Abstract: Reinforced rubber composition based at least (a) on an elastomeric matrix comprising natural rubber as the predominant diene elastomer, (b) on a reinforcing filler comprising carbon black in a weight fraction of more than 50% relative to the total weight of the filler, and (c) on a compound belonging to the families of hydrazides or hydrazones or to the family of amines, wherein the carbon black is dispersed in the elastomeric matrix with a Z value of greater than or equal to 80. This rubber composition is intended, for example, for the manufacture of a semi-finished rubber product intended for a tyre of motor vehicles.

Abstract: A process for producing an unvulcanized rubber composition comprising a rubber wet master batch yielded by using, as raw materials, at least a filler, a dispersing solvent and a rubber latex solution, the rubber latex solution comprising two or more rubber latex solution species different from each other, and the process comprising a step (I) of dispersing the filler into the dispersing solvent to produce a filler-containing slurry solution, a step (II) of mixing the filler-containing slurry solution with the rubber latex solution to produce a filler-containing rubber latex solution, and a step (III) of coagulating and drying the filler-containing rubber latex solution to produce the rubber wet master batch.

Abstract: The particle size distribution of a first fly ash is compared to an ideal particle size distribution that was empirically developed to provide a resin melt with a lower viscosity as more fly ash is added. A second fly ash material is similarly compared to the ideal curve and then is blended or optimized to provide an optimum filler for use with a suitable resin or similar material. The blended optimum filler is combined with a resin, an acid scavenger and an anti-oxidant to form a master batch which is available for mixing with other resins to form a material that is processed into a final product. Additional additives may be added for, among other things, foaming and coloration.

Abstract: A disk-like nanoparticle includes a core layer that comprises a cross-linked multi-vinyl substituted aromatic hydrocarbon and a shell layer that comprises tri-block copolymer chains, each having a first, a second, and a third block. The first and third blocks of the tri-block copolymer chains comprise vinyl aromatic monomer units and are crosslinked with the core. The second block comprises conjugated diene monomer units and comprises a top and bottom axial surface of the disk-like nanoparticle. In the case of a nanoparticle having A-B-C tri-block copolymer chains, the third block comprises a top and bottom axial surface of the disk-like nanoparticle.

Abstract: The present invention relates to a method for the continuous production of a polymer by radical polymerization, wherein at least three materials are mixed with microstructures in one or more mixers and are then polymerized in at least one reaction zone.

Abstract: The present invention provides a method for producing a rubber composition containing a rubber component (A) of at least one selected from natural rubbers and synthetic dienic rubbers, a filler containing an inorganic filler (B), a silane coupling agent (C) and at least one vulcanization promoter (D) selected from thiurams, dithiocarbamate salts, thioureas and xanthate salts, wherein the rubber composition is kneaded in multiple stages, and in the first stage of kneading, the rubber component (A), all or a part of the inorganic filler (B), all or apart of the silane coupling agent (C) and the vulcanization promoter (D) are kneaded. The production method enables production of a rubber composition having a low-heat-generation property while successfully enhancing the coupling function activity of the silane coupling agent.

Abstract: The present invention provides a method for producing a rubber composition containing a rubber component (A) of at least one selected from natural rubbers and synthetic dienic rubbers, an inorganic filler (B), a silane coupling agent (C) and an acidic compound (D), wherein the rubber composition is kneaded in multiple stages, and in the final stage of kneading, the acidic compound (D) is added, and the highest temperature of the rubber composition in the final stage of kneading is from 60 to 120° C. The production method enables production of a rubber composition having a low-heat-generation property while successfully preventing the coupling function activity of the silane coupling agent from lowering.

Abstract: A tread rubber composition having improved abrasion resistance is provided. The tread rubber composition comprises a conjugated diene polymer or copolymer, at least one filler, from 2 to 10 phr of liquid polybutadiene, from 2 to 5 phr of zinc oxide and from 1 to 100 phr of process oil. The liquid polybutadiene is functionalized by reaction with unsaturated acid anhydride, has a number average molecular weight of from 3 to 8 kg/mol and an acid number of from 40 to 80. Also provided are methods for preparing the tread rubber composition comprising mixing of the foregoing ingredients by master-batch and final batch steps whereby the abrasion resistance of the tread rubber composition is improved.

Abstract: Color concentrates for thermoplastic biofiber composites are disclosed. The concentrates employ three factors to achieve concentrated delivery of color to the processing machine and excellent and substantially uniform dispersion of color in the processing machine: melt flow of the concentrate exceeding at least 4 g/10 min. using ASTM D-1238; pellet size of the concentrate such that at least 50 pellets weigh less than one gram; and weight percent of the colorant ingredients in the concentrate exceeding at least 30 weight percent.

Abstract: The invention relates to a tire having a rubber component which contains short fiber reinforcement with a compatabilizer for the fiber reinforcement. Desirably said short fiber reinforcement is an aramid pulp. Desirably said compatabilizer is an epoxy functionalized natural rubber.

Abstract: The present invention provides a process for making silica-filled rubber masterbatch using silica hydrophobated with a trimethoxy silane coupling agent that is soluble in an alcohol-water solution containing at least about 70 wt % water. One embodiment uses a mixture of trimethoxy silanes, one or more of which react with rubber to bond the silica to the rubber, and one or more of which do not react with rubber, but do hydrophobate the silica. Hydrophobated silica is mixed with latex polymer and incorporated into rubber during coagulation of the latex, which is preferably coagulated with calcium chloride. The present invention further provides a process for making the trimethoxy silane coupling agents. Preferred trimethoxy silane coupling agents include bis-(3-trimethoxysilylpropyl)-disulfide and bis-(3-trimethoxysilylpropyl)-tetrasulfide.

Abstract: The process of the present invention provides a novel way of producing a masterbatch or polymer improver by heating a wax or polymer with a low temperature and mixing the molten wax with a additives, including pigments, at a low temperature above the congealing point of the wax to create a carrier material, in doing so this process will not degrade the pigment or additive which will be mixed together.

Abstract: A method includes: mixing a polymer cement and a filler to form a solution masterbatch; optionally drying the solution masterbatch to form a crumb polymer composition; mixing a low viscosity polymeric or oligomeric liquid into the solution masterbatch or crumb polymer composition; and intermeshing mixing the solution masterbatch or crumb polymer composition.

Abstract: A granulated colorant as a granulation product of a powdery nigrosine dye, that has a bulk density of 0.4 to 0.7 g/ml and a hardness of 1 to 20 N. A high-concentration master batch obtained by blending a granulated colorant and a thermoplastic resin, which comprises 25 to 100 parts by weight of a nigrosine dye in the granulated colorant per 100 parts by weight of the thermoplastic resin. A colored composition comprising a granulated colorant or high-concentration master batch and a thermoplastic resin or thermoplastic elastomer.

Abstract: The present invention is a method for manufacturing a rubber composition containing a rubber component, a resin, a reinforcing filler and a crosslinking agent, and the method contains: a first step of adding the resin to the rubber component to produce a master batch; a second step of kneading the master batch with the reinforcing filler to produce a filled master batch; and a third step of kneading the filled master batch with the crosslinking agent, thereby providing a rubber composition having higher elasticity and large breaking elongation.

Abstract: An elastomer composite with silica-containing filler is described, along with methods to make the same. The advantages achieved with the elastomer composite and methods are further described.

Abstract: A golf ball material composed of (A) an oxygen-containing inorganic metal compound in the form of a particulate or a master batch capable of neutralizing at least some of the acid groups in an acid-containing polymer blend, (B) one or more polymer selected from among diene polymers, thermoplastic polymers and thermoset polymers, and (C) an acid-containing polymer is prepared by mixing component A in a blend of components B and C. The golf ball material has a good heat resistance, flowability and processability, and can be used to produce high-performance golf balls having durability, scuff resistance and optimal hardness without a loss of rebound.

Abstract: A durable, flexible, impermeable thermoplastic elastomer composition is produced using a dynamic vulcanization process conducted in a high shear mixer at elevated temperature.

Abstract: The invention provides a golf ball material comprising components (A), (B) and (C): (A) a mixture of different masterbatches prepared by separately masterbatching two or more different metal ions (A1) or a masterbatch prepared by simultaneously masterbatching two or more different metal ions in itself (A2), (B) one or more polymer selected from the group consisting of diene polymers, thermoplastic polymers and thermoset polymers, and (C) one or more polymer having an acid content of from about 0.5 to about 30 wt % and selected from the group consisting of olefin-unsaturated carboxylic acid copolymers, olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester terpolymers, unsaturated carboxylic anhydride-containing polymers, unsaturated dicarboxylic acid-containing polymers and unsaturated dicarboxylic acid half ester-containing polymers. The invention also provides a method for preparing such a golf ball material, and a golf ball made of the material.

Abstract: The present disclosure is directed to methods for preparing rubber compositions where those rubber compositions comprise at least one telechelic polymer and at least one filler. The methods make use of a mixer that includes a mixing chamber and at least one rotor with wings of specified configuration. Use of the disclosed methods yields a rubber composition with improved properties including an improved dispersion index after master batch mixing as compared to the same rubber composition mixed using standard 4 wing mixers.

Abstract: A polypropylene resin composition comprising (a) 100 parts by weight of a resin composition, which contains 51 to 99% by weight of a propylene polymer and 1 to 49% by weight of an ethylene polymer having a density of 0.85 to 0.93 g/cm3, and (b) 0.001 to 0.5 part by weight of a metal salt defined by a specific chemical formula; and a process for producing such a polypropylene resin composition, comprising the steps of (1) mixing 1 to 100 parts by weight of the metal salt with 100 parts by weight of the propylene polymer and/or the ethylene polymer, thereby producing a master batch, and (2) mixing the master batch with a mixture containing the propylene polymer and the ethylene polymer.

Abstract: Provided are an organically modified silica master batch elastomer having superior affinity for silica and a method for preparing the same. A copolymer solution-polymerized from a conjugated diene-based monomer and a vinyl aromatic monomer is mixed in solution with organically modified silica having the silica modified with a specific aliphatic hydrocarbon to prepare the organically modified silica master batch elastomer. The organically modified silica master batch elastomer according to the present invention has improved mechanical properties, abrasion resistance and blending processability over the existing master batch elastomers containing common silica. Thus, when it is used as a tire material, improved fuel efficiency, abrasion resistance and wet traction may be expected.

Abstract: A process for the preparation of a rubber composition for the manufacture of tyres is presented. The composition is based on one or more diene elastomers, one or more reinforcing fillers, and a crosslinking system. The composition includes particles of one or more thermoplastic materials chosen from amorphous thermoplastic materials and semicrystalline thermoplastic materials, with the glass transition temperature of the amorphous thermoplastic material or materials and the melting point of the semicrystalline thermoplastic material or materials varying from 80° C. to 300° C. The particles exhibit a volume-average diameter of less than or equal to 200 ?m.

Abstract: The instant invention provides a masterbatch composition, method of producing the same, polymeric compositions suitable for films, and films made therefrom. The masterbatch composition according to the present invention comprises: (a) from 70 to 90 percent by weight of a filler comprising calcium carbonate; and (b) from 10 to 30 percent by weight of a propylene/alpha-olefin copolymer composition, wherein said propylene/alpha-olefin copolymer composition has a crystallinity in the range of from 1 percent by weight to 30 percent by weight, a heat of fusion in the range of from 2 Joules/gram to 50 Joules/gram, and a DSC melting point in the range of 25° C. to 110° C.

Abstract: Plastisols and organosols are provided that include plasticizers that include mono-, di- and triesters of glycerol. The plasticizers are good solvators for polyvinyl chloride and impart low plastisol and organosol viscosities.

Abstract: Disclosed is a versatile dispersant for an additive for olefin resins. The dispersant (A) for an additive (B) for polyolefins contains an alkyl methacrylate polymer which comprises an alkyl methacrylate (a1) unit having an alkyl group with a carbon number of at least 2 as the main component, and which has a mass average molecular weight of 15,000-145,000.

Abstract: The present invention relates to a heat-absorbing polymer composition containing a transparent thermoplastic synthetic substance, an inorganic infrared absorber with stabilizer and also to the production and use of the polymer compositions according to the invention and to the products produced therefrom. In particular, the present invention relates to the stabilization of inorganic IR absorbers from the group of the tungsten compounds and also to the use of the polymer composition according to the invention containing these stabilized inorganic IR absorbers for the purpose of producing windowpanes for use in buildings, motor vehicles, rail vehicles or aircraft.

Abstract: The present invention concerns an improved method for introducing free carbon black additive into a polymer powder or fluff, and in particular into polyethylene powder.

Abstract: The invention relates to a tire having a rubber component which contains short fiber reinforcement with a compatabilizer for the fiber reinforcement. Desirably said short fiber reinforcement is an aramid pulp. Desirably said compatabilizer is an epoxy functionalized natural rubber.

Abstract: Disclosed is a method including (A) melt blending first components including (a-1) a poly(trimethylene terephthalate) homopolymer or copolymer resin; and (a-2) one or more ionomer polymers or a combination of one or more ionomer polymers and acid polymers; to provide a first melt blend; and (B) melt blending said first melt blend with one or more Group B polymeric toughener(s) selected from the group consisting of an ethylene copolymers of the formula E/X/Y wherein: E is the radical formed from ethylene; X is selected from the group consisting of radicals formed from CH2?CH(R1)—C(O)—OR2 Y is one or more radicals formed from selected monomers with the proviso that Y must include at least one radical formed from monomers selected from the group consisting of maleic anhydride, (meth)acrylic acid, maleic acid, maleic acid monoesters, itaconic acid, fumaric acid, fumaric acid monoesters, salts of said preceding acids, and glycidyl acrylate, glycidyl methacrylate, and glycidyl vinyl ether.

Abstract: A molded propylene polymer product improved in flexural properties and/or impact resistance is prepared by a process comprising the steps of blending fibrous inorganic filler-containing pellets with a propylene polymer-containing matrix resin composition, in which the pellets comprises 35-80 wt. % of a fibrous inorganic filler, 1-45 wt. % of an olefin polymer, 5-45 wt. % of an elastomer, and 0.3-10.0 wt. % of a specific lubricant; kneading the blended product under molten condition; and molding the kneaded product.

Abstract: A process of producing a flame-retardant silane-crosslinked olefin resin, an insulated wire, and a process of producing an insulated wire. The process includes kneading and molding a silane graft batch containing a silane-grafted olefin resin in which a silane coupling agent is graft polymerized onto an olefin resin, a flame retardant batch in which an olefin resin is mixed with a flame retardant containing metal hydroxide, a catalyst batch in which an olefin resin is mixed with a silane crosslinking catalyst, and water crosslinking the batches after kneading and molding. A mass ratio of the flame retardant batch to the silane graft batch is 60:40 to 90:10, and the catalyst batch amount is 3 to 10 part by mass with respect to 100 part by mass of a component of the silane graft and flame retardant batches. The wire is prepared by covering a conductor with the silane-crosslinked olefin resin.

Abstract: A rubber asphalt and a preparation method thereof are disclosed. The rubber asphalt comprises matrix asphalt and rubber powder modifier in a ratio of 4:1-4, wherein the rubber powder modifier comprises waste tyre rubber powder and hexanediol in a ratio of 94-96:6-4. The method comprises the following steps: mixing the hexanediol with the waste tyre rubber powder according to the ratio and stirring and wetting to obtain the rubber powder modifier; placing the matrix asphalt into a reaction kettle and heating to 90-170° C.; adding the rubber powder modifier into the reaction kettle according to the ratio; and raising the temperature to 190-210° C. under the stirring state to obtain the rubber asphalt. The rubber asphalt has an extensibility of 13-19 cm at 5° C., a penetration of 68-75 at 25° C. and a softening point of 53-90° C. The asphalt -aggregate ratio of a mixed material on the subsequent work section can be reduced to 6-8 from 8-10.

Abstract: A polyacetal resin composition and molded article having a high metallic gloss, small change in a color tone according to the viewing angle, high weld performance, and high mechanical properties can be provided in which the amount of formaldehyde to be produced in molding and recycle is suppressed, the mold deposit is improved, and the repeated impact resistance after aging is high. A polyacetal resin composition comprising: (A) 100 parts by mass of a polyacetal copolymer resin, and (B) 0.1 to 10 parts by mass of an aluminum pigment, the aluminum pigment having a coin-like or flake-like flat shape, a volume average particle size D50 of 15 to 50 ?m, an average surface roughness Ra of 20 to 50 nm, and an average height Rc of depressions and projections in a surface roughness curve of 80 to 200 nm.

Abstract: The invention relates to novel batches of cross-linking agents, containing marking substances, to novel cross-linkable rubber mixtures, to a method for the production thereof and to the use of same.

Abstract: A method for fabricating energy plastic masterbatches and a plastic product containing energy plastic masterbatches fabricated by the method are provided. The fabrication method includes: oxidizing carbon black with ozone; fully mixing carbon black after treatment and a nano tourmaline powder to form a base; adding ultrafine rutile titanium dioxide to the base, and mixing fully, to form an energy raw material; drying the mixed energy raw material at 100-120° C.

Abstract: A durable substrate coating and a process of making include a resin master batch. The resin master batch can include ethylene propylene diene with a polymethylene backbone, mineral spirits, fillers, a de-tackifier, a curative, an activator component, and a metal dryer. The process can include adding the mineral spirits to: the ethylene propylene diene, a plasticizer, and the de-tackifier, and blending to form a solution. The process can include adding the fillers, a light stabilizer, a rheology modifier, and a pigment to the solution, forming a first mixture. The process can include adding another rheology modifier, another light stabilizer, an antioxidant, and a curative to the first mixture, forming a second mixture. The process can include mixing the second mixture to homogenously disperse each ingredient while maintaining a temperature of 60 degrees Celsius to prevent the mineral spirits from flashing.

Abstract: The invention relates to a novel process for producing coloured polypropylene compositions having a high content of ?-modification, wherein polypropylene is melt blended with at least one inorganic pigment and at least one ?-nucleating agent, wherein a1) polypropylene is melt blended with at least one inorganic pigment or with a first concentrate comprising the at least one inorganic pigment to obtain a coloured polypropylene and a2) the coloured polypropylene is melt blended with at least one ?-nucleating agent or with a second concentrate comprising the at least one ?-nucleating agent to obtain the coloured ?-nucleated polypropylene composition or b1) polypropylene is melt blended with at least one ?-nucleating agent or with a second concentrate comprising the at least one ?-nucleating agent to obtain a ?-nucleated polypropylene and b2) the ?-nucleated polypropylene is melt blended with at least one inorganic pigment or with a first concentrate comprising the at least one inorganic pigment to obtain the col

Abstract: An agitating and mixing device 1 of the present invention includes a container 2 for storing the composition, an agitating member 3 for agitating the composition, which is inserted in the container 2, and a driving device 4 for vibrating the container 2. The agitating member 3 has a rod-like portion 32 having one end portion and another end portion, a plate-like portion 31 provided on the one end portion of the rod-like portion 32 and the grip portion 33 provided on the other end portion of the rod-like portion 33. The plate-like portion 31 is perpendicular to the rod-like portion 32. The agitating member 3 is configured to agitate the composition by spacing the plate-like portion 31 apart from the bottom surface of the container 2.

Abstract: A method for producing a conductive polyamide-polyphenylene ether resin composition comprising (A) 10 to 90 parts by mass of a polyphenylene ether resin, (B) 5 to 85 parts by mass of a polyamide having a (terminal amino group)/(terminal carboxyl group) ratio falling within the range from 0.20 to 4.0, (C) 5 to 85 parts by mass of a polyamide having a (terminal amino group)/(terminal carboxyl group) ratio falling within the range from 0.05 to 0.19 and (D) 0.1 to 10 parts by mass of a conductive filler, the method comprising the step of melt-kneading of the component (A), the component (B), a compatibilizer (F) and a master batch (E) obtained by melt-kneading of the component (D) and the component (C) in advance.

Abstract: Disclosed is a thermoplastic polyolefin (TPO) nanocomposite composition, more particularly a TPO nanocomposite composition including a polypropylene resin, a polyethylene resin, a rubber resin, a nanoclay master batch and a glass bubble master batch. Since the disclosed TPO nanocomposite composition has low specific gravity and superior gloss reducing effect and scratch resistance, it may be usefully applied to light automobile parts, uncoated automobile exterior parts, or the like.

Abstract: The present invention relates to a process for the production of impact-modified filled polycarbonate compositions and molding compositions. A process of the present invention involves: (i) mixing the CNT (component C) with rubber-containing vinyl copolymer (component B) and/or rubber-free vinyl copolymer (component D) on a twin screw extruder, to obtain a CNT masterbatch, (ii) mixing the CNT masterbatch with polycarbonate (component A) and optionally with Component B and/or Component D and optionally with an additive on a twin screw extruder. A polycarbonate composition prepared according to the present invention does not experience degradation of the molecular weight of the polycarbonate during compounding a compared to processes known in the art.

Abstract: Use of a bimodal filler system allows masterbatches with higher filler levels to be processable. When used with moisture curable resins, the use of a masterbatch having a bimodal filler allows the preparation of a composition having a higher percentage of moisture curable resin than if a unimodal filler was used and also provides enhanced flame retardant properties.

Abstract: The present invention provides a thermoplastic resin composition comprising a thermoplastic resin and aggregated particles of fibrous crystals. According to the thermoplastic resin composition, a molded articles which adequately reduce a defect in appearance can be obtained.

Abstract: A particulate-filled rubber composition contains at least one silane-reactive particulate filler and a mixture of at least one blocked mercaptosilane coupling agent possessing two thioacyl groups and at least one blocked mercaptosilane possessing a single thioacyl group.

Abstract: Disclosed is a white film having low content of oligomer within the film.

Abstract: Protein-polymer compositions and processes for their production are provided where the compositions have improved resistance to ultraviolet light induced weathering and associated loss of enzyme activity. The incorporation of both a sterically hindered amine and an ultraviolet light absorber at a concentration of at least 5% by weight produces a curable or cured composition with UV stabilized enzyme activity that can be used as a bioactive coating with improved stain removal properties.

Abstract: A process for preparing a functionalized polymer composition and a functionalized polymer composition. The process comprises the steps of providing a hydrocarbon resin, a polyolefin and a graft monomer, and dispersing the hydrocarbon resin in the polyolefin, followed by adding the graft monomer under shear to prepare the functionalized polymer composition. The polyolefin can comprise a polyethylene polymer or a C3 to C40 polymer having a molecular weight (Mw) of at least 20000.

Abstract: A molded fibrous basic magnesium sulfate filler-containing olefin polymer composition product is produced by a process comprising the steps of preparing a fibrous basic magnesium sulfate tiller-containing master batch composition which comprises an olefin polymer, a fibrous basic magnesium sulfate filler, an elastomer, a specific lubricant and a specific filler-surface treating agent; mixing the master batch composition and a propylene polymer-containing diluent resin; kneading the resulting mixture in a molten state; and molding the molten mixture to give the molded product.

Abstract: The present invention relates to a method of preparing a biodegradable polymer composition, said method comprising melt mixing a first biodegradable polyester and a masterbatch, wherein said masterbatch has been formed separately by melt mixing in the presence of a transesterification catalyst a polysaccharide, a second biodegradable polyester and a biodegradable polymer having pendant carboxylic acid groups.