Abstract: Provided is a molded article that has such a shape as to offer a light condensing or light diffusing effect, has excellent mechanical strengths and heat resistance, and has a high thickness deviation ratio. This molded article includes a cured product of a curable composition containing an epoxy compound (A). The cured product has a flexural modulus of 2.5 GPa or more as measured in conformity with JIS K 7171:2008, except for performing measurement on a test specimen having a length of 20 mm, a width of 2.5 mm, and a thickness of 0.5 mm and at a span between specimen supports of 16 mm. The molded article has a thickness deviation ratio (thickest portion thickness to thinnest portion thickness ratio) of 5 or more and offers a light condensing or light diffusing effect. The molded article preferably has a thinnest portion thickness of 0.2 mm or less. The curable composition is preferably a photocurable composition.

Abstract: The present invention relates to a process for the production of polyurethanes where (a) polyisocyanate, (b) polymeric compounds having groups reactive toward isocyanates, (c) catalysts, (d) polymer P formed from ethylenically unsaturated monomers and having an average of more than 2 functional groups of the formula —O—NH2 and optionally (e) blowing agent, (f) chain extender and/or crosslinking agent, and (g) auxiliaries and/or additives are mixed to give a reaction mixture, and the reaction mixture is allowed to complete a reaction to give the polyurethane. The present invention further relates to polyurethanes produced by this process and to the use of these polyurethanes in the interior of means of transport.

Abstract: The present invention is directed to a new class of thermoplastic elastomers (TPEs) and processes for making them. In some embodiments of the present invention, the end groups of the multi-arm PIB copolymer is a conjugated diene, whereas the other component is a multi-functional dienophile. The components of the TPE of the present invention are chemically connected via the well-known Diels-Alder reaction which is thermally reversible (by the retro-Diels-Alder reaction) at moderately elevated temperatures. The reversibility of the Diels-Alder retro-Diels-Alder reactions allows the recovery of the original components of the TPE and thus its recyclability and also gives the TPE the ability to be reshaped or reformed.

Abstract: A polymer is composed of a linear chain acrylate and a multi-functional acrylate cross-linker. The polymerized composition exhibits a transition at a temperature between about 34° C. and about 50° C. The polymerized composition exhibits shape memory effects. In one embodiment, the linear chain is tert-butyl acrylate and the crosslinker is polyethylene glycol dimethacrylate. The resultant shape memory polymers may be used in medical devices to provide devices with different shapes for pre and post implantation.

Abstract: The present invention relates to a process for the preparation of stabilized impact-modified polycarbonate compositions using dilute aqueous acidic solutions, and to the compositions so prepared themselves.

Abstract: Conjugated diene monovinylarene block copolymers containing a terminal conjugated diene end block and having superior kink resistance properties are disclosed. These copolymers can be used to produce tubing and other end-use articles, and can be a replacement for flexible PVC.

Abstract: The invention relates to a rubber composition having better workability and fracture resistance than the prior art, and more specifically, to a rubber composition containing a polymer (B) obtained from an emulsion-polymerized polymer latex (A) having a number average molecular weight in the range of 1,000-130,000.

Abstract: The present disclosure provides a styrenic resin incorporating post-consumer recycle polystyrene (PCR PS), and systems and methods for making the same. For example, a styrenic resin produced in accordance with present embodiments between approximately 1 weight percent and 9 weight percent PCR PS, has a melt flow rate (MFR) of less than approximately 2.0 g/10 min per ASTM D-1238-10, and an Mz+1 molecular weight of at least 700,000. The styrenic resin is produced by a free-radical polymerization process performed on a feed having PCR PS dissolved in monovinylarene monomer. The feed is produced in such a way so as to continuously remove contaminants commonly associated with PCR PS.

Abstract: The present invention is a shrink label, comprising a heat-shrinkable multilayer resin film comprising an intermediate layer comprising a polystyrene type resin and outer surface layers comprising a polyester type resin, with said intermediate layer interposed therebetween, as a base film, wherein the polystyrene type resin composing said intermediate layer is an aromatic vinyl hydrocarbon-conjugated diene copolymer, and said intermediate layer is bonded to said outer surface layers with an adhesive layer comprising a hydrogen addition product of an aromatic vinyl hydrocarbon-conjugated diene copolymer, having at least one functional group selected from the group consisting of a carboxylic group, an acid anhydride group, an amino group, an epoxy group and a hydroxyl group in a molecule.

Abstract: A low-gloss thermoplastic resin composition that can have excellent heat resistance and weather resistance of the present invention includes (A) a thermoplastic resin forming a first dispersed phase; and (B) an acrylic resin forming a second dispersed phase, wherein the first dispersed phase has a network configuration.

Abstract: Polymeric particles comprising a polymeric matrix that has been formed from a blend of monomers comprising a first monomer which is an ethylenically unsaturated ionic monomer and a second monomer which is an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C., wherein secondary particles are distributed throughout the matrix, in which the secondary particles comprise a hydrophobic polymer that has been formed from an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C. and optionally other monomers, which hydrophobic polymer is different from the polymeric matrix. Also claimed is a process for preparing particles. The particles have improved shatter resistance. Preferably the polymeric particles comprise an active ingredient, especially a colorant.

Abstract: Adhesive composition are described comprising the reaction product of at least one halogenated copolymer of isobutylene wherein halogen atoms of the copolymer are replaced by a polyamine having a melting point greater than 25° C., thereby crosslinking the copolymer. The isobutylene copolymer comprises halogenated repeat units derived from isoprene, butadiene, para-alkyl styrene, or a combination thereof. The adhesive composition comprises a copolymer of isobutylene repeat units and second repeat units selected from alkene repeat units, para-methyl styrene repeat units, or a combination thereof wherein at least a portion of the second repeat units are directly bonded to one another with a polyamine crosslinker having a melting point greater than 25° C. Also described are adhesive articles, such as tapes, comprising such adhesives.

Abstract: A molding compound comprises a copolymer (I)a), produced by polymerization of 90-100% by weight methylmethacrylate, styrene and malic acid anhydride, and optionally 0-10% by weight additional monomers which can be copolymerized with methylmethacrylate, a (co)polymer (II)b), produced by polymerization of 80-100% by weight methylmethacrylate and optionally 0-20% by weight additional monomers which can be copolymerized with methylmethacrylate, and has a solution viscosity in chloroform at 25° C. (ISO 1628 Part 6) of 50 to 55 ml/g, as well as c) optional conventional additives, auxiliary agents and/or fillers. The molding compound is characterized in that the copolymer (I) has a solution viscosity in chloroform at 25° C. (ISO 1628 Part) of 55 ml/g or less. Also disclosed are moldings produced by thermoplastic processing of the molding compound and their uses.

Abstract: It is proposed a new fluid loss control agent useful for the cementation of oil or gas wells. This fluid loss control agent consists of a mixture of a styrene-butadiene latex and a high molecular weight water-soluble polymer such as a copolymer AMPS-Am. The addition of the water-soluble polymer allows drastic reduction of the quantity of latex required to achieve fluid loss control performance and even gas migration control.

Abstract: Provided are a polymethylpentene conjugate fiber, which is capable of imparting to a lightweight polymethylpentene fiber an ability to develop a vivid and deep color, and a porous polymethylpentene fiber, which has a lightweight, a high pore diameter uniformity and a high porosity retention ratio against an external force, said polymethylpentene conjugate fiber and said porous polymethylpentene fiber being appropriately usable as a fiber structure for woven knitted goods, non-woven fabrics, yarns, cotton waddings, etc. The polymethylpentene conjugate fiber is characterized by having an island-in-sea structure wherein the sea component comprises a polymethylpentene-based resin and the island component comprises a thermoplastic resin. The porous polymethylpentene fiber, which comprises a polymethylpentene-based resin, is characterized in that the coefficient of variation (CV) of pore diameter at the fiber cross section is 1-50%.

Abstract: A method of forming a composition includes adding together a plurality of particle brush systems wherein each of the particle brush systems includes a particle and a polymer brush including a plurality of polymer chains attached to the particle. The plurality of polymer chains of the polymer brush exhibit two chain conformations as the degree of polymerization of the polymer chains increases so that the polymer brush includes a concentrated polymer brush region with stretched polymer chains and a semi-dilute polymer brush region with relaxed chains that is radially outside of the concentrated polymer brush region. The degree of polymerization of the polymer brush is no less than 10% less than a critical degree of polymerization and no more than 20% greater than the critical degree of polymerization. The critical degree of polymerization is defined as the degree of polymerization required to achieve a transition from the concentrated polymer brush region to the semi-dilute polymer brush region.

Abstract: Provided is a resin blend including a first resin and a second resin, the second resin having a hydrophobic functional group in a side chain and having a surface energy difference of 0.1 to 20 mN/m from the first resin at 25° C., the resin blend being capable of forming a layer separation structure. Also, provided are a pellet, a method for preparing the same, and a resin molding article having a specific layer separation structure. The resin blend may not only improve mechanical properties and surface hardness of the molding article but also shorten process time, increase productivity and reduce production cost by omitting an additional surface coating step.

Abstract: The invention provides a hollow nano-particle comprising a crosslinked shell and a void core; and a preparation method thereof. The hollow nano-particle may be used in rubber composition, tire product, and pharmaceutical delivery system etc.

Abstract: A bimodal toughening agent comprising a) a first preformed coreshell toughening agent and b) a second preformed coreshell toughening agent wherein the second preformed coreshell toughening agent has a particle size of at least two times larger than that of the first preformed coreshell toughening agent, and the use of the bimodal toughening agent in a thermosettable epoxy resin composition, is disclosed.

Abstract: The instant invention relates to storage stable aqueous solutions of stilbene optical brighteners with polyvinyl alcohols which can be directly used by the papermaker in that they may be diluted with water and/or be metered directly into a coating composition, to provide coated papers of a particularly high whiteness.

Abstract: The invention relates to a thermoplastic composition comprising at least one thermoplastic matrix; and at least one copolymer obtained by copolymerization of C1-C4 alkyl methacrylate, a C1-C8 alkyl acrylate comonomer, and a styrene monomer. The invention also relates to molded bodies based on said thermoplastic composition.

Abstract: The present invention is related to dispersion compositions and asphalt compositions including the dispersion compositions. The dispersion compositions include a microgels dispersed in a continuous oil phase. The dispersed microgels include at least one water swollen/swellable polymer, water soluble polymer, or combination thereof. The asphalt compositions include bitumen, aggregate, and a dispersion composition having a microgels dispersed in oil. The dispersed microgels include at least one water swollen/swellable polymer, water soluble polymer, or combination thereof.

Abstract: An RF-weldable thermoplastic elastomer composition, including a thermoplastic elastomer of non-RF-weldable or poorly RF-weldable character, e.g., a styrenic copolymer/olefinic polymer blend thermoplastic elastomer, and polyol in an amount that is less than 1% by weight, based on weight of the thermoplastic elastomer, and is effective to enhance RF-weldability of the thermoplastic elastomer. The composition may also contain an antistatic ionomer, in an amount that is less than 15% by weight, based on weight of the thermoplastic elastomer. Films of such composition are usefully employed to form RF-welded film articles, such as blood bags, IV fluid bags, glucose bags, urine bags, stool bags, biological sample bags, pouches, covers, and liners.

Abstract: Disclosed is an ethylene-propylene-diene terpolymer having isotactic polypropylene crystallinity compounded with a blend rubber wherein the terpolymer can be present in an amount effective to improve tack, aged tensile strength retention, fatigue resistance, ozone cracking resistance, and reversion resistance. Also disclosed is an elastomer composition wherein the terpolymer can have at least 60 wt % propylene-derived units, at least 6 wt % ethylene-derived units and from 0.3 to 10 wt % diene-derived units, and a tire sidewall composition comprising from 10 to 30 phr terpolymer, from 20 to 60 phr natural rubber, from 20 to 60 phr polybutadiene rubber, and an optional secondary blend rubber. Also disclosed is a vulcanizate of the elastomer composition, and articles, tire sidewalls, tires, retreaded tires, bias truck tires, off-road tires, and passenger automobile tires made with the vulcanizate. Further disclosed are processes for making molded articles and tires, and for retreading tires.

Abstract: Method for the preparation of a sticky high impact heterophasic polypropylene (HECO) in a reactor facility comprising in series (i) a first reaction system, (ii) a first conveying line connecting the first reactor system with a second reactor system comprising an outlet, (iii) a second conveying line connecting the outlet with a purge bin comprising a feeder, and (iv) a conveying system being connected with the feeder, and the preparation of said heterophasic polypropylene (HECO) comprises the steps in the order of (a) producing in said first reactor system the polypropylene matrix (M), (b) transferring at least a part of said polypropylene to said second reactor system via the first conveying line, (c) producing in said second reactor system the elastomeric copolymer obtaining the heterophasic polypropylene (HECO), (d) discharging said heterophasic polypropylene (HECO) from said second reactor system via the outlet, (e) transferring said discharged heterophasic polypropylene (HECO) via the second conveying l

Abstract: A method for producing an AB block copolymer with PDI is provided. The method comprises steps of: 1) reaction, in the presence of at least one free radical initiator, of a reaction mixture comprising a compound of formula (I), and 2) reaction, at a temperature of 45° C. or above, of a reaction mixture comprising an ethylenically unsaturated monomer B and, independent from that of step 1), a compound of formula (I) and the macroinitiator of step 1) in solvent(s) to obtain the AB block copolymer; wherein the weight ratio of the compound of formula (I) to the macroinitiator in step 2) is at least 1:1000.

Abstract: The present disclosure provides a resinous material for covering electric wire having all required properties meeting or exceeding a certain standard, produced using a cyclic olefin-derived resin, and electric wires manufactured using the resinous material for covering electric wire, and flame-retardant cables. The resinous material including (A) an olefin-derived resin, (B) an elastomer resin, (C) a cyclic olefin-derived resin having a glass transition point of from 120° C. to 170° C., and (D) a flame retardant, the resinous material having: a content of the component (D) of from 60 parts by mass to 150 parts by mass relative to 100 parts by mass of the total contents of the components (A), (B) and (C); a tensile elongation of no less than 250%; and a heat deformation of no greater than 40%.

Abstract: A method of preparing a polystyrene blend that includes combining a first polystyrene composition having a first melt flow index with a second polystyrene composition having a second melt flow index and forming a polystyrene blend, the second melt flow index being at least 2 dg/min higher that the first melt flow index. The polystyrene blend has an observed tensile strength value greater than 3% above the expected tensile strength value. The second polystyrene composition can include a recycled polystyrene material, which can include expanded polystyrene. An alternate method of preparing the polystyrene blend includes combining a polystyrene composition with a styrene monomer to form a reaction mixture, polymerizing the reaction mixture and obtaining a polystyrene blend, where the polystyrene containing composition has a melt flow index at least 2 dg/min higher than the melt flow index of the styrene monomer after it has been polymerized.

Abstract: A dielectric resin composition for a film capacitor is a mixture containing an organic material A and an organic material B. The organic material A includes at least two kinds of organic material components A1, A2, . . . having reactive groups (for example, OH, NCO) that cross-link each other. The organic material B does not have a reactive site capable of reacting with the organic material A and has a dielectric loss tan ? of 0.3% or less at a temperature of 125° C. The mixture has a glass transition temperature of 130° C. or higher and preferably 280° C. or lower.

Abstract: The present invention relates to a plastics molding composition encompassing at least one poly(meth)acrylate A) and at least one impact-modified poly(meth)acrylate B), wherein the die swell of the plastics molding composition is at least 15%, measured at 5 MPa and 2200C to DIN 54811 (1984), and the melt flow rate of the poly(meth)acrylate A) is at least 10 ml per 10 minutes, measured to ISO 1133 at 2300C with a load of 3.8 kg. The present invention also describes moldings which encompass the plastics molding composition described above, and processes for the production of the said moldings.

Abstract: A case for valve-regulated lead-acid battery comprising an olefin polymer composition comprising: A) From 60 wt % to 95 wt %, of a propylene homopolymer, or a copolymer of propylene containing 3% or less of ethylene, said homopolymer or copolymer having a Polydispersity Index (P.I.) value of from 4.6 to 10 and a fraction insoluble in xylene at 25° C., higher than 98 molar %; and B) from 5 wt % to 40 wt %, of a copolymer of propylene and ethylene containing from 30 wt % to 65 wt % of ethylene derived units; the sum A)+B) being 100.

Abstract: The invention relates to elastic expanded polymer foams and also a process for producing expanded polymer foams by sintering a mixture comprising foam particles P1 and P2 composed of different thermoplastic polymers or polymer blends, wherein the foam particles P1 are obtained by prefoaming expandable, thermoplastic polymer particles comprising A) from 45 to 97.9 percent by weight of a styrene polymer, B1) from 1 to 45 percent by weight of a polyolefin having a melting point in the range from 105 to 140° C., B2) from 0 to 25 percent by weight of a polyolefin having a melting point below 105° C., C1) from 0.1 to 25 percent by weight of a styrene-butadiene or styrene-isoprene block copolymer, C2) from 0.0 to 10 percent by weight of a styrene-ethylene-butylene block copolymer, D) from 1 to 15 percent by weight of a blowing agent, E) from 0 to 5 percent by weight of a nucleating agent, where the sum of A) to E) is 100% by weight.

Abstract: Provided is a maleimide copolymer which exhibits an excellent hue, an effect of imparting high heat resistance, and excellent kneadability. Specifically provided is a maleimide copolymer which comprises 50 to 60 mass % of a styrene monomer unit, 30 to 50 mass % of a maleimide monomer unit, and 0 to 10 mass % of an unsaturated dicarboxylic anhydride monomer unit, and which has a weight-average molecular weight (Mw) of 90,000 to 130,000 and a residual maleimide monomer content of 300 ppm or lower.

Abstract: A hydrocarbon polymer modifier (HPM) having high softening point and high aromaticity, is an interpolymer of (i) a piperylene component; (ii) an aromatic component; and (iii) a cyclic pentadiene component comprising a dicyclopentadiene fraction (DCPD fraction) and a dimethylcyclopentadiene fraction (MCPD fraction), wherein a weight ratio of the MCPD fraction to the DCPD fraction is from 0.8 to 20, and wherein the MCPD fraction is at least 20 wt % of the cyclic pentadiene component. In a method, the proportions of (i), (ii), (iii), and an optional amylene component are adjusted to control aromaticity, softening point and Mz of the HPM. An elastomeric composition incorporates the HPM.

Abstract: The propylene-based polymer composition includes a specific amount of a propylene-based polymer (A) having a syndiotactic pentad fraction (rrrr fraction) of 85% or more and containing 90 to 100 mol % of a structural unit derived from propylene; a specific amount of a propylene-based copolymer (B) containing 40 to 89 mol % of a structural unit derived from propylene and 11 to 60 mol % of a structural unit derived from an ?-olefin and satisfying a specific equation of intrinsic viscosity [?] and MFR; and specific amount(s) of at least one polymer of an olefin-based thermoplastic elastomer (C), a styrene-based elastomer (D), a propylene/ethylene/?-olefin copolymer (E) and an isotactic propylene-based polymer (F), and optionally an ethylene/vinyl acetate copolymer (G) and/or an ethylene-based polymer (H).

Abstract: It is an object of the present invention to provide (1) a copolymer for a cured product that is satisfactory in properties, such as adhesion properties, as a chip stacking adhesive or the like. The present invention is a copolymer comprising repeating units represented by formula (I), formula (II), and formula (III), (wherein R1, R2, and R3 each independently represent a hydrogen atom or a methyl group, R4 represents an alkyl group or a cycloalkyl group, R5 represents a hydrogen atom or a C1 to C6 alkyl group, m, n, and k represent a molar ratio of the respective repeating units, m represents a positive number of 0 or more and less than 1, n and k each independently represent a positive number, and satisfy a relation of m+n+k=1), and having a weight-average molecular weight in the range of 50,000 to 200,000.

Abstract: Expandable, thermoplastic polymer bead material composed of a multiphase polymer mixture which comprises blowing agent and has at least one continuous phase of a thermoplastic polymer, where at least two different disperse phases P1 and P2 are present, disperse in the continuous phase, and also to processes for its production, and to use for the production of elastic molded foams.

Abstract: Disclosed is a pressure-sensitive adhesive for single- or double-sidedly tacky pressure-sensitive adhesive strips that are redetachable without residue or destruction both by extensive stretching substantially in the bond plane and by peeling. The pressure-sensitive adhesive is composed at least of (1) a vinylaromatic block copolymer, (2) a solid tackifying resin having a softening temperature by the ring-and-ball method of more than 30° C. and (3) a resin which is liquid at room temperature (23° C.), wherein the fraction of liquid resin accounts for at least 40% by weight, based on the total amount of resin. Also disclosed are strips formed from the adhesive and the use of the strips to form redetachable bonds.

Abstract: An object of the present invention is to provide a rubber composition for a tire, which is, when it is used as a rubber composition for a tire, capable of exhibiting good dry grip properties and excellent grip properties in both a relatively low temperature range and a relatively high temperature range, as well as a tire produced by using the rubber composition. The rubber composition of the present invention contains: a rubber component made of at least one type of diene-based polymer; and a copolymer resin obtained by copolymerizing ?-methylstyrene based monomer and aromatic vinyl monomer.

Abstract: To provide a novel cross copolymer and resin composition which are improved in heat resistance and compatibility over conventional ethylene/aromatic vinyl compound copolymers and which have low crystallinity, are excellent in softness, transparency and compatibility and show mechanical properties similar to soft vinyl chloride resins, as compared with conventional cross copolymers.

Abstract: A composition of matter particularly well suited for use as a peelable seal layer is described. The composition comprises from about 50 to about 85 percent by weight of a first polymer and from 15 to 50 percent of a second polymer. The first polymer is a propylene based polymer characterized by having a melting point of at least 125° C. together with a Comonomer Composition Distribution Breadth (“CCDB”) less than 2. The second polymer is characterized by having an interfacial adhesion with the first polymer of less than 1 lb/inch.

Abstract: The present invention relates to a compounding method for producing impact-modified thermoplastic compositions with a low content of volatile organic compounds (hereinafter VOCs), wherein relatively inexpensive polymer raw materials with a comparatively elevated initial VOC content may be used, resulting in lowered production costs for producing such VOC-reduced polymer compositions.

Abstract: The invention describes a composition comprising, in the form of aqueous dispersion, A) for every 100 parts by weight of a, or of a plurality of, (meth)acrylate polymer(s); B) from 1-400 parts by weight of a, or of a plurality of, (meth)acrylate polymer(s), which contain(s) a compound of the formula (I) copolymerized, where the (meth)acrylate polymer(s) B) differ from the (meth)acrylate polymers specified in A), where these are obtainable by emulsion polymerization of a mixture comprising a) from 0.1 to 99.9 percent by weight of at least one compound of the formula (I), preferably of a benzophenone (meth)acrylate, in which the definitions of the moieties are those given in the description; and b) from 99.9 to 0.

Abstract: This invention discloses a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, and wherein said tread is comprised of (1) a filler, (2) a cured rubbery polymer, and (3) core-shell particles which are comprised of (a) a crosslinked elastomeric core consisting essentially of repeat units that are derived from at least one conjugated diolefin monomer and from 15 weight percent to 30 weight percent at least one crosslinking monomer, wherein the crosslinked elastomeric core is a polymeric composition having a glass transition temperature which is within the range of ?20° C. to 20° C., and (b) a polymeric shell which is derived from at least one vinyl aromatic monomer, wherein the polymeric shell has a glass transition temperature which is within the range of 50° C.

Abstract: An elastomeric composition incorporating a hydrocarbon polymer modifier including piperylene, cyclic pentadiene and aromatic components, and having a softening point from 80° C. to 160° C., z-average molecular weight greater than 10,000, and at least 1 mole percent aromatic hydrogen, based on the total moles of hydrogen in the modifier. In a method, the elastomeric composition is processed with a cure package into a composition in the desired shape, which is cured to form the article. The modifier may optionally be immiscible with an elastomer in the composition and/or co-cured with the elastomer or filler in the composition. A tire or tire component may include the elastomeric composition.

Abstract: A composition including polyhydroxyalkanoic acid (PHA), an elastomeric compound of core-shell type, and an olefinic copolymer including an ethylenic monomer bearing an epoxy function. The PHA composition exhibits improved impact strength.

Abstract: A macromolecule including a polymer and a polyhedral radical chemically bonded to a terminus of the polymer provides numerous processing and performance advantages. Further functionalization of this macromolecule also is described as being advantageous in certain circumstances. Methods of providing, functionalizing, and utilizing the macro-molecule also are provided.

Abstract: The present disclosure provides a styrenic resin incorporating post-consumer recycle polystyrene (PCR PS), and systems and methods for making the same. For example, a styrenic resin produced in accordance with present embodiments includes at least approximately 20 weight percent PCR PS, has a melt flow rate (MFR) of less than approximately 2.5 g/10 min per ASTM D-1238-10, and an Mz+1 molecular weight of at least 685,000. The styrenic resin is produced by a free-radical polymerization process performed on a feed having PCR PS dissolved in monovinylarene monomer. The feed is produced in such a way so as to remove contaminants commonly associated with PCR PS.

Abstract: A resin composition for vibration damping material for a vibration damping material exhibiting high vibration damping performance in a wider temperature range and a vibration damping material using the same are provided. The resin composition contains 100 parts by weight of a resin component A as a matrix and 5 to 300 parts by weight of a resin component B dispersed in the matrix. The resin component B has two or more cyclic structures selected from the group consisting of an aromatic hydrocarbon group, an aliphatic cyclic hydrocarbon group, and a heteroaromatic group, and is in a glassy state at use temperature.

Abstract: A polymer composition comprising star macromolecules is provided. Each star macromolecule has a core and five or more arms, wherein the number of arms within a star macromolecule varies across the composition of star molecules. The arms on a star are covalently attached to the core of the star; each arm comprises one or more (co)polymer segments; and at least one arm and/or at least one segment exhibits a different solubility from at least one other arm or one other segment, respectively, in a reference liquid of interest.