Abstract: A composition comprising an admixture of an aromatic polycarbonate and a flame retardant effective amount of a compound of the formula ##STR1## wherein M is an alkali or alkaline earth metal;R is alkyl, halo, nitro, trihalomethyl or cyano;m is an integer of one to about ten;n is an integer of zero, one, two, three or four; andp is an integer of two, three, four, five or six.

Abstract: A composition with increased resistance to environmental stress cracking and crazing comprising a blend of (a) an aromatic carbonate polymer resin and (b) an effective amount of a coupled resin block copolymer of polymerized vinyl aromatic units connected to polymerized diene units.

Abstract: The present invention deals with polymer blends comprising a polyphenylene ether and optionally polystyrene or a rubber modified polystyrene. It has been found that the addition of an alkyl or aralkyl-sulfonate to such blends improves the environmental stress cracking resistance of such blends.

Abstract: Compositions and processes for the aqueous emulsion polymerization of ethylenically unsaturated monomers using mixed emulsifiers containing(a) about 99.5 to about 10 parts by weight of an .alpha.-sulfocarboxylic acid alkyl ester containing from 8 to 24 carbon atoms in the carboxylic acid portion and from 1 to 4 carbon atoms in the alcohol portion, and(b) from about 0.5 to about 90 parts by weight of an .alpha.-sulfocarboxylic acid containing from 8 to 24 carbon atoms, and if desired,other anionic and/or non-anionic emulsifiers and/or protective colloids; the mixed emulsifier optionally being completely or partly present in salt form.

Abstract: A thermosetting latex coating composition is disclosed and comprises a copolymer of monoethylenically unsaturated monomers copolymerized in aqueous emulsion in the presence of an anionic surfactant and about 1% to about 25% of a liquid water-insoluble polyhydric alcohol. The monomers include at least about 80% of nonreactive monomers and from about 0.5% to about 10% of a monomer carrying a reactive group capable of reacting with the hydroxy groups present when the latex is deposited and dried.

Abstract: Additives for rubber compositions, giving vulcanizates having improved retention of optimum physical properties, are compounds containing two or more groups of the formula --S--SO.sub.2 R linked by an organic bridging group, or polymers containing two or more groups of the formula --S--SO.sub.2 R attached to an organic polymer chain, where R represents (a) a radical OM where M is a monovalent metal, the equivalent of a multivalent metal, a monovalent ion derived by the addition of a proton to a nitrogenous base, or the equivalent of a multivalent ion derived by the addition of two or more protons to a nitrogenous base, or (b) an organic radical selected from aliphatic, cycloaliphatic, aromatic and heterocyclic radicals, and radicals which are combinations of any two or more such radicals.

Abstract: This invention provides a radio opaque fibre comprising polypropylene, a coupling agent and 55% to 70% of barium sulphate. The coupling agent is preferably isopropyl triisostearoyl titanate. The fibre finds particular application in manufacture of surgical swabs and dressings.

Abstract: A flame retardant non-opaque polycarbonate composition consisting essentially of, in admixture:(i) at least one halogen-free and sulfur containing aromatic polycarbonate resin derived from(a) at least one halogen-free and sulfur-free non-polycyclic dihydric phenol,(b) from about 4 to about 25 mole percent of at least one halogen-free thiodiphenol, based on the total amount of said halogen-free and sulfur-free non-polycyclic dihydric phenol and said halogen-free thiodiphenol employed, and(c) a carbonate precursor; and(ii) from about 0.001 to about 0.5 parts by weight per hundred parts by weight of said polycarbonate resin of at least one organic metal salt of sulfonic acid selected from the alkali and alkaline earth metal salts of sulfonic acids.

Abstract: The present invention is directed to a composition comprising:(a) a dispersion of a polyurea and/or polyhydrazodicarbonamide in a relatively high molecular weight organic compound containing at least two hydroxyl groups, wherein the concentration of the polyurea and/or polyhydrazodicarbonamide is from 1 to 40% by weight of the dispersion,(b) from 2 to 10% by weight of water based on the weight of component (a), and(c) from 3 to 10% by weight based on the weight of components (a) and (b), of a sulphonate diol corresponding to the formula: ##STR1## wherein A and B may be the same or different and represent a difunctional aliphatic hydrocarbon radical containing from 1 to 6 carbon atoms;R represents hydrogen, an aliphatic hydrocarbon radical containing from 1 to 4 carbon atoms, or a phenyl radical;X.sup..sym. represents an alkali metal cation, or an ammonium group which may be substituted;n and m represent the same or different numbers of from 1 to 30;o and p each represent 0 or 1; andq represents 0, 1 or 2.

Abstract: A process for improving the processability of polycarbonates by contacting a polycarbonate composition with a metal salt of dodecylbenzenesulfonic acid in an amount sufficient to decrease the melt viscosity of the polycarbonate composition while increasing the impact strength.

Abstract: Improved non-opque flame retardant compositions comprised of, in admixture:(i) at least one aromatic polycarbonate resin derived from (a) at least one halogen-free and sulfur-free dihydric phenol, (b) a minor amount of at least one halogen-free thiodiphenol, and (c) a carbonate precursor; and(ii) a minor amount of at least one organic alkali or alkaline earth metal salt of sulfonic acid.

Abstract: A flame retarded black thermally and hydrolytically stabilized copolyester carbonate having reasonable melt stability is achieved with a relatively low surface area carbon black.

Abstract: A process for preparing an aqueous adhesive composition which comprises preparing a solvent dispersion by mixing rubber, carbon black, vulcanizing agent, tackifying resin and accelerator with sufficient organic solvent to form a solvent dispersion and thereafter emulsifying the solvent dispersion in the presence of water to form an aqueous emulsion. The aqueous emulsion may be used to bond unvulcanized rubber compounds, such as a tread stock to the carcass portion during the formation of a tire.

Abstract: The present invention relates to polycarbonate articles and films characterized by their antistatic properties comprising polycarbonate resin and alkali, or alkali earth, salts of specific aromatic sulfonic acids, specific aromatic phosphonic acids or aromatic partial phosphoric acid esters.

Abstract: A composition comprising: (A) a non-Newtonian colloidal disperse system comprising (1) solid metal-containing colloidal particles predispersed in (2) a disperse medium of at least one inert organic liquid and (3) as an essential third component at least one member selected from the class consisting of organic compounds which are substantially soluble in said disperse medium, the molecules of said organic compound being characterized by polar substituents and hydrophobic portions; and (B) an isocyanate-terminated prepolymer.

Abstract: Described herein is a flame retardant molding composition comprising a particular poly(aryl ketone) and a flame retardant additive which is a metal salt of an aromatic sulfonic acid.

Abstract: The compositions of the invention comprise from about 70 to 85 parts by weight of a high molecular weight polycarbonate resin, from about 10 to 30 parts by weight of a copolymer of tetrabromobisphenol-A and bisphenol-A, from about 1 to 5 parts by weight of a multiphase composite interpolymer of an acrylate and a methacrylate, from about 0.5 to 5 parts by weight of a copolymer of an olefin and acrylate and an effective amount of a flame retardant alkali metal salt.

Abstract: A thermoplastic molding material contains 50-90% by weight of a hard component A comprising one or more copolymers of styrene and/or .alpha.-methylstyrene with acrylonitrile, and 50-10% by weight of a graft copolymer B comprising 40-80% by weight of a crosslinked acrylate polymer which has a mean particle size greater than 0.8 .mu.m (d.sub.50 value of the cumulative mass distribution) and onto which 20-60% by weight of a mixture of styrene and acrylonitrile in a weight ratio of from 88:12 to 65:35 is grafted.The novel molding material is used for the production of moldings.

Abstract: The present invention relates to powdered sulfonated thermoplastic polymers which function as viscosification agents when added to oil-based drilling muds which are the fluids used to maintain pressure, cool drill bits and lift cuttings from the holes in the drilling operation for oil and gas wells. The powdered sulfonated thermoplastic polymer has about 5 to about 100 meq. of sulfonate groups per 100 grams of the sulfonated thermoplastic polymer, wherein the sulfonated groups are neutralized with a metallic cation or an amine or ammonium counterion. The powdered sulfonated thermoplastic polymers have a particle size range of 0.25 .mu.m to 2.5 .mu.m and are prepared by spray drying an emulsion of the sulfonated thermoplastic polymer which has been prepared by a free radical copolymerization process.

Abstract: Elastomeric/polymeric matrices, e.g., rigid polyvinyl chloride resins, are reinforced with impact strength enhancing amounts of calcium carbonate filler particulates, said particulates being surface area treated with both an organic sulfonic acid or salt thereof, and a fatty acid or salt thereof. The resultant compositions are well adapted for the fabrication of strong, useful shaped articles therefrom.

Abstract: Described herein are flame retardant molding compositions comprising a blend of a polyarylate derived from a dihydric phenol and an aromatic dicarboxylic acid and a flame retardant additive which is a metal salt of an aromatic sulfonic acid. The composition may additionally contain one or more thermoplastic polymers.

Abstract: The dispersion contains(a) from 30 to 60% by weight of one or more active ingredients having a mean particle size of less than 5.mu.,(b) from 0.1 to 5% by weight of one or more water-soluble homopolymers or copolymers of a N-vinyl-lactam,(c) from 0.1 to 5% by weight of one or more anionic compounds devoid of dispersant character,(d) from 0 to 30% by weight of one or more humectants and(e) water.The active ingredient is sparingly soluble or insoluble in water.The copolymer may be derived from two or more different N-vinyl-lactams or from one or more N-vinyl-lactams and one or more other compounds copolymerizable therewith.The anionic compound or compounds is or are chosen from the group comprising water-soluble alkali metal salts or ammonium salts of aromatic monosulfonic acids, disulfonic acids and trisulfonic acids, which acids may be substituted by alkyl groups of at most 8 carbon atoms or by a cycloalkyl group of at most 6 carbon atoms.

Abstract: An improved process for preparing extruded films from film-forming polymeric compositions based on vinylidene chloride copolymers and containing one or more inorganic particulate additives and to the films so prepared. The improvement comprises first preparing a preblend of the inorganic particulate additives and an alkali metal salt of an alkylaryl sulfonic acid and, then making an admixture of the preblend and the vinylidene chloride copolymers. The admixture so prepared is then formed into an extruded film by conventional techniques.

Abstract: An improved aqueous composition for impregnating multifilament glass strand comprises emulsified polybutadiene homopolymer, butadiene-styrene-vinylpyridine terpolymer, resorcinol-formaldehyde resin, emulsified wax, a thickening agent and a defoaming agent with the homopolymer and the terpolymer emulsified with a synthetic anionic surfactant having sulfate, sulfonate or sulfosuccinate groups.

Abstract: The invention is directed to flame-resistant, transparent aromatic polycarbonate compositions comprising polycarbonate resin and an additive amount of a member selected from the group consisting of aldehyde-bisulphite adducts and ketone-bisulphite adducts.

Abstract: An erodible device is disclosed for delivering an agent to an environment of use. The device comprises (1) a structure sized and adapted for placement in an environment of use, the structure comprising a poly(orthoester) or a poly(orthocarbonate) having a repeating mer consisting of hydrocarbon radical and a symmetrical dioxycarbon unit of the general formula: ##STR1## wherein R.sub.1 is a multivalent hydrocarbon radical, R.sub.2 and R.sub.3 are hydrocarbon radicals with at least one of R.sub.2 or R.sub.3 bonded to the dioxycarbon through an oxygen covalent bond, (2) a beneficial agent, and (3) a surfactant erosion rate modifier. The devices are useful for delivering numerous agents to many environments. A composition also is disclosed comprising a poly(orthoester) or a poly(orthocarbonate), and a surfactant.