Abstract: The present invention aims to provide a viscosity-index improving agent having an excellent friction reduction effect to reduce friction of a lubricating oil composition when the viscosity-index improving agent is added thereto. The present also aims to provide a lubricating oil composition containing the viscosity-index improving agent. The present invention relates to, for example, a viscosity-index improving agent containing: (co)polymer (A) containing, as an essential constituent monomer, a polyolefin-based monomer (a) represented by the following formula (1); an ester oil (B1) having a kinematic viscosity at 100° C. of 1.00 to 2.50 mm2/s; and an ester oil (B2) having a kinematic viscosity at 100° C. of 2.51 to 5.

Abstract: A composition having a polymer having a polymer matrix, a first stabilizer molecule within the polymer matrix, and a second stabilizer molecule within the polymer matrix, the first stabilizer molecule having the structure: wherein each R1-R4 is independently selected from the group consisting of C1-22 alkyl, C6-40 cycloalkyl, C2-20 alkyl glycol ether, and Y—OH; each Y is independently selected from the group consisting of C2-40 alkylene, C2-40 alkylene lactone, and C6-40 cycloalkylene; m is an integer ranging from 1 to 100; and x is an integer ranging from 1 to 1,000; the second stabilizer molecule is a monophosphite having an aryl moiety; wherein the claimed composition does not include a hindered phenolic antioxidant, lactone stabilizer, or hydroxylamine stabilizer.

Abstract: Provided is a thermoplastic resin composition excellent in heat resistance, transparency, appearance after shaping, and weather resistance, and in which coloring is suppressed during shaping processing. The thermoplastic resin composition of the present invention includes a copolymer (P1), and an antioxidant (O) represented by General Formula (1), in which the thermoplastic resin composition contains 80% by mass or more of the copolymer (P1) with respect to a total mass of the thermoplastic resin composition, and the copolymer (P1) includes 80 mol % or more of a repeating unit (A) derived from methyl (meth)acrylate (a), 2 mol % or more and 7 mol % or less of a repeating unit (B) derived from (meth)acrylic acid (b), and 0.001 mol % or more and 0.15 mol % or less of a repeating unit (C) having a glutaric anhydride structure.

Abstract: The present invention provides a particulate nucleating agent and a method for manufacturing the same. The particulate nucleating agent has an average radial crushing strength of 0.2-25.0N/cm. A weight content of the active ingredients in the particulate nucleating agent is no less than 90 wt %. The particulate nucleating agent is a transparent particulate nucleating agent. The particulate nucleating agent of the present invention can be fed smoothly during production without the change of the chemical composition thereof, so as to realize uniform dispersion in the polymer and reduce defects such as white dots in the polymer. The present invention breaks the traditional view of refining particles of nucleating agent to obtain a polymer having desirable properties, and avoids adding large amount of materials except the active ingredients during the granulation process of the nucleating agent.

Abstract: The present invention relates to a phosphorous acid compound represented by formula (I): wherein R1 represents a C1-8 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkyl cycloalkyl group, a C7-12 aralkyl group or a C6-12 aryl group; R2 represents a hydrogen atom or a C1-3 alkyl group; and R3 represents a C3-25 alkylene group, a stabilizer for organic materials containing the phosphorous acid compound, a method for stabilizing an organic material in which the phosphorous acid compound is added to the organic material, and a stabilized organic material composition containing an organic material and the phosphorous acid ester compound.

Abstract: Golf balls having at least one layer comprising a polymer composition comprising a reaction mixture of a base polymer and at least one regenerating-type multi-functional antioxidant. A regenerating-type multi-functional antioxidant has at least two differing moieties selected for example from the group consisting of phenols, phosphites, amines or combinations thereof, and is macromolecular, having a molecular weight of at least 2,000 g/mol. and up to 2,000,000. The at least one layer may comprise at least one regenerating-type multi-functional antioxidant in an amount of from 0.10 to about 2.5 parts by weight per 100 parts by weight of the base polymer, or of less than 0.50 parts by weight per 100 parts by weight of the base polymer, or of less than 0.095 parts by weight per 100 parts by weight of the base polymer. The base polymer can comprise ionomer resin composition(s), polyurethane composition(s) and/or rubber composition(s).

Abstract: Polyethylene is often stabilized with the combination of a primary antioxidant (such as a hindered phenol, a hydroxylamine or a lactone) and a secondary antioxidant (such as a phosphonite, a monophosphite, or a diphosphite). The diphosphite additives are not completely compatible with “linear” polyethylene. This results in “blooming” of the diphosphite to the surface of the finished polyethylene part or polyethylene film. The use of a preblend of ethylene vinyl alcohol (EVOH) and diphosphite mitigates this problem.

Abstract: The present invention relates to two processes for providing stable liquid blends of a) pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, b) octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate and c) tris-(2,4-di-tert-butylphenyl)phosphite. The first process comprises preparing a solid mixture comprising about 2 parts to about 3 parts by weight a), about 2 parts to about 3 parts by weight b) and about 2 parts to about 12 parts by weight c), heating the mixture to 185° C. or higher for a sufficient time to obtain a clear liquid blend of a), b) and c), cooling the liquid blend to a temperature of from 90° C. to 140° C. and maintaining the liquid blend at a temperature of from 90° C. to 140° C. The second process comprises preparing a solid mixture comprising about 2 parts to about 3 parts by weight a) and about 2 parts to about 3 parts by weight b), heating the mixture to 90° C.

Abstract: The present invention relates to a composition, which comprises a) an organic material susceptible to oxidative, thermal or light-induced degradation, which is a polymer, an oligohydroxy compound, a wax, a fat or a mineral oil, with the proviso that the polymer is not a polypeptide, agar-agar or a component of agar-agar and the oligohydroxy compound is not glucose or a component of agar-agar; and b) a compound of formula (I) n is 1, 2, 3 or 4; when n is 1, R5 is H, C1-C30-alkyl, C3-C10-cycloalkyl, C6-C10-aryl, which is unsubstituted or substituted by C1-C8-alkyl, C1-C8-alkoxy, halogen or one phenyl, C7-C13-aralkyl, C2-C22-alkenyl, C3-C12-alkinyl, OH, C1-C30-alkyloxy, C3-C10-cycloalkyloxy, C6-C12-aryloxy, C7-C13-aralkyloxy, hydroxy-C1-C8-alkyl, carboxy-C1-C12-alkyl, C1-C12-alkoxycarbonyl-C1-C12-alkyl, C2-C30-alkyl, which is interrupted by one or more oxygen atoms, C2-C16-alkyl, which is interrupted by one sulfur atom, or NR?1R?2; when n is 2, R5 is C1-C12-alkane-diyl, C6-C14-arylene, C4-C8-cycloalkane-bis-(C1-

Abstract: Processes for alkylating hydroxyaryl compounds by reacting a hydroxyaryl with at least one olefin of a complex hydrocarbon stream. The complex hydrocarbon stream preferably comprises a fraction of a cracked hydrocarbon feed stream or the reaction products of a dehydrogenation of a paraffinic feedstock. The olefin of the complex hydrocarbon stream is preferably a branched olefin, e.g., isobutylene or isoamylene. The alkylated compositions are suitable for forming liquid phosphite compositions.

Abstract: A process of modifying propylene polymers via melt grafting of polyfunctional monomer (PFMs) involving pre-initiative step thereby facilitating perfect absorption of PFMs on polymer matrix and initiate their grafting prior to reactive extrusion without using free radical initiators so that branching can be introduced in propylene polymer matrix. The modified propylene polymers showed enhanced shear sensitivity, increase in molecular weight, broadening of molecular weight distribution and strain hardening.

Abstract: Solid phosphite compositions comprising tris(4-t-alkylphenyl)phosphites and selected hydroxyalkyl amines exhibit surprising performance compared with other phosphite stabilizers in the stabilization of polymers, such as polyolefins and the like, particularly in the prevention of color formation during high temperature processing or when exposed to certain gasses during storage, e.g., “gas fading”.

Abstract: Modified lignin having covalently attached phosphorous containing groups and methods for preparing such compounds are described herein. The modified lignin described herein provides a renewable source of flame retardant material.

Abstract: The present invention relates to two processes for providing stable liquid blends of a) pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, b) octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate and c) tris-(2,4-di-tert-butylphenyl)phosphite. The first process comprises preparing a solid mixture comprising about 2 parts to about 3 parts by weight a), about 2 parts to about 3 parts by weight b) and about 2 parts to about 12 parts by weight c), heating the mixture to 185° C. or higher for a sufficient time to obtain a clear liquid blend of a), b) and c), cooling the liquid blend to a temperature of from 90° C. to 140° C. and maintaining the liquid blend at a temperature of from 90° C. to 140° C. The second process comprises preparing a solid mixture comprising about 2 parts to about 3 parts by weight a) and about 2 parts to about 3 parts by weight b), heating the mixture to 90° C.

Abstract: Modified lignin having covalently attached phosphorous containing groups and methods for preparing such compounds are described herein. The modified lignin described herein provides a renewable source of flame retardant material.

Abstract: Processes for alkylating hydroxyaryl compounds by reacting a hydroxyaryl with at least one olefin of a complex hydrocarbon stream. The complex hydrocarbon stream preferably comprises a fraction of a cracked hydrocarbon feed stream or the reaction products of a dehydrogenation of a paraffinic feedstock. The olefin of the complex hydrocarbon stream is preferably a branched olefin, e.g., isobutylene or isoamylene. The alkylated compositions are suitable for forming liquid phosphite compositions.

Abstract: Solid phosphite compositions comprising tris(4-t-alkylphenyl)phosphites and selected hydroxyalkyl amines exhibit surprising performance compared with other phosphite stabilizers in the stabilization of polymers, such as polyolefins and the like, particularly in the prevention of color formation during high temperature processing or when exposed to certain gasses during storage, e.g., “gas fading”.

Abstract: The present invention relates to a stabilizer combination for stabilizing IR absorbers, comprising a) at least one stabilizer based on phosphine, b) at least one stabilizer based on phosphite, and c) at least one phenolic antioxidant stabilizer.

Abstract: A polyester composition containing: a) aluminum atoms; and b) alkaline earth atoms or alkali metal atoms or alkali compound residues such as lithium atoms; and c) particles comprising titanium, zirconium, vanadium, niobium, hafnium, tantalum, chromium, tungsten, molybdenum, iron, or nickel atoms or combinations thereof, where the particles improve the reheat rate of the polyester composition. The polyester polymer compositions may also contain phosphorus catalyst deactivators/stabilizers. The polyester compositions and the articles made from the compositions such as bottle preforms and stretch blow molded bottles have improved reheat rate while maintaining low haze, high L*, a b* below 3, and have low levels of acetaldehyde. In the process for making the polyester polymer, the polymer melt is polycondensed in the presence of a) and b), with the particles c) added in a melt phase process or added to the polymer in an injection molding machine or extruder.

Abstract: A process of modifying propylene polymers via melt grafting of polyfunctional monomer (PFMs) involving pre-initiative step thereby facilitating perfect absorption of PFMs on polymer matrix and initiate their grafting prior to reactive extrusion without using free radical initiators so that branching can be introduced in propylene polymer matrix. The modified propylene polymers showed enhanced shear sensitivity, increase in molecular weight, broadening of molecular weight distribution and strain hardening.

Abstract: Mixtures of additives in granular form comprising: one or more stabilizers for organic polymers; one or more organic or inorganic pigments; and/or one or more dyes; obtained by extrusion at a temperature capable of enabling the partial or total melting of the lowest-melting component. The above mixtures can be used in the stabilization and dyeing of organic polymers.

Abstract: A composition comprising at least two different alkylaryl phosphites, wherein some alkyl groups have a different number of carbon atoms than other alkyl groups and wherein the composition is a liquid at ambient conditions.

Abstract: A composition and method for increasing the hydrolytic stability of a stabilizer composition comprising a first phosphite, a second phosphite, an optional phosphonite and an acid scavenger.

Abstract: The present invention relates to a stabilizer combination for stabilizing IR absorbers, comprising a) at least one stabilizer based on phosphine, b) at least one stabilizer based on phosphite, and c) at least one phenolic antioxidant stabilizer.

Abstract: A method is described for preparing liquid concentrates of additives for incorporation in polymers, particularly polymers prepared in solution or slurry phase polymerization media. Additive concentrates according to the invention are characterized by a finer dispersion than would result from the direct addition of particulate or granular additives to the same liquid solvent.

Abstract: A highly stabilized hydrogen peroxide useful for chemical sterilization of packaging materials in high-speed aseptic packaging plants.

Abstract: Polymer blends are disclosed that comprise one or more polybutadiene homopolymers or copolymers having at least one functionality capable of entering into condensation reactions; one or more polyethylene terephthalate homopolymers or copolymers obtained using a catalyst system comprising aluminum atoms and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues, optionally obtained by a melt-phase polymerization process; and one or more transition metal atoms. The blends are useful for packaging, and exhibit improved oxygen-scavenging activity compared with blends made using many conventional polyethylene terephthalate polymers prepared with conventional catalyst systems.

Abstract: The present invention relates to high purity monoalkyltin compounds, more specifically to alkyltin compound compositions containing monoalkyltin as major compound, and minor quantities of di- and/or trialkyltin compounds. The present invention also relates to the preparation processes of such high purity monoalkyltin compounds, as well as to the uses of said monoalkyltin compounds as chlorine-containing polymer-stabilisers, glass coating chemicals and catalysts, as well as articles comprising at least one polymer matrix and a high purity monoalkyltin compound.

Abstract: Disclosed is an oil composition wherein the oil contains measurable amounts of peroxide resulting from peroxidation, and also includes an effective amount of a peroxide-reducing phosphorous compound, preferably an alkyl/aryl substituted phosphite compound or phosphinic acid (H3PO2) and its derivatives.

Abstract: An antioxidant composition containing an antioxidant represented by the following formula (I) and a metal salt of fatty acid of a carbon number of 4 to 18, wherein a weight ratio of the antioxidant (I) and the metal salt of fatty acid is in a range of (100:0.1) to (100:200).

Abstract: The invention is directed to various alkylaryl phosphite compositions that ideally are suitable for use as secondary antioxidants in polymers. In one aspect, the phosphite composition comprises a tris(dialkylaryl)phosphite in an amount from 20 to 93 weight percent; and at least one of: a bis(dialkylaryl)monoalkylaryl phosphite; a bis(monoalkylaryl)dialkylaryl phosphite; and a tris(monoalkylaryl)phosphite. The inventive phosphite composition is a solid at ambient conditions. The invention also relates to alkylate compositions and processes for forming such alkylate compositions and such phosphite compositions.

Abstract: Hydrolytically stable phosphites as secondary antioxidants for polymer resins comprising a phosphite and an amine compound. The phosphite may be a liquid phosphite composition. The amine compound may have the structure of formula I: wherein x is 1, 2 or 3; R1 is selected from the group consisting of hydrogen, and straight or branched C1-C6 alkyl, and R2 is selected from the group consisting of straight or branched C1-C30 alkyl.

Abstract: Stabilizer compositions comprise phosphate of the formula I or II, a phosphite of the formula III, and a phenol of the formula IV as these formulas are defined herein. The stabilizer compositions are useful for stabilizing polymers. Methods for making stabilized polymer compositions involve intermixing the stabilizer compositions and the polymers, e.g., by extruding, pelletizing, and/or molding.

Abstract: There is provided a phosphite composition comprising 100 parts by weight of a phosphite represented by the formula (1) and 0.5 to 8 parts by weight of an aliphatic hydrocarbon lubricant having a softening point or a melting point of not higher than 115° C., wherein the content of the phosphite (1) in said composition is 30 to 99.5% by weight.

Abstract: A composition comprising at least two different alkylaryl phosphites, wherein some alkyl groups have a different number of carbon atoms than other alkyl groups and wherein the composition is a liquid at ambient conditions.

Abstract: A method for inhibiting the discoloration of methylenebisaniline compounds by adding a phosphine of the formula: (H)p—P—(R3)q (wherein R3 is an optionally substituted aryl group or an optionally substituted alkyl group; p is 0, 1 or 2 and q is 1, 2 or 3) to a compound of the formula: (wherein R1 and R2 are each independently a halogen atom or a C1-C6 alkyl group; a and b are each independently an integer of 0 to 4; m and n are each independently an integer of 1 to 5).

Abstract: Stabilizer compositions comprise phosphate of the formula (I) or (II), a phosphite of the formula (III), and a phenol of the formula (IV) as these formulas are defined herein. The stabilizer compositions are useful for stabilizing polymers. Methods for making stabilized polymer compositions involve intermixing the stabilizer compositions and the polymers, e.g., by extruding, pelletizing, and/or molding.

Abstract: An object of the present invention is to provide a low-dusting additive composition which can improve thermal coloration resistance of a thermoplastic resin. A granular additive composition comprising 5 to 70% by weight of fatty calcium and 5 to 50% by weight of a sulfur-based compound represented by the formula (1), wherein an infrared absorption spectrum of the composition has a maximum absorption peak A in which absorbance in 1540 cm?1 to 1543 cm?1 is a maximum value, and a maximum absorption peak B in which absorbance in 1575 cm?1 to 1583 cm?1 is a maximum value, and the absorbances of the peak A and the peak B are a maximum value and a next maximum value in 1540 cm?1 to 1583 cm?1. (R1—Y—S—C2H4CO2)m-Z??(1) [In the formula (1), R1 represents an alkyl group, Y represents a single bond, or a —C2H4CO2— group, m represents an integer of 1 to 4, and Z represents an alcohol residue].

Abstract: The present invention relates to an antiskinning composition containing an organic oxygen scavenger and at least one drying accelerator.

Abstract: A compacted particulate polymer additive composition in a dry granular form formed from a substantially uniform mixture of the following components: (a) at least one particulate sterically-hindered phenolic compound; and (b) one or more particulate polymer additives other than a sterically-hindered phenolic compound; wherein the particles of said composition are held together in compacted dry granular form exclusively or substantially exclusively by contact with dried surfaces of in situ desolvated particles from particles of one or more at least partially solvated components of (a), and optionally by contact with dried surfaces of in situ desolvated particles from particles of one or more at least partially solvated components of (b). Compositions of this type except that there is no component (b) are also described.

Abstract: A carbodiimide composition having an improved heat resistance which meets conventional requirements for a carbodiimide compound to be compounded in an ester-group-containing resin or a biodegradable plastic, and exhibiting no coloring problems due to yellowing, and having a superior stabilizing effect agains hydrolysis. The carbodiimide composition comprises a carbodiimide compound (A) and an antioxidant (B), having a 5% weight loss temperature not lower than 250° C. as determined by a thermogravimetric (TG) method, wherein an antioxidant (B) is dispersed and present in the composition by admixing during synthesis of a carbodiimide compound (A), a stabilizer against hydrolysis mainly comprising the carbodiimide composition and a thermoplastic resin composition containing the same.

Abstract: The present invention relates to the color stabilization of hydroquinone hydroxyethyl ethers by phosphite compounds containing the bis-cyclic structure of spiro phosphites, both rings being attached to the same tertiary carbon atom in the phosphite molecule.

Abstract: The invention relates to liquid polymer additive compositions comprising blends of phosphite esters selected from the group consisting of aryl phosphites, alkyl phosphites, aryl/alkyl phosphites, bisphenol-A phosphites, dialkylene glycol phosphites and polydialkylene glycol phosphites, pentaerythritol phosphites, p-cumyl phenol phosphites with from 50 to 800 ppm inclusive of zinc per 100 parts resin. The stabilizer is used as either a complete or a partial replacement of toxic-metal containing antioxidant stabilizer additives.

Abstract: A hardener composition for use as a component of a two component polyurethane coating composition, comprising a polyisocyanate, a catalyst for promoting reaction of the polyisocyanate with a reactive hydrogen compound, and one or more antioxidants selected from: a first antioxidant comprising one or more of sterically hindered phenol antioxidants and secondary aryl amine antioxidants, and a second antioxidant comprising one or more organophosphite antioxidant, exhibits improved color stability.

Abstract: The invention relates to a compound containing at least one health promoting isolated antioxidant A having a redox potential of less than 180 mV and at least one stabilising antioxidant B which has a standard redox potential which is less than the standard redox potential of the antioxidant A. The use of the inventive compound and method for the production thereof are also disclosed.

Abstract: A stabilizer composition is described and comprises a 2-cyano-3,3-diarylacrylate, a sterically hindered monomeric amine, a sterically hindered phenol and, where appropriate, a chromane derivative and/or an organic phosphite and/or phosphonite. The stabilizer composition is particularly suitable for stabilizing thermoplastic polyurethane with respect to light, oxygen, and heat.

Abstract: A stabilizer composition is described and comprises a 3-arylacrylate, a polymeric compound with molecular weight at least 2000, bearing, on a polymeric framework, side groups having amine functions, where all of the substituents in the ?-position to the amine nitrogen atom are other than hydrogen, and comprises a sterically hindered phenol. The stabilizer composition is particularly suitable for stabilizing thermoplastic polyurethane with respect to light, oxygen, and heat.

Abstract: A solid phosphite composite, having at least a portion in amorphous form, which includes at least one, preferably two or more phosphite antioxidants or alternatively at least one phosphite and at least one other polymer additive. The phosphites, at least one of which can initially be a liquid, are generally uniformly distributed since they are melt blended. A desired class of phosphites are the bis(arylalkylphenyl)pentaerythritol diphosphites, at least a portion of which is in amorphous form.

Abstract: The instant invention relates to stabilizer compositions for thermoplastic polymers comprising a) at least one organophosphine, b) at least one 2-phenylbenzofuranone, and c) at least one sterically hindered piperidine based stabilizer (HAS), wherein the weight ratio of component a) to component b) to component c) is from 1:0.05:0.5 to 1:3:5. The instant compositions need an overall lower concentration as compared with the conventional phenol-containing formulations. In polyolefin articles, particularly in polyolefin-fibers, discoloration during processing and service life by both the formation of quinoid products and by action of NOx gases (gasfading) is avoided.

Abstract: The invention relates to a synergistic mixture comprising a) at least one compound from the group which consists of the phosphanes of the formula (I), (di/oligo)phosphanes of the formulae (II) and (III) and cyclophosphanes of the formula (IV) and b) at least one 6-hydroxychromane derivative of the general formula (V) and also to a process which stabilizes polymers with respect to thermooxidative degradation by addition and incorporation of this synergistic mixture.