstract: Novel compositions are described which comprise an elastomer or a lubricant and at least one compound of the formulae I or II ##STR1## The symbols R.sub.1, R.sub.2, R.sub.3, Z.sub.1 and Z.sub.2 are as defined in claim 1.The compounds of the formula II and some of the compounds of the formula I are novel, and they are used especially as antioxidants.

Abstract: Composition containing (a) at least one lubricant, hydraulic oil or metal-working fluid based on mineral oil or synthetic oils and (b) 0.05-5% by weight, based on the total weight of the lubricant, hydraulic oil or metal-working fluid composition, of at least one compound of the formula I, ##STR1## where R.sup.1 and R.sup.2 are independently alkyl, aryl, substituted aryl or benzyl, R.sup.3 is hydrogen or methyl, R.sup.4 and R.sup.5 are independently hydrogen, methyl, methoxy, chloro or nitro, R.sup.6 is alkyl, alkenyl, aralkyl or substituted benzyl, and R.sup.13 is hydrogen or methyl.

Abstract: Compounds useful as additives for lubricants, hydraulic oils and metal-working fluids include those of formula IV ##STR1## where R.sup.1 and R.sup.2 are independently alkyl or substituted aryl, R.sup.3 and R.sup.13 are independently hydrogen or methyl, R.sup.6 is alkyl, alkenyl, aralkyl or substituted benzyl, and R.sup.15 and R.sup.16 are independently hydrogen, alkyl, aryl or aralkyl.

Abstract: Composition containing(a) at least one lubricant, hydraulic oil or metal-working fluid based on mineral oil or synthetic oils and(b) 0.05-5% by weight, based on the total weight of the lubricant, hydraulic oil or metal-working fluid composition, of at least one compound of the formula V ##STR1## where R.sup.1 and R.sup.2 are independently alkyl, aryl, substituted aryl or benzyl, R.sup.3 is hydrogen or methyl, R.sup.4 and R.sup.5 are independently hydrogen, methyl, methoxy, chloro or nitro, R.sup.13 is hydrogen or methyl, and R.sup.17 is a direct bond, alkylene or vinylene.

Abstract: There is disclosed a process for the preparation of compounds of formula I or II ##STR1## from phenols by reaction with formaldehyde and mercaptans in the presence of mono-, di- or trimethylamine or mono- or diethylamine.The symbols R.sub.1 is alkyl, hydroxy or alkoxycarbonyl substituted alkyl; alkyl; aryl, cycloalkyl or aralkyl, R.sub.2 is hydrogen, alkyl, alkenyl or halogen, R.sub.3 and R.sub.4 are independently alkyl, allyl, cycloalkyl, phenyl, benzyl, halogen or --CH.sub.2 --S--R.sub.1, Z.sub.1 is --S-- or alkylene, and Z.sub.2 is hydrogen, alkyl or --CH.sub.2 --S--R.sub.1.The mercaptomethylphenols are valuable antioxidants for plastics, elastomers, mineral oils and synthetic lubricants.

Abstract: Composition containing(a) at least one lubricant, hydraulic oil or metal-working fluid based on mineral oil or synthetic oils and(b) 0.05-5% by weight, based on the total weight of the lubricant, hydraulic oil or metal-working fluid composition, of at least one compound of the formula II ##STR1## where R.sup.1 and R.sup.2 are independently alkyl, aryl, subsituted aryl or benzyl, R.sup.3 is hydrogen or methyl, R.sup.4 and R.sup.5 are independently hydrogen, methyl, methoxy, chloro or nitro, R.sup.7 is hydrogen or methyl, R.sup.8 is hydrogen, alkyl, alkylthiomethyl or alkylene, R.sup.9 is hydrogen or methyl and n is 1 to 4.

Abstract: Compounds of the formula I or II, ##STR1## wherein m is 1 or 2, A is branched or unbranched 1,2- or 1,3-alkylene, or o-phenylene, E is a group III or IIIa, R is hydrogen or methyl, R.sup.1 and R.sup.3 are hydrogen, alkyl, alkenyl, aralkyl, alkanoyl, alkenoyl, benzoyl or cyanomethyl, R.sup.2 is a radical of valency m and R.sup.4 is a monovalent radical, are effective processing stabilizers for polymers, in particular for polyolefins, and additionally have a stabilizing action against damage by light.

Abstract: Novel bifunctionalized o-substituted phenols of the formula I ##STR1## are described. Reference should be made to the description in respect of the meaning of the substituents R.sup.1, Y and Z.The novel substances are suitable as stabilizers for organic polymers and for mineral oils or synthetic oils.

Abstract: Compounds of the formula I or II, ##STR1## wherein m is 1 or 2, A is branched or unbranched 1,2- or 1,3-alkylene, or o-phenylene, E is a group III or IIIa, R is hydrogen or methyl, R.sup.1 and R.sup.3 are hydrogen, alkyl, alkenyl, aralkyl, alkanoyl, alkenoyl, benzoyl or cyanomethyl, R.sup.2 is a radical of valency m and R.sup.4 is a monovalent radical, are effective processing stabilizers for polymers, in particular for polyolefins, and additionally have a stabilizing action against damage by light.