Abstract: A stabilizing system for stabilizing polymeric materials against ultraviolet light and thermooxidative deterioration is provided in which the stabilizing system is in pellet form. The pellet is formed from a substantially dry homogeneous mixture of at least one stabilizer and an agent which will prevent melting of the stabilizer. The stabilizer compound makes up about 50% to about 98% by weight of the mixture. The stabilizers are antioxidants (such as phosphites and hindered phenols) or hindered amine UV light stabilizers, or combinations thereof. The melt preventing agent may be a compound derived from a fatty acid or a fatty alcohol, or a fatty acid or a fatty alcohol, or a combination of fatty acids or fatty alcohols which makes up about 3%-10% of the homogeneous mixture. The fatty acids, fatty alcohols, and the compounds derived therefrom preferably have a low melting point in the range of 50.degree.-100.degree. C. and preferably between 50.degree. C. and about 80.degree. C.

Abstract: Novel 2-cyanoacrylic esters I ##STR1## where the radicals have the following meanings: R.sup.1 and R.sup.2 are each hydrogen or a radical having an iso- or heterocyclic ring system with at least one iso- or heteroaromatic nucleus, and at least one of the radicals R.sup.1 or R.sup.2 must be different from hydrogen,n is from 2 to 10, andX is, when n=2, a radical of the formula II ##STR2## where m is from 2 to 8, and X is, when n>2, the radical of an n-hydric aliphatic or cycloaliphatic polyol having 3-20 carbon atoms, it also being possible for a cycloaliphatic radical to contain 1 or 2 hetero atoms, and for an aliphatic radical to be interrupted by up to 8 non-adjacent oxygen atoms, sulfur atoms, imino or C.sub.1 -C.sub.4 -alkylimino groups, are used as light stabilizers.

Abstract: A stabilizer combination, principally for PVC, is described, comprising A at least one zinc carboxylate B at least one compound of the formula ##STR1## in which R.sub.1 to R.sub.6 are as defined in claim 1.

Abstract: Control of formation of heat stable amine salts and of corrosion in an amine solvent treating system is accomplished by introduction of N,N-diethylhydroxylamine catalyzed with hydroquinone into the system. The catalyzed N,N-diethylhydroxylamine is effective at the temperature ranges of amine treating systems to effectively reduce formation of heat stable amine salts and to inhibit corrosion. The catalyzed N,N-diethylhydroxylamine is effective in proportions including the range of about 0.5 to about 6 parts N,N-diethylhydroxylamine to 1 part hydroquinone.

Abstract: A method for detecting naphthylamines which are present as tracers in mineral oils, wherein the naphthylamine is extracted by treating the mineral oil with an aqueous medium, and is coupled in the aqueous phase with a diazonium salt to form an azo dye, the use of specific naphthylamines as tracers in mineral oils and mineral oils containing these specific naphthylamines.

Abstract: o-Hydroxyphenyl-s-triazines of the formula I ##STR1## in which n is 1 to 4 and R.sub.1 to R.sub.7 are as defined in claim 1, can be used, in combination with sterically hindered amines of the polyalkylpiperidine type, for stabilizing organic polymers. Some of these compounds are novel and can also be used without polyalkylpiperidine.

Abstract: There is provided a bleaching composition, suitable for use in a machine dishwashing method, containing: an oxygen-releasing bleaching agent, from 0.05% to 2.5% by weight, preferably 0.1% to 0.6% by weight of a paraffin oil, from 0.005% to 3%, preferably 0.02% to 1% and most preferably from 0.05% to 0.5% of a benzotriazole compound. Preferably the bleaching composition forms a part of a detergent composition.

Abstract: .alpha.- and/or .beta.-tocopherol (vitamin E), optionally in combination with octylated diphenylamines, is combined with a polyether polyol having a molecular weight of from about 300 to about 10,000 to stabilize that polyether polyol. Polyether polyols which are stabilized in this manner are particularly useful in the production of polyurethanes and polyurethane foams with a reduced tendency toward discoloration.

Abstract: A process for the production of a polyamide stabilizer concentrate in which the concentrate consists of at least two interactive stabilizer components with defined particle sizes and, optionally, micro-dispersed silicic acid, as well as a wax bonding agent with a solidification temperature t.sub.A between 65.degree. and 120.degree. C., in which a homogeneous mixture of these ingredients is compacted into tablets when subjected to a compression force p that is sufficient to heat the mixture to a temperature of at least 40.degree. C. and equal to t.sub.A minus 10.degree. to 50.degree. C.

Abstract: The present invention relates to a method of subgrouping media formulations into stable, compatible components that can then be solubilized at high concentrations (10.times. to 100.times.). Concentrated solutions of the ingredient containing subgroups can be used to prepare media formulations. Concentrated culture media formulations (2-10.times.) or 1.times. cell culture media can be prepared according to the present invention by mixing a sufficient amount of the concentrated subgroup solutions with a sufficient amount of a diluent (water, buffer, etc.).The present invention further relates to stabilization of glutamine by complexing or mixing glutamine with divalent metal cations in solution.

Abstract: The present invention relates to a compound of the formula ##STR1## wherein n is an integer from 1 to 4, R is selected from the group consisting of hydrogen and methyl; wherein when n is 1, R.sup.1 is selected from the group consisting of alkyl radicals having 1 to 18 carbon atoms, aryl radicals having 6 to 12 carbon atoms, aralkyl radicals having 7 to 12 carbon atoms, cycloalkyl radicals having 5 to 12 carbon atoms and radicals of the formula: ##STR2## wherein x is an integer of from 1 to 7; wherein when n is 2, R.sup.1 is selected from the group consisting of alkylene radicals having 2 to 18 carbon atoms, cycloalkylene radicals having 5 to 12 carbon atoms, arylene radicals having 6 to 12 carbon atoms, ##STR3## polyalkyl glycol ether radicals having the following structure ##STR4## wherein x is an integer from 1 to 7.

Abstract: A mixture comprising a compound of the formula I and a compound of the formula II ##STR1## in which n is 1 or 2; R.sub.1, R'.sub.1, R.sub.2, R'.sub.2, R.sub.3 and R.sub.4, independently of one another, are H, C.sub.1 -C.sub.12 alkyl; C.sub.2 -C.sub.6 alkenyl; C.sub.1 -C.sub.12 alkoxy; C.sub.2 -C.sub.18 alkenoxy; halogen; trifluoromethyl; C.sub.7 -C.sub.11 phenylalkyl; phenyl; phenyl which is substituted by C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.18 alkoxy or halogen; phenoxy; or phenoxy which is substituted by C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.18 alkoxy or halogen;R.sub.6 is hydrogen, C.sub.1 -C.sub.24 alkyl, C.sub.5 -C.sub.12 cycloalkyl or C.sub.7 -C.sub.15 phenylalkyl;R.sub.7, in the case where n=1, and R'.sub.7, independently of one another, are hydrogen or C.sub.1 -C.sub.18 alkyl; or are C.sub.1 -C.sub.12 alkyl which is substituted by OH, C.sub.1 -C.sub.18 alkoxy, allyloxy, halogen, --COOH, --COOR.sub.8, --CONH.sub.2, --CONHR.sub.9, --CON(R.sub.9)(R.sub.10), --NH.sub.2, --NHR.sub.9, --N(R.sub.9)(R.

Abstract: 4,4'-disubstituted bis(2,6-diisopropylphenyl)carbodiimides of the formula (I) ##STR1## where R is 1-methyl-1-phenylethyl, phenoxy or tert-butyl, a process for their preparation, their use as stabilizers against hydrolytic degradation of polyaddition and polycondensation products containing ester groups, and the novel 4-(1-methyl-1-phenylethyl)-2,6-diisopropyl-, 4-phenoxy-2,6-diisopropyl- and 4-tert-butyl-2,6-diisopropylphenyl isocyanates which can be used for their preparation.

Abstract: 4,4'-disubstituted bis-(2,6-diisopropylphenyl)carbodiimides of the formula (I) ##STR1## where R is 1-methyl-1-phenylethyl, phenoxy or tert-butyl, a process for their preparation, their use as stabilizers against hydrolytic degradation of polyaddition and polycondensation products containing ester groups, and the novel 4-(1-methyl-1-phenylethyl)-2,6-diisopropyl-, 4-phenoxy-2,6-diisopropyl- and 4-tert-butyl-2,6-diisopropylphenyl isocyanates which can be used for their preparation.

Abstract: A method of producing an antioxidant containing derivatives of an organic compound, and in particular, an antioxidant glyceride derivative, comprises reacting a first compound with a second medium. By this reaction, a product is formed whereby an active component of the first compound, e.g., an antioxidant moiety, is covalently incorporated into the second medium.The second medium comprises glyceride derivatives, silicones, fluorocarbons and alkoxylates containing reactive groups such as hydroxy, amino, carboxyl, ester, or amides.

Abstract: Liquid UV stabilizers which are stable at room temperatures or below made from di-substituted and tri-substituted benzophenone compositions. A process to render di-substituted and tri-substituted benzophenone admixtures stable liquids at room temperatures or below involving heating the admixture to a temperature in the range of 80.degree.-175.degree. C. for a period of time sufficient that when the admixture is cooled to room temperature the admixture remains liquid.

Abstract: Low-dust granules of plastic additives, comprising at least 10% by weight of calcium stearate, where the water content of the calcium stearate is less than 2%, having a particle size distribution, in accordance with ISO 3435, of from 1 mm to 10 mm, a loose bulk density of greater than 400 g/l and a flowability in accordance with DIN 53492 of less than 15 s (tR25), a process for their production, and the use of these granules for the stabilization of organic polymers.

Abstract: A stabilizer composition useful as an additive for polyether polyols, particularly those employed in the manufacture of polyurethane foams, is provided which comprises a diphenylamine:isobutylene:diisobutylene reaction product, a sterically hindered phenol and a trihydrocarbyl phosphite.

Abstract: The use of magnesium oxide of specified, low, reactivity in a process for the production of overbased magnesium sulphonates, together with the introduction of water and an alcohol, into the reaction mixture during carbonation, makes it possible to prepare high base number products which have very low post carbonation sediments and which can be purified by rapid filtration.

Abstract: 4,4'-disubstituted bis-2,6-diisopropylphenyl)carbodiimides of the formula (I) ##STR1## where R is 1-methyl-1-phenylethyl, phenoxy or tert-butyl, a process for their preparation, their use as stabilizers against hydrolytic degradation of polyaddition and polycondensation products containing ester groups, and the novel 4-(1-methyl-1-phenylethyl)-2,6-diisopropyl-, 4-phenoxy-2,6-diisopropyl- and 4-tert-butyl-2,6-diisopropylphenyl isocyanates which can be used for their preparation.

Abstract: An N-acylamino acid compound represented by the general formula (1):R--CO--(NH--X--CO).sub.n --OR.sup.1 (1)wherein (NH--X--CO) is an amino acid residue, X in (NX--X--CO) is variable with the kind of amino acid to be used, R--CO is a saturated or an unsaturated fatty acid residue having 6 to 24 carbon atoms, R.sup.1 is hydrogen atom, sodium atom, potassium atom, or methyl group and n is an integer in the range of from 1 to 3, indicating that at least one histidine is contained as a component amino acid is disclosed, which is obtained by causing an N-hydroxysuccinimide ester to react with an amino acid or a peptide.The compound excels in antioxidizing power, emulsifying power, antibacterial power, chelating power, infrared absorbing power, and humidity-retaining power.

Abstract: A stabilizer system for the suppression of yellowing in styrenic polymers, consisting essentially of a benzotriazole such as 2-(2'-hydroxy-3',5'-di-tert-amylphenyl)benzotriazole, a hydroxybenzocyanurate such as tris-(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate and a condensation product of a N,N'-(2,2,6,6-tetramethylpiperidyl)-alkylenediamine and a 6-amino-2,4-dichloro-1,3,5-s-triazine such as the condensation product of N,N'-(2,2,6,6-tetramethylpiperidyl)hexamethylenediamine and 6-morpholino-2,4-dichloro-1,3,5-s-triazine. Additionally a dialkyl thiodipropionate and a zinc dialkyldithiocarbamate may be included in the stabilizer system.

Abstract: A process for reducing the content of free formaldehyde and formic acid in nonionic and anionic surfactants is provided. The process comprises adding an amine compound selected from the group consisting of a) alkanolamines, b) aminocarboxylic acids and c) oligopeptides to a surfactant comprised of a member selected from the group consisting of nonionic and anionic surfactants. The amine compound is preferably selected from the group consisting of a) an alkanolamine containing 2 to 15 carbon atoms, b) an aminocarboxylic acid containing 2 to 8 carbon atoms, and c) an oligopeptide with an average molecular weight of 500 to 5000. The nonionic and anionic surfactants preferably contain 1 to 100 ethylene oxide units in the form of at least one polyethylene glycol chain. The amine compound is preferably added in a quantity of 50 to 6000 ppm, based on active substance of said surfactant.

Abstract: The present invention relates to a method of subgrouping media formulations into stable, compatible components that can then be solubilized at high concentrations (10.times. to 100.times.). Concentrated solutions of the ingredient containing subgroups can be used to prepare media formulations. Concentrated culture media formulations (2-10.times.) or 1.times. cell culture media can be prepared according to the present invention by mixing a sufficient amount of the concentrated subgroup solutions with a sufficient amount of a diluent (water, buffer, etc.). The present invention further relates to stabilization of glutamine by complexing or mixing glutamine with divalent metal cations in solution.

Abstract: In the analysis of hemoglobins in blood samples by chromatography, an increase in the pressure in a flow passage line is suppressed, a separation column is made durable against prolonged use by supplying phosphate-based buffer solutions as eluting solutions to a separation column and a solution containing not more than 100 mM of S-(carboxyalkyl)-L-cysteine and phosphate-based buffer agent thereto in the course of a series of analyzing steps.

Abstract: Corrosion cracking and blistering of steels in contact with refinery streams containing cyanide is inhibited or prevented by treating said stream with a reaction product or products obtained by reacting morpholine and formaldehyde. The preferred corrosion cracking and blistering inhibiting treatment product is bis--morpholinyl-- methane.

Abstract: Novel substituted heterocyclic formamidines are useful as ultraviolet light absorbers, the formamidines having the formula ##STR1## wherein: Ar represents a 2-thiazolyl, 2-pyridyl, 2- 4,6-dimethyl) pyrmidyl or a 4-(2-methyl)quinolyl group, and,R represents a phenyl group or an alkyl group of from one to eight carbon atoms.

Abstract: Compositions for making a bonded magnet product by conventional moulding techniques comprising high amounts of magnetic particles together with a polyamide resin and from about 0.2 to 3% by weight of a hindered phenol hydrazine compound are described.

Abstract: Corrosion, cracking and blistering of steels in contact with water containing refinery streams contaminated with cyanide is inhibited or prevented by treating the streams with a cyanide reactive scavenger comprising at least one amine-aldehyde reaction product.

Abstract: A method of producing an antioxidant containing compound, and in particular, an antioxidant glyceride derivative, comprises reacting a first compound with a second medium. By this reaction, a product is formed whereby an active component of the first compound, e.g., the antioxidant, is covalently incorporated into the second medium.The second medium comprises glyceride derivatives, silicones, fluorocarbons and alkoxylates containing reactive groups such as hydroxy, amino, carboxyl, ester, or amides.

Abstract: Compositions for making a bonded magnet product by conventional moulding techniques comprise high amounts of magnetic particles together with a polyamide resin and from about 0.2 to 3% by weight of a hindered phenol compound.

Abstract: The invention provides a cleaning solution and a method of using the cleaning solution for cleaning diagnostic analyzers. The solution contains a rapidly wetting surfactant and an inorganic or organic acid. The invention provides rapid and effective cleaning of proteins from all types of materials used for components of automatic analyzers.

Abstract: A stabilizer composition useful as an additive for polyether polyols, particularly those employed in the manufacture of polyurethane foams, is provided which comprises a diarylamine, a sterically hindered phenol and a pentaerythritol diphosphite.

Abstract: Compositions of (a) a salt of a metal and a carboxylic acid having at least 6 carbon atoms and (b) at least one salt of a metal other than the metal of (a) and a carboxylic acid having at least 6 carbon atoms in a fluid medium are stabilized towards storage decomposition and precipitation by incorporating in the composition (c) a complexing agent such as a ketoxime.

Abstract: A lubricating oil viscosity index improvement additive with dispersant and ntioxidant properties of general formula: ##STR1## where R' is hydrogen or an alkyl, R.sub.a and R.sub.b are alkyl radicals, R.sub.c is a nitrogenated alkyl radical and x, y and z represent relative quantities. The invention also relates to the process for preparing said additive and lubricating oil compositions which contain it.

Abstract: The present invention relates to novel tetramethylpiperidine compounds of the formula (I) ##STR1## in which R.sub.1 is e.g. hydrogen or methyl, R.sub.2 and R.sub.3 are e.g. --(CH.sub.2).sub.2 --, R.sub.4 is e.g. --CO--, --COCO-- or --COCH.sub.2 CO--, n is e.g. 1 and R.sub.5 is e.g. hydrogen or allyl.These compounds are suitable for use as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials.

Abstract: The present invention is concerned with a combination for the preservation of diagnostic tests, characterized by a content of at least two components selected from the group comprising 2-methyl-4-isothiazolin-3-one hydrochloride, 2-hydroxypyridine-N-oxide, chloroacetamide, (N,N-methylene-bis-(N-(1-hydroxymethyl-2,5-dioxo-4-imidazolidinyl))-urea and 5-bromo-5-nitro-1,3-dioxan.The present invention is also concerned with a preserved diagnostic test kit, comprising test reagents and at least two preservation agents selected from the group comprising 2-methyl-4-isothiazolin-3-one hydrochloride, 2-hydroxypyridine-N-oxide, chloroacetamide, (N,N-methylene-bis-(N-(1-hydroxymethyl)-2,5-dioxo-4-imidazolidinyl))-urea and 5-bromo-5-nitro-1,3-dioxan.

Abstract: The invention relates to the high temperature stabilization of polyol heat transfer fluids by the use of N-phenyl-p-phenylenediamines.

Abstract: Tertiary amines corresponding to the formula Z.sub.2 Z'N in which Z is a 3,5-dihydrocarbyl-4-hydroxyphenalkyl group having the structure: ##STR1## wherein R is hydrogen or an alkyl group of 1-3 carbons; R' and R" are hydrocarbyl groups independently selected from alkyls and cycloalkyls of up to six carbons; n represents zero or one; and Z' is Z or an alkyl, alkenyl, or aralkyl group of up to 18 carbons are novel compounds having antioxidant activity in organic materials which are normally susceptible to oxidative deterioration. They are especially valuable as antioxidants for lubricants.

Abstract: A process for producing granules of a 2,2,6,6-tetramethylpiperidine-containing light stabilizer, which comprises mixing a 2,2,6,6-tetramethylpiperidine-containing light stabilizer having a melting point of not less than 60.degree. C. with a lubricant selected from the group consisting of water and an aqueous solution of an alcohol having 1 to 4 carbon atoms, and granulating the resultant mixture while pressure is applied thereto. The granular light stabilizer product has low dusting property and excellent free-flowing property.

Abstract: A method for the inhibition and removal Of ammonium chloride deposition in hydrocarbon processing units comprising adding to the hydrocarbon liquid an amide selected from the group consisting of dimethylformamide and 1,3-dimethyl-2-thiourea.

Abstract: A liquid stabilizer composition for polyether polyols used in the production of flexible and semiflexible polyurethane foams contains a mixture of 4-alpha,alpha-dimethylbenzyl diphenylamine and 4,4'-bis-(alpha,alpha-dimethylbenzyl) diphenylamine.

Abstract: Lubricants can be stabilized against oxidation by the addition ofa) a sterically hindered amine andb) a phenol of formula I ##STR1## wherein A, is hydrogen, alkyl, cycloalkyl, phenylalkyl, phenyl or alkylthiomethyl, B is alkyl, cycloalkyl, phenylalkyl, phenyl or alkylthiomethyl and X is hydrogen, alkyl or substituted alkyl. It is preferred to use phenols of formula I which contain a thioether group.

Abstract: The use of an aminovinyl-substituted heterocyclic compound of the general formula I ##STR1## in which R.sup.1 denotes hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, or halogen, and, if more than one radical R.sup.1 are present, these may be the same or different,R.sup.2 denotes cyano or C.sub.1 -C.sub.20 -alkoxycarbonyl or C.sub.3 -C.sub.6 -cycloalkoxycarbonyl,R.sup.3 denotes hydrogen, C.sub.1 -C.sub.18 -alkyl, C.sub.1 -C.sub.18 -alkoxy, halogen, cyano, C.sub.1 -C.sub.20 -alkoxycarbonyl, or C.sub.3 -C.sub.6 -cycloalkoxycarbonyl, and, if more than one radical R.sup.3 are present, these may be the same or different,X denotes NH, O or S,m is equal to 1 or 2, andn is an integer from 1 to 5,as a stabilizer for organic materials.

Abstract: An oxygen scavenger for a boiler water system comprising a starch derivative in which 0.01 to 5% by weight of sulfur- or nitrogen-containing groups, as S or N, are introduced to a starch with DE (dextrose equivalent) of 1% or higher, as well as a method of scavenging dissolved oxygen in a boiler water system by adding the oxygen scavenger for a boiler water system to a boiler water system.

Abstract: A stabilizer composition useful as an additive for polyether polyols, particularly those employed in the manufacture of polyurethane foams, is provided which comprises a diarylamine, a sterically hindered phenol and a pentaerythritol diphosphite.

Abstract: The invention relates to the use of certain styrenated diphenylamine and hindered phenol compositions for the stabilization of polyether polyols.

Abstract: An alkoxybenzotriazole, in combination with mercaptobenzothiazole, tolyltriazole, benzotriazole, a substituted benzotriazole and/or 1-phenyl-5-mercaptotetrazole, is used to inhibit the corrosion of metallic surfaces, particularly copper surfaces, in contact with an aqueous system. Systems and compositions are also claimed.

Abstract: The present invention relates to an antidegradant system comprised of (A) an antidegradant selected from the group consisting of phenolic antidegradants, amine antidegradants and mixtures thereof; and (B) a unique polymerizable synergist. In addition, there is disclosed a stabilized polymer comprising (A) a polymer selected from the group consisting of (1) homopolymers and copolymers of monoolefins; (2) natural rubber; and (3) synthetic rubber derived from a diene monomer; (B) from about 0.05 to about 10 parts by weight based upon 100 parts of polymer of an antidegradant selected from the group consisting of phenolic antidegradants, amine antidegradants and mixtures thereof; and (C) from about 0.05 to about 20 parts by weight based upon 100 parts of polymer of a unique polymerizable aromatic sulfide synergist.

Abstract: N-Allyl substituted p-phenylenediamine compounds are very effective antioxidant stabilizers for organic material subject to oxidative or thermal degradation, particularly for lubricant compositions.