Abstract: 1,3,2-oxazaphospholidine derivatives of the formula ##STR1## are effective in stabilizing organic materials against oxidative, thermal and actinic degradation, said derivatives being particularly effective as color improvers and process stabilizers in organic materials containing phenolic antioxidants.

Abstract: The present invention relates to oligomeric tetraalkylpiperidine light stabilizers for polymers, to the preparation thereof from known polyalkyldiazaspirodecanes and epoxides, and to the use thereof for stabilizing polymers against the damaging effect of light, heat and oxygen.

Abstract: Novel diazaspirodecanes of the general formula ##STR1## are prepared from known diazaspirodecane compounds and epoxy compounds or by reacting diazaspirodecane-substituted epoxy compounds with alcohols or amines and are excellent light stabilizers for synthetic polymers.

Abstract: Various substituted aminoxy alkylamine derivatives are effective in stabilizing organic materials against oxidative, thermal and actinic degradation, said derivatives being particularly effective as color improvers and process stabilizers in organic materials containing phenolic antioxidants and/or metal salts of fatty acids and/or hindered amine light stabilizers and/or organic phosphorus compounds; and certain of said derivatives as new compounds.

Abstract: Alkylated N,N-dibenzylhydroxylamine derivatives are effective in stabilizing polyolefin compositions containing a stabilizer or mixture of stabilizers selected from the group consisting of the phenolic antioxidants, the hindered amine light stabilizers, the alkylated hydroxybenzoate light stabilizers, the ultraviolet light absorbers, the organic phosphorus compounds, the alkaline metal salts of fatty acids and the thiosyner-gists, against degradation upon high temperature extrusion, exposure to the combustion products of natural gas, gamma irradiation or upon storage for extended periods.

Abstract: Low-molecular and high-molecular polyalkylpiperidines are suitable as a synergistic mixture for stabilizing organic material, in particular organic polymers. The compounds are substances known per se. Thus, for example, the mixture of ##STR1## is distinguished by a pronounced synergism.

Abstract: The present invention relates to 2,3,2',3'-bis-morpholine derivatives corresponding to the formula ##STR1## The present invention also relates to a process for the preparation of these derivatives and to their use as hydrolysis protective agents for synthetic polymers containing ester groups and/or carbonate groups. Preferred synthetic polymers are polyurethanes.

Abstract: Novel compounds containing piperidine groups, of the general formula ##STR1## in which R.sub.1 is hydrogen, O--, cyanomethyl, C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.12 -alkenyl or -alkynyl, C.sub.7 -C.sub.12 -aralkyl or C.sub.1 -C.sub.12 -acyl, m is an integer from 1 to 12, n is an integer from 1 to 3 and A is an amine radical, are suitable as light stabilizers, heat stabilizers and oxidation stabilizers for synthetic polymers. Processes for their preparation are also described.

Abstract: A peroxide-curable fluoroelastomer composition which can be readily removed from a mold cavity without tearing which comprises a fluoroelastomer whose interpolymerized units consist essentially of units of tetrafluoroethylene, units of perfluoroalkyl perfluorovinyl ether, units of a bromine-containing olefin and, optionally, units of ethylene, and from about 0.05-2 parts per 100 parts fluoroelastomer of an N,N,N',N'-tetrasubstituted 1,8-diaminonaphthalene having the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently alkyl groups of 1-6 carbon atoms, phenyl or benzyl, R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4 can be joined to form a 5- or 6-membered heterocyclic ring in which a carbon atom can be replaced by an oxygen or a sulfur atom, R.sub.1 and R.sub.3 and/or R.sub.2 and R.sub.

Abstract: A rubber composition containing carbon black as a reinforcing filler and a quaternary ammonium salt as a coupling agent and a method of making it are disclosed.

Abstract: A rubber composition containing carbon black and a second particulate filler of kaolin, metakaolin, talc, pyrophyllite coal, coke, graphite or metal carbonate filler and a method of making it are disclosed.

Abstract: Compounds of the formula: ##STR1## are disclosed as light stabilizers for polymers normally subject to degradation by light.

Abstract: Compounds of the formula L-T, where L is an unsubstituted or substituted tetrahydro-1,4-oxazine-2-one group and T is a substituted 4-piperidinyl hindered amine moiety, are effective light stabilizers for polyolefins and other organic polymers.

Abstract: Amines are reacted with phosphorous trichloride to form N-dichlorophosphinoamines that are then reacted with a bisphenol in about equimolar amounts to provide polyphosphoramidite oligomers. The polyphosphoramidite oligomers are effective as stabilizers for polymers such as polyolefins, and form even more efficient stabilizer combinations with hydroxyphenylalkyleneyl isocyanurates.

Abstract: Polysubstituted .alpha.-aminoacetamides of the formula ##STR1## wherein R.sup.1 is tert-alkyl; R.sup.4 is alkyl, phenyl, substituted phenyl, cycloalkyl, piperidinyl, tetraalkylpiperidinyl or an alkylene (.alpha.-aminoacetamide). These compounds are prepared by first reacting an .alpha.-haloacetamide with a base to form an .alpha.-lactam intermediate which in turn is reacted with a primary amine. The compounds are useful as stabilizers of polymeric materials against ultraviolet light degradation.

Abstract: Moulding compositions based on thermoplastic polyesters can be effectively protected against thermal degradation, if they contain, as a first stabilizer, a polyepoxide compound and, as a second stabilizer, a bisoxazoline or a dicarboxylic acid imide or amide.

Abstract: Bis(2,2,6,6-tetramethylpiperidyl-1,3,5-triazinyl)-spirodiamines and spiroglycol ethers are provided, having the formula: ##STR1##

Abstract: Compounds of the formula: ##STR1## wherein at least one of the groups contains a 4-piperidinyl moiety are disclosed as light stabilizers for polymers.

Abstract: A triazolidine-3,5-dione/formaldehyde/amine condensate is disclosed of the formula ##STR1## in which wherein the terms R.sup.1, R.sup.2 and R.sup.5 are defined hereinafter in the specificationa process for the preparation of such condensate by reaction of a triazolidine-3,5-dione with formaldehyde and a suitable nitrogen compound and the use of the condensate as a flame-proofing agent for thermoplastics, especially polyamide and as an auxiliary for modifying polymeric substances.

Abstract: A solid pigment composition comprises an intimate mixture of a pigment and a copolymer of an alkyl or cycloalkyl methacrylate ester and a lesser amount of an aminoalkyl methacrylate ester. The compositions are compatible with a wide range of substrates such as paints, printing inks and bulk polymers.

Abstract: Oligomers prepared from alkoxycarbonylalkyleneamino halotriazines and diamines are useful as light stabilizers for polymers subject to ultraviolet radiation degradation.

Abstract: Compounds of the formula I, II, III or IV ##STR1## wherein X is halogen, OH, --OR.sup.1, --OOCR.sup.2, --OOC--R.sup.4 --COOR.sup.3 or --N(R.sup.5)(R.sup.6), or the two X groups together form a group --O--R.sup.9 --O-- or --OOC--R.sup.9 --COO--, Y has one of the meanings given for X, or it is --NHR.sup.5, --NHNH.sub.2 or --NHNH-phenyl, Z has one of the meanings given for X, or is --SR, and R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.9 and R' are organic radicals having the meanings defined hereinbelow, are thermal stabilizers for chlorine-containing thermoplastics particularly for PVC. Their effect can be further intensified by the addition of co-stabilizers.

Abstract: Oligomers of the formula ##STR1## which contain at least one piperidinyl moiety in the repeating unit are useful as light stabilizers for polymers.