Abstract: Disclosed herein is a flame retardant polyester resin composition that can have excellent heat resistance comprising (A) about 100 parts by weight of a polyester resin; (B) about 1 to about 50 parts by weight of a metal salt of an organic phosphinic acid; (C) about 0.01 to about 20 parts by weight of an ionomer resin; and (D) about 1 to about 100 parts by weight of a filler. The resin composition of the present invention composition can have excellent heat resistance while maintaining mechanical properties, and also does not produce toxic halide gases.

Abstract: There are provided a thermoplastic resin composition excellent in a balance between fluidity and low outgassing, and a molded product and a sheet including the thermoplastic resin composition. The thermoplastic resin composition may include from 70 to 99% by mass of (A) a polyphenylene ether, from 1 to 30% by mass of (B) a copolymer including an aromatic vinyl compound and an unsaturated dicarboximide derivative as constituent monomers, and from 0 to 20% by mass of (C) a copolymer including an aromatic vinyl compound and a cyanided vinyl compound as constituent monomers, based on 100% by mass of the total of the (A) component, the (B) component and the (C) component, wherein the (B) component has a weight-average molecular weight of from 70,000 to 250,000.

Abstract: A laser-weldable flame-retardant resin composition (for a member located in a transmitting side) comprises (A) a polyester-series resin and (B) at least one phosphinic acid compound selected from the group consisting of a salt of a phosphinic acid, a salt of a diphosphinic acid, and a polymer thereof (preferably, a metal salt). The resin composition may have a laser light transmittance of not less than 15% for a molded product comprising the resin composition and having a thickness of 2 mm. The resin composition may further contain a fluorine-containing resin, a nitrogen-containing flame retardant (e.g., a salt of a triazine compound with cyanuric acid and/or isocyanuric acid), and/or a filler (e.g., a glass fiber), and others. Such a resin composition realizes both of laser-weldability (laser transmissivity) and flame retardancy at high levels.

Abstract: A flame-retardant glass fiber-reinforced polyamide resin composition, containing: 100 parts by mass of a flame-retardant resin composition consisting of (A) 60 to 90 percent by mass of a polyamide resin, and (B) 40 to 10 percent by mass of a flame retardant containing no halogen atom, (A)+(B) being 100 percent by mass; and 60 to 210 parts by mass of a flattened glass fiber (C) having a flat section of 1.5-10 in a ratio of major axis/minor axis, wherein the polyamide resin (A) contains a crystalline polyamide resin (a1) and an amorphous polyamide resin (a2), the flame retardant containing no halogen atom (B) contains a phosphinate (b1) and/or a diphosphinate (b2), and a blending ratio of the amorphous polyamide resin (a2) in the polyamide resin (A) is 0.1?(a2)/(A)?0.5.

Abstract: Flame retardant thermoplastic elastomer composition comprising a thermoplastic vulcanizate composition and non-halogenated flame retardant.

Abstract: A thermoplastic polymer blend is disclosed comprising a polyester, a polycarbonate, and a minor amount of a flow enhancer selected from non-sulfonated phosphonium salts. Optionally, impact modifiers and other conventional additives are included.

Abstract: A spectacle lens made of a polycarbonate resin composition which comprises (1) 100 parts by weight of a polycarbonate resin, (2) 0.05 to 0.5 part by weight of (A) at least one ultraviolet light absorber selected from the group consisting of 2-(2?-hydroxy-5?-methylphenyl)benzotriazole and 2-(2?-hydroxy-5?-tert-octylphenyl)benzotriazole, (3) 0.01 to 0.3 part by weight of (B) at least one ultraviolet light absorber selected from the group consisting of 2-(3-tert-butyl-5-methyl-2-hydroxyphenyl)-5-chlorobenzotriazole, 2,2?-methylenebis[4-(1,1,3,3-tetramethylbutyl)-6-(2H-benzotraizole)-2-ylphenol] and 2-[2-hydroxy-3,5-bis(?,?-dimethylbenzyl)phenyl]-2H-benzotriazole, and (4) 0.01 to 0.5 part by weight of (C) a full ester of a tetravalent to octavalent aliphatic polyhydric alcohol having 5 to 30 carbon atoms and an aliphatic carboxylic acid having 10 to 22 carbon atoms, having an acid value of 4 to 20.

Abstract: Flame-proofed thermoplastic compositions include organophosphorus compounds as flame retardants; thermoplastic articles shaped therefrom do not experience deterioration of the appearance of the surfaces thereof by corrosion or deposition.

Abstract: The invention relates to alkylphosphonous acids, salts and esters of formula (I) A-P(?O)(OX)—H (I) wherein A is C2-C20alkyl, C2-C20alkylene, and C8-C20 alkaryl are optionally substituted, and X is H, alkyl, aryl, alkylaryl, alkenyl, substituted alkyl, aryl, alkaryl, alkenyl, ammonium, primary, secondary, tertiary, quaternary alkyl and/or aryl ammonium, an alkali metal, an alkaline earth metal, a metal of the third and fourth main group and the second, fourth and eight sub-group or a metal of the lanthanoid group. The invention also relates to methods for producing same and to the uses of said compounds.

Abstract: A composition comprises, based on the total weight of the composition: from 20 to 90 wt. % of a polyester component comprising a poly(butylene terephthalate); from 5 to 35 wt. % of a flame retardant phosphinate of the formula (I) [(R1)(R2)(PO)—O]?mMm+??(I) a flame retardant diphosphinate of the formula (II) [(O—POR1)(R3)(POR2—O)]2?nMm+x??(II), and/or a flame retardant polymer derived from the flame retardant phosphinate of the formula (I) or the flame retardant diphosphinate of the formula (II); from 1 to 25 wt. % of a melamine polyphosphate, melamine cyanurate, melamine pyrophosphate, and/or melamine phosphate; from greater than zero to 50 wt. % of a glass fiber having a non-circular cross-section; and from 0 to 5 wt. % of an additive selected from the group consisting of a mold release agent, an antioxidant, a thermal stabilizer, an antioxidant, and a UV stabilizer; wherein the components have a combined total weight of 100 wt. %.

Abstract: A poly(arylene ether) composition includes a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene, a flame retardant, and a poly(arylene ether)-polysiloxane block copolymer reaction product that itself includes a poly(arylene ether)-polysiloxane block copolymer. The composition is useful for forming extruded articles, including insulation for wire and cable. The poly(arylene ether)-polysiloxane block copolymer contributes improved flame retardancy and, in many cases, improved physical properties to the composition.

Abstract: The mixture of the invention comprises at least one cycloaliphatic polyisocyanate and at least one solvent comprising an ester function and an ether function. An aqueous emulsion can be obtained from this mixture which also comprises a compound bearing a function with a mobile hydrogen, selected from primary or secondary hydroxyl functions, phenol functions, primary and/or secondary amino functions, carboxylic functions and a thiol function or a compound containing precursor functions capable of freeing hydroxyl functions. The emulsion can be used for the manufacture of coatings on a substrate of cement, of wood or especially of leather, and also for the manufacture of adhesives.

Abstract: The invention relates to flameproof polyamide molding compositions, comprising 30-80% by weight of a semi-aromatic, partially crystalline polyamide and 1-30% by weight of a flame retardant containing a phosphinic acid salt and/or a diphosphinic acid salt.

Abstract: There is provided high temperature flame retarded polyamides which provide superior properties in molded articles while maintaining high flow in the molding process. The resin compositions include, in addition to the polyamide and flame retardant, talc and at least one inorganic reinforcing agent and/or filler other than talc. Processes for their preparation and articles made from these compositions are also disclosed.

Abstract: There is provided high temperature flame retarded semiaromatic polyamides which provide superior properties in molded articles while maintaining high flow in the molding process. The resin compositions include, in addition to the polyamide and flame retardant, aromatic organic acid and at least one inorganic reinforcing agent and/or filler. Processes for their preparation and articles made from these compositions are also disclosed.

Abstract: Disclosed is a flame-retardant polyamide composition which is excellent in mechanical properties such as toughness, and heat resistance, flame retardancy and flow ability during a reflow soldering process. In addition, this polyamide composition exhibits high thermal stability during molding. Specifically disclosed is a flame-retardant polyamide composition containing (A) 20-80% by weight of a specific polyamide resin, (B) 10-20% by weight of a metal phosphinate, (C) 0.05-1% by weight of a lithium salt, a calcium salt, a barium salt, a zinc salt or an aluminum salt of montanic acid, behenic acid or stearic acid. It is preferable that this flame-retardant polyamide composition contains no halogen flame retardant.

Abstract: The present subject matter relates generally to polymer compositions, and more particularly to irradiated polymer compositions comprising at least one non-phenolic stabilizer. The present polymer compositions comprise an unexpected balance of properties after being subjected to irradiation treatments, including an unexpected combination of a lower melt flow rate ratio (MFRr) and high melt tension after being irradiated, while minimizing negative yellowing effects.

Abstract: A composition includes in relative proportion: 60 to 94 parts by weight of mineral oil; 1 to 30 parts by weight of at least one thermoplastic elastomer; and 5 to 30 parts by weight of non-halogenated metal phosphinate, wherein the non-halogenated metal phosphinate has a decomposition temperature of at least 240° C., and wherein the composition is a gel. A method of making the composition and its use as an encapsulant are also disclosed.

Abstract: A process for stabilising a natural or synthetic organic polymer or copolymer obtained from a water based latex or emulsion of the polymer or copolymer comprising adding to the later or emulsion prior to coagulation of the polymer or copolymer a substantially water-free self-emulsifying liquid stabiliser mixture comprising (a) a phosphite or phosphonite stabiliser; (b) a phenolic antioxidant and (c) an emulsifying agent. The preferred stabiliser package is a blend of 2 parts by weight liquid phosphite stabiliser to 1 part by weight liquid phenolic antioxidant which has dissolved in it a fatty acid ester emulsifier.

Abstract: 4,4?-Biphenol polysulfone composition comprising: as main ingredient, at least one polysulfone comprising more than 50 mol. % of recurring units formed by reacting 4,4?-biphenol with at least one sulfone monomer SM1 (Bo1 PSU), more than 0.01% by weight, based on the total weight of the composition, of at least one phosphorus-containing compound chosen from organic phosphites and organic phosphonites, and at least one polysulfone comprising more than 50 mol. % of recurring units formed by reacting bisphenol A with at least one sulfone monomer SM2(Bo1 A PSU). 4,4?-Biphenol polysulfone composition containing at least 60% by weight, based on the total weight of the 4,4?-biphenol polysulfone composition, of at least one Bo1 PSU, said composition having a melt viscosity ratio at 410° C. and at a shear rate of 50 s?1 (VR40) of below 1.20. Process which is especially well-suited to prepare the above compositions. Articles made from the above compositions or prepared by the above process.

Abstract: A flame retarded thermoplastic polymer composition comprising a thermoplastic polymer and a mixture of metal salts of dialkylphosphinic and monoalkylphosphinic acid providing improved flame retardant performance and better processability compared to a similar composition containing only a salt of dialkylphosphinic acid.

Abstract: To provide a flame-retardant polyamide resin composition generally excellent in flame resistance, mechanical characteristics and electrical characteristics, and suitable for electrics/electronics components and vehicles. Used is a flame-retardant polyamide resin composition comprising, a polyamide resin (A), a phosphorus-containing flame retarder (B), and glass fiber having a non-circular cross-section (C), wherein the contents in the composition are 15 to 78% by weight for the polyamide resin (A), 2 to 20% by weight for the phosphorus-containing flame retarder (B), and 20 to 65% by weight for the glass fiber having a non-circular cross-section (C).

Abstract: The invention relates to flame retardant mixtures for thermoplastic polymers, comprising a phosphinic salt of the formula (I) where M=Al (component A) and a fusible phosphinic salt of the formula (I) where M=Zn (component B), in which R1 and R2 are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl; and n is from 1 to 3; where the amount of component A present is from 5 to 95% by weight and the amount of component B present is from 5 to 95% by weight, and also flame-retardant polymers. The polymers are polyamides which contain, as aromatic dicarboxylic acids, terephthalic acid or isophthalic acid.

Abstract: The invention relates to phosphorus-containing mixtures containing compounds of the formula RO—PO(A)-CH2—CH2—CO2H and??(I) HO—PO(A)-CH2—CH2—CO2R??(II) in which A is C1-C18-alkyl, C6-C18-alkylaryl, C6-C18-aralkyl or aryl, R is (D,E)C?C(B, R5), H B, D, E are identical or different and are each H or C1-C18-alkyl R5 is C1-C20-alkylene, a process for their preparation and their use.

Abstract: Phosphate derivatives of a 1,3,5-triazine compound, preferably melamine polyphosphate, which are heat-resistant at the processing temperature, are selected which have an average condensation coefficient n (number average)>20, a pH-value of a 10% slurry of the polyphosphate derivative in water at 25° C. of 5 or higher, a molar ratio of 1,3,5-triazine compound to phosphorus (M/P)<1.1 and a decomposition temperature>320° C. They can be produced by heat treatment of an orthophosphate or condensed phosphate with an average condensation coefficient n (number average) below 20 in an ammonia atmosphere at a temperature in the range of 300 to 400° C. until the average condensation coefficient is above 20 and the molar ratio of 1,3,5-triazine compound to phosphorus (M/P) is below 1.1. The polyphosphates of the invention can be represented in simplified form by the following general formula: wherein M denotes a 1,3,5-triazine compound and n denotes the average condensation coefficient.

Abstract: A dry-erase ink is disclosed for writing or marking on glossy and non-porous surfaces, in particular whiteboards or dry-erase boards, which ink is wipeable or erasable after drying without leaving visible colored residues. The ink contains a solvent, one or more dye(s) soluble in the solvent, a film forming resin such as polyvinylpyrrolidone or a derivative thereof, a strongly-alkaline substance such as a diamine and/or a quaternary organic ammonium hydroxide, an organic acid or a salt thereof and, if desired, a nonvolatile, liquid component serving as a release agent.

Abstract: A method of making polycarbonate includes the steps of forming polycarbonate by a melt transesterification method using an activated diaryl carbonate, and compounding the polycarbonate with a phosphorus-containing compound that has an abstractable proton or hydrolyzable group. The phosphorus-containing compound is compounded with the polycarbonate in an amount sufficient to result in an improvement in the color properties of the polycarbonate as compared to pellets formed from the same polycarbonate without addition of the phosphorus-containing compound.

Abstract: Disclosed are polyamide compositions containing non-halogenated flame retardant and zinc stannate that have reduced corrosion effects on melt processing equipment.

Abstract: A flame retardant polyamide resin composition having excellent extrudability and moldability, being free of generating a highly corrosive hydrogen halide gas upon combustion, exhibiting very high flame retardancy, having excellent mechanical properties and electrical properties and being suited for use in electrical and electronic parts and parts for automobile electrical equipments, and a molded article thereof are provided. A polyamide resin composition comprising 100 parts by weight of an aliphatic polyamide resin (A) having a viscosity number of 70 to 200 ml/g, 0.1 to 30 parts by weight of a polyphenylene ether-based resin (B), and 5 to 100 parts by weight of flame retardant agent (C) comprising at least the following components (a), (b) and (c); (a) a reaction product of a melamine and a phosphoric acid, (b) a phosphinic acid salt and/or a diphosphinic acid salt, and (c) a metal salt of boric acid, wherein a compounding weight ratio (a):(b):(c) of the flame retardant agent components is 1:(0.5 to 2.

Abstract: The present invention discloses a stabilized composition comprising a) an synthetic polymer subject to oxidative, thermal or light-induced degradation, b) a filler, c) a monomeric or polymeric dispersing or solvating agent free of nitrogen atoms having amphiphilic properties, d) a monomeric or polymeric dispersing or solvating agent having amphiphilic properties containing an amido group or an ethoxylated amino group, and e) a stabilizer. The mixture of components (c), (d) and (e) show a surprising synergistic effect in stabilizing a synthetic polymer which contains a filler.

Abstract: A flame retardant poly(arylene ether) composition is described. In addition to the poly(arylene ether), the composition includes a polyolefin component, and a flame retardant composition that includes a metal dialkyl phosphinate, a nitrogen-containing flame retardant, and a liquid triaryl phosphate. The polyolefin component can be a polyolefin polymer and/or the polyolefin block of a poly(alkenyl aromatic)-polyolefin block copolymer. The composition is particularly suitable as a replacement for poly(vinyl chloride) in insulation for wire and cable.

Abstract: The invention relates to a phosphorus-containing flame retardant formulation for cellulose-containing moldings, comprising from 0.1 to 99.9% by weight of a resin of an organic nitrogen compound and from 0.1 to 99.9% by weight of a phosphorus-containing flame retardant.

Abstract: The invention comprises an adhesion promoter for a printing ink and a printing ink comprising the adhesion promoter. The adhesion promoter comprises the product of (a) mixing together a solution of a polymer or synthetic resin with an organophosphorus compound, and then (b) mixing the mixture formed in (a) with a titanium compound selected from a titanium halide, alkoxide, halo-alkoxide or a condensed titanium alkoxide or a mixture of more than one of these titanium compounds.

Abstract: The present invention relates to polycarbonate compositions comprising: A) an aromatic polycarbonate and/or aromatic polyester carbonate; B) a graft polymer obtainable by co-precipitation of a mixture of at least two graft polymer dispersions B.1 and B.2, wherein the production of the graft polymer component B.1 takes place using at least one redox system as initiator and wherein the production of the graft polymer component B.2 takes place using at least one persulfate compound as initiator; C) optionally a vinyl (co)polymer and/or polyalkylene terephthalate; D) optionally a phosphorus-containing flame retardant; E) at least one phenolic antioxidant; F) optionally a neutral phosphorus- or sulfur-containing co-stabilisers (synergists); and G) optionally additives. Compositions of the present invention are distinguished by an optimum combination of good hydrolysis resistance and a light natural colour.

Abstract: Disclosed is a flame retardant thermoplastic resin composition that includes about 100 parts by weight of a mixed resin (A) including about 10 to about 90 wt % of an aromatic polyamide resin (A-1) and about 10 to about 90 wt % of a polyphenylene sulfide resin (A-2), about 0.5 to about 30 parts by weight of a phosphinic acid metal salt flame retardant (B), and about 10 to about 100 parts by weight of a filler (C).

Abstract: The present invention relates to a resin composition containing (A) a polyamide having a viscosity number (as measured in the 96% sulfuric acid according to ISO 307 (1997)) of from 50 ml/g to 250 ml/g; (B) a polyphenylene ether; and (C) a phosphinate represented by a particular formula. The resin composition according to the present invention is excellent in flame retardancy, impact resistance and thin-wall moldability and can significantly suppress gas generation during the molding process and substantially inhibit the generation of deposits on a mold during injection molding. As a result, a molded product thereof excellent in surface appearance can be provided.

Abstract: A flame-retardant resin composition comprises 25 to 150 parts by weight of (B) a thermoplastic polyester1 elastomer, 5 to 40 parts by weight of (C) a phosphinic acid compound comprising a salt of at least one member selected from the group consisting of a phosphinic acid, a diphosphinic acid, and a polymerized product thereof, and 0.5 to 20 parts by weight of (D) an epoxy compound, relative to 100 parts by weight of (A) a polybutylene terephthalate-series resin. Such a flame-retardant resin composition is useful for various molded products and for covering the surface of an electric wire, or the like. The present invention provides a halogen-free flame-retardant resin composition which has a high heat resistance and a high flame retardancy and is excellent in hydrolysis resistance, abrasion resistance, and moldability (e.g., extrusion properties).

Abstract: An article comprises a compatibilized poly(arylene ether)/polyamide blend, an optional electrically conductive filler, a phosphinate, and flame retardant augment selected from the group consisting of melamine polyphosphate, zinc borate, low melting glass, talc, and combinations of two or more of the foregoing flame retardant augments.

Abstract: The present invention relates to flame-retarded flexible thermoplastic compositions of high thermomechanical strength, containing no halogen compound, comprising a graft copolymer containing polyamide blocks and composed of a polyolefin backbone and on average at least one polyamide graft, in which the grafts are attached to the backbone by the radicals of an unsaturated monomer (X) having a function capable of reacting with an amine-terminal polyamide, the radicals of the unsaturated monomer (X) being fixed to the backbone by grafting or copolymerization from its double bond, wherein said composition comprises, in a mixture: 50% to 70% by weight of the graft copolymer containing polyamide blocks, 25% to 35% by weight of a flame retardant selected from ammonium phosphates, phosphinates, pyrophosphates, and polyphosphates, approximately 2% by weight of molecular sieve, such as a zeolite, or of hydrotalcite(s).

Abstract: Disclosed herein is a flame resistant composition comprising a compatibilized blend of a polyphthalamide and a poly(arylene ether); and a phosphinate, wherein the composition is substantially free of linear aliphatic polyamides.

Abstract: A flame retardant poly(arylene ether)/polyamide composition includes a poly(arylene ether), a polyamide, about 5 to about 15 weight percent glass fiber, and a flame retardant consisting of a metal dialkyl phosphinate. Methods of preparing the composition are described, as are articles that include it.

Abstract: The present invention relates to halogen-free flame-retardants for thermoplastic polyesters with UL 94 V-0 classification and with particularly good mechanical properties and high tracking resistance.

Abstract: A thermoplastic composition comprises, based on the total weight of the composition: 51-90 wt % polyester, 10-49 wt % ABS impact modifier; 0-20 wt % omultifunctional epoxy compound; 0-40 wt % filler; 0-2 wt % fibrillated fluoropolymer; and more than 0 to 5 wt % of a stabilizer composition. An article blow molded or injection molded from the composition has a multi-axial impact total energy from 30-100 Joules at ?30° C. and a ductility of more than 90%; a permeability of more than 0 and less than or equal to 1.5g/m2-day to ASTM D 471-98 Fuel C, measured after exposure to ASTM D 471-98 Fuel C vapor for 20 weeks at 40° C.; an MVR of 1-20 cc/10 min., measured at 265° C.; a flexural modulus of greater than 1300 MPa; and retains at least 75% of its initial tensile elongation at break, after exposure to Fuel E85 for 28 days at 70° C.

Abstract: A thermoplastic composition comprises, based on the total weight of the composition: 51-90 wt % of a polyester, 10-49 wt % of an ABS impact modifier; 0 to 20 wt % of a multifunctional epoxy compound; 0-40 wt % of a filler; 0-2 wt % of a fibrillated fluoropolymer; and from more than 0 to 5 wt % of a stabilizer composition. An article blow molded or injection molded from the composition has a multi-axial impact total energy from 40-100 Joules at ?30° C.; a ductility of more than 90%, a permeability of more than 0 to less than or equal to 1.5g/m2-day, measured after exposure Fuel C vapor for 20 weeks at 40° C.; an MVR of 1-20 cc/10 min; a flexural modulus of greater than 1300 MPa; and retains at least 75% of its initial tensile elongation at break after exposure to Fuel E85 for 28 days at 70° C.

Abstract: The present invention describes a process for preventing the formation of aldehydic contaminants in polyether polyols, polyester polyols or polyurethanes which comprises incorporating into said polyether polyols, polyester polyols or polyurethanes an effective amount of a) a phenolic antioxidant, b) one or more compounds selected from (i) aminic antioxidants, (ii) benzofuran-2-ones, and (iii) phosphites or phosphonites, or (iv) mixtures thereof.

Abstract: Flame retardant thermoplastic elastomer composition comprising a thermoplastic vulcanizate composition and non-halogenated flame retardant.

Abstract: Provided is an insulating material satisfying IEC60695-12 Standard for the molded parts composed of a flame retardant PBT resin composition, specifically for a thin-walled molded article, even without applying secondary working. For details, to (A) 100 parts by weight of a polybutylene terephthalate resin, there are added (B) 5 to 50 parts by weight of a halogen-based flame retardant, (C) 5 to 40 parts by weight of an flame retardant assistant, (D) 5 to 100 parts by weight of a liquid crystalline polymer, and (E) 0 to 200 parts by weight of an inorganic filler.

Abstract: The present invention relates to impact-modified polycarbonate compositions comprising A) 50 to 99.4 parts by wt. (in each case based on the sum of the parts by weight of components A+B+C) of aromatic polycarbonate and/or aromatic polyester carbonate, B) 0.5 to 20 parts by wt. (in each case based on the sum of the parts by weight of components A+B+C) of graft polymer containing a silicone rubber or silicone/acrylate rubber, C) 0.1 to 30 parts by wt. (in each case based on the sum of the parts by weight of components A+B+C) of a salt of a phosphinic acid. which are distinguished by an optimum combination of good flameproofing, high heat distortion temperature, good mechanical properties and good resistance to chemicals, the use of the polycarbonate compositions for the production of shaped articles and the shaped articles themselves.

Abstract: A method for preparing a molded article includes the steps of (a) obtaining a polycarbonate resin and (b) molding the polycarbonate resin. The polycarbonate resin is made by a transesterification reaction using an activated diaryl carbonate such that the polycarbonate is susceptible to the formation of internal ester linkages (IEL). The method occurs with the proviso that the polycarbonate resin, the molding conditions or both are selected to control the amount of IEL formed during the molding process to a level of less than 0.4 mol %.

Abstract: The invention relates to mixtures of diorganylphosphinic acids and carboxylic acids of the formula [cationn+(phosphinate?)x(carboxylic acid anionz?1/z)y] where n=from 1 to 4 x=from 0.01 to n?0.01 y=n?x z=from 1 to 4, where “cation” means an element of the second main and/or transition group, an element of the third main and/or transition group, an element of the fourth main and/or transition group, an element of the fifth main and/or transition group, an element of the sixth transition group, an element of the seventh transition group, and/or an element of the eighth transition group, “phosphinate” means the anion of diorganylphosphinic acids of the formula where R1 and R2 are identical or different and, independently of one another, are H, C1-C6-alkyl, linear or branched, and/or aryl, and/or hydroxyalkyl, and “carboxylic acid anion” means C1-C18 carboxylic acid anions. The invention also relates to processes for their production, and to their use.