Abstract: A process for efficiently producing an agglomerate resulting from removal of impurities from a water-base latex of rubbery polymer particles or dry Powder thereof and producing a dispersion having rubbery polymer particles dispersed in an organic solvent, and a process for efficiently producing a resin composition of low impurity content, in which the state of dispersion of rubbery polymer particles is excellent, from the above dispersion. In particular, a rubbery polymer particle agglomerate of low impurity content is obtained by first mixing a water-base latex of rubbery polymer particles with an organic solvent exhibiting partial solubility in water, bringing the resultant mixture into contact with water to thereby form a rubbery polymer particle agglomerate, and thereafter separating the water phase from the agglomerate/water phase mixture.

Abstract: A polyesterified block copolymer represented by the general formula (1), (2) or (3) (for example, polyolefin/polyolefin block copolymer of the following general formula (1)), obtained by an esterification reaction between a terminal maleated polymer and a terminal hydroxylated polymer. Also, a process for producing the same is provided. (1) wherein each of R1 and R2 represents hydrogen or methyl; m is an integer of 10 to 200; n is an integer 10 to 200; k is an integer 5 of to 3000.

Abstract: A method of forming a poly(arylene ether)-containing solid concentrate is described. The method includes blending a poly(arylene ether), a thermosetting resin, and a compatibilizing agent in the presence of a solvent to form a homogeneous solution, and removing the solvent to yield the solid concentrate. The solid concentrate is useful for preparing curable conditions.

Abstract: A continuous process for the production of an elastomer-modified thermoplastic is disclosed. The process entails (i) obtaining graft elastomer (D) having residual moisture content of 1 to 50 wt. %, particularly 5 to 50 wt. %, particularly preferably 10 to 40 wt. %, (ii) introducing (D) and thermoplastic resin (B) through an inlet to a reactor operating under conditions calculated to melt (D) and (B) and to remove organic volatile components C) to produce a molten blend, the reactor being equipped with a plurality of kneading bars, that convey a portion of the molten blend towards the reactor inlet.

Abstract: A polymer blend consisting essentially of at least one thermoplastic polymer, and a polymer comprising structural units derived from a 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine is disclosed.

Abstract: A vulcanizable rubber composition including an unsaturated rubber, core-shell particles, and a vulcanizing agent is described. The core-shell particles include a core with poly(arylene ether) and a shell with an ethylenically unsaturated copolymer. Also described are a vulcanized rubber composition and an article that includes it.

Abstract: A composition comprises poly(arylene ether), a rubber modified poly(alkenyle aromatic) resin, and an unsaturated impact modifier. The composition may further comprise an encapsulated fluoropolymer. The melt strength of the composition, measured as the hang time of an extruded tube, is especially suited for blow molding methods. The composition exhibits good melt strength, surface quality and/or sandability and is particularly useful in blow molding applications.

Abstract: The present invention relates to miscible blends of the polycarbonate of bisphenol A and polyesters from aromatic dicarboxylic acids, 1,4-cyclohexanedimethanol, ethylene glycol, and 2,2?-(sulfonylbis(4,1-phenyleneoxy)-bis(ethanol).

Abstract: Disclosed are polymer compositions comprising: (A) a first component comprising about 1 to 99 percent by weight at least one polyester (A) comprising: (1) diacid residues selected from the group consisting of terephthalic acid residues, isophthalic acid residues and mixtures thereof, and (2) diol residues selected from the group consisting of 1,4 -cyclohexanedimethanol residues, ethylene glycol residues and mixtures thereof; wherein the molar ratio of 1,4-cyclohexanedimethanol to ethylene glycol is less than 0.

Abstract: A method of producing a synthetic polymer blend comprising steps of (i) blending a styrene-butadiene-styrene thermoplastic elastomer (SBS) with a compatibilizer selected from the group consisting of polybutadiene grafted polystyrene resin (HIPS), styrene-hydrogenated-butadiene-styrene (SEBS) and poly-dimethyl-phenylene-oxide (PPO), and dispersing particles of said SBS to a mean particle size of substantially 3 microns or less in diameter, to form an intermediary ingredient, wherein weight ? ? of ? ? the ? ? SBS weight ? ? of ? ? the ? ? compatibilizer is substantially 1 4 to 4; and (ii) blending the intermediary ingredient in the step b) with further ingredient(s) including at least general purpose polystyrene (GPPS), and further dispersing the SBS particles, to form the synthetic polymer blend, wherein weight ? ? of ? ? the ? ? intermediary ? ? ingredient weight ? ? of ? ? the ? ? GPPS is substantially 1 19 ? ? to ? ? 5 6

Abstract: A low gloss thermoplastic composition comprises poly(arylene ether), a rubber-modified poly(alkenyl aromatic) resin and an acrylonitrile containing polymer gel.

Abstract: The object of the present invention is to provide a masking member(11) which has good heat resistance and can be used repeatedly. To attain this object, the present invention provides a masking member made of a polymer alloy having a sea-island structure containing polyolefin in a continuous phase and one or more kind(s) of engineering plastic selected from among a group consisting of methyl pentene copolymer, polysulphone, polyethersulphone, polyphenylenesulphide, polyphenyleneether, polyamideimide, polyetherimide, and polyether-etherketone in a dispersed phase.

Abstract: A modified resorcinol resin is prepared by reacting a phenolic compound (e.g., resorcinol) with an olefinically unsaturated compound (e.g., styrene) and two types of aldehyde: a formaldehyde and an alkyl aldehyde (e.g., butyraldehyde). The reaction is typically carried out in the presence of an acid catalyst. The resulting resin has a lower softening point and can be used as a methylene acceptor compound in a vulcanizable rubber composition.

Abstract: A moldable thermosetting composition comprises a poly(arylene ether), a thermosetting resin, a toughening agent, and an amine cure agent. The compositions may be conveniently prepared without solvents, and the poly(arylene ether) may be provided in the form of an easily dissolved solid concentrate with the thermosetting resin.

Abstract: A poly(arylene ether)-polyolefin composition is prepared by melt-blending a poly(arylene ether) and a compatibilizer to form a first blend, and melt-blending the first blend and a polyolefin to form a second blend. The composition lacks an unhydrogenated block copolymer, a poly(alkenyl aromatic) resin, or both. Multiple mixing elements, low throughput, and high extruder rotations per minute may be used to achieve high energy mixing of the first and second blends. Compositions prepared by the method exhibit an improved balance of impact strength, stiffness, and heat resistance, as well as reduced variability of physical properties.

Abstract: This invention provides a composition and method for improving adhesion between a resinous thermoplastic substrate and polyurethane foam, said composition comprising at least one polyphenylene ether, at least one poly(alkenylaromatic) compound, and at least one carboxylic acid containing copolymer and optionally, further comprising at least one curing catalyst. Another embodiment of the invention provides articles derived from the composition of the present invention.

Abstract: The present invention provides plastics with high toughness and the preparation thereof. The plastics with high toughness, which have the balance of stiffness and toughness, stable properties and good processability, are obtained by blending the rubber particles having an average particle size of 20 to 200 nm with the pseudoductile plastics, wherein the weight ratio of the rubber particles to the plastics is from 0.5:99.5 to 70:30. The present invention also provides plastics with both high stiffness and high toughness and the preparation thereof. The plastics with both high stiffness and high toughness, which have also an improved heat resistance and good processability, are prepared by blending the rubber particles having an average particle size of 20 to 500 nm and the crystalline plastics, wherein the amount of the rubber particles added in the plastics matrix is from 0.3 to 5 weight parts.

Abstract: The invention provides water-soluble or water-swellable copolymers obtained by free-radical copolymerization of A) acryloyldimethyltaurine and/or acryloyldimethyltaurates, B) optionally, one or more other olefinically unsaturated, noncationic, optionally crosslinking comonomers containing at least one oxygen, nitrogen, sulfur or phosphorus atom and possessing a molecular weight of less than 500 g/mol, C) one or more mono- or polyolefinically unsaturated, optically crosslinking macromonomers each possessing at least one oxygen, nitrogen, sulfur or phosphorus atom and having a number-average molecular weight of greater than or equal to 200 g/mol, and D) taking place in the presence of at least one polymeric additive having number-average molecular weight of from 200 g/mol to 109 g/mol. The water-soluble or water-swellable copolymers of the present invention are useful in formulating cosmetics.

Abstract: The present invention is a polyphenylene sulfide resin composition comprising (a) a polyphenylene sulfide resin and (b) an olefin-based resin, and satisfying the following conditions (i) through (v): (i) The mixing ratio of the polyphenylene sulfide resin (a) and the olefin-based resin (b) is such that the amount of the polyphenylene sulfide resin (a) is in a range from 95 to 60 wt %, while the amount of the olefin-based resin (b) is in a range from 5 to 40 wt %, with the total weight of both the ingredients as 100 wt %; (hi) said olefin-based resin (b) comprising two copolymer: (b-1) an epoxy group-containing olefin copolymer and (b-2) an ethylene/(?-olefin copolymer obtained by copolymerizing ethylene and an ?-olefin having 3 to 20 carbon atoms; (iii) as the morphology observed by an electron microscope, said polyphenylene sulfide resin (a) forms a continuous phase, and said olefin-based resin (b) forms a dispersion phase and has a core-shell structure having said ethylene/?-olefin copolymer (b-2) acting as

Abstract: A poly(arylene ether)-polyolefin composition is prepared by melt-blending a poly(arylene ether), a poly(alkenyl aromatic) resin, a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene, and an unhydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene to form a first blend, and melt-blending the first blend and a polyolefin and additional hydrogenated block copolymer to form a second blend. A reinforcing filler and/or an ethylene/alpha-olefin elastomeric copolymer may, optionally, be added during formation of the second blend or in an additional step. Multiple mixing elements, low throughput, and high extruder rotations per minute may be used to achieve high energy mixing of the first and second blends. Compositions prepared by the method exhibit an improved balance of impact strength, stiffness, and heat resistance, as well as reduced variability of physical properties.

Abstract: A conductive thermosetting composition comprises a functionalized poly(arylene ether), and alkenyl aromatic monomer, an acryloyl monomer, and a conductive agent. After curing, the composition exhibits good stiffness, toughness, heat resistance, and conductivity, and it is useful in the fabrication of a variety of conductive components, including the bipolar plates of fuel cells.

Abstract: A thermoplastic composition includes specified amounts of a poly(arylene ether), a homopolymer of an alkenyl aromatic monomer, a polyolefin, a hydrogenated block copolymer, and an unhydrogenated block copolymer, but the composition is substantially free of any rubber-modified poly(alkenyl aromatic) resin. The composition provides high stiffness and high impact strength and is suitable for molding a variety of articles, including automotive underhood components.

Abstract: A thermoplastic molding composition comprises a resin composition having 50 to about 90 weight percent of a polyester, about 8 to about 48 weight percent of a polyetherimide, about 2 to about 25 weight percent of a high rubber graft impact modifier, each based on the total resin composition, and up to about 15 weight percent of a particulate filler. A making the composition comprises pre-melt compounding a polyester, a polyetherimide, and a high rubber graft impact modifier to form a pre-compounded blend, wherein the pre-compounded blend has a Tg of greater than or equal to about 110° C.; and dry-blending a crystallized polyester with the pre-compounded blend to form the molding composition. Such molding compositions are particularly useful in blow-molding container for liquids such as beer.

Abstract: A thermoplastic composition includes a poly(arylene ether), a poly(alkenyl aromatic) resin, a polyolefin, a hydrogenated block copolymer of alkenyl aromatic compound and a conjugated diene having an alkenyl aromatic content of about 40 to about 90 weight percent, and an unhydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene. The composition exhibits excellent stiffness-impact strength balance, low property variability, and long melt hang time.

Abstract: Provided is a thermoplastic resin structure formed of a resin composition that comprises substantially (a) from 5 to 80% by volume of a polyolefin resin and (b) from 20 to 95% by volume of a polyphenylene sulfide resin, which is characterized in that, in morphology therein seen through electronic microscopy, the polyphenylene sulfide resin (b) forms a matrix phase (continuous phase) and the polyolefin resin (a) forms a disperse phase. The thermoplastic resin structure gives plastic containers, tubes and their Attached parts having good barrier properties, strength, durability and workability.

Abstract: High flow polyphenylene ether formulations are obtained with the addition of dendritic polymers. High flow is also obtained with the addition of dendritic polymers to flame retardant polyphenylene ether formulations.

Abstract: The present invention provides a thermosetting composition which is excellent especially in storage stability and solid physical properties and can be used as automotive body sealers or undercoats. The thermosetting composition according to the present invention comprises an acrylic plastisol consisting of a plasticizer having acrylic resin particles having a gradient-type structure in which the monomer unit proportion changes from the core to the shell multistep-wise or continuously and a filler dispersed therein and therewith formulated, as a thermosetting material, a blocked urethane prepolymer or blocked polyisocyanate compound and a latent curing agent therefor.

Abstract: The invention relates to plastic pallets that pass the Underwriters Laboratory UL 2335 protocol for pallets wherein said pallets comprises at least one resin selected from the group consisting of: (a) polyphenylene ether resin and blends containing polyphenylene ether resin, (b) polycarbonate resin and blends containing polycarbonate resin, (c) vinyl aromatic graft copolymer resin; (d) polyetherimide resin and blends containing polyetherimide resin, and (e) thermosetting resins. In a preferred embodiment, the plastic pallet has an open deck design. The invention also relates to a method to make pallets that pass the UL 2335 protocol.

Abstract: A thermoplastic molding composition that features constancy of properties, especially toughness and processability is disclosed. The composition contains a first graft rubber polymer that is a product of emulsion polymerisation of styrene and acrylonitrile in the presence of a butadiene polymer latex (A) with a mean particle diameter d50 of 80 to 220 nm, a second graft rubber polymer obtained by emulsion polymerisation of styrene and acrylonitrile in the presence of a butadiene polymer latex (B) with a mean particle diameter d50 of 340 to 480 nm, and a rubber-free copolymer of styrene and acrylonitrile. Importantly, the butadiene polymer latex (A) is the product of seed polymerization using a seed latex with a mean particle diameter of 10 to 100 nm, and the butadiene polymer latex (B) is the product of seed polymerisation using the butadiene polymer latex (A) as seed latex.

Abstract: A thermoplastic molding composition suitable for producing article having improved surface quality is disclosed. The composition includes A) at least one polymeric resin selected from the group consisting of polycarbonate, polyester carbonate, polyamide, polyalkylene terephthalate and polyoxymethylene, and B) a co-precipitated mixture of graft polymer B.1 the preparation of which entailed redox initiation and graft copolymer B.2 the preparation of which entailed persulfate initiation.

Abstract: A thermoplastic molding compositions having improved stress cracking resistance is disclosed.

Abstract: A resin molding having welding properties, flexibility, and shock impact resistance in a balanced manner. The resin molding has a welded seam, consisting of a resin composition, wherein the resin composition comprises (a) a polyphenylene sulfide resin and (b) an olefin based resin: wherein an amount of the (a) polyphenylene sulfide resin and the (b) olefin based resin is 80 weight % or more of the entire resin composition, and the content of the (b) olefin based resin is 10 to 100 parts by weight relevant to 100 parts by weight of the (a) polyphenylene sulfide resin, and wherein the tensile elongation at break is 20% or more.

Abstract: An object of the present invention is to provide a fuel system part with excellent fuel permeation resistance, and excellent shock impact resistance and heat resistance. A fuel system part consists of a resin composition, wherein the resin composition includes (a) a polyphenylene sulfide resin and (b) an olefin based resin, wherein an amount of the (a) polyphenylene sulfide resin and the (b) olefin based resin is 80 weight % or more of the entire resin composition and the content of the (b) olefin based resin is 10 to 100 parts by weight relevant to 100 parts by weight of the (a) polyphenylene sulfide resin, and wherein the resin composition has a fuel permeability coefficient (Fuel C/ethanol=90/10) of 3.3×10−16 mol·m/m2·s·Pa or less at 40° C.

Abstract: To provide a polyacetal resin material in which an excellent sliding property is given and the appearance, dimensional precision, mechanical properties, etc. of the molded article thereof are improved as well. That is, a branched polyacetal resin composition, comprising 100 parts by weight of a branched polyacetal copolymer (A) having an oxymethylene group as the main repeating unit and having a specific branching unit, and 0.5 to 40 parts by weight of at least one polymer (B) selected from the group consisting of the following polymer (B-1) and (B-2), i.e. polymer (B-1): a graft or block copolymer prepared from an olefin polymer (b-1) and at least one vinyl polymer (b-2); and polymer (B-2): a modified olefin polymer in which an olefin polymer (b-3) is modified with at least one compound selected from the group consisting of an unsaturated carboxylic acid, an unsaturated carboxylic acid anhydride and derivatives thereof and/or 0.1 to 5 parts by weight of a lubricant (C).

Abstract: A method of forming a toughened article from a blend of a thermosetting polymer and a comb copolymer is disclosed, along with the toughened thermoset article produced thereby. Compositions including a thermosetting polymer and a comb copolymer are also disclosed.

Abstract: An impact modifier comprising a rubber-modified resin having a toluene-insoluble matter content of at least 70% by weight obtained by conducting polymerization of a vinyl monomer in the presence of acrylic rubber particles, during which polymer particles are agglomerated to enhance the particle size. The impact modifier provides thermoplastic resin compositions having an excellent impact resistance by the incorporation thereof into various thermoplastic resins.

Abstract: The object of the present invention is to provide a molding thermoplastic resin material giving resin mold whose quality and value are substantially equal to original resin mold even in a case where said resin mold is recycled. To attain said object, olefin group rubber and/or acrylic rubber to which monomer(s) being the same or similar monomer as (to) monomer(s) composing said molding thermoplastic resin material is(are) graft-copolymerized to give said rubbers compatibility with said molding thermoplastic resin material is(are) added in said molding thermoplastic resin material to improve said equal quality recycling property (property that quality and value are substantially equal to original thermoplastic resin mold even in a case where said thermoplastic resin mold is recycled).

Abstract: A resin composition for electrostatic coating, comprising a rubber-reinforced aromatic vinyl resin (A), a polyamide elastomer (B), a modified vinyl polymer (C) containing at least one functional group selected from among carboxyl, epoxy, amino and amido, and an alkali metal salt (D); a formed resin article excellent in electrostatic coatability which is formed from the resin composition; and a formed resin article having electrostatic coating film which is produced by coating the articles electrostatically.

Abstract: The thermoplastic molding compositions proposed comprise A) from 20 to 90% by weight, preferably from 30 to 80% by weight, particularly preferably from 40 to 75% by weight, of a thermoplastic polymer, and B) from 10 to 80% by weight, preferably from 20 to 70% by weight, particularly preferably from 25 to 60% by weight, of a crosslinked rubber having two or more phases, where the polymer A has a viscosity number, measured on a 0.5% strength solution in dimethylformamide at 23° C., of from 50 to 70 ml/g, preferably from 55 to 65 ml/g, and where at least 80% by number, preferably at least 85% by number, particularly preferably at least 90% by number, of the rubber particles B in the dispersion, after the preparation thereof, have a diameter of <0.2 &mgr;m, preferably <0.18 &mgr;m, particularly preferably <0.15 &mgr;m.

Abstract: Provided is an industrially advantageous insulating film obtainable from a resin composition comprising (A) 100 parts by weight of a polyphenylene oxide having a structural unit of the following formula (1): and (B) 0.1 to 60 parts by weight of a copolymer having a functional group reactive with the above-mentioned polyphenylene oxide.

Abstract: A method of forming a toughened article from a blend of a thermoplastic polymer and a comb copolymer is disclosed, along with the toughened article produced thereby. Compositions such as solids blends and melt blends, including a thermoplastic polymer and a comb copolymer, are also disclosed.

Abstract: A thermoplastic molding composition comprises a resin composition having 50 to about 90 weight percent of a polyester, about 8 to about 48 weight percent of a polyetherimide, about 2 to about 25 weight percent of a high rubber graft impact modifier, each based on the total resin composition, and up to about 15 weight percent of a particulate filler. A making the composition comprises pre-melt compounding a polyester, a polyetherimide, and a high rubber graft impact modifier to form a pre-compounded blend, wherein the pre-compounded blend has a Tg of greater than or equal to about 110° C.; and dry-blending a crystallized polyester with the pre-compounded blend to form the molding composition. Such molding compositions are particularly useful in blow-molding container for liquids such as beer.

Abstract: Thermoplastic molding compositions containing graft polymers produced with different initiator systems are disclosed. The compositions are distinguished by a combination of good toughness and reduced opacity. As a result, appreciably smaller quantities of pigment are needed to color the molding composition.

Abstract: A poly(arylene ether)-polyolefin composition is prepared by melt-blending a poly (arylene ether), a poly(alkenyl aromatic) resin, a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene, and an unhydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene to form a first blend, and melt-blending the first blend and a polyolefin to form a second blend. Reinforcing fillers may, optionally, be added during formation of the second blend or in an additional step. Multiple mixing elements, low throughput, and high extruder rotations per minute may be used to achieve high energy mixing of the first and second blends. Compositions prepared by the method exhibit an improved balance of impact strength, stiffness, and heat resistance, as well as reduced variability of physical properties.

Abstract: A resin composite covered piping material is provided having high heat resistance and excellent flame retardation property, anti-corrosion property, chemical resistance, insulation property and sufficiently high adhesion property with steel material and moreover, is highly economical.

Abstract: Thermoplastic molding compositions comprising (A) 5 to 98%-wt., based on components (A) through (E), of at least one elastomeric graft copolymer, (B) 1 to 90%-wt., based on components (A) through (E), of a further copolymer, (C) 1 to 70%-wt., based on components (A) though (D), of an elastomeric block copolymer composed of at least one block CA (hard phase) having copolymerized units of a vinylaromatic monomer, and at least one elastomeric block C(B/A) (soft phase) having copolymerized units of a vinylaromatic monomer, and of a diene, (D) 0 to 300%-wt., based on components (A) through (C), of a polycarbonate, and (E) 0 to 30%-wt., based on components (A) through (E), of conventional additives and processing aids, are useful for producing films, moldings or fibers.

Abstract: Thermosetting polymers and the electrical laminates made therefrom are disclosed. The polymer comprises the cross-linked product of: a) one or more ethylenically unsaturated aromatic monomers, optionally containing a halogenated monomer to impart fire retardation, and b) a vinyl-terminated polybutadiene or butadiene-styrene copolymer containing either a urethane or an ester group. It has been discovered that an unexpected combination of thermal, electrical, and mechanical properties are obtained from the composition recited herein. The composition is ideally suited as a matrix polymer for electrical substrate applications.

Abstract: The present invention is a hydrolytically modified, biodegradable polymer and a method of making a hydrolytically modifiable a biodegradable polymer. In a preferred embodiment, the invention is a method of grafting polar groups onto biodegradable polymers and modified biodegradable polymer compositions produced by the method. The polymer compositions are useful as components in flushable and degradable articles. Water-sensitive polymer blends and method of making those polymer blends are also disclosed.

Abstract: The invention provides a resin composition comprising a polyphenylene ether-based resin and a polyolefin resin, having no interlayer peeling and exhibiting excellent heat resistance and dynamic properties such as impact resistance, rigidity and tensile breaking elongation.

Abstract: The present invention relates to methods to improve the dampening characteristics of compositions and the improved compositions. The compositions made by the method comprises (a) a polymer system selected from the group consisting of immiscible polymer blends, miscible polymer blends, copolymers, thermoplastic polymers and thermosetting polymers, and (b) a block copolymer comprising: (i) at least one block derived from aromatic vinyl units and (ii) at least one block derived from at least isoprene and a vinyl aromatic monomer and optionally butadiene, and having a glass transition temperature of at least 10° C. In a preferred embodiment, the block copolymer comprises at least one block of polystyrene and at least one block derived from isoprene, styrene and butadiene, and the polymer system comprises at least one polyamide resin.