Abstract: Fibers and fabrics formed from polypropylene as well as other polyolefins and high polymers, are rendered flame retardant by the addition of a bromophenyl compound having the following formula: ##STR1## wherein n is 0 or 1; X is bromine, hydrogen, hydroxyl, or alkyl; and wherein the alkyl portion of these groups may contain hydroxyl and/or oxygen; and wherein the alkyl is preferably a lower alkyl (C.sub.1 -C.sub.4); and wherein there is at least one bromine for each phenyl radical; and a tris (hydroxybenzyl) isocyanurate, particularly tris (3,5-di-t-butyl-4-hydroxybenzyl) isocyanurate. The composition of formula (I) and the isocyanurate are blended into the polymer in the forming operations and the polymer blend is thermally extruded to form a fiber which fiber exhibits exceptionally high flame retardancy, as well as a good white appearance upon extrusion so as to be readily dyed without grey overtones.

Abstract: A glass-reinforced, fire-retardant, arc-track resistant composition characterized in that it contains:(a) at least 35% by weight of a fibre-forming polyamide,(b) 15 to 25% by weight of glass fibres,(c) 16-30% by weight of melamine cyanurate,(d) 2 to 7% by weight of the condensation product of 2 moles of chlorocyclopentadiene and 1 mole of 1,5-cyclooctadiene, and an amount of(e) a fire retardant synergist selected from antimony oxide, iron oxide and stannic oxide,to give a weight ratio of (d) to (e) between 1:1 and 5:1, and wherein the constituents of the composition total 100%.

Abstract: Substituted 2-(2,6-di-t-butyl-4-alkylphenoxy)-4H-1,3,2-benzodioxaphosphorins that are readily prepared, for example from hindered phenols and ortho-methylolphenols, are effective heat and anti-oxidant stabilizers for organic materials subject to degradation by heat and oxygen, and provide particularly efficient stabilizer systems when combined with hydroxyphenylalkyleneyl isocyanurates.

Abstract: Disclosed are stabilized polyester compositions having significantly improved weatherability, said polyesters consisting of homopolyesters derived from a dicarboxylic acid component wherein at least a major portion of which is 1,4-cyclohexanedicarboxylic acid (or ester) having a trans isomer content of at least 65% and a glycol component wherein at least a major portion of which is 2,2,4,4-tetramethyl-1,3-cyclobutanediol and copolyesters thereof with modifying aliphatic glycols and/or aliphatic dicarboxylic acids, said polyesters being stabilized with the combination of at least one ultraviolet light stabilizing compound compatible with said polyester and at least one hindered amine light stabilizer having the formulae ##STR1## the groups shown as R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently selected from various substituents.

Abstract: Disclosed are stabilized polyester compositions having significantly improved weatherability. These polyesters consist of copolyesterethers derived from a dicarboxylic acid component comprising about 80-100 mole % 1,4-cyclohexanedicarboxylic acid having a trans isomer content of at least 70% and about 0-20 mole % of a second dicarboxylic acid and a glycol component comprising about 70-95 mole % 1,4-cyclohexanedimethanol and about 5-30 mole % of a polyalkylene ether glycol having a molecular weight of about 600 to about 3000. The copolyesterether compositions further comprise a stabilizing effective amount of the combination of (1) at least one hindered phenolic antioxidant, (2) at least one ultraviolet light stabilizing compound compatible with said copolyesterether and (3) at least one hindered amine light stabilizing compound having the formulae ##STR1## the groups shown as R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently selected from various substituents.

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: Tris (3,6-di-t-butyl-2-naphthyl) phosphite is a heat and hydrolysis resistant stabilizer for organic materials subject to heat and ultra-violet degradation, and in combination with hydroxy-phenylalkyleneyl isocyanurates, provides a useful synergistic combination for use in polymers, particularly hydrocarbon polymers including the poly(olefins).

Abstract: Polyamide moulding compositions containing triazolidine-3,5-diones or reaction products thereof as flame retarding agents.

Abstract: The present invention relates to solutions of isocyanato-isocyanurates based on mixtures of (i) 2,4- and/or 2,6-diisocyanato-toluene and (ii) 2,2'-, 2,4'- and/or 4,4'-diisocyanato-diphenyl methane in a molar ratio of (i) to (ii) of about 5:1 to 1:3, in plasticizers for polyvinyl chloride wherein the isocyanato-isocyanurates comprise about 1 to 50% by weight of the solution. The present invention also relates to a process for preparing these solutions which comprise partially trimerizing the isocyanate groups of the above diisocyanates using catalysts which accelerate the trimerization of isocyanate groups, the reaction either being conducted in the presence of plasticizers for polyvinyl chloride or the reaction product being dissolved in a plasticizer of this type, optionally after the separation of excess, unreacted diisocyanate.In addition, the present invention relates to the use of these solutions as adhesion-improving additives for coating compositions based on polyvinyl chloride.

Abstract: The instant invention relates to thermoplastically processable polyamides which are rendered flame retardant by means of a new flame retarding agent; the conversion product of cyanuric acid and triazine compounds having free --NH.sub.2 in a molar ratio of at least 2 triazine nuclei per mole of cyanuric acid. The properties of polyamide thermoplasts are changed only slightly through the incorporation of the new flame retarding agent.

Abstract: A thermally stabilized polyetherimide composition is disclosed which contains a polyetherimide and a stabilizing amount of an antioxidant having a molecular weight of 400 and is selected from the group of hindered phenols, aryl phosphonites, organic phosphites, thioesters or mixtures thereof. The stabilized polyetherimides exhibit a prolonged stability under conditions of elevated temperatures.

Abstract: Irradiation-sterilizable medical articles molded from a propylene polymer composition in which stabilizers are incorporated. Said composition comprises from 0.01 to 0.4 part by weight of each of a specific hindered amine and a specific phenol or its phosphite ester compound incorporated per 100 parts by weight of a propylene polymer with a weight-average molecular-weight to number-average molecular-weight ratio of 5 or below. The above-mentioned composition may additionally contain a sorbitol derivative as the nucleating agent. Medical articles produced from said composition by molding, for example, syringes are suitable for irradiation sterilization. Said medical articles when irradiated undergo little reduction in quality of the material and are accompanied by little bleeding or degradation of the incorporated stabilizers and nucleating agent.

Abstract: A novel stabilizing mixture composed of 1 1,3,5-tris 2-[3-(3-t-butyl-4-hydroxy-5-methyl-phenyl)-propionyloxyl] ethyl isocyanuric acid (I) and at least one sulfur-containing compound (II) selected from compounds represented by the general formulas (II-1) and (II-2): ##STR1## wherein R.sub.1 is an alkyl group having 4 to 20 carbon atoms, and ##STR2## wherein R.sub.2 is an alkyl group having 3 to 18 carbon atoms, and R.sub.3 and R.sub.4 each independently is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, is useful as a stabilizer for synthetic resins.

Abstract: Novel stabilizers for organic materials subject to degradation, 2,4,6-tris(substituted phenoxy)-1,3,5,2,4,6-trioxatriphosphorinanes are prepared by the reaction of substituted-phenylphosphorodichloridites, water and amines. The 2,4,6-tris(substituted phenoxy)-1,3,5,2,4,6-trioxatriphosphorinanes, form effective stabilizer combinations with hindered and partly hindered phenols such as hydroxyphenylalkyleneyl isocyanurates, particularly when used in polymers, polyolefins, for example.

Abstract: Flame retardant reinforced with polyester resin compositions are disclosed glass fiber and a system of flame retardants represented by the following general formulas (I) and (II), together with antimony trioxide. The flame retardant system is a blend of 1-20 parts by weight of component (I), and 2-30 parts by weight of component (II), provided the weight ratio (I)/(II) of the flame retardant component (I) to (II) is in the range of 0.2<(I)/(II)<4, and that the total amount of flame retardants (I) plus (II) is in the range of 3-40 parts by weight. From 2 to 30 parts by weight of antimony trioxide is present and 5 to 60% by weight of glass fiber is also present, these two percentages being expressed on the basis of the weight of the total resin composition. The resin compositions exhibit outstanding mechanical, thermal properties and moldability in addition to being fire retardant.

Abstract: Saturated aliphatic polyesters having a repeating unit which has the structural form of a residue of a glycol combined with a residue of a diacid or the form of a residue of a hydroxy acid, the number of carbon atoms in the shortest chain between ends of the residues being in the range of 3 to 10 for the glycol residue and no more than 12 for the diacid residue or for the hydroxy acid residue, provide polyether-based spandex fibers with improved resistance to discoloration induced by exposure to nitrogen dioxide fumes.

Abstract: Polyamide compositions having improved flame retardant properties and arc tracking resistance comprises, in percent by weight, about 35 to about 76 percent polyamide; about 6 to about 10 percent zinc borate; about 10 to about 15 percent melamine cyanurate; 0 to about 35 percent glass fiber; about 0 to about 3 percent antimony trioxide; and about 8 to about 15 percent of a chlorinated compound of the formula: ##STR1##

Abstract: N,N,N-tris(2,2,6,6-tetramethyl-4-piperidone ketal)-1,3,5-triazines are provided, having the formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about four carbon atoms; andR.sub.2 is selected from the group consisting of hydrogen; oxyl O; alkyl, hydroxy alkyl and epoxyalkyl having from one to about eighteen carbon atoms; alkanoyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about eighteen carbon atoms; phenyl; phenalkyl and alkylphenyl having from seven to about twenty-four carbon atoms; as well as synthetic resin compositions having an improved resistance to deterioration and containing such compounds.

Abstract: Hitherto unknown polyalkylpiperidinylaminotriazines having a structure of the type ##STR1## are obtained from halogenotriazinyl compounds and aminoethylaminoethanols and can be converted into further derivatives with isocyanates, esters and acid chlorides to give new stabilizers for polymers, which stabilizers are distinguished by very good migration resistance.

Abstract: 3,6-di-t-butyl-2-naphthyl catechol phosphite is readily prepared by the reaction of catechol phosphorodichloridite and 3,6-di-t-butylnathphol in the presence of a trialkyl amine in a solvent. The 3,6-di-t-butyl-2-naphthyl catechol phosphite is an excellent stabilizer for polymers, including polypropylene, and forms synergistic combinations with hydroxyphenylalkyleneyl isocyanurates that provide excellent resistance to polymer breakdown during processing.

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

Abstract: An isocyanuric acid derivative useful as a stabilizer for organic substances, which is represented by the general formula ##STR1## wherein A represents ##STR2## R being an alkyl, cycloalkyl, aryl or aralkyl group having 1 to 8 carbon atoms; a process for preparing same; organic substances stabilized with same; and a method of stabilizing an organic substance.

Abstract: Compounds which contain, in their molecule, at least one 2-(2'-hydroxyphenyl)-benztriazole group or one 2-hydroxybenzophenone group and at least one polyalkylpiperidine group are effective light stabilizers for organic materials, in particular for polymers. The use of the compounds as light stabilizers for lacquers is of particular importance.

Abstract: New esters and urethanes containing polyalkylpiperidylaminotriazine groups of the formula ##STR1## are prepared from carboxylic acid exters or isocyanates and triazinyl alcohols. The compounds are valuable stabilizers for polymeric materials.

Abstract: Ortho-alkylated phenyl phosphonites of the formula ##STR1## wherein R.sup.1 is alkyl, phenyl or phenyl substituted by alkyl, R.sup.2 is tertiary alkyl or phenylalkyl, and R.sup.3 is hydrogen, alkyl or phenylalkyl are useful as stabilizers for organic polymers and lubricating oils, particularly as processing stabilizers for polyolefins.

Abstract: Phenolic-phosphite antioxidants for use alone in polyolefins or in admixture with synergists, phenolic/phosphite antioxidants, and the like. The adduct formed by reacting a phosphorus trihalide, preferably PCl.sub.3, with 1,3,5-trimethyl-2,4,6-tris(3',5'-di-tert-butyl-4'-hydroxybenzyl)benzene, e.g., is useful for antioxidant activity in organic materials. Various other phenolic adducts also show antioxidant activity. The adducts are formed by reacting PCl.sub.3, e.g., with a large phenolic compound having three or more phenolic moieties. The adducts contain components which are noncyclic with respect to phosphite moieties.

Abstract: A flame retardant diaphragm for speakers, etc. comprises an admixture of natural fibers and inorganic fibers. The admixture is impregnated with a thermosetting resin and an organic bromine compound, and heat-treated under pressure. The organic bromine compound acts as a flame retarder.

Abstract: There are described certain polymeric compositions which are made flame retarding, provide an incandescent char-forming crust, are not dropping and do not promote toxic fumes, in view of the addition, on 100 parts in weight of polymer, of 5-40 parts in weight of the reaction product between an acid of the phosphorus and at least a hydroxyalchyl derivative of at least a compound selected between the isocyanuric acid, the melamine and the urea, and, in a modified embodiment, in addition to the above indicated reaction product, of 5-30 parts in weight of a polymer of an ammonium polyphosphate of formula (NH.sub.4 PO.sub.3).sub.n", wherein n" is greater than 20. In a further modified embodiment there is added amine phosphate, such as the ortho- or pyrophosphate of melamine, in amount of 1-10 parts in weight. The reaction product as above comprises in its molecule the formulaN--(R).sub.

Abstract: The invention relates to electrical insulation material of a polyolefin composition containing an additive which prevents the formation of so-called water trees. Barbituric acid compounds are the additives and include barbituric acid, 2-thiobarbituric acid or substituted barbituric or thiobarbituric acid derivatives. The electrical insulation according to the invention is suited particularly for use in cables and wires.

Abstract: Self-extinguishing thermoplastic polyamide moulding compositions containing barbituric acid and/or reaction products thereof as flameproofing agent.

Abstract: Various antioxidant-protected polyolefins are protected against initial discoloration from processing, subsequent discoloration, loss of whiteness, and yellowing with time and upon exposure to elevated temperature by addition of various compounds such as triisopropanolamine, bipyridines, and N,N-bis-(2-hydroxymethyl)soyaamine.

Abstract: A flame-retardant polyamide resin composition having an excellent flame-retarding property clearing over the level V-0 of the UL-94 Standard contains a flame retarder consisting essentially of:(1) a first flame-retarder component consisting essentially of at least one melamine derivative of the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 represent, independently from each other, a divalent hydrocarbon radical having 1 to 15 carbon atoms and n represents zero or an integer of 1 to 5, and(2) a second flame-retarder component consisting essentially of at least one member selected from unsubstituted and substituted melamine cyanurate compounds and unsubstituted and substituted organic carboxylic acids and anhydrides having a boiling point and/or a decomposition point higher than the melting point of the polyamide resin matrix.

Abstract: Heat-curable compositions comprising an ester of an ethylenically unsaturated acid and a polyhydric alcohol, an oxopropyl isocyanurate formed by the addition of from 2 to 3 moles of acrolein to 1 mole of isocyanuric acid and a free radical or ionic initiator. The compositions are useful as coatings, adhesives and the like.

Abstract: A polyacrylonitrile fiber which has flame-retardant properties, is produced by dry spinning, has an acrylonitrile content of at least 85% by weight in the parent polymer and contains as flame retarder 15 to 40% by weight of tris-2,3-dibromopropyl isocyanurate, based on the polymer. The flame-retardant effect can be further increased by a content of up to 10% by weight of one or more synergistic compounds.

Abstract: Sterically hindered 4-substituted-2,6-di-t-butylphenyl bis (substituted phenyl)phosphites form effective and improved antioxidant combinations with hydroxyphenylalkyleneyl isocyanurates. These systems provide enhanced antioxidant activity activity in organic materials subject to degradation by heat and oxygen, and are especeially effective in polymers such as the poly(olefins) represented by poly(propylene). The triphenyl phosphites are readily prepared by reacting a 2,6-di-t-butyl-4-substituted-phenylphosphorodichloridite with a sodium salt of a 2-t-butyl-substituted phenol.

Abstract: 2-[Alkyl substituted-phenoxy]-2,3-dihydro-1,2-benzoxaphosphole 2-oxide, cyclic phosphonates prepared, for example from hindered phenols and ortho-methylolphenols, are effective heat stabilizers and antioxidants for organic materials subject to degradation by heat, oxygen and the like, and result in effective stabilizer systems when combined with hydroxyphenylalkylenyl isocyanurates.

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: An electroconductive polyolefin composition comprising (a) 100 parts by weight of a polyolefin resin, (b) 10 to 60 parts by weight of carbon black, (c) 0.1 to 6 parts by weight of sulfur and (d) 0.1 to 5 parts by weight of trithiolcyanuric acid, and optionally containing 5 to 60 parts by weight of atactic polypropylene.

Abstract: In producing a crosslinked polypropylene foam, 0.5 to 4 parts by weight of a compound selected from triacrylate and trimethacrylate of aliphatic polyhydric alcohol and a blowing agent are mixed with 100 parts by weight of propylene homopolymer or copolymer. Then, the mixture is shaped under heat, followed by irradiation with an ionizing radiation such that the dose of the radiation absorbed by the shaped mass ranges between 0.1 and 10 Mrad. Finally, the irradiated mass is heated for foaming.

Abstract: 1,3-dihydroxy-4,6-bis-4'-(2',2',6',6',-tetramethylpiperidyl) benzene, its 1'-alkyl or 1'-(substituted alkyl) derivatives and monomeric or polymeric products derived from these compounds by substitution of 1- and 3-hydroxy groups and/or by the linking of hydroxy groups on adjacent units through a bridging groups, are useful as light and heat stabilizers for polymeric organic materials.Corresponding bis(3',4'-dehydro) unsaturated compounds are useful as intermediates.

Abstract: 2,6-Di-t-butyl-4-substituted phenyl bis(3,6-di-t-butyl-2-naphthyl)phosphites, readily prepared by reacting together a phosphorodichloridite of a 4-substituted-2,6-di-t-butylphenol and a sodium salt of 3,6-di-t-butyl-2-naphthol, to form antioxidant and ultraviolet stabilizers that form particularly effective combinations with hydroxyphenylalkyleneyl isocyanurates to provide enhanced oven aging properties to organic materials subject to attack by heat and oxygen.

Abstract: An organic high polymer composition having an improved flame retarding property which is obtained by incorporating into a flame resistive composition comprising (a) an organic high polymer substance, (b) an organic flame retarder and (c) incombustible active inorganic powder (d) a polyfunctional compound and (e) an organic compound represented by the formula: ##STR1## wherein Z is an oxygen atom or a sulfur atom, A is a C.sub.2 -C.sub.20 divalent hydrocarbon group having or not substituents and forming a ring together with the adjacent two carbon atoms and B, and B is an oxygen atom or an amino group: --NY-- (Y being a hydrogen atom, a halogen atom or an organic group having not more than 30 carbon atoms) or its hydrolyzate.

Abstract: An olefin polymer composition containing an ultraviolet light stabilizer. The ultraviolet light stabilizer is a zerovalent nickel complex the organic portion of which is an ester of pentaerythritol phosphite.

Abstract: Diazaspirodecanes of the general formulae ##STR1## are reacted with epoxides or aldehydes to give alcohols and the latter are reacted with bifunctional compounds to form oligomers or polymers which can be used as light stabilizers for synthetic polymers. The alcohols can also be obtained if epoxy compounds which are substituted by the above diazaspirodecanes are converted into their formic acid esters and the latter are saponified.

Abstract: A polycarbonate such as bisphenol-A homopolycarbonate containing a small amount of a barbituate, e.g., sodium 2-thiobarbituate, resists combustion upon exposure to a low temperature ignition source.

Abstract: The present invention relates to dimedone functional self-bonding room temperature vulcanizable silicone rubber compositions. The self-bond additive is selected from silyl maleates, silyl fumarates, silyl succinates, silyl isocyanurates and mixtures thereof. Preferably the self-bonding additive is prereacted with the cross-linking agent before they are incorporated into the RTV composition. This prereaction of the self-bonding additive and the cross-linking agent imparts shelf-stability to the composition.

Abstract: A stabilized polyisoprene composition comprising 100 parts by weight of polyisoprene and 0.15-3.0 parts by weight of a binary system antioxidant consisting of 50-99% by weight of a phosphite type antioxidant represented by the formula, ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are same or different aryl groups, and 50-1% by weight of a triazine derivative type antioxidant represented by the formula, ##STR2## wherein X.sub.1, X.sub.2, and X.sub.3, which may be the same or different, are selected from the group consisting of --NH--, --O--, and --S--, and R', R", and R"', which may be the same or different, represent alkyl, or alkyl-substituted or unsubstituted hydroxyphenyl groups. This binary system antioxidant exhibits a synergistic effect on the stabilization of polyisoprene against heat and oxygen.

Abstract: Synthetic resins, particularly polyolefins, are markedly improved in their resistances to heat and oxidation by the incorporation of a 2-methyl-4-t-butyl-5-hydroxyphenylalkanoic acid ester alone or in combination with a thioether-type antioxidant represented by the general formula ##STR1## wherein R represents an alkyl group of 12 to 20 carbon atoms, or by the general formula ##STR2## wherein R represents an alkyl group of 4 to 20 carbon atoms.

Abstract: A colored polyester composition comprising an aromatic polyester and as a coloring agent, a barbituric acid-type pigment of the formula ##STR1## wherein ##STR2## represents an o-phenylene group or a 1,2- or 2,3-naphthylene group, each of which may have a phenyl group as a substituent.

Abstract: 2,2,6,6-Tetrasubstituted-4-piperidyl carboxy heterocyclic compounds are provided which are useful as stabilizers for organic polymeric materials.