Abstract: The invention provides an elastomer composition including an aromatic vinyl-isoprene block copolymer (a) having two or more poly(aromatic vinyl) blocks, in an amount more than 10 wt. % and less than 47.5 wt. %; an aromatic vinyl-isoprene diblock copolymer (b) in an amount more than 47.5 wt. % and less than 85 wt. %; and polyisoprene (c) having a weight average molecular weight of 20,000 to 100,000, in an amount more than 5 wt. % and less than 20 wt. %, wherein the composition has an aromatic vinyl monomer unit content more than 14 wt. % and less than 50 wt. %, based on the total amount of the components (a), (b), and (c). The elastomer composition is suitable for providing the pressure-sensitive adhesive composition, which exhibits excellent initial bond strength, peel strength, and holding power, and, even at relatively low temperature, exhibits minimal drop in initial bond strength and peel strength.

Abstract: Surface impact strength in a molded article of an impact-resistant styrene resin composition, and balance between the surface impact strength and the rigidity is improved. Disclosed is a styrene resin composition comprising a styrene copolymer (A), and a block copolymer (B) comprising a polymer block (b1) of a styrene monomer and a polymer block (b2) of a conjugated diene monomer, wherein the styrene copolymer (A) is a copolymer of a styrene monomer (a), a butyl acrylate (b) and a methyl methacrylate (c), the block copolymer (B) forms a multi-layered structure in which a layer of the polymer block (b1) and a layer of the polymer block (b2) of the diene monomer are alternately laminated, and the styrene resin composition has 9 to 25%, on a weight basis, of structural units derived from the conjugated diene monomer.

Abstract: The present invention is a rubber modified monovinylidene aromatic polymer composition which can be used in conventional thermoforming or other highly orienting forming or shaping processes to produce tough, cost effective, transparent containers or other packaging materials.

Abstract: A sheet excellent in mechanical performance such as folding endurance is provided. A sheet having a substrate layer using an impact-resistant styrene type resin containing 2 to 15 wt % of rubber particles having a peak at less than 2 ?m and an impact-resistant styrene type resin containing 0.2 to 10 wt % of rubber particles having a peak at 2 ?m or more in a distribution of volume-based particle diameters, or a sheet having a substrate layer comprising an impact-resistant styrene type resin (A) containing 10 to 15 wt % of rubber having a volume average particle diameter of from 0.5 ?m to 1.5 ?m and an impact-resistant styrene type resin (B) containing 5 to 10 wt % of rubber having a volume average particle diameter of from 2.0 ?m to 3.0 ?m wherein (A) is from 50 to 95 wt % and (B) is from 5 to 50 wt % on the basis of the total amount of both components, and a surface layer formed on at least its one surface, is provided.

Abstract: The present invention provides a polyolefin-based resin composition, comprising (A) a polyolefin I produced from at least one monomer selected from the group consisting of ?-olefins, cyclic olefins and styrenes; (B) a polyolefin II produced from said at least one monomer, which differs in composition or properties from said polyolefin I; and (C) a graft copolymer produced by bonding said polyolefins I and II to each other through a polyene, wherein (a) a ratio [(1/R1)/(1/R1)0] of a relaxation velocity (1/R1) of a long-term relaxation component measured by a solid 1H-NMR method about the composition to a relaxation velocity (1/R1)0 of a long-term relaxation component measured by a solid 1H-NMR method about a resin mixture of only the components (A) and (B) is 1.01 or higher; and (b) an intrinsic viscosity [?] of the composition is in the range of 0.1 to 10 deciliter/g as measured in decalin at 135° C.

Abstract: A powdery linear polymer having a narrow particle size distribution with little dusting and excellent in anti-blocking property is recovered from a latex of a linear polymer containing a large proportion (35–75 wt. %) of soft polymer (S) component through a two-step coagulation process including a first (moderate coagulation) step causing 70–98 wt. % of the coagulation. The linear polymer in the latex has a multilayer structure comprising a linear polymer (S) having a glass transition temperature below 40° C. and a linear polymer (H) having a higher glass transition temperature disposed in totally at least two layers and containing 35–75 wt. %, as a whole, of the linear polymer (S) with the proviso that the linear polymer (S) cannot be contained in excess of 30 wt. % in an outermost layer of the multilayer structure.

Abstract: The invention provides water-soluble or water-swellable copolymers obtained by free-radical copolymerization of A) acryloyldimethyltaurine and/or acryloyldimethyltaurates, B) if desired, one or more other olefinically unsaturated, optionally crosslinking comonomers containing at least one oxygen, nitrogen, sulfur or phosphorus atom and possessing a molecular weight of less than 500 g/mol, the copolymerization C) taking place in the presence of at least one polymeric additive having a 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 paper processing, laundry detergents, textile processing, petroleum extraction and formulating cosmetics.

Abstract: Functionalized propylene polymer compositions useful as coupling/compatibilizing agents are provided. The compositions are a mixture of two different functionalized propylene polymers. Polypropylene composites containing fillers and/or non-compatible resins and formulated using the mixed functionalized coupling/compatibilizing agents are also provided.

Abstract: In one aspect, the present invention relates to a medical device, such as a medical electrical lead, comprising a biomaterial formed from a polymer comprising urethane groups and saturated linear polyethylene moieties wherein the saturated linear polethylene moieties have greater than 12 carbon atoms per moiety. In another aspect, the present invention relates medical devices comprising a biomaterial formed from segmented polymers or polymers having an elongation of greater than 50%. Exemplified polymers contain compounds of the formula HO—(CH2)n—OH wherein n is greater than 12.

Abstract: A resin molded article is produced by performing extrusion molding of a thermoplastic amorphous resin containing a dispersion phase, and then rolling it. According to a molecular orientation associated with an elongation of the dispersion phase in the rolling direction, it is possible to provide the resin molded article having an increased elastic modulus and a reduced coefficient of linear expansion.

Abstract: Plastics and plastics additives including PNPs having a mean diameter in the range of from 1 to 50 nanometers, the PNPs including as polymerized units at least one multi-ethylenically-unsaturated monomer are provided. Also provided is a method for providing an improved plastic.

Abstract: A wire-protective tube which has a resin composition having 100 parts by weight of a polypropylene, from 10 to 500 parts by weight of a propylene block copolymer having a propylene monomer unit and an ethylene monomer unit in a specific proportion, from 1 to 50 parts by weight of a bromine-based flame retardant, and from 1 to 30 parts by weight of a flame retardant aid.

Abstract: A polybutadiene latex is prepared by a process in which butadiene is polymerized by free radical emulsion polymerization in the presence of initiator and, if required, dispersants and further conventional assistants, the polymerization being carried out in the presence of reactive comonomers in such a way that the heat flow of 43 watt/kg solids content of the polymerization mixture is not exceeded. Owing to the presence of reactive comonomers, the reaction rate at the beginning of the reaction is increased, with the result that an overall flatter heat flow profile is obtained. A preferred reactive comonomer is styrene.

Abstract: The invention relates to an anionically polymerised, impact-resistant polystyrene with a dispersed plasticiser phase, comprising particles with capsule particle morphology and method for production thereof.

Abstract: The present invention is a blend of a monovinylidene aromatic polymer, a rubber modified monovinylidene aromatic polymer, and a monovinyl aromatic-conjugated diene copolymer, which can be used to produce cost effective, transparent packaging materials with a good toughness, which materials can be produced using conventional thermoforming equipment. The blend comprises: a) from 49 to 70 weight percent based on the total weight of the blend, of a monovinylidene aromatic polymer having a weight average molecular weight (Mw) of from 210,000 to 400,000 and a melt flow of less than 12.0 g/10 min.

Abstract: A process is disclosed for improving the environmental stress crack resistance and other desirable properties of impact-resistant, elastomer-modified monovinylaromatic compounds, said process utilizing a combination of polymerization initiators, including perketals and peroxycarbonates.

Abstract: It is an object of the present invention to provide a thermoplastic elastomer composition excellent in softness, permanent compression set (both short- and long-term) and resistance to oil, and controlled in bleed-out of the softening agent. It is another object of the present invention to provide a formed article and composite formed article of the above thermoplastic elastomer composition. The present invention provides a thermoplastic elastomer composition containing (a) 100 parts by weight of at least one hydrogenated block copolymer, (b) 30 to 150 parts by weight of a non-aromatic-based softening agent for rubber and (c) 3 to 100 parts by weight of a thermoplastic resin having a melting point of 70 to 140° C., determined by the DSC analysis, and melt viscosity of 400 to 100,000 cps at 140° C., and formed article and composite formed article thereof.

Abstract: The invention concerns a method for preparing a composition comprising a vinylaromatic polymer enclosing rubber nodules. The invention is characterised in that it includes a step for polymerising at least one vinylaromatic monomer in the presence of rubber, a polymerisation initiator and a stable free radical, said step being such that [FSFR×(SFR)]: [FAMO×(AMO)] range from 0.05 to 1, FFSR and FAMO representing the functionality of the stable free radical and the initiator respectively and (SFR) and (AMO) representing the molar quantities of the stable free radical and the initiator respectively, The final composition is particularly resistant to shock and/or shiny.

Abstract: The thermal stability of a polymer is improved by blending, before melt processing, (1) a polymer selected from (a) olefin polymers, (b) polymers of vinyl-substituted aromatic compounds, (c) polymers of substituted acrylic esters, and (d) graft copolymers comprising a backbone of a propylene polymer material having a substituted acrylic ester graft polymerized thereto, and (2) about 0.1% to about 5% of at least one unsaturated aliphatic compound having a molecular weight of at least 200 and an iodine number of at least 10, e.g., soybean oil.

Abstract: A thermoplastic resin composition comprising: a graft copolymer obtained by polymerizing 10 to 70 parts by weight of a monomer containing 60 to 100% by weight of at least one vinyl monomer selected from the group consisting of a (meth)acrylate ester compound, an aromatic vinyl compound and a vinyl cyanide compound and 0 to 40% by weight of a monomer which is copolymerizable therewith, in the presence of 30 to 90 parts by weight of hollow rubber particles which are rubber obtained by polymerizing a polymerization component comprising a butadiene without using a crosslinking agent and have a porosity of 3 to 90% in the form of a latex, wherein the total amount of the monomer and the rubber particles is 100 parts by weight; and a thermoplastic resin.

Abstract: An emulsion polymerization process for the preparation of polybutadiene grafted with styrene and acrylonitrile monomers in a reaction system is provided. The resultant product has a low end content of unreacted residual monomers, low yellowness index, and improved impact strength. The diene rubber is prepared via a process wherein a chain transfer agent is added on a continuous basis to give a rubber substrate having a low crosslink density. In one embodiment of the invention, the process includes charging the reaction system with a pre-selected diene emulsion with a low crosslink density, adding a first portion of at least one of a styrene monomer and acrylonitrile monomer to the diene emulsion, adding to the reaction system, over a predetermined time, an initiator and a second portion of acrylonitrile and styrene monomer, and polymerizing the catalyzed reaction mixture of diene substrate, styrene and acrylonitrile to form ABS graft polymers.

Abstract: The present invention relates to a process for preparing a heat-resistant thermoplastic resin, especially to a process for preparing a heat-resistant thermoplastic resin having superior heat-stability prepared by mixing a graft ABS polymer and a heat-resistant copolymer. The heat resistant thermoplastic resin prepared by the process of the present invention not only has superior heat-resistant properties, impact resistant properties, and workability, but also has superior heat-stability.

Abstract: A thermoplastic molding composition that contains a plurality of graft rubbers is disclosed. A first graft rubber is a product of emulsion polymerization of a mixture containing styrene and acrylonitrile in the presence of butadiene polymer latex (A) having an average particle diameter (d50) of 80 to 220 nm. An additional graft rubber is a product of emulsion polymerization of a mixture containing styrene and acrylonitrile in the presence of butadiene polymer latex (B) having an average particle diameter (d50) of 350 to 650 nm. The butadiene polymer latex (A) is the product of seed polymerization in which seed is butadiene polymer latex having a median particle diameter of 10 to 100 nm, and the butadiene polymer latex (B) is the product of agglomeration in which butadiene polymer latex (A) is the starting latex.

Abstract: A graft copolymer composition obtained by mixing a graft copolymer (A) containing a rubbery polymer having a glass transition temperature of not higher than 0° C. as a trunk polymer and containing a alkyl ester of methacrylic acid-base polymer as a graft component, and having a mean particle size of at least 0.15 &mgr;m, and a graft copolymer (B) having a means particle size of from 0.03 to 0.13 &mgr;m; and a vinyl chloride-base resin composition containing the above described graft copolymer composition as an impact modifier, with excellent impact strength and suitable for use in the productions of pipes, window frames, joints, fences, doors, switch boxes. etc.

Abstract: A brominated butyl rubber and a polymer based on a conjugated diolefin monomer are grafted by mixing the solid polymer at a temperature greater than 50° C. for a time sufficient to cause grafting. The grafted copolymer is useful especially in tire tread compositions.

Abstract: A rubber-reinforced styrene transparent resin composition contains a styrene copolymer reinforced with a rubber polymer, wherein the monomer composition of an acetone soluble resin component contained in the resin composition contains 5 to 70% by weight of aromatic vinyl monomer (a1), 30 to 95% by weight of unsaturated carboxylic acid alkyl ester monomer (a2), 0 to 50% by weight of vinyl cyanide monomer (a3), and 0 to 50% by weight of another monomer copolymerizable with these monomers, and the acid value of the acetone soluble resin component is 0.01 to 1 mgKOH/g.

Abstract: A molding composition containing a graft polymer is disclosed. The graft is a product of a free-radical emulsion polymerization of resin-forming vinyl monomers in the presence of rubber present in latex form having a glass transition temperature of ≦0° C. using an initiator combination comprising a persulfate compound and a redox initiator system. The process for preparing the graft polymer entails adding the persulfate compound at the beginning of the graft polymerization reaction and a later addition of the redox initiator. The composition that features good gloss and flowability is suitable for the preparation of molded articles.

Abstract: Disclosed is a thermoplastic elastomer composition which comprises (A) a thermoplastic resin containing a polystyrene resin, (B) a rubber-like polymer obtained by partially or completely crosslinking an ethylene-&agr;-olefin copolymer and (C) a compatibilizing agent, the amount of the component (B) being 40-90 parts by weight and the amount of the component (C) being 0.1-40 parts by weight based on 100 parts by weight of the components (A), (B) and (C) in total. According to the present invention, an elastomer composition excellent in abrasion resistance can be provided.

Abstract: A composition comprising an elastomer, a filler, and a comb-like polymer, the comb-like polymer comprising a backbone and a plurality of side chains, the backbone having a length greater than or equal to the entanglement length, the side chains having a length greater than about 33% of the entanglement length, the backbone including at least one side chain per entanglement length, and the comb-like polymer having a Tg of less than −5° C.

Abstract: The present invention discloses a composition of matter consisting of a high impact polystyrene exhibiting improved environmental stress crack resistance. The HIPS material is formed utilizing polybutadiene, polyisoprene, and copolymers thereof with styrene, having a Mooney viscosity exceeding about 35 and a gel content of up to about 28%. The present invention discloses the use of a combination of lubricant additives to obtain a HIPS material with higher ESCR values than either additive alone could provide, and also discloses the optimum level of each additive.

Abstract: A thermoplastic molding composition, comprising (A) from 20 to 99% by weight of at least one graft copolymer, (B) from 1 to 80% by weight of a copolymer of at least one alpha-olefin and from at least one polar comonomer, with the proviso that the monomers used are not vinyl acetate or any vinylaromatic monomer, and (C) from 0 to 80% by weight of a thermoplastic polymer, prepared by polymerizing a monomer mixture, comprising (c1) from 50 to 100% by weight of at least one vinylaromatic monomer and/or of a C1-C8-alkyl (meth)acrylate, and (c2) from 0 to 50% by weight of at least one monofunctional comonomer, and (D) from 0.1 to 20% by weight of a substantially uncrosslinked, low-molecular-weight polyalkyl acrylate.

Abstract: A method for continuously preparing a heat resistant &agr;-methylstyrene-acrylonitrile copolymer by bulk polymerization, comprising the steps of: a) Continuously charging a mixture of monomers including following materials into a continuous polymerization system with two or more stirred-vessel reactors connected in series: i) 60 to 75% (by weight of Yá-methylstyrene; ii) 25 to 40% by weight of acrylonitrile; iii) 5 to 15% by weight of a solvent; and iv) 0.05 to 0.3% by weight of a mixed initiator of an organic peroxide with a multifunctional group and an organic peroxide with a monofunctional group; b) Continuously polymerizing the monomer mixture charged at step a) starting from the first reactor to convert 50 to 70% by weight of total charged monomers into a polymer; and c) transferring reacted liquid containing the polymer from step b) to an evaporator, and then separating the polymer by evaporating unreacted monomers and solvents.

Abstract: The use of a thermoplastic molding composition which is not ABS, comprising, based on the total of the amounts of components A, B, C, and, where appropriate, D, this total being 100% by weight, a: as component A, from 1 to 48% by weight of at least one particulate emulsion polymer which has one or more phases and has a glass transition temperature below 0° C. in at least one phase, and has a median particle size from 50 to 1000 nm, b: as component B, from 1 to 48% by weight of at least one amorphous or semicrystalline polymer, c: as component C, from 51 to 90% by weight of polycarbonates, and d: as component D, from 0 to 47% by weight of conventional addictives and/or fibrous or particulate fillers, or a mixture of these, for producing moldings, or corresponding semifinished products, for the garden sector or animal-keeping sector.

Abstract: The present invention is a rubber modified monovinylidene aromatic polymer comprising: a) a monovinylidene aromatic polymer matrix, b) rubber particles dispersed therein, characterized in that the rubber particles are produced from a diene rubber having I) a high molecular weight component and II) a low molecular weight component; the high molecular weight component having a weight average molecular weight at least two and one half times greater than the weight average molecular weight of the low molecular weight component, wherein both components I and II have a 1,4 cis content of greater than 70 percent and III) the rubber is grafted with monovinylidene aromatic polymer to the extent that there is at least 30 percent monovinylidene aromatic polymer present as grafts on the rubber.

Abstract: Thermoplastic molding compositions, comprising (A) from 20 to 99% by weight of at least one graft copolymer, (B) from 1 to 80% by weight of a copolymer obtained from at least one alpha-olefin and from at least one polar comonomer, with the proviso that the monomers used are not vinyl acetate or any vinylaromatic monomer, and (C) from 0 to 80% by weight of a thermoplastic polymer, obtained by polymerizing a monomer mixture, of (c1) from 50 to 100% by weight of at least one vinylaromatic monomer and/or of a C1-C8-alkyl (meth)acrylate, and (c2) 0 to 50% by weight of at least one monofunctional comonomer, and (D) from 0.5 to 30% by weight of a (co)polymer made from (d1) from 50 to 100% by weight of isobutene and (d2) from 0 to 50% by weight of one or more other monomers, process of preparing same and their uses.

Abstract: Thermoplastic molding compositions are made from A) from 20 to 98% by weight of a particulate graft polymer and a non-elastomeric graft shell B) from 0.5 to 78.5% by weight of a thermoplastic styrene polymer or copolymer C) from 1 to 79% by weight of a second styrene copolymer and D) from 0.5 to 30% by weight of an isobutene polymer.

Abstract: In a process for preparing thermoplastic molding compositions by a) polymerizing, in aqueous emulsion, dienes, C1-C12-alkyl acrylates or mixtures of these, where from 0 to 30% by weight of these monomers may have been replaced by other copolymerizable monomers, and where from 0 to 10 by weight of these monomers may have been replaced by crosslinking monomers, to give a rubber latex with a glass transition temperature below −10° C.

Abstract: A combination of a low flexural modulus and low crystallinity polyolefin and a functionalized polyolefin were found to result in an olefin composition with excellent adhesion to metals and polar polymers (e.g. polyesters, polyamides, etc) especially fibers therefrom. When these two polyolefins were added to a thermoplastic vulcanizate (e.g. used to partially or fully replace the semicrystalline polyolefin of a thermoplastic vulcanizate), the thermoplastic vulcanizate was found to have the necessary adhesion to form fiber reinforced thermoplastic vulcanizate.

Abstract: The invention relates to a thermoplastic composition comprising: a matrix-forming thermoplastic polymer (M), rigid nodules obtained by radical polymerization, and optionally an impact modifier (S). It also relates to a process comprising, in a first stage, forming a homogeneous solution of precursor of the nodules in the thermoplastic (M) in the molten state, in a second stage, introducing the initiator while remaining at a temperature below which the initiator becomes active, and, in a third stage, heating to a temperature sufficient to cause crosslinking of the precursor and to form rigid nodules while kneading the composition, the impact modifier being introduced during the first or the second stage.

Abstract: Mixtures of C2-C10 olefin polymers functionalized with carboxylic acids which are neutralized from 1 to 100% with metallic ions The mixtures comprise (by weight): (1) 100 parts of a heterophasic polyolefin composition comprising crystalline polypropylene and an elastomeric fraction of an ethylene/propylene or superior ethylene/&agr;-olefin copolymer where the ethylene content is less than 40%; and (II) 0-250 parts of an elastomeric polymer selected from: a) ethylene/C3-C10 &agr;-olefin copolymers containing at least 20% of a C3-C10 &agr;-olefin; b) ethylene/methyl acrylate copolymers containing from 15 to 30% of recurrent units of methyl acrylate, and having a MFR ranging from 1 to 10 g/10 min; and c) polyisobutylenes; d) atactic propylene homopolymers and amorphous ethylene/C3-C10 &agr;-olefins copolymers produced with metallocenic catalysts; and e) styrene block copolymers containing butadiene and isoprene as comonomer.

Abstract: Compositions which have substantial weatherability and impact resistance include a substantially uniform blend of an acrylonitrile/styrene/acrylic polymeric material and a component selected from (A) polymeric materials including units derived from ethylene, carbon monoxide and copolymerizable ethylenically unsaturated organic compounds, (B) graft polymer components including ethylene-propylene-non-conjugated diene terpolymers grafted with styrene and acrylonitrile monomers, and mixtures thereof. Methods for making such compositions include forming a substantially uniform physical mixture of such polymeric material and component.

Abstract: Thermoplastic molding materials of A) from 72 to 88.5% by weight of a thermoplastic styrene or &agr;-methylstyrene polymer or copolymer, B) from 10 to 20% by weight of a first graft polymer having an average particle diameter d50 from 400 to 600 nm, having an n-butyl acrylate based rubber-elastic graft core, and a styrene or &agr;-methylstyrene (co)polymer graft shell, C) from 1.5 to 8% by weight of a second graft polymer having a bimodal particle size distribution, the average particle diameter d50 being from 25 to 200 nm and from 350 to 550 nm, having a butadiene or isoprene polymer or copolymer based rubber-elastic graft core, and a styrene or &agr;-methylstyrene (co)polymer graft shell, D) from 0 to 50% by weight of conventional additives, where the graft polymers B) and C) constitute from 11.5 to 25% by weight of components A), B) and C), and components A) to D) amount to 100% by weight.

Abstract: A combination of a low flexural modulus and low crystallinity polyolefin and a functionalized polyolefin were found to result in an olefin composition with excellent adhesion to metals and polar polymers (e.g. polyesters, polyamides, etc) especially fibers therefrom. When these two polyolefins were added to a thermoplastic vulcanizate (e.g. used to partially or fully replace the semicrystalline polyolefin of a thermoplastic vulcanizate), the thermoplastic vulcanizate was found to have the necessary adhesion to form fiber reinforced thermoplastic vulcanizate.

Abstract: Modified SAN resin blend compositions that have good clarity and improved tensile properties compared to unmodified SAN resins are described. The compositions are blends of SAN resins and certain modifiers which are core-shell polymers with (A) a core composed principally of rubbery polymers, such as copolymers of diolefins with vinyl aromatic monomers, such as copolymers of butadiene with styrene, (B) an intermediate stage composed principally of hard polymers, such as polymers or copolymers of vinyl aromatic monomers, and (C) a shell composed principally of vinyl aromatic copolymers that contain hydroxyl functional groups or their equivalents (e.g. styrene/hydroxyalkyl (meth)acrylate copolymers).

Abstract: A thermoplastic resin composition comprises a thermoplastic resin (A) and graft copolymer particles (B) having a hollow rubber portion and graft chain, in which a volumetric proportion of hollow part in the hollow rubber portion of the graft copolymer particles is 1 to 70% by volume. The thermoplastic resin composition contains the thermoplastic resin and the graft copolymer particles in a weight ratio (A)/(B) of 2/98 to 100/1. The hollow part in the graft copolymer particle functions to further improve impact resistance.

Abstract: There is provided a thermoplastic resin composition and interior or exterior parts for vehicle using thereof, which is excellent in flexibility, surface appearance, heat deformation property at heating and has low tackiness at a high temperature. The thermoplastic resin composition comprises 25 to 90 parts by weight of a (meth)acrylic ester copolymer (X), which is prepared by polymerizing 40 to 95% by weight of a (meth)acrylic ester, 0 to 40% by weight of a vinyl cyanide compound, not more than 60% by weight of an aromatic vinyl compound and 0 to 40% by weight of a monomer copolymerizable therewith, and has a glass transition temperature of not more than 20° C. and a gel content of not more than 50% by weight, 5 to 75 parts by weight of a copolymer (Y), which has a glass transition temperature or a melting point not less than 50° C.

Abstract: The present invention relates to a curable composition comprising a thermoplastic polyolefin resin and a curable star-branched rubber, a thermoplastic elastomeric vulcanizate obtainable therefrom by dynamically vulcanizing said curable composition in the presence of a suitable curative and shaped articles comprising said vulcanizate.

Abstract: In a process for preparing thermoplastic molding compositions by

Abstract: Thermoplastic materials containing A) 5 to 80 parts by weight of a thermoplastic co- or terpolymer made from the monomers styrene, &agr;-methylstyrene, methyl methacrylate, acrylonitrile with an average molecular weight ({overscore (M)}w) of 70,000 to 119,000, B) 1 to 30 parts by weight of a thermoplastic copolymer made from 60 to 95% by weight of styrene and/or &agr;-methylstyrene and 40 to 5% by weight of acrylonitrile with an average molecular weight ({overscore (M)}w) of 25,000 to 49,500, C) 0.1 to 10 parts by weight of a thermoplastic co- or terpolymer made from the monomers styrene, &agr;-methylstyrene, methyl methacrylate, acrylonitrile with an average molecular weight ({overscore (M)}w) of 1,500 to 6,000 and D) 0.5 to 50 parts by weight of a particulate rafted rubber with a glass transition temperature ≦10° C. and an average particle diameter (d50) of 0.05 to 0.

Abstract: The present invention is a blend of a monovinylidene aromatic polymer and a rubber modified monovinylidene aromatic polymer, which can be used to produce cost effective, transparent packaging that can be used in food packaging and non-food packaging markets, and can be produced using conventional thermoforming equipment. The blend comprises: a) from 50 to 88 wt. percent based on the total weight of the blend, of a monovinylidene aromatic polymer having a weight average molecular weight (Mw) of from 265,000 to 400,000 and a melt flow of less than 2.5 g/10 min.; and b) from 12 to 50 wt. percent based on the total weight of the blend, of a rubber modified monovinylidene aromatic polymer comprising a monovinylidene aromatic polymer matrix having rubber particles dispersed therein, wherein the rubber particles comprise, based on the total weight of the rubber particles, from 25 to 100 weight percent rubber particles having a capsule morphology and a volume average particle size of from 0.1 to 0.