Abstract: Stabilizers for synthetic polymer compositions are provided which are poly(2,2,6,6-tetramethyl piperidyl amino)-1,3,5-triazines having the formula: ##STR1## in which: R is selected from the group consisting of hydrogen; alkyl, alkenyl, cycloalkyl, hydroxyalkyl and alkoxy having from one to about twelve carbon atoms; acyl having from the one to about twelve carbon atoms; and oxyl;X and Y are each selected from the group consisting of ##STR2## wherein: R.sub.1 is selected from the group consisting of alkyl, hydroxylalkyl and alkylenealkoxy having from one to about twelve carbon atoms; cycloalkyl having from three to about twelve carbon atoms; and aryl having from six to about eighteen carbon atoms;R.sub.2 and R.sub.3 are selected from the group consisting of hydrogen; alkyl having from one to about twelve carbon atoms; cycloalkyl having from three to about twelve carbon atoms; and aryl having from six to about eighteen carbon atoms; and R.sub.2 and R.sub.

Abstract: Compounds of the formula (I) ##STR1## wherein R.sub.1 and R.sub.5 are independently hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl or a group of the formula (II), ##STR2## R.sub.2, R.sub.3 and R.sub.4 are independently C.sub.2 -C.sub.12 -alkylene, R is a group of the formula (III) ##STR3## wherein R.sub.6 is C.sub.2 -C.sub.8 -dialkylamino, C.sub.1 -C.sub.4 -alkoxy, a 5-membered to 7-membered heterocyclic group containing a nitrogen atom which is attached to the triazine residue or a group of the formula (IV), ##STR4## R.sub.7 and R.sub.8 are independently C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, benzyl or a group of the formula (II), subject to the proviso that both, R.sub.1 and R.sub.5 are different from hydrogen, if R is a group ##STR5## are useful as light stabilizers, heat stabilizers and/or oxidation stabilizers for organic materials, in particular synthetic polymers.

Abstract: Acid-curable thermoset enamel compositions coming in contact with copper or copper-containing alloys are discolored and degrade more rapidly due to leaching of copper into the compositions. The presence of small amounts of benzotriazole or tolutriazole effectively prevents the discoloration and concomitantly retards degradation.

Abstract: Flame retardant mixtures of a polyphenylene ether resin, an alkenyl aromatic elastomer, an organic phosphate flame retardant agent and a crosslinking agent are described. They are curable by heating or by exposure to high energy radiation. Articles such as electrical wires and cables comprising insulation made of the composition, and a method of their production, are also disclosed.

Abstract: Products prepared by reacting isopropenyl phenols or bisphenols of the bisphenol-A type with diphenyl amine, phenothiazin or derivatives thereof in the presence of acidic catalysts are used as stabilizers for polyamides and rubbery materials.

Abstract: Synthetic polymer compositions comprise 100 parts by weight of a synthetic polymer and 0.001 to 5 parts by weight of a benzotriazol compound, and thus possesses improved stability.

Abstract: A composition sufficiently irradiated to achieve sterilization comprising:(i) at least one aromatic carbonate resin; and(ii) an antiyellowing upon exposure to sterilizing irradiation effective amount of at least one effective epoxide compound.

Abstract: Compounds of the formula I ##STR1## is hydrogen, chlorine, lower alkyl or lower alkoxy, R.sup.2 is hydrogen or alkyl, R.sup.3 is lower alkenoyl, X and Y are independently --O-- or --NH--, m is 0, 1 or 2 and n is 0 or 1, are suitable as copolymerisable UV stabilizers for polymers obtainable from ethylenically unsaturated monomers. The compounds of the formula I are readily obtainable, and are particularly valuable as UV absorbers by virtue of their good solubility in copolymerisable monomers.

Abstract: Novel tetraglycidates have the formula ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, alkyl of 1 to 8 carbon atoms, perfluoroalkyl, or cycloalkylidene of 5 to 7 carbon atoms. Epoxy resin systems exhibiting good tensile properties and moisture sensitivity can be made by copolymerizing the tetraglycidates with a polyamine curing agent. Prepregs can be made by combining the epoxy resin systems with a fiber reinforcement. The epoxy resin system may include a co-epoxide.

Abstract: Tetramethylpiperidyl terminated triazine oligomeric esters and amides having a plurality of tetramethyl piperidyl moieties are useful as polymer additives to impart resistance to degradation when exposed to actinic radiation.

Abstract: Disclosed is a high energy radiation resistant, polypropylene composition. It consists essentially of substantially crystalline normally solid polypropylene having a narrow molecular weight distribution, and, dispersed therein at a concentration effective to increase substantially the high energy radiation resistance of the polypropylene, a synergistic mixture of:(1) a hindered amine component,(2) a hindered phenolic component, and(3) a phosphorous containing component,the weight ratios of component (1) to component (2) to component (3) being about 1:(0.1-2):(0.1-2).Also disclosed are radiation sterilized articles in which at least part of the material of construction comprises the polypropylene composition.

Abstract: An improved polyamide yarn for tire and industrial applications is prepared by applying to the yarn a finish composition comprising a thio-triazine tert-butylphenol product in effective amounts to provide improved adhesion of the fiber to rubber after aging the yarn.

Abstract: Poly-2,2,6,6-tetramethyl piperidyl amino spiro glycol ether-1,3,5-triazines are provided having the formula: ##STR1## in which: R is selected from the group consisting of hydrogen, alkyl having from one to about eighteen carbon atoms, hydroxyalkyl having from two to about six carbon atoms; epoxyalkyl having from three to about eight carbon atoms; alkylaryl having from seven to about eighteen carbon atoms; acyl having from two to about eight carbon atoms; and oxyl;each of R.sub.1 and R.sub.2 is selected from the group consisting of hydrogen, alkyl having from one to about eighteen carbon atoms; and alkylene forming a heterocyclic ring including the nitrogen atom in the ring and having from four to seven carbon atoms and no or one oxygen atom; andn is a number from 2 to about 40 representing the average number of units enclosed by the brackets;and synthetic resin compositions containing the same as light stabilizers.

Abstract: Disclosed are novel cyclic phosphite compounds having the formula ##STR1## wherein R.sup.1 is hydrogen, alkyl or aralkyl; R.sup.2 is hydrogen or alkyl; R.sup.3 is alkyl or aryl; and R.sup.4 and R.sup.5 each is alkyl. Also disclosed are polyolefin compositions stabilized with one or more of the above compounds.

Abstract: The invention relates to elasthane fibers which are protected against harmful environmental influences, particularly sunlight and combustion gases, by a synergistic stabilizer combination of(a) highly alkylated, phenolic antioxidants corresponding to the following formula ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 are C.sub.1 -C.sub.3 alkyl radicals, in addition to which R.sup.3 may be C.sub.4 -C.sub.6 alkyl radicalsand(b) oligomeric, (cyclo)aliphatic phosphorous acid esters (oligomeric phosphites) obtained by reaction of pentaerythritol, perhydrobisphenol A and, optionally, a mono- alcohol with monomeric trialkyl or triaryl phosphites.

Abstract: Fireproofed thermoplastic molding materials which contain red phosphorus as a flame-proofing agent are obtainable by mixing(A) from 5 to 95% by weight of a polyamide or of a polyester or of a mixture of these,(B) from 5 to 95% by weight of an elastomer dispersion containing, as essential components,(b.sub.1) from 5 to 75% by weight of an elastomer prepared by emulsion polymerization,(b.sub.2) from 10 to 70% by weight of red phosphorus, p2 (b.sub.3) from 10 to 80% by weight of water and(b.sub.4) from 0.1 to 5% by weight of dispersant, and(C) from 0 to 60% by weight of fibrous or particulate fillers or a mixture of these,the total content of red phosphorus in the molding material being from 3 to 20% by weight, based on the total weight of the molding material, and the elastomer composition being introduced into a melt of the polyamide or of the polyester or of a mixture of these.

Abstract: The invention relates to thermoplastic polycarbonate molding compositions comprising a polycarbonate resin and a stabilizing agent conforming to ##STR1## where R.sub.1 and R.sub.2 independently are ##STR2## R.sub.3 is a hydrogen atom, a branched or linear C.sub.1 -C.sub.20 alkyl or a C.sub.1 -C.sub.20 cycloalkyl, and R.sub.5 and R.sub.6 independently are a hydrogen atom or a C.sub.1 -C.sub.3 alkyl, x is an integer of about 1 to 70,y is an integer of about 0 to 70,R.sub.4 is C.sub.2 -C.sub.6 alkyl or cycloalkyl, C.sub.6 -C.sub.10 aryl or C.sub.7 -C.sub.20 alkylaryl or cycloalkylaryl. The agent is homogenically distributed throughout the resin and is present in an amount sufficient to improve the gamma radiation resistance of the composition.

Abstract: A radiation sterilized polysulfone resin composition exhibiting improved color stability comprising: (i) at least one polysulfone resin; and (ii) an amount effective to inhibit yellowing of said polysulfone resin upon its exposure to sterilizing radiation of at least one stabilizing compound selected from carboxylic acid esters, alcohols, epoxides, sulfones, diketones, thio compounds, alkenes, hydroaromatics, cyclic ethers, and mixtures thereof.

Abstract: Polyphenylene sulfide resin compositions are provided having improved light stability and comprising an alkylidene bis(benzotriazolyl phenol) having the formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about eleven carbon atoms;R.sub.2 is selected from the group consisting of alkyl having from one to about twelve carbon atoms; and arylalkyl having from seven to about eighteen carbon atoms; andX is selected from the group consisting of hydrogen; halogen; alkyl having from one to about twelve carbon atoms; aryl alkyl having from seven to about eighteen carbon atoms; alkoxy having from one to about twelve carbon atoms; phenoxy; arylalkoxy having from seven to about eighteen carbon atoms; and phenyl.

Abstract: This invention relates to a process for enhancing the properties of alkylene(C.sub.1 -C.sub.6)-bis-(tetrabromophthalimide) or bis-(tetrabromophthalimide) products produced by the bromination, respectively, of alkylene(C.sub.1 -C.sub.6)-bis-(phthalimide) or bis-(phthalimide) with a brominating agent in the presence of oleum, the process comprising curing the alkylene(C.sub.1 -C.sub.6)bis-(tetrabromophthalimide) or bis-(tetrabromophthalimide) products at a temperature above about 150.degree. C. and below the melting point of the tetrabromophthalimide being cured for a period of from about 36 hours to about 5 hours. This enhanced product and its use in molding and extrusion compositions and in molded and extruded articles is also disclosed.