Abstract: Azlactone-functional membranes prepared by solvent phase inversion techniques are disclosed. Adduct membranes prepared by the reaction of azlactone-functional membranes with nucleophilic reagents are also disclosed. Both azlactone-functional copolymers and blends of azlactone-functional homopolymers or copolymers with blending polymers can be used. These azlactone-functional membranes have azlactone functionality throughout all surfaces formed ab initio into any desired shape. Membrane properties can be modified by sacrifice of some azlactone functionality via crosslinking between azlactone moieties or coupling of hydrophilic ligands.

Abstract: A composite is formed wherein particles of a conductive polymer are uniformly distributed within a processable non-conductive polymer. In the method of the invention, an inverted emulsion is formed by dispersing an aqueous solution of oxidant in an organic solvent comprising a host polymer and an oil-soluble surfactant. A monomer whose polymerization yields a conductive polymer which is dissolved in a solvent miscible with the organic solvent of the emulsion is then added dropwise to the emulsion with agitation. The composite is separated from the emulsion and the precipitate is washed and dried.

Abstract: Polyphenylene sulphide-based compositions with high impact strength essentially comprising, by weight, 60 to 99.5 parts of polyphenylene sulphide and 0.5 to 40 parts of a combination C comprising at least one compound Cl chosen form olefinic elastomers comprising epoxy groups and at least one tertiary amine C2. During the preparation of these compositions, the tertiary amine C2 is preferably incorporated in last place with respect to the other constituents.

Abstract: A substantially non-slip, non-abrasive surface which includes a layer of a coating vehicle comprising a polysulfide mixed with a plurality of solid elastomer particles. The particles are preferably at least partially embedded in the coating composition to provide a surface which maintains tractional sufficiency in wet and dry environments such as swimming pools and related areas.

Abstract: A method of achieving a superior dispersion of polymeric sulfur comprises mixing the polymeric sulfur while it is in the rubbery state with a diluent, such as rubber, to obtain a uniform dispersion of the sulfur in the diluent.

Abstract: A polyphenylene sulfide resin composition comprising 100 parts by weight of a polyphenylene sulfide resin and 0.5 to 50 parts by weight of a crosslinked fluorine-containing elastomer, which has improved impact resistance while keeping excellent properties of the polyphenylene sulfide resin.

Abstract: Blends of an aromatic polysulfone (PSF) and aromatic alkyl methacrylates (PAAM) form thermodynamically miscible mixtures. They exhibit only one glass transition over a wide range of compositions and show marked improvement in mechanical and thermal properties compared to binary mixtures of PSF and other methacrylate or styrenic polymers. Furthermore, they possess better processing and workability without unwanted thermal decomposition owing to better flow properties at relatively lower temperatures.

Abstract: There is provided a thermoplastic resin composition, the composition comprising1 to 99% by weight of polyarylenesulfide-type resin (I),99 to 1% by-weight of at least one resin (II) selected from the group consisting of polycarbonate-type polyphenyleneether-type resins, and ABS-type resins, and0.1 to 100 parts by weight, on the basis of 100 parts of the aforesaid resins (I)+(II), of a graft copolymer (III) as compatibilizer having a specific multi-phase structure.The thermoplastic resin composition containing the compatibilizer (III) of the present invention has a feature of each of the blended resins of a polyarylenesulfide-type resin (I) and at least one resin (II) selected from the group consisting of carbonate-type resins, polyphenyleneether-type resins and ABS-type resins, such as good impact and heat resistance, moldability, and appearance of molded articles. The composition is widely used for the manufacture of automobile parts, electrical and electronic components, and industrial parts, and the like.

Abstract: Disclosed are thermoplastic resin compositions having improved heat resistance, e.g., IR soldering and HDT; increased ductility and flowability; and reduced flash. In particular, the thermoplastic resin compositions have at least one high heat amorphous resin, at least one polysulfide; and, optionally, at least one reinforcing filler and/or at least one polyolefin. The high heat amorphous resin is preferably a polyetherimide and the polyolefin is preferably a high crystalline polyethylene. The compositions of the invention are particularly well suited for preparing no flash high heat electrical connectors.

Abstract: A thermoplastic resin composition comprising (a) 50-99% by weight of a polyarylenesulfide resin and (b) 50-1% by weight of a norbornene-type resin as essential components is disclosed. This resin composition possesses excellent stiffness properties and high heat resistance, and exhibits only small anisotropic properties and superior moldability during the molding operation, and is useful for molding various electronic parts, household electric or electronic parts and articles. Those having a Vicut softening point of 200.degree. C. or higher are especially useful for sealing electronic parts or photo-semiconductors.

Abstract: There is provided a plastisol for use in a electrically conductive molded article comprising non-conductive high polymer particles having surfaces coated with an electrically conductive high polymer or non-conductive high polymer particles having surfaces coated with filler of electrically conductive fine particles, and a plastisizer compatible with the said non-conductive high polymer. The plastisol is excellent in fluidity and good in processability. Said plastisol can provide a molded article having excellent electrical conductivity and is suited for, e.g., production of floor materials or sealing materials having low static properties and formation of an electrically conductive path.

Abstract: This invention provides a tetrafluoroethylene (TFE) copolymer resin powder composition capable, upon rotational lining, of generating a corrosion-resistant, nonstick film, which is a thick film on a metal or a like substrate, essentially free of gas bubbles, and excellent in adhesion and peel resistance. The TFE-copolymer resin powder composition comprises granules which comprise particles of a TFE/perfluoro(alkyl vinyl ether) copolymer (PFA), polyphenylene sulfide (PPS) particles having an average particle size of 0.3-50 .mu.m, and a heat resistant filler. This invention also provides a process for manufacturing the TFE copolymer resin powder composition comprising either (1) granulating a mixture of PFA particles, PPS and a heat resistant filler in the presence of water and an organic liquid, or (2) mixing PFA, PPS, and a heat-resistant filler, compression-molding, and pulverizing.

Abstract: The alkylation resins of this invention comprise the alkylation reaction product of (a) at least one substituted or unsubstituted polycyclic aromatic compound and (b) at least one ethylenically unsaturated hydrocarbon monomer having at least two carbon-carbon double bonds that reacts with the polycyclic aromatic compound by alkylation in the presence of an acid catalyst, wherein the ratio of (a) to (b) in the resin is about 1:9 to about 3:1 by weight. The resins have a weight average molecular weight of less than 10,000 measured by size exclusion chromatography, and a Ring & Ball softening point of about 50.degree. to about 250.degree. C. Because of their high softening point and low molecular weight, the resins are useful in a variety of applications such as flow rate modifiers for engineering polymers, tackifiers for adhesives, and flushing agents for inks.

Abstract: The thermoplastic resin composition containing a fluorine-containing elastomer, which is produced by incorporating a base-treated fluorine-containing elastomer into a thermoplastic resin and has a base-treated fluorine-containing elastomer content of 0.1 to 50% by weight, the composition being excellent in impact resistance and heat resistance and useful for producing various products in the fields of aviation, machinery, office machines, electricity and electronics.

Abstract: Blends of an aromatic polysulfone (PSF) and aromatic alkyl methacrylates (PAAM) form thermodynamically miscible mixtures. They exhibit only one glass transition over a wide range of compositions and show marked improvement in mechanical and thermal properties compared to binary mixtures of PSF and other methacrylate or styrenic polymers. Furthermore, they possess better processing and workability without unwanted thermal decomposition owing to better flow properties at relatively lower temperatures.

Abstract: Electrically conductive polymers, especially polypyrroles, are formed with a charged polymeric dopant supplying the necessary counter-ions to stabilise the charged conductive form of the conductive polymer. The physical properties of the conductive polymer can thus be usefully modified in ways different from those achieved by non-polymeric dopants or by forming the conductive polymers in pre-existing bodies of non dopant (i.e. uncharged) polymers.

Abstract: Thermoplastic molding compositions of A) 70 to 99.5% by weight of a thermoplastic aromatic polyether sulfone or mixtures of several thermoplastic polyether sulfones and B) 30 to 0.5% by weight of a hydrogenated nitrile rubber.

Abstract: A composition and method for forming the composition of poly(arylene sulfide) having improved impact strength and crack resistance. The invention involves mixing poly(arylene sulfide) with a polymeric rubber, a metal hydroxide, and a carboxylic anhydride, each in sufficient amounts and in proportions needed to improve impact strength and crack resistance.

Abstract: The morphology of a polymer alloy displaying miscibility over some region of composition and temperature may be varied by thermodynamically altering the miscibility, such as raising the temperature for an LCST system, to phase separate the components then quenching the alloy below the glass transition temperature of the matrix phase. Such phase separated alloys have improved toughness.

Abstract: A composition is provided which comprises a poly(arylene sulfide) polymer, fibrous reinforcement, a polyolefin polymer, and optionally at least one other component selected from hydrotalcites, nucleating agents, organosilanes, pigments, plasticizers and fillers. The invention provides a poly(arylene sulfide) composition which exhibits improved mold release characteristics and/or a reduced tendency to flash during injection molding applications.

Abstract: There is provided a thermoplastic resin composition, the composition comprising1 to 99% by weight of polyarylenesulfide-type resin (I),99 to 1% by weight of at least one resin (II) selected from the group consisting of polycarbonate-type resins, polyphenyleneether-type resins, and ABS-type resins, and0.1 to 100 parts by weight, on the basis of 100 parts by weight of the aforesaid resins (I)+(II), of a graft copolymer (III) as compatibilizer having a specific multi-phase structure.The thermoplastic resin composition containing the compatibilizer (III) of the present invention has a feature of each of the blended resins of a polyarylenesulfide-type resin (I) and at least one resin (II) selected from the group consisting of polycarbonate-type resins, polyphenyleneether-type resins and ABS-type resins, such as good impact and heat resistance, moldability, and appearance of molded articles.

Abstract: The present invention provides a polyphenylene sulfide film which consists essentially of a resin composition containing polyphenylene sulfide as major constituent, in which fine particles with an average particle size of 0.05-3 .mu.m are dispersed, the fine particles having a single particle index of not less than 0.5. The polyphenylene sulfide film of the present invention is excellent in not only the slipping property but also the number of electrical insulation defects are extremely small, so that the film of the present invention is useful for the dielectric film of film capacitor with stable initial characteristics. Further, since the film of the present invention is excellent in the slipping property and surface smoothness, so that it is useful as a base film for magnetic recording media with excellent magnetic conversion characteristics and excellent drop out characteristics.

Abstract: A polyphenylene sulfide/polyphenylene ether composition is provided, which has excellent dimensional stability and impact resistance, as well as good heat resistance, rigidity and surface appearance. The composition also includes certain polyamide resins, hydrogenated conjugated diene/aromatic monovinyl block copolymers, modified polyolefins, compatibilizer agents, and inorganic fillers.

Abstract: A novel process of sequentially mixing polymers comprisinga. mixing together and melt blending impact modifier and semicrystalline polymer to form a preblend, andb. mixing together and melt blending the preblend with amorphous polymer,and polymer compositions produced as a result of the novel process are disclosed.

Abstract: Blends of polyvinyl chloride with E/X/Y terpolymers, in which X is a C.sub.1 -C.sub.10 n-alkyl acrylate and Y is CO or SO.sub.2, the terpolymers having a swelling ratio of no more than 2.14, can be calendered into smooth sheets, which are suitable for use in such applications as instrument panel skins, pond liners, roofing membranes, etc.

Abstract: A surface covering including a blend of a silane-grafted ethylene/vinyl acetate polymer and an ungrafted thermoplastic polymer retains the desirable balance between indentation, tensile strength and elongation of a fully grafted EVA while permitting the reprocessibility of scrap material. Preferably, the silane graft density is one graft per about 100 carbons to one graft per about 5,000 carbons. The preferred EVA has about 18% to about 28% vinyl acetate.

Abstract: A graft polymer wherein an iodine-containing fluororubber has been grafted on an ethylene-.alpha.-olefin copolymer can be obtained by mixing 30 parts by weight of an iodine-containing fluororubber (a vinylidene fluoride-hexafluoropropylene copolymer containing iodine) and 70 parts by weight of an ethylene-propylene copolymer rubber at 180.degree. C. for 30 minutes while applying shear deformation using a Brabender mixer.

Abstract: This invention relates to compositions of polyarylene sulphides (PAS), melamine resins and rubbers. The compositions are distinguished by very great toughness.

Abstract: A method of producing a curable composition containing a prepolymer having a polythioether skeleton, characterized by comprising addition reacting (A) 4,4'-bis(methacryloylthio)-diphenylsulfide having the formula (I): ##STR1## wherein R is a polyvalent organic group composed of an aliphatic or aromatic hydrocarbon and n represents an integer of 2 or more, with the functional group equivalent ratio of the mercapto groups of the component (B) (ii) to the methacryloyl groups of the component (A) being from 0.02 to 1.01, in another vinyl monomer copolymerizable with 4,4'-bis(methacryloylthio)diphenylsulfide having the above formula (I) in the presence of a base catalyst.

Abstract: A uniform mixture of a polytetrafluoroethylene molding powder and an organic filler, which can provide moldings having improved properties without lowering the appearance and mechanical property, is obtained without sticking the filler to the wall of a mixer by mixing the molding powder and the filler in the presence of a silane coupling agent and a polar solvent, or by previously treating the organic filler with the silane coupling agent and mixing the treated filler with the molding powder.

Abstract: Polymer films are formed by electrocodeposition of solutions containing a dispersion of charged particles of a first polymer and charged particles of a second polymer. Microheterogeneous films are obtained having micro-domains of a minor component polymer dispersed in the major component polymer. Processes for preparing dispersions for electrocodeposition are also provided In a first process, two polymers are dissolved in a common solvent and then dispersed as small charged particles in another solvent which is a precipitant for both polymers. In another process, a dispersion of a first polymer is prepared by adding a solution of the first polymer to a dispersant solvent, and then a solution of a second polymer is dispersed in the dispersion of the first polymer. In another process, a solution of the second polymer is added to a dispersion of the first polymer which contains only a single non-solvent for the second polymer.

Abstract: The present invention provides:(1) a polyarylenesulfide resin composition comprising 60 to 99 wt. % of polyarylenesulfide and 40 to 1 wt. % of acrylonitrile-butadiene rubber which has been hydrogenated to the extent that the unsaturation degree is not more than 7 mol % (First Composition);( (2) a polyarylenesulfide resin composition comprising 100 parts by weight of the First Composition and 0.05 to 5 parts by weight of an epoxy resin (Second Composition);(3) a polyarylenesulfide resin composition comprising 100 parts by weight of the First Composition and 5 to 200 parts by weight of a fibrous reinforcing material and/or an inorganic filler (Third Composition); and(4) a polyarylenesulfide resin composition comprising 100 parts by weight of the Second Composition and 5 to 200 parts by weight of a fibrous reinforcing material and/or an inorganic filler (Fourth Composition).

Abstract: An aromatic polysulfone resin composition improved in dispersibility of fluorocarbon polymer comprising 0.3 to 50 parts by weight of a low molecular weight fluorocarbon polymer fluorinated up to its molecular end, having a flow temperature of 350.degree. C. or lower as measured by the following method, and 100 parts by weight of an aromatic polysulfone resin:Flow temperature: A temperature at which melt viscosity reaches 48,000 poises when a molten sample is extruded from a nozzle (1 mm in inner diameter and 10 mm in length) of a capillary rheometer under a load of 100 kg/cm.sup.2 at a temperature elevation speed of 4.degree. C./minute.

Abstract: In the adhesion of metallic materials to polymers, new adhesive agents of nitrogen containing hetrocyclic polymers such as compositions of imidazole-pyrridine, pyrrolidone-pyridine, and imidazole-pyrrolidone solutions have been discovered as useful. These agents also exhibit anti-corrosion effects. Adhesion and/or reduction of anti-corrosion can be accomplished by pre-coating the metal material with at least one of these agents prior to applying the polymer, or by preblending the polymer with at least one of these agents followed by applying the blend to the metal, under suitable conditions.

Abstract: A novel graft copolymer capable of imparting to a polyolefin when blended therewith high tensile modulus and high sag resistance without increasing melt viscosity, and a method of making the same. The graft copolymer is a polyolefin having a relatively high weight-average molecular weight methacrylate polymer grafted thereto. The graft copolymer is formed by dissolving or swelling a non-polar polyolefin in an inert hydrocarbon solvent, heating to dissolve the polyolefin, and while stirring the mixture, adding a methacrylate monomer, together with an initiator to produce a constant, low concentration of radicals, to form a graft copolymer with a high molecular weight polymer chain covalently bonded or grafted to the polyolefin backbone. The graft copolymer can be separated from the solvent, isolated by volatilizing the solvent, for example in a devolatilizing extruder, and extruded into a desired shape such as a sheet, tube or the like. This graft copolymer can be blended with a poolyolefin matrix.

Abstract: A poly(arylene sulfide) resin composition comprised of 100 parts by weight of a resin mixture of (A) 50 to 98% by weight of a heat-treated poly(arylene sulfide) such as heat-treated polyphenylene sulfide and (B) 50 to 2% by weight of a styrene/butadiene/styrene block copolymer elastomer or a modified product thereof, and 0.2 to 10 parts by weight of an aromatic maleimide compound represented by the formula (1): ##STR1## wherein R.sub.1 is a phenylene-containing radical, or the formula (2): ##STR2## wherein R.sub.2 is alkylene and n is 0, 1 or 2. The resin composition has a good impact resistance, elongation and flexibility.

Abstract: A polyarylene sulfide resin composition which yields a molded article having excellent surface appearance and excellent toughness and impact resistance comprises a blend of a polyarylene sulfide resin and a polyolefin resin with a compound having a carbon-carbon double bond and an epoxy group in its molecule. Optionally a radical initiator and a filler can be added to the composition.

Abstract: Improved non-stick coating systems can be applied to untreated smooth substrate with a primer of a first polytetrafluoroethylene having a melt viscosity over 10.sup.10 poises plus a second polytetrafluoroethylene having a melt viscosity in the range of 10.sup.4 to 10.sup.8 poises to give a concentration gradient.

Abstract: A resin composition comprising (A) a thermoplastic resin, (B) a functional compound having one or more bonds or one or more functional groups selected from the group consisting of organic groups having a non-aromatic carbon-carbon multiple bonds, oxirane groups and substituted carboxyl groups and (C) a diamino compound represented by the following general formula:R.sup.I NH--X--NHR.sup.IIwherein R.sup.I and R.sup.II each represents a hydrogen atom or an alkyl group optionally having one or more inactive substituents, and X represents an alkylene group having 7 to 30 carbon atoms and optionally having one or more inactive substituents.

Abstract: Lubricant systems are provided in which a polyolefin or polyolefin/polytetrafluoroethylene blend functions as a lubricant in a polymer matrix material. The resulting polymer composites containing about 1 to 30 weight percent of the novel lubricant or lubricant blend have greatly improved friction and wear properties, including lower coefficients of friction and increased surface wear resistence. The polyolefin does not remain as discrete, identifiable particles after mixing with the polymer matrix, and has an average molecular weight of less than 500,000.

Abstract: A rubber composition comprising, as rubber components, 10-40 % by weight of (1) a styrene-butadiene copolymer rubber obtained by solution polymerization, having a styrene content of less than 20% by weight and a trans-1,4 bond content in butadiene portion, of more than 90% by weight and 60-90% by weight of (2) a diene rubber other than the styrene-butadiene copolymer rubber (1), having a glass transition temperature of -60.degree. C. or below.

Abstract: Adhesives suitable for preparing laminates of polyvinyl chloride or polyvinyl chloride copolymers with wood or metal are prepared from a three component polymer mixture of polyvinyl chloride or its copolymers itself, a direct ethylene copolymer preferably containing units derived from carbon monoxide, and another direct ethylene copolymer containing units derived from a monomer containing glycidyl units. The adhesive is especially useful for preparing PVC/wood laminates which are subject to outdoor weathering.

Abstract: A novel thermoplastic resin composition is here disclosed which comprises (I) 99 to 1% by weight of a polyolefin, (II) 1 to 99% by weight of a polyarylene sulfide, (III) 0.1 to 100 parts by weight, based on 100 parts by weight of the components (I)+(II), of a multi-phase structure thermoplastic resin which is composed of 5 to 95% by weight of an olefin polymer or copolymer and 95 to 5% by weight of a vinyl polymer or copolymer obtained from at least one kind of vinyl monomer, either of both the components being in the state of a dispersion phase having a particle diameter of 0.001 to 10 .mu.m, and (IV) 0 to 150 parts of an inorganic filler based on 100 parts by weight of the components (I)+(II)+(III).Furthermore, a method for preparing the aforesaid composition is also disclosed here.

Abstract: An alkali resistant synthetic fiber and a sheeting obtained therefrom are disclosed, the fiber being comprised of a polymer mixture consisting of (A) from 15 to 80% by weight of polysulphone, (B) from 20 to 85% by weight of polyvinyl chloride having a degree of polymerization of from 800 to 2,500, and (C) up to 65% by weight of other vinyl polymer, each based on the total weight of the components (A), (B), and (C). The sheeting is excellent in alkali resistant in high temperatures and liquid retention and is therefore useful as industrial filters, battery separators, and industrial wipers.

Abstract: A composition obtained by adding at least one specific elastomer and optionally a polyamide resin or a bromine-containing flame retardant to a melt-kneaded product of a polyphenylene sulfide with a non-blocked type polyfunctional isocyanate compound. The composition is excellent not only in impact resistance but also in aging resistance at high temperatures. Said composition can be advantageously used for molding parts of automobile engines, parts for various machines, connectors for electric or electronic parts, bobbines and the like.

Abstract: Disclosed is a composition comprising(A) from 99.9 to 60 weight percent, based on the weight of the composition, of a copoly(arylene sulfide) and(B) from 0.1 to 40 weight percent, based on the weight of the composition, of an ethylene-propylene rubber.

Abstract: A composition suitable for encapsulating articles such as small electronic devices and having improved tensile strength and other mechanical properties. The composition comprises a poly(phenylene sulfide) base resin, a non-reinforcing mineral filler and an ethylene/methacrylic acid copolymer. Also provided are a method of forming the composition and articles such as electronic components encapsulated with the composition.

Abstract: As N-substituted maleimide polymer composition contains 20 to 90 parts by weight of an N-substituted maleimide polymer and 80 to 10 parts by weight of a thermoplastic resin selected from a polycarbonate polymer, a polysulfone polymer, a polyphenylene ether polymer, a polyarylene sulfide polymer, and a modified polymer of the polymer or polymers, a polyoxymethylene polymer, a polyester polymer, a polyamide polymer and mixtures thereof.

Abstract: A resin material for inserting a lead frame comprises:(A) 100 parts by weight of a polyarylene sulfide resin,(B) 0.1 to 30 parts by weight of an .alpha.-olefin copolymer graft-copolymerized with an unsaturated carboxylic acid or its anhydride, and(C) 10 to 300 parts by weight of a fibrous filler, a nonfibrous inorganic filler or a mixture thereof.The grafted unsaturated carboxylic acid such as maleic anhydride is essential, in comparison with olefin copolymers, preferably in an amount of 1 to 5 percent. The olefin copolymer includes that of ethylene and ethyl acrylate. The addition of (B) effectively works to improve adhesion between the lead frame and the polyarylene sulfide composition, because it does not decompose and give a gas during molding. Heat resistance and the molding performance does not change. An example comprises PPS, a copolymer of ethylene and ethyl acrylate, grafted with 3.0% of maleic anhydride, glass fiber and glass beads.

Abstract: A sliding material composition comprising (a) 100 parts by weight of polyphenylene sulfide and (b) 5 to 100 parts by weight of a resin mixture of 10 to 90% by weight of a melt processable fluorine-containing resin and 90 to 10% by weight of polytetrafluoroethylene, which has good abrasion resistance and lubricating properties without the deterioration of impact strength.