Abstract: A composition of a copolymer of ethylene and vinyl alcohol, 0.01 to 0.5 weight percent of a monovalent or divalent metal salt of an aliphatic carboxylic acid having 3 to 9 carbon atoms and 0.05 to 0.5 weight percent of a hindered phenolic antioxidant exhibits improved stability toward oxidative gel formation at elevated temperatures.

Abstract: Esters of N,N-bis(hydroxyethyl)hydroxylamines corresponding to the formula ##STR1## wherein R are various aliphatic and aromatic groups, and X is hydroxy or substituted carboxyethyl are effective in stabilizing various organic materials against oxidative, thermal and actinic degradation.

Abstract: Compositions comprising a polyphenylene ether and, optionally, a styrene resin, an aromatic phosphate, phosphonate or phospine oxide, an aromatic halogen compound and an impact modifier comprising a diene polymer have excellent flame retardant properties during large scale flammability tests. The compositions will tolerate large amounts of aromatic halogen compound without discoloration and processing difficulties. In comparison with compositions of the present state of the art, peak burn temperatures are reduced, smoke is less dense, and flaming drips are eliminated in large as well as small scale burn tests.

Abstract: Magnetic inks useful for the production of magnetic recording products are disclosed. The present magnetic inks contain ferromagnetic barium ferrite particles dispersed in a flexible polymer medium.

Abstract: A polyester, wherein pendent phosphorus atoms are bound to the main chain of the polyester, having an excellent flame resistance and a high intrinsic viscosity can be stably produced without deteriorating the properties of said polyester by preliminarily copolymerizing a polyester with a specific unsaturated compound and then reacting the unsaturated bond thus-formed with a specific phosphorus compound having a P-H bond.

Abstract: Improved polyamide molding compositions are characterized in that(a) the polyamide essentially contains the polycondensation product of adipic acid, terephthalic acid and hexamethylenediamine,(b) the molding compositions are reinforced with glass fibers and(c) a mixture of copper-, halogen- and phosphorus-containing compounds is present as stabilizer.

Abstract: A process for enhancing the fabrication of thermoplastic polymers entailing the addition of from 0.01 to 1 part, per hundred parts of thermoplastic polymer, of a processing aid, said processing aid comprising a processing additive, such as a silicon or a polyol, and a processing adjuvant, such as a phosphate.

Abstract: The present invention relates to high impact strength flame-retardant polycarbonate moulding compositions, which are characterized in that they consist of halogen-free polydiorganosiloxane-polycarbonate block copolymers, halogen-free copolymers, halogen-free phosphorus compounds, tetrafluoroethylene polymers and, if appropriate, stabilizers, pigments, flow control agents, mould release agents and/or antistatics, and to processes for their preparation.

Abstract: The invention relates to flame-resistant mixtures of polycarbonates with graft polymers and copolymers which are characterized in that they contain modified polyalkylene ethers as antistatic agent.

Abstract: A flameproof, halogen-free thermoplastic molding material contains, based on the molding material consisting of A, B, C, D and E,(A) 40 to 95% by weight of a thermoplastic halogen-free aromatic polycarbonate based on a diphenol,(B) from 5 to 30% by weight of one or more halogen-free graft polymers obtained from, based on B,(b.sub.1) an elastomer (rubber), which accounts for from 40 to 80% by weight, and(b.sub.2) a graft shell on this elastomer which accounts for from 20 to 60% by weight,(C) from 5 to 50% by weight of one or more halogen-free thermoplastic copolymers consisting of, based on C, from 50 to 95% by weight of styrene, .alpha.-methylstyrene, styrene which is substituted in the nucleus, methyl methacrylate or a mixture of these, and from 50 to 5% by weight of (meth)acrylonitrile, methyl methacrylate, maleic anhydride, N-substituted maleimide or a mixture of these,(D) 1 to 25% by weight of one or more halogen-free phosphorus compounds of the formula ##STR1## where R.sup.1, R.sup.2 and R.sup.

Abstract: This invention relates to mixtures of polycarbonates with graft polymers and copolymers which have been rendered flame resistant and which are characterized by containing modified polyalkylene ethers as antistatic agents.

Abstract: The invention relates to amine salts of phosphorous acid having a structure of the s-triazine, 1,2,4-triazole, benzimidazole, heptazine, pyrimidine, or piperazine type which may be combined with a polyhydroxylated compound as fireproofing agents for plastics, particularly polyamides and polyolefins, the process of fireproofing said plastics, and the resultant fireproofed plastics.

Abstract: Novel compatibilized polyphenylene ether-polyamide compositions are provided by this invention, comprising polyphenylene ether resin, polyamide resin, a compatibilizing agent, and a melt flow-improving compound. The compatibilizing agent may be selected from a wide variety of materials, such as saturated aliphatic polycarboxylic acids or derivatives thereof; various silane compounds; and functionalized polyphenylene ethers. A specific example of a compatibilizer is citric acid. Specific examples of melt flow-improving compounds are stearic acid, oleic acid, and linolenic acid.

Abstract: Compositions of thermoplastic polymers comprising, in mixture, a thermoplastic polymer and a mixture of self-extinguishability-conferring additives, formed by:ammonium phosphate or ammonium polyphosphate: ##STR1## (wherein p is preferably equal to or greater than 50); phosphorus-containing compound definable by means of the general formula: ##STR2## (wherein R.sub.1, R.sub.2 and R.sub.3 have the meaning as indicated in the disclosure).

Abstract: The present invention provides thermoplastic flame-retardant moulding compositions containing halogen-containing copolycarbonates, styrene/maleic anhydride copolymers, phosphorus compounds of the formula (I) ##STR1## and tetrafluoroethylene polymers and, if desired, further known additives.

Abstract: Thermoplastic compositions useful for preparation into shaped articles are provided which are based on mixtures of an aromatic polycarbonate resin, such as a poly(bisphenol-A carbonate) resin, and a copolymer of ethylene and acrylic or methacrylic acid. The ethylene copolymer can be an ionically crosslinked addition polymer (ionomer) as provided when the acid groups are neutralized with metal cations, or they can simply be random copolymers which are not ionically crosslinked. Articles prepared from the compositions are more resistant to undergoing delamination than counterpart compositions based on mixtures of polycarbonate and polyethylene.

Abstract: The silicone rubber composition comprises, in addition to the conventional ingredients of a high-polymeric diorganopolysiloxane and a reinforcing silica filler, a specific phosphorus-containing organic compound, such as phosphinates, phosphonates and phosphates, in a limited amount. By virtue of this unique ingredient, the composition can give a cured silicone rubber product having greatly improved resistance against dynamic fatigue.

Abstract: A composition of matter including a polymer sensitized to the heating effects of microwave energy which comprises said polymer and a microwave sensitizing amount of a particulate, layered compound comprising a tetravalent atom and a pentavalent atom, selected from the group consisting of elements of Group V of the Periodic Table of the Elements, and having an atomic weight of greater than 30, dispersed throughout said polymer.

Abstract: N-hydroxyiminodiacetic and dipropionic acids and esters thereof corresponding to the formula ##STR1## are effective in stabilizing various organic materials against oxidative, thermal and actinic degradation, said derivatives being particularly effective as color improvers and process stabilizers in synthetic polymers containing phenolic antioxidants and/or metal salts of fatty acids and as stabilizers in lubricants.

Abstract: The use of acyl phosphanoxides of the formula I ##STR1## in which each R, independently of the others, can denote linear or branched C.sub.1 -C.sub.12 -alkyl, cycloalkyl or optionally mono- or poly-C.sub.1 -C.sub.12 -alkyl-substituted, alkoxy-substituted or halo-substituted aryl or phenyl,for improvement of the mechanical properties in ABS moulding materials.

Abstract: The present invention relates to high-impact, flame-repellant thermoplastic polycarbonate moulding compositions consisting of halogen-free polycarbonates, halogen-free copolymers of styrenes and (meth)acrylonitrile, halogen-free phosphorus compounds of the formula (I) ##STR1## tetrafluoroethylene polymers and small amounts of graft polymers and, if appropriate, effective amounts of stabilizers, pigments, flow control agents, mould release agents and/or antistatics, and a process for their preparation.

Abstract: A method for improving a production characteristic of flame-retardant polyurethanes. The characteristic may be selected from the group consisting of(1) processability;(2) scorch;(3) odor; and(4) flame-retardant efficiency.The method comprises incorporation into a polyurethane an amount effective to reduce combustibility of a haloether phosphorate flame-retardant under conditions sufficient to improve said characteristic. Also, the flame-retardant polyurethane composition such as prepared by said method. Preferably, the polyurethane is a foam, especially a flexible foam and most especially flexible slabstock foam.

Abstract: A resin composition which consists essentially of a thermoplastic resin, in which are included an alkali metal salt, and at least one kind of substances selected from the group consisting of vinylidene fluoride resin and dipolar aprotic solvents.

Abstract: An interlayer of polyvinyl butyral resin containing a compatible mixture of additives dispersed therein providing fire-resistant properties thereto, said mixture comprising a plasticizer blend of (a) a char-forming component, such as an organic phosphate, and an oxygen sequestering agent, such as an organic phosphite, wherein the char-forming agent is the major constituent; (b) a nucleating agent such as fumed silica for dispersing the fire decomposition products of the interlayer; and (c) a heat reactive bonding resin such as silicone resin.

Abstract: Self-extinguishing thermoplastic polyester molding materials containing linear aromatic polyesters, polyphenylene ethers and additives containA. from 20 to 50% by weight of polyethylene terephthalate and/or polybutylene terephthalate, as much as 20 mol % of which may be modified with other dicarboxylic acids and/or diols,B. from 10 to 40% by weight of one or more polyphenylene ethers,C. from 5 to 15% by weight of one or more alkali metal or alkaline earth metal phosphates, high-boiling phosphoric acid esters, phosphorous acid esters, phosphinic acid esters or phosphonous acid esters or organic phosphine oxides,D. from 5 to 30% by weight of framework-forming fillers,E. from 0 to 30% by weight of one or more aromatic polycarbonates,F. from 0 to 30% by weight of glass fibers,G. from 0 to 20% by weight of one or more elastomeric polymers,H. from 0 to 20% by weight of one or more styrene polymers, the percentages of components A to H summing to 100, andI. if required, additives in effective amounts.

Abstract: This invention relates to flame resistant moulding compounds produced from mixtures of styrene polymers halogenated organic compounds, special polyphosphonic acid amides and optionally conventional additives.

Abstract: The mechanical properties of polyphenylene ether-polyamide mixtures are improved by the addition of an oxidized polyolefin wax. In addition, a phosphite is preferably added.

Abstract: An acrylic resin composition having excellent permanent antistatic properties, which comprises a copolymer of an acrylic monomer comprising predominantly methyl methacrylate with a specific sulfonate and optionally a specific alkylene oxide and/or acidic phosphate, and a method for the production thereof. The acrylic resin composition of the invention shows excellent antistatic properties without losing the excellent properties of methacrylic resin, such as excellent transparency, mechanical properties, heat resistance, etc., and is useful for various utilities, such as preparation of advertising displays, lighting fixtures, covers, nameplates, and various decorations.

Abstract: Novel polyphenylene ether-polyamide compositions having improved compatibility, elongation and impact properties as well as improved processability are prepared comprising a polyphenylene ether, a polyamide and a property improving amount of an acyl modified polyphenylene ether compatibilization agent. These compositions may further comprise alkenyl aromatic polymer or a rubbery polymer.

Abstract: A method for producing foam polyolefin products which are light-stable and weather-resistant are obtained by the combined use of the following stabilizers:(a) phenolic antioxidants,(b) substituted benzophenones and/or substituted benzotriazoles, and(c) sterically hindered amines.

Abstract: A thixotropic gel composition comprising an .alpha.-cyanoacrylate monomer, stabilizer, plasticizer and free radical scavenger is improved with the addition of fibers, spheres or mixtures of the same of certain materials which are insoluble in and inert to the .alpha.-cyanoacrylate monomer. The fibers or spheres composed of such materials as polyolefins, polyesters or polyamides enhance the physical and chemical characteristics of the thixotropic gel.

Abstract: A composition and method for inhibiting ferrous metal corrosion in aqueous systems consisting essentially of (A) a copolymer of styrene sulfonic acid and maleic anhydride or maleic acid, and (B), water-soluble salts of said copolymer; and (C) a blend of two phosphonates consisting of (1) 2-phosphonobutane-1,2,4-tricarboxylic acid and (2) one member of the group consisting of (a) aminotrimethylene phosphonic acid and (b) hydroxy ethylidene diphosphonic acid. A preferred dosage, based on the active ingredient, is 7.5 ppm of styrene sulfonic acid/maleic anhydride copolymer and 6.0 ppm of phosphonate (1) and either 3.5 ppm of phosphonate (2a) of 4.2 ppm of phosphonate (2b). This relationship can be maintained during a total dosage of 0.01 to 500 ppm.

Abstract: High impact nylon molding compounds are provided by maleating an ethylene-propylene copolymer at an elevated temperature in the presence of an organic peroxide initiator and thereafter grafting the maleated adduct thus prepared onto the free amino end group of a nylon polymer, such as nylon-6 or nylon-66, at an elevated temperature, illustratively by extrusion. A reinforced composite is obtained by extrusion-compounding the grafted nylon polymer with glass fiber.

Abstract: Thermoplastic molding compositions comprising 65-80% by weight (based on the molding composition) of a polyvinylbutyral which preferably contains 19-28% by weight (based on the polyvinylbutyral) of vinyl alcohol units, and 35-20% by weight (based on the molding composition) of a plasticizer mixture of 50-99% by weight (based on the plasticizer mixture) of a di-, tri- or tetra-glycol diester and 50-1% by weight (based on the plasticizer mixture) of a phosphoric acid triester. The preparation of the molding compositions by mixing the constituent components and their use for the production of shaped thermoplastic articles, in particular high-strength films for use as the bonding intermediate layer in the production of laminated glass.

Abstract: A thermoplastic molding composition having good gloss and physical properties is disclosed. This composition contains in intimate admixture: a vinyl chloride polymer; a copolymer of a vinyl aromatic compound and an .alpha.,.beta.-unsaturated cyclic anhydride; a styrene-maleic anhydride copolymer having a number average molecular weight within the range of from about 1000 to about 8000; and an alkyl diphenyl phosphite. The copolymer of a vinyl aromatic compound and an .alpha.,.beta.-unsaturated cyclic anhydride can be rubber modified.

Abstract: Amino-group bearing, low molecular weight 1,3-butadiene polymers used as stabilizers for molded or unshaped plastics in amounts of 0.01 to 2.0 weight percent referred to the plastic, where the amino-group bearing component is derived from a substituted piperidine having the general formula: ##STR1## where R represents similar or different alkyl groups having 1 to 3 carbon atoms.

Abstract: Novel structural adhesives for bonding metals and plastics are disclosed. The adhesives, comprising a solution or dispersion of a polymeric material, a monomer which is copolymerizable with such polymeric material and phosphorous-containing compounds are characterized by improved performance at elevated temperatures and excellent resistance to thermal degradation.

Abstract: An adhesive composition for bonding cured layers of EPDM together is provided which comprises a neutralized sulfonated EPDM elastomeric terpolymer, an organic hydrocarbon solvent or mixture of an organic hydrocarbon solvent and an aliphatic alcohol, a para-alkylated phenol formaldehyde tackifying resin and an alkylphenol or ethoxylated alkylphenol. A method for bonding the cured layers of EPDM together utilizing the adhesive composition is also provided.

Abstract: A flame retardant polyphenylene ether-styrene resin composition having a UL-94 rating of V-1 or better, a heat distortion temperature greater than 92.degree. C. and a melt viscosity at 260.degree. C. of less than 200 pascal second is obtained by incorporating with said polyphenylene ether-styrene resin composition from about 4 to about 7 parts per hundred of a triaryl phosphate ester and from about 0.5 to about 3 parts per hundred of a 3-hydroxyalkyl phosphine oxide having the formula: ##STR1## wherein R.sub.1 may be the same or a different radical selected from the group consisting of hydrogen and the methyl radicals, R.sub.2 is a radical of 4 to 8 carbon atoms and n is either zero or one.

Abstract: The hot-melt adhesives of the present invention comprise a blend of at least one modified polyethylene resin, a tackifying resin and a combination of halogenated organic compounds and inorganic compounds containing antimony, boron or tin. These hot-melt adhesives have a novel combination of properties including excellent aging properties in combination with improved strength and low viscosity, and they are fire resistant or self-extinguishing.

Abstract: Self-extinguishing molding materials, comprising (A) a polymer of a vinyl-aromatic compound, especially a styrene polymer, which has been made impact-resistant (B) a polyphenylene ether and (C) a flameproofing additive, with or without (D) conventional additives, wherein one part of the soft component of the impact-resistant polymer of the vinyl-aromatic compound has a mean particle size of .ltoreq.1.5 .mu.m and the other part has a mean particle size of .ltoreq.3 .mu.m. Such molding materials not only have good self-extinguishing properties but also give moldings having a particularly uniform matt surface.

Abstract: Liquid antimony organic sulfur-containing compounds are rendered stable at ambient conditions by incorporating an effective amount of an ethoxylated organo phosphate ester. The stable liquid compositions contribute to the stability of vinyl halide resins.

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: Silica-reinforced rubber compositions are prepared employing a mercaptan-substituted phosphonate as a coupling agent. Preparation and use of the mercaptan-substituted phosphonate coupling agent is illustrated using dimethyl 3-mercaptopropylphosphonate and a butadiene/styrene emulsion polymerized copolymer reinforced with a precipitated hydrated silica.

Abstract: Thermoplastic molding compositions of a polyphenylene ether resin and optionally an impact modifier are improved by addition of a minor amount of tribenzylphosphine oxide which depresses the viscosity and enhances the melt flow of the resin.

Abstract: This invention is a method of manufacturing heat-stable polyesters, characterized in that phosphonic acid compounds are added, when heat-stable polyesters with decreased terminal carboxyl groups are manufactured by reacting polyesters and cyclic carbonate compounds in the presence of an alkali halide compound catalyst.

Abstract: Method and composition for controlling the deposition of scale imparting precipitates on structural parts of a system exposed to an aqueous medium containing scale imparting precipitates, under scale imparting conditions, are disclosed. Specifically, these precipitates are either calcium carbonate, calcium sulfate, calcium phosphate or mixtures thereof. The method and composition are also efficacious in dispersing inorganic matter, which may exist within a cooling system, boiler system, or the like.

Abstract: A method for the uniform blending of additives into thermoplastic synthetic resins. A solution or finely divided dispersion of the additive is produced in a polymerizable cyclic ester of the general formula: ##STR1## wherein R represents respectively hydrogen or an alkyl group of 1-18 carbon atoms,A represents a --O-- or --COO-- group,x and y represent integers from 1 to 15, andz represents 0 or 1.This solution or dispersion, optionally after polymerization of the cyclic ester, is admixed to the thermoplastic synthetic resin at the end of its manufacturing process or in a subsequent processing stage.

Abstract: A polyphenylene ether resin composition comprising:(i) from about 30 to about 90 weight percent of a graft copolymer free from polyphenylene ether homopolymers prepared by polymerizing 20 to 200 parts by weight of styrene-type compound at a temperature in the range from 130.degree. C. to 200.degree. C. in the presence of 100 parts by weight of polyphenylene ether and 0.1 to 15 parts by weight of a radical initiator and(ii) 10 to 70 weight percent of a styrene-type compound polymer having a number average molecular weight in the range from 50,000 to 200,000; is rendered fire retardant by the addition of an effective amount of a phosphine oxide having the formula ##STR1## wherein R.sub.1 may be the same or different radicals selected from the group consisting of hydrogen and the methyl radical, R.sub.2 is an alkyl radical of 4 to 8 carbon atoms and n is either zero or one.

Abstract: Glass filled thermoplastic polyamide polymers such as nylon 6/6 are rendered fire retardant by the addition of an effective amount of a tris-(3-hydroxyalkyl) phosphine oxide such as tris-(3-methyl-3-hydroxypropyl) phosphine oxide.