Abstract: Blends of polycarbonate resins with styrene-acrylonitrile types of copolymers are rendered miscible by the presence of a polysulfone-carbonate resin.

Abstract: An ignition resistant carbonate polymer composition comprising a mixture of one or more carbonate polymers, and a high elastic memory polytetrafluoroethylene having a heat shrinkage equal to or greater than 15% with or without one or more organo phosphorous compounds.

Abstract: A thermoplastic resin composition comrpising:(A) from 5 to 50 parts by weight of a graft copolymer obtained by graft polymerizing from 20 to less than 40 parts by weight of monomers comprising from 20 to 80% by weight of an .alpha.-alkyl aromatic vinyl monomer, from 3 to 40% by weight of an aromatic vinyl monomer containing no .alpha.

Abstract: The present invention provides moulding compositions consisting of polyphenylene oxide/polycarbonate block condensates, graft polymers and, where appropriate, co-polymers. These moulding compositions can contain further suitable additives. The present invention also provides a process for preparing the moulding compositions according to the invention.

Abstract: An aromatic carbonate resin comprised of:(i) at least one recurring structural unit represented by the formula ##STR1## (ii) at least one recurring structural unit selected from structural units represented by the formulae ##STR2## wherein R is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals;W is selected from divalent hydrocarbon radicals, --O--, --S--, --S--S--, ##STR3## A is a divalent residue of at least one conjugated alkadiene and has a weight average molecular weight of at least about 600,m is independently selected from integers having a value of from 0 to 4, andb is either zero or one.The carbonate resin contains an amount of (ii) at least effective to improve the impact properties thereof.

Abstract: This invention relates to moldable polycarbonate compositions and in particular to moldable polycarbonates which have ordered, alternating repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl)sulfone (TMBS) and 2,2-bis-(4-hydroxyphenyl)propane (Bisphenol A) dihaloformate, or ordered, alternating repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl) sulfone (TMBS) dihaloformate and a bisphenol compound such as 2,2-bis-(4-hydroxyphenyl)propane (Bisphenol A). Such polycarbonate exhibit improved hydrolytic stability and also excellent processability in molding applications.

Abstract: The present invention relates to thermoplastic moulding materials of (A) thermoplastic polycarbonates mixed with (B) thermoplastic polyalkylene terephthalates and, if appropriate, with (C) elastomeric polymers, which are characterized in that they contain (D) a polycarbonate-polyphenylene oxide block co-condensate.

Abstract: Polyestercarbonate compositions having superior environmental stress crack resistance are obtained by blending with up to about 12 weight percent of a polymer of 4-methyl-1-pentene.

Abstract: A molding composition containing a compatible blend of (i) a polycarbonate having repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl)sulfone (TMBS), optionally a dihydric phenol such as 2,2-bis(4-hydroxyphenyl)propane (Bisphenol A) and a carbonate precursor, and (ii) a vinyl chloride derived polymer.

Abstract: The present invention relates to thermoplastic moulding compositions consisting of polycarbonates, graft polymers and copolymers, which are characterized in that they contain special graft polymers and/or special copolymers, with the result that these moulding compositions possess a very homogeneous rubber distribution and furthermore possess very good toughness and heat stability and substantially improved heat distortion resistance.

Abstract: High molecular weight thermoplastic aromatic carbonate resin exhibiting improved impact properties comprised of the polymerized reaction products of:(i) at least one dihydric phenol;(ii) a carbonate precursor; and(iii) an amount effective to improve the impact properties of said resin of at least one polymer represented by the formula ##STR1## wherein A represents a divalent residue of at least one polymerized and partially hydrogenated conjugated alkadiene monomer and has a weight average molecular weight of at least about 600, and X is independently selected from halogen radicals.

Abstract: Thermoplastic molding composition of a polycarbonate and a linear low density polyethylene wherein a C.sub.4 -C.sub.7 alpha-olefin is the comonomer.

Abstract: A moldable and compatible blend of 5 to 95 weight percent polycarbonate comprising from about 20 weight percent to 100 weight percent of repeating units (I) having the formula ##STR1## and from 0 weight percent to about 80 weight percent of repeating units (II) having the formula ##STR2## in which the repeating units (I) and the repeating units (II) are connected by interbonding units (III) having the formula ##STR3## wherein Y is selected from alkyl groups of 1 to 4 carbon atoms, chlorine or bromine, each Z, independently, has a value of from 0 to 4 inclusive, n has a value of 0 or 1, and R.sub.1 is a divalent saturated or unsaturated aliphatic hydrocarbon radical, O, CO, SO.sub.2, S or a direct bond, with the proviso that when R.sub.1 is SO.sub.2 then repeating unit (II) is not the same as repeating unit (I), and 95 to 5 weight percent of a styrenic polymer.

Abstract: A serving tray suitable for institutional use and characterized by excellent physical and mechanical properties, including impact resistance and resistance to water spotting. The tray comprises a blend of a sulfone, styrene and a polycarbonate.

Abstract: A glass free copolyester-carbonate composition exhibiting improved resistance to mild organic solvents comprising, in admixture:(i) at least one high molecular weight thermoplastic aromatic copolyester-carbonate resin containing from about 25 to about 90 mole percent ester bonds;(ii) at least one amorphous polyester resin containing the reaction products of(a) at least one polyol selected form 1,4-cyclohexanedimethanol or a mixture of 1,4-cyclohexanedimethanol and ethylene glycol, and(b) at least one aromatic dicarboxylic acid or its ester forming reactive derivative selected from isophthalic acid, terephathalic acid, or mixtures thereof; and(iii) at least one polymer selected from(a) an olefin acrylate copolymer,(b) a polyolefin, and(c) an olefin diene terpolymer;components (ii) and (iii) being present in amounts at least effective to impart to said composition a resistance to mild organic solvents greater than that possessed by said copolyester-carbonate resin.

Abstract: A composition comprisinga. a major amount of an aromatic polycarbonate;b. a minor quantity of a polyester selected from polyalkylene terephthalate and polycycloalkylene terephthalate, isophthalate or a mixture of the two acids;c. a minor quantity of an elastomeric acrylate copolymer with a second order transition temperature, Tg, of less than -10.degree. C. and phenoxy resin effective to significantly maintain the impact strength and ductility at break after exposing a stressed part to brake fluid comprising alcohols and ethers.

Abstract: Flame retardant polyetherimide/polycarbonate blend are prepared by incorporating therein a flame retarding modifier therefor selected from the group consisting of brominated polystyrenes and a mixture thereof with an acrylic rubber composite interpolymer.

Abstract: Resinous composition exhibiting improved impact strength consisting essentially of, in physical admixture:(i) a blend containing(a) at least one aromatic carbonate polymer, and(b) at least one amorphous copolyester resin; and(ii) an amount at least effective to improve the impact strength of said blend of at least one olefin diene terpolymer.

Abstract: A resinous composition exhibiting improved thick section impact strength and improved resistance to organic solvents comprising, in physical admixture:(i) a blend containing at least one aromatic carbonate resin and at least one grafted derivative of an ethylene-propylene-diene terpolymer; and(ii) an amount effective to improve the thick section impact strength and resistance to organic solvents of said blend of at least one ethylene-propylene-diene terpolymer.

Abstract: A thermoplastic composition includes compatible blends of a mixed polycarbonate comprising units derived from a first dihydric phenol, which is a bis(hydroxyaryl) sulfone, a second dihydric phenol; and one or more thermoplastic polymers containing hetero groups.

Abstract: Flame retardant blends of an aromatic polycarbonate, preferably a tetraalkylsubstituted aromatic polycarbonate, and a copolymer of an alkenyl aromatic compound and a halogenated alkenyl aromatic compound are described. The ultraviolet light resistance and impact strength of articles molded from such compositions is superior to that of moldings prepared from corresponding blends of the polycarbonate, a polystyrene homopolymer and a conventional low molecular weight halogenated flame retardant agent.

Abstract: The present invention relates to a process for the preparation and/or further processing of polymer blends of thermoplastic, aromatic tetramethylbisphenol F-containing polycarbonates with styrene/acrylonitrile copolymers and/or with styrene/acrylonitrile graft polymers on special rubbers.

Abstract: This invention relates to self-extinguishing thermoplastic moulding compositions of an aromatic polycarbonate containing a co-condensed halogen, a thermoplastic copolymer containing nucleus-alkylated styrene and an ABS as graft copolymer.

Abstract: A thermoplastic compositions comprising an aromatic polycarbonate resin and a copolymer of C.sub.1 -C.sub.18 alkyl acrylate with a hydroxy C.sub.1 -C.sub.18 alkylacrylate is characterized by its improved notched Izod impact strength and critical thickness.

Abstract: Copolyester-carbonate resin containing composition comprising, in physical admixture:(i) at least one aromatic copolyester-carbonate resin;(ii) at least one aromatic polycarbonate resin;(iii) at least one amorphous polyester resin; and(iv) at least one polymer selected from(a) an olefin acrylate copolymer,(b) a polyolefin, and(c) an olefin diene trepolymer.This composition contains amounts of components (ii)-(iv) effective to improve the resistance to mild organic solvents and the impact properties of the copolyester-carbonate resin.

Abstract: Polycarbonate or polyestercarbonate compositions having superior environmental stress crack resistance are obtained by blending with up to about 12 weight percent of a polymer of 4-methyl-1-pentene.

Abstract: The present invention relates to thermoplastic moulding compositions of (A) thermoplastic polycarbonates, mixed with (B) thermoplastic polyalkylene terephthalates and, if appropriate, with (C) elastomeric polymers, which are characterized in that they contain (D) a thermoplastic based on a polyether-imide.

Abstract: Normally glossy thermoplastic compositions of aromatic polycarbonates, alone, or with second resins are surface-altered by adding a small effective amount of a solid terpolymer of ethylene, carbon monoxide and a third monomer, e.g., vinyl acetate.

Abstract: Blends of carbonate polymer, such as a polycarbonate of bisphenol-A, and a rubber-modified copolymer, such as an acrylonitrile/butadiene/styrene (ABS) resin prepared by mass, bulk or mass suspension polymerization techniques, or by agglomerating particles prepared by emulsion polymerization techniques, exhibit good physical properties and a low gloss finish. Such blends are particularly useful in the manufacture of molded parts. Such blends are color stable and exhibit small amounts of yellowing.

Abstract: Moulding compositions of polycarbonate, polyalkylene terephthalate and, optionally, polymer having a glass transition temperature below -20.degree. C. may be processed to form particularly low-distortion mouldings when the polycarbonate consists at least partly of o,o,o',o'-tetramethyl-besphenol-polycarbonate.

Abstract: A thermoplastic composition includes compatible blends of a mixed polycarbonate comprising units derived from a first dihydric phenol, which is a bis(hydroxyaryl) sulfone, a second dihydric phenol; and one or more thermoplastic polymers containing hetero groups.

Abstract: A moldable and compatible blend of 5 to 95 weight percent of an aromatic polyformal comprising from about 20 weight percent to 100 weight percent of repeating units (I) having the formula ##STR1## and from 0 weight percent to about 80 weight percent of repeating units (II) having the formula ##STR2## in which the repeating units (I) and the repeating units (II) are connected by interbonding units (III) having the formula--CH.sub.2 -- (III)wherein Y is selected from alkyl groups of 1 to 4 carbon atoms, chlorine or bromine, each z, independently, has a value of from 0 to 4 inclusive, n has a value of 0 or 1, and R.sub.1 is a divalent saturated or unsaturated aliphatic hydrocarbon radical, O, CO, SO.sub.2, S or a direct bond, with the proviso that when R.sub.1 is SO.sub.2 then repeating unit (II) is not the same as repeating unit (I), and 95 to 5 weight percent of a styrene copolymer or terpolymer and/or vinyl chloride containing polymers.

Abstract: Flame retardant and non dripping copolyester-carbonate compositions comprised of, in admixture:(i) a fluorinated polyolefin; and(ii) at least one halogen-free sulfur-containing copolyester-carbonate resin derived from (a) a carbonate precursor, (b) at least one halogen-free, sulfur-free and non-polycyclic dihydric phenol, (c) at least one halogen-free thiodiphenol, and (d) at least one difunctional carboxylic acid or a reactive derivative thereof.

Abstract: The impact strength of unsubstituted aromatic polycarbonate resins is improved by inclusion of certain gel materials with the resin before molding. The gel additive can be derived from a rubber modified alkenyl aromatic resin, is in the form of rubbery particles comprised of rubber, rubber grafted alkenyl aromatic resin and occluded alkenyl aromatic resin, and is substantially free of all but trace amounts of soluble alkenyl aromatic homopolymer.

Abstract: High molecular weight thermoplastic polyesters and polyester blends having unexpected improved impact strength by incorporating therein linear low density polyethylene and glass fibers.

Abstract: Carbonate polymer compositions comprise a carbonate polymer having dispersed therein a concentrate consisting essentially of a copolymer of an alkenyl-aromatic monomer and an .alpha.,.beta.-olefinically unsaturated nitrile monomer and a powdered or crystalline additive. The concentrates allow for good dispersion of additives in the carbonate polymer, provide for clean and efficient use of additives, and are easily processable. The copolymeric base resin does not deleteriously affect the good physical properties of the carbonate polymer with which it is blended at typical additive let down levels.

Abstract: This invention relates to flame-resistant polymer mixtures of polycarbonate, styrene polymer and/or graft polymer and polyphosphate, which mixtures may contain organic chlorine and bromine compounds and polytetrafluoroethylene used for the production of moulded articles such as electrical housings, electrical insulators, and for moulded automobile parts such as coverings, dashboards and so forth.

Abstract: Thermoplastic molding compositions characterized by their improved impact performance and deformation under load are disclosed comprising a homogeneous, intimate blend of a polycarbonate resin and a nuclear alkylated polycarbonate resin wherein blend dispersed is a polymeric modifier.

Abstract: A new class of polymer blends comprising (I) block copolymers of polyphenylene oxides and sterically-hindered aromatic polycarbonates and (II) vinyl aromatic resins.

Abstract: The present invention relates to mixtures of polycarbonates containing hydrogenated dimeric fatty acid esters as condensed units, and polyolefines and, if appropriate, other high-molecular weight, aromatic thermoplastic polycarbonates.

Abstract: The present invention is directed to cross-linkable, thermoplastically processable, segmented, high molecular weight polycarbonate elastomers, to the process for their preparation and to their use in their cross-linked form.

Abstract: Described herein are molding compositions comprising a blend of (a) a polyarylate derived from a dihydric phenol and an aromatic dicarboxylic acid and (b) an ethylene-alkyl acrylate copolymer and, optionally, at least one thermoplastic polymer. An article molded from these compositions has a good balance of mechanical properties and improved hydrolytic stability.

Abstract: A flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and a minor amount of a mixture of a metal salt of an organic sulfonate or organic carboxylate, and an organic halogenated compound.This invention relates generally to flame retardant polycarbonate compositions and more particularly to flame retardant compositions containing an aromatic carbonate polymer and a minor amount of a mixture of a metal salt of an organic sulfonate or organic carboxylate, and an organic halogenated compound.

Abstract: This invention is concerned with a new class of halobisphenolethylene polycarbonate-vinyl aromatic resin blends. More particularly, the invention is concerned with halobisphenolethylene polycarbonate-vinyl aromatic resin blends which exhibit enhanced physical and/or chemical properties. The halobisphenolethylene polycarbonate-vinyl aromatic resin blends are suitable for the manufacture of filaments, fibers, films, sheets, laminates and articles of manufacture including reinforced articles by conventional manufacturing techniques.

Abstract: Polymer alloys consisting of(a) 20-90% by weight of polyvinyl chloride or copolymers of vinyl chloride with up to 30% by weight of other copolymerizable vinyl compounds, and(b) 10-80% by weight of aromatic polycarbonates.

Abstract: A resin composition having an excellent fire retarding effect is provided which comprises (1) a polycarbonate and (2) as a fire retardant, at least one member of the group consisting of (A) a metal salt of a sulfuric ester of an alcohol, (B) an ether derived from an alkyl alcohol and a phenol and having a metal sulfonate group bonded to the carbon atom of the alkyl group and (C) a polycarbonate having at least one alkali metal sulfonate group bonded to the terminals through alkyl. Addition of a mixture of the component (A) and at least one specified halogen-containing organic compound as the fire retardant to the polycarbonate (1) affords a resin composition having a greater fire retardant effect.

Abstract: An adhesive composition which shows improved stickiness and adhesive property at room temperature and exhibits an excellent adhering ability in a short time is prepared by compounding(a) an acrylonitrile-containing copolymer having carbon-to-carbon double bond(b) a phenol-polysulfide resin(c) a metal oxide, and(d) a polyfunctional electrophilic reactive compound containing at least two electrophilic reactive groups.

Abstract: A transparent moulding composition comprising a bisphenol polycarbonate having a low refractive index due to a content of alkyl substitution and a rubber and/or a resin.