Abstract: The present invention relates to a toughened transparent thermoplastic composite of a transparent thermoplastic and a block copolymer having a block of a random copolymer and an elastomeric block. One preferred embodiment is a polycarbonate that is modified with a block copolymer having a methyl methacrylate (MMA) and naphthyl methacrylate or a substituted naphthyl methacrylate block and an elastomeric block. This block copolymer has excellent miscibility with polycarbonate resin, even at elevated temperature, producing transparent polycarbonate blends. The blend can provide a toughened strength polycarbonate while maintaining its excellent optical properties.

Abstract: The invention provides a method for preparing a material which includes an ionomer blend composition containing a polysilsesquioxane, has a good inorganic filler dispersibility and a good moldability (mold releasability), and has an excellent scuff resistance and coefficient of restitution. The invention also provides a golf ball made using such a material. The ionomer blend composition is an ionomer-based material wherein the polysilsesquioxane and the ionomer are at least partly chemically bonded therebetween, and which has excellent properties such as coefficient of restitution and scuff resistance.

Abstract: An object of the invention is to provide a composition for forming an insulating film which can form an insulating film having a lowered dielectric constant using a hole forming agent, wherein the generation of spaces (voids) in which holes are connected to one another is prevented. The above problem is solved by forming an insulating film using a composition for forming an insulating film, characterized by comprising: (A) a polyphenylene, (B) a styrene polymer, and (C) a block copolymer or a graft copolymer comprising a unit having an affinity to said polyphenylene (A) and a unit having an affinity to said styrene polymer (B).

Abstract: A block polymer compound containing block segments, characterized in that at least one hydrophilic segment among the block segments is a copolymer segment composed of an ionic or hydrophilic repeating unit structure and a hydrophobic repeating unit structure.

Abstract: The instant invention pertains to the preparation of polymers or copolymers wherein in a first step a controlled free radical polymerization process is carried out and in a second step the resulting polymer is modified by transesterification reactions. The final modified polymer or copolymer is useful as a dispersant for pigments. Further aspects of the invention are the thus prepared polymers or copolymers, a pigment concentrate containing the polymer or copolymer and a coating material containing the pigment concentrate.

Abstract: A method for preparing a thermoplastic resin is disclosed, which includes consecutively polymerizing a mixed raw material comprising a (meth)acrylic acid alkyl ester, an aromatic vinyl monomer and a unsaturated nitrile monomer in a plurality of serially connected reactors while controlling polymerization conversion in each reactor to be about 40% or less. The invention also relates to a transparent ABS resin composition which employs the thermoplastic resin as a matrix resin.

Abstract: An impact-resistant vinyl aromatic hydrocarbon resin, the hydrocarbon resin being produced by radical polymerization of 75 to 98 parts by mass of a vinyl aromatic hydrocarbon monomer (A-1) or a mixture of a vinyl aromatic hydrocarbon monomer and a monomer copolymerizable therewith (A-2) and 2 to 25 parts by mass of a modified block copolymer (B), wherein the component (B) comprises a base block copolymer (B-1) comprising conjugated diene monomer units and vinyl aromatic hydrocarbon monomer units and containing at least one polymer block of vinyl aromatic hydrocarbon monomer units (H), and a modifier group bonded thereto (B-2); and the component (B) has the following characteristics: (i) the content of the vinyl aromatic hydrocarbon monomer units is 12 to 50 mass %; (ii) the content of the polymer block (H) is 12 to 45 mass %; and (iii) the polymer block ratio (the mass % of the polymer block (H) based on the total mass of vinyl aromatic hydrocarbon monomer units contained in (B)) is more than 50 mass %.

Abstract: The present invention is directed towards a polymerization process for the preparation of block copolymers. In an embodiment, the polymerization process may comprise low levels of catalyst in an oxidized state that react with a reducing agent to form an active catalyst. Embodiments of the process surprisingly use low levels of catalysts and allow formation of the all blocks with the same catalyst. The catalyst may be deactivated and reactivated to form each block. In one embodiment of the invention, the catalyst is oxidized to the deactivator state when the desired degree of polymerization of a polymer segment or block is reached. The first monomer may be removed prior to addition of the second monomer. The catalyst may then be reactivated for preparation of a second block.

Abstract: A method of producing an acrylic block copolymer comprising hydrophobic poly (lower alkyl methoacrylate), hydrophilic poly (lower alkyl methacrylic acid), and hydrophobic poly (lower alkyl methacrylate).

Abstract: A multi-layer nano-particle composition including a polymer core and at least two additional layers is provided. The nano-particles have a mean average diameter less than about 100 nm. The nano-particles can be modified via, for example, hydrogenation or functionalization. The nano-particles can be advantageously incorporated into rubbers, elastomers, and thermoplastics.

Abstract: This invention provides a nanodisk, which can be formed of a wide variety of materials and has a high level of application, and a method for manufacturing the same. The nanodisk comprises fundamental units formed of two-molecule block copolymers arranged in series in a main chain direction, the fundamental units having been aggregated in a plane direction. The nanodisk has a thickness of 1 nm to 100 nm, a diameter of 10 nm to 5 ?m, and an aspect ratio of not less than 1. Since the thickness of the nanodisk is not more than 100 nm, the nanodisk is transparent to light in a visible region. Further, when a metal element is held on the crosslinked structure part, the nanodisk can be utilized as a nanodisk having magnetic properties and electroconductive properties, or a nanodisk having catalytic activity and a high refractive index. Thus, the nanodisk can be applied to a wide variety of fields such as fine particle/powder technology, colloid surface science, electronic materials, and optical materials.

Abstract: A thermoplastic resin composition that has high chemical resistance, excellent appearance of a molded product thereof, and, as a surface layer material, good adhesion to a base material resin, particularly a PS resin or its waste resin, and that can provide a composite molded product having excellent processibility (for example, chipping resistance) and high durability (for example, heat-cycle resistance), and a composite molded product including the thermoplastic resin composition as a surface layer material.

Abstract: The invention relates to an impact-resistant transparent composition comprising a copolymer having repeat units resulting from the polymerization of acrylonitrile and of at least one vinylaromatic monomer, a particulate block copolymer and a core-shell copolymer.

Abstract: The present invention relates to a method for the preparation of a transparent moulding comprising a blend of a thermoset polymeric material forming the matrix of said article, and a thermoplastic polymeric material, dispersed within said thermoset polymeric material, said process comprising at least the following stages: i) preparation of a liquid polymerizable mixture by dissolving said thermoplastic polymeric material in a thermosetting composition that is a precursor of said matrix, ii) filling of a mould with the liquid polymerizable mixture prepared in stage i), iii) polymerization of the liquid polymerizable mixture until a hardened blend of polymers is obtained, and iv) removal of the moulding formed by said blend of polymers, said process being characterized by the fact that the thermosetting composition comprises at least 60% by weight of 4,4?-di(ethoxyethyl)-bisphenol A dimethacrylate and at least 12% by weight of at least one monofunctional or multifunctional acrylic comonomer and by the fact

Abstract: Zwitterionic block copolymers having oppositely charged or chargeable terminal groups, and methods of making and using the same, are disclosed. The zwitterionic block copolymers can undergo microphase separation.

Abstract: High refractive index copolymers suitable for use in ophthalmic devices are disclosed. The copolymers comprise two or more aryl hydrophobic monomers and a non-polymerizable propylene oxide-ethylene oxide-propylene oxide block copolymer surfactant having a molecular weight of approximately 3600 and approximately 40% ethylene oxide units by weight. The copolymers have a reduced tendency to form glistenings when stored in water at physiological temperatures compared to similar copolymers lacking the non-polymerizable surfactant.

Abstract: An in-mold coating molded article is obtained by coating the surface of a resin molded product comprising a hydroxyl group-containing polypropylene resin composition (A) with a paint composition for in-mold coating, wherein the composition (A) comprises a polypropylene resin (i), an additive rubber (ii) and optionally a polymer compound (iii) other than the polypropylene resin (i) and the additive rubber (ii), the total hydroxyl value of the polypropylene resin (i), the additive rubber (ii) and the optional polymer compound (iii) is from 1 to 40, the composition (A) has a rubber component content (total of the amount of the additive rubber (ii) and the amount of components soluble in n-decane at 23° C.

Abstract: A polymer latex suitable for use in gypsum wallboard or other applications. The polymer latex is a styrene butadiene latex that is substantially stable against divalent ions. The polymer latex includes styrene, butadiene, and an ionic monomer comprised of a 2-acrylamido-2-methyl propanesulfonic acid salt. The polymer latex may also include hydrophilic adjunct comonomers. The latex includes at least 0.25 wt. % of the ionic monomer.

Abstract: Pressure-sensitive adhesive comprising an acrylate block copolymer having at least two chemically distinguishable, covalently interlinked acrylate polymer blocks P in microphase-separated regions and each having a softening temperature of between ?125 and +20° C.

Abstract: Production of polymer blends using amphiphilic block copolymers which comprise poly-isobutene blocks and also polyoxyalkylene blocks, as compatibilizers.

Abstract: The invention provides an acrylate-based pressure-sensitive adhesive comprising a polymer blend having (a) at least a first component Kc which comprises a first acrylate block copolymer having at least two chemically distinguishable, covalently interlinked acrylate polymer blocks P, the at least two polymer blocks P independently of one another each being a homopolymer block of a first monomer or a copolymer block of a second monomer and a comonomer, and the first monomer of the homopolymer block and the second monomer of the copolymer block can be identical or different from one another, and the at least two polymer blocks P being present under application conditions in microphase-separated regions and each having a softening temperature of between ?125 and +20° C.

Abstract: Disclosed is a dispersant having a multifunctional head, and a phosphor paste composition comprising the dispersant. The dispersant has a multifunctional head that comprises an acidic group, a basic group and an aromatic group, thereby enhancing an affinity for the surface of phosphor particles and improving dispersibility.

Abstract: This invention concerns a thermosetting resin system that is useful in the manufacture of high performance prepreg, laminate and composite materials as well as the prepregs, laminates and composites made from the thermosetting resin composition.

Abstract: The invention provides heat-curable thixotropic mixtures containing carbamate and/or allophanate groups, including at least one oligomer and/or polymer containing at least one of carbamate and allophanate groups, and at least one thixotropic agent that is a urea derivative preparable by reacting at least one amine and/or water with at least one isocyanate in the presence of at least one amino resin. The invention further provides processes for preparing the mixtures and coating materials, adhesives and sealing compounds prepared from the mixtures.

Abstract: The instant invention relates to epoxy resin compositions comprising an epoxy resin, a block copolymer having at least one block predominantly composed of methyl methacrylate units or a core shell component and a hardener of the polyoxyalkyleneamine type. The epoxy materials cured from these compositions have high impact resistance.

Abstract: Graft copolymers with segmented (or block) arms and a process for preparing the same. Such polymers are particularly useful in formulating air-dry clear coat and color coat lacquers used in automotive refinishing.

Abstract: Microstructured articles such as brightness enhancing film and turning films having a (e.g. brightness enhancing) polymerized structure comprising the reaction product an organic phase and at least 10 wt-% inorganic nanoparticles. The reaction product of the organic phase has a glass transition temperature of less than 35° C.

Abstract: A process for preparing crosslinkable oligomers comprising reacting at least one monomer having the structure: VHC?CHX, wherein more than 60% of such monomer or monomers has at least one crosslinkable functional moiety, and at least one monomer having the structure: WHC?CYZ at certain molar ratios and reaction conditions, in which V, X, W, and Z are predefined in the text. Curable coatings, sealants, and adhesives utilizing such crosslinkable oligomers and block, branched, star and comb-like graft crosslinkable copolymers derived from such crosslinkable oligomers are also disclosed.

Abstract: The invention relates to the use of block copolymers, obtained by controlled radical polymerization in the presence of alkoxyamine derivatives of substituted nitroxides, for the production of perfectly transparent acrylic films with the mechanical properties required for the applications envisaged, whereby the transparency thereof remains under mechanical stress and a wide temperature range. The total thickness is between 40 and 300 microns, preferably 70 to 90 microns. The film has a haze of less than 2 and elongation at breakage of more than 90%.

Abstract: A composition comprising: (1) from 50 to 99 wt % of a modified, random copolyetherester containing: (i) a modified, random polybutylene terephthalate copolymer block that is derived from a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers and combinations thereof; and that contains at least one residue derived from the polyethylene terephthalate component; and (ii) a polyalkylene oxide copolymer block that is derived from a polyethylene terephthalate component and polyalkylene oxide glycol, and contains polyalkylene oxide and at least one residue derived from the polyethylene terephthalate component; and (2) from 1 to 50 wt % of a polyester; wherein the copolyetherester, the polyester, and optionally any additives, are present in a total amount of 100 wt %.

Abstract: Disclosed is a styrene copolymer composition having: (I) a styrene/n-butyl acrylate copolymer having styrene monomer units and n-butyl acrylate monomer units in a ratio from 80/20 to 89/11, and (II) a block copolymer having a block configuration having (A) at least two polymer blocks each having mainly vinyl aromatic hydrocarbon monomer units and (B) at least one vinyl aromatic hydrocarbon/conjugated diene copolymer block, wherein the block copolymer (II) has vinyl aromatic hydrocarbon monomer units and conjugated diene monomer units in a ratio from 65/35 to 90/10 or from 75/25 to 85/15, and wherein the polymer blocks (A) in the block copolymer (II) have a maximum weight polymer block and a minimum weight polymer block, the weight ratio of the maximum weight polymer block to the minimum weight polymer block being in the range from 1.2 to 4.5 or from 1.0 to less than 1.2.

Abstract: The present invention provides a novel acrylic block copolymer rich in flexibility and excellent in mechanical strength, moldability, oil resistance, heat resistance, thermal decomposition resistance, weather resistance, and compression set, and further rich in reactivity. The present invention also provides compositions, seal products, and automobile, electric, and electronic parts, all of which include the acrylic block copolymer. The acrylic block copolymer includes a methacrylic polymer block (a) and an acrylic polymer block (b), at least one of the polymer blocks containing, in its main chain, at least one acid anhydride group (c) represented by formula (1): (wherein R1s each represent hydrogen or a methyl group and may be the same or different, n represents an integer of 0 to 3, and m represents an integer of 0 or 1).

Abstract: The present invention provides an isocyanate composition including an adduct of a multifunctional isocyanate compound having two or more isocyanate groups in the molecule thereof with a polymer obtained by radically polymerizing in the presence of a chain transfer agent having active hydrogen at least a vinyl monomer including a polymerizable compound having a polyether represented by the following Formula (I): A1-(L-O)n-B1 ??Formula (I) wherein A1 represents a group having an ethylenically unsaturated double bond; L represents an alkylene group; B1 represents an alkyl group or an aryl group; and n is an average polymerization degree of the polyether and represents a number of 8 to 300.

Abstract: A clear and ductile thermoplastic molding composition containing (i) a styrene copolymer and (ii) a rubber component is disclosed. The styrene copolymer is represented by styrene-acrylonitrile copolymer and the rubber component is a styrene-butadiene-styrene (SBS) block copolymer. Characterized by its low haze, high light transmission, good processability and mechanical properties the composition is suitable for making a variety of useful articles.

Abstract: These compositions based on semi-crystalline thermoplastic resin and on ABC block copolymers result in materials or in items which exhibit an impact strength, an elongation at break, a resistance to cracking and to deformation under stress, and a thermal behavior which are improved with respect to semi-crystalline resin or resins alone or mixed with conventional impact additives, while retaining a high modulus and thus a degree of stiffness. They are generally suitable for the preparation of items or articles, such as sheets, films, pipe sheathings, tubings, pipes, yarns, strands, cable sheathings, bracing wires, leaktight sheathings, sleeve tubes, both mono- and multilayer, shaped components, molded panels, thermoformed articles, sections, bottles or powders for coating substrates. The materials or items obtained from these compositions exhibit a characteristic morphology visible in electron microscopy.

Abstract: This invention concerns a thermosetting resin system that is useful in the manufacture of high performance prepreg, laminate and composite materials as well as the prepregs, laminates and composites made from the thermosetting resin composition.

Abstract: An electrical insulating material for use in electrical insulators, for example, for insulated electric wires such as internal wiring of electronic equipment, automobiles or the like, electrical insulating covers produced from the electrical insulating material and a method of electrical insulation using the material are provided. More particularly, it relates to an electrical insulating material which is excellent in mechanical properties and durability, an electrical insulating cover produced from the material and a method of electrical insulation using the material.

Abstract: A thermosetting resin composition comprising: (1) a copolymer resin comprising (a) a monomer unit and (b) a monomer unit respectively represented by the following general formulae (I) and (II): wherein R1 represents hydrogen, a halogen, or a C1–C5 hydrocarbon group; R2 represents a halogen or a C1–C5 hydrocarbon group; x is 0 to 3; and each of m and n is a natural number; and (2) a cyanate resin having at least two cyanate groups per molecule; is used to provide a printed wiring board material and a printed wiring board for electronic appliances, having a low dielectric constant and a low dielectric dissipation factor as well as improved heat resistance.

Abstract: The invention provides an aqueous dispersion which includes i) an aqueous dispersion (I) resulting from dispersion of a block copolymer (I) composed of at least one polymer block (A) containing olefin monomer units and at least one polymer block (B) containing 2 to 100 mole percent of units derived from at least one vinyl monomer having a carboxyl or carboxylic anhydride group and 98 to 0 (zero) mole percent of units derived from another vinyl monomer or monomers copolymerizable with the carboxyl group- or carboxylic anhydride group-containing vinyl monomer, in an aqueous solution of not less than 0.05 equivalent, relative to the carboxyl or carboxylic anhydride group, of a basic substance, and ii) a polyurethane (II), iii) vinyl polymer (III) or iv) tackifier (IV) incorporated in the aqueous dispersion (I).

Abstract: Biopolymers and biopolymer blends, including block copolymers, prepared via enzyme-mediated catalysis preferably in a microorganism host in which the reaction conditions are selected to produce biopolymers and biopolymer blends having particular chemical compositions and microstructures.

Abstract: The present invention is directed to a method for producing a copolymer and a copolymer product of the method. The copolymer is prepared by a controlled radical polymerization process, typically an atom transfer radical polymerization process, in which polymerizable alkene monomers are polymerized in the presence of a halogenated polyolefin macroinitiator. The copolymer product of this process is useful in a film-forming composition that adheres strongly to polyolefinic substrates and to which non-polyolefinic film-forming compositions strongly adhere. The copolymer can be applied to a substrate in an adhesion-promoting layer or can be incorporated into a film-forming composition, such as a primer, that contains additional resinous compounds.

Abstract: A composition, comprising, in an appropriate medium, at least one polymer with a highly specific ordered structure is disclosed. These compositions find a specific application in the field of make-up and are capable of being applied to keratinous fibers, in particular to the nails, eyelashes, eyebrows and hair. In particular, these compositions can make it possible to obtain a film which exhibits good resistance to chipping, to impacts, to rubbing movements, to scratches and/or to pressing actions.

Abstract: The present invention relates to a method for agglomerating finely divided rubber latices by adding an aqueous solution of a water-soluble amphiphilic copolymer that contains at least one hydrophilic portion and at least one hydrophobic portion.

Abstract: The invention relates to a formulation comprising an ionic compound and a polyionic polymer. The invention more specifically relates to an improved formulation thereof, further comprising a copolymer. The improved formulation avoids phase-separation of colloidal particles comprising the ionic compound and the polyionic polymer. The formulation comprises a copolymer comprising two moieties A and B, wherein moiety A is polyionic in the pH conditions of the formulation, and moiety B is neutral in the pH conditions of the formulation.

Abstract: The present invention is directed to a curable, water-based coating composition utilized in waterborne coating systems such as a waterborne primer system. The coating composition is the reaction product of a water-dispersible cross-linking agent and a water-based copolymer prepared by free-radical polymerization. The copolymer is the reaction product of a first block and a second block. The first block is the reaction product of a plurality of ethylenically unsaturated monomers. One of the ethylenically unsaturated monomers includes a functional group suitable for reaction with the cross-linking agent. The functional group in the first block is preferably a carbonate, carbamate, or hydroxyl functional group. Other monomers in the plurality include acrylic acid and methyl methacrylate. The first block is also the reaction product of a vinylaromatic hydrocarbon monomer such as diphenylethylene. The second block is the reaction product of a non-functional, ethylenically unsaturated monomer.

Abstract: The invention relates to a process for the polymerization of at least one monomer which can be polymerized via a radical route, in the presence of a stable free radical and of a polymerization initiator, such that, per 100 mol of monomer, the molar amounts of stable radical (SFR) and of initiator (INIT) are such that [(SFR)×FSFR]/[(INIT)×FINIT]<0.15 and FSFR×(SFR)<0.2 mol, in which FSFR represents the functionality of the stable free radical and FINIT represents the functionality of the initiator. The process according to the invention has advantageous kinetics, allows the production of grafted or block copolymers and can be carried out in an extruder.

Abstract: The invention relates to a method for depositing a polymer onto a surface, by applying an aqueous composition, preferably an aqueous composition, onto said surface. The invention also relates to a method for making the composition. The composition comprise a block copolymer, comprising at least two blocks A and B, wherein block A is a polyionic block and block B is a neutral block.

Abstract: A block copolymer is obtained by anionic polymerization, includes two or more polymer blocks A miscible with each other, and at least one (meth)acrylic ester polymer block B immiscible with the polymer blocks A, has a ratio [Mn(Amax)/Mn(Amin)] of 2 or more, wherein the ratio [Mn(Amax)/Mn(Amin)] is the ratio of the largest number average molecular weight [Mn(Amax)] to the smallest number average molecular weight [Mn(Amin)] among the polymer blocks A, has at least one block bonding including polymer block Amax-polymer block B-polymer block Amin, and has a total content of the polymer blocks A ranging from 20 wt % to 45 wt % based on the total mass of the block copolymer. This invention provides block copolymers having two or more polymer blocks A miscible with each other and at least one (meth)acrylic ester polymer block B immiscible with the polymer blocks A and exhibiting satisfactory flexibility, melt fluidity, moldability, coatability, mechanical properties, and other properties.

Abstract: An objective of the present invention is to provide a resin composition which gives a molding excellent in flexibility, impact resilience and mechanical properties and a golf ball having the better shot feel, a long carry, and the excellent cutting resistance when used in a golf ball cover. The resin composition of the present invention is characterized in comprising an ionomer resin, an alkoxysilyl group-containing hydrogenated conjugated diene-based polymer and/or an amino group-containing hydrogenated conjugated diene-based polymer. Alkoxysilyl group content and amino group content in the above-mentioned polymers are preferably 0.0001 to 5 mmol/g, respectively. The golf ball of the invention is characterized in that core is covered with a cover material using the above-mentioned resin composition.

Abstract: A thermoplastic elastomer composition for powder slush molding made up of a polypropylene resin, hydrogenated styrene/butadiene rubber, a process oil and an elastomer excellent in oil absorbing power. A process for making that thermoplastic elastomer composition may include the addition of an organic peroxide to the above components and kneading the obtained mixture while heating.