Abstract: Composition comprising at least one vinyl halide polymer and 0.1 to 5% by weight, relative to the weight of the vinyl halide polymer, of at least one polymer of at least one acrylic ester obtained by polymerization in solution in a liquid medium comprising at least one chain transfer agent chosen among the C3-C20 hydrocarbons containing at least one secondary alcohol function. Process for its manufacture, article obtained starting from this composition and use of this composition for manufacturing sheets and films via calendaring or for manufacturing profiles by extrusion. Process for the manufacture of a polymer of at least one acrylic ester which can be used in the composition.

Abstract: A rubber composition for a tire tread of the present technology comprises a rubber component containing not less than 30 mass % of a conjugated diene-based rubber (A), a silica (B), and a predetermined alkyltriethoxysilane (C), the conjugated diene-based rubber (A) containing not less than 5 mass % of a specified structural member (a), the silica (B) having a nitrogen adsorption specific surface area (N2SA) from 194 to 225 m2/g and a CTAB adsorption specific surface area (CTAB) from 180 to 210 m2/g, a content of the silica (B) being from 60 to 150 parts by mass per 100 parts by mass of the rubber component, and a content of the alkyltriethoxysilane (C) being from 2.5 to 8.0 mass % relative to the silica (B).

Abstract: The present invention provides hot melt adhesives for disposable products. The hot melt adhesives may be applied at high-speed and at low temperature ranges. The hot melt adhesives also provide excellent adhesion to polyethylene and a nonwoven fabric. The hot melt adhesive comprises (A) a thermoplastic block copolymer, which is a copolymer of a vinyl-based aromatic hydrocarbon with a conjugated diene compound; and (B) a propylene homopolymer having a melting point of 100° C. or lower, which is obtainable by polymerizing propylene using a metallocene catalyst. The disposable products are produced at high-speeds and low temperature with the inventive hot melt, and therefore, the disposal products are produced efficiently and safely, and a nonwoven fabric and a polyethylene film of the disposable products are less likely to peel.

Abstract: A method to manufacture composite fibers of rice husk and charcoal includes the following steps. Heat and grind the rice husk and the charcoal and blend with PET to form first granules and second granules respectively wherein mass fractions of rice husk and charcoal are 15-20 wt %. The mass fraction of rice husk in the first granules and that of the charcoal in the second granules are equal. Blend the first granules and the second granules to form mixed granules. Blend and melt the mixed granules and PET to form a mixture wherein the summation of the mass fractions of rice husk and charcoal in the mixture is 0.2-2 wt %. Form composite fibers from the melted mixture by a procedure of filament making.

Abstract: A composite polymer solution comprising a homogeneous mixture of a first polymer solution comprising a first polymer having a structure derived from the reaction of one or more amine monomers and a plurality of acid monomers, wherein i) the one or more amine monomers includes at least 60 mole percent 5(6)-amino-2-(p-aminophenyl)benzimidazole; and ii) the plurality of acid monomers include those having a structure of Cl—CO—Ar1—CO—Cl and Cl—CO—Ar2—CO—Cl wherein Ar1 is a para-oriented aromatic group and Ar2 is a meta-oriented aromatic group, and wherein the plurality of acid monomers has at least 50 mole percent of the monomer containing Ar2; and a second polymer solution comprising a second polymer having a structure derived from the reaction of metaphenylene diamine and isophthaloyl chloride.

Abstract: Provided is a resin acid ester-based tackifier having a good compatibility with a synthetic rubber elastomer, being capable of reducing the melt viscosity of the elastomer, and being capable of imparting excellent adhesive properties and/or pressure-sensitive adhesive properties to the elastomer.

Abstract: A dual reactor solution process gives high density polyethylene compositions containing a first ethylene copolymer and a second ethylene copolymer and which have good processability and ESCR properties. The polyethylene compositions are suitable for compression molding or injection molding applications and are particularly useful in the manufacture of caps and closures for bottles or containers.

Abstract: A polypropylene resin composition, particularly, an olefin-based polypropylene resin composition includes: about 50 to 70% by weight of a high crystalline polypropylene; about 10 to 20% by weight of a reactor made thermoplastic polyolefin (RTPO) polypropylene; about 5 to 20% by weight of an inorganic filler; about 10 to 20% by weight of a rubber elastomer; and about 3% by weight or less of a slip agent, based on the total weight of the composition. The composition provides excellent physical properties such as high strength and impact resistance, and thus superior resistance to damage, and shows low gloss characteristics and excellent fluidity. The polypropylene resin composition is used as interior and exterior materials for vehicles.

Abstract: A hot melt adhesive useful in high-speed coating and spiral coating at low temperature for adhering a polyolefin film to a nonwoven fabric and disposable products obtained by the same are provided. The hot melt adhesive comprises: (A) a thermoplastic block copolymer which is a copolymer of a vinyl-based aromatic hydrocarbon with a conjugated diene compound; (B) a propylene homopolymer having a melting point of 100° C. or lower which is obtainable by polymerizing propylene using a metallocene catalyst; and (C) an ethylene/?-olefin copolymer. The hot melt adhesive is excellent in high-speed coating and spiral coating at low temperature, and also provides excellent adhesion to a polyolefin film and a nonwoven fabric.

Abstract: The invention relates to pneumatic tires with ribbed rubber treads which may be, for example pneumatic tires such as bus tires and truck tires. The rubber treads are comprised of a blend of specialized cis 1,4-polybutadiene rubber and cis 1,4-polyisoprene rubber containing reinforcing filler comprised of a combination of rubber reinforcing carbon black and precipitated silica together with silica coupler, wherein the tread rubber contains a cure package comprised of sulfur together with two sulfenamide primary sulfur cure accelerators.

Abstract: A silica-containing rubber mixture includes at least one rubber, a sulphur-containing alkoxysilane, a crosslinking agent, a filler, and optionally further rubber auxiliaries, and the mixture also includes from 0.1 to 15 parts by weight, based on 100 parts by weight of rubber used, of a silicon-free polysulphide additive of the formula (I) A-S—(S)x—S—Y—S—(S)x—S-A??(I) where x is 0, 1 or 2, Y is an optionally substituted or heteroatom-containing aliphatic, cycloaliphatic or aromatic group, and A may include hydroxy, carboxy, or carboxyphenyl groups.

Abstract: The present invention provides shelf stable redispersible multilayer polymer particles (RDPs) comprising a major proportion of epoxy resins, a methacrylic acid or anhydride containing alkali soluble polymer outer layer and a hydrophobic chain transfer agent or a high glass transition temperature colloidal stabilizer, such as poly(vinyl pyrrolidinone) or its copolymer, as well as to methods of making the same.

Abstract: The present invention relates to low density polypropylene compositions for the production of molded articles, such as finished parts for the automotive industry.

Abstract: A high-transparent, thermoplastically processable polymer composition is described. In an exemplary embodiment, the polymer composition includes an acrylate organic polymer. The acrylate organic polymer is a copolymer that can include functional groups of hydrocarbon group up to nine carbon atoms, hydroalkyl group, halogenated hydrocarbon groups, aminoalkyl group, aryl group, cycloalkyl group, and/or a combination thereof. The polymer composition may further include a polysilicon compound, polycarbonate polymer, a polyvinyl polymer, a plasticizer, and/or a combination thereof.

Abstract: A methodology for producing modified nanoclays which, when added to an elastomer, provide elastomeric nanocomposites with improved ageing, rheological and mechanical properties, and which can be devoid of, or containing low amount of, a filler such as carbon black, is provided. The modified nanoclays are made of a nanoclay, such as an organomodified nanoclay, modified so as to be in association with an amine-containing antioxidant and optionally also with a silyl-containing compound, such as mercaptosiloxane. Also provided are processes of preparing the modified nanoclays, elastomeric composites containing same and articles containing the elastomeric composites.

Abstract: Disclosed is a method of preparing a vinyl chloride based resin by suspension polymerization to prevent foaming by slowly elevating reaction temperature such that pressure is maintained when pressure drops in a late stage of reaction. According to the method, the vinyl chloride based resin is prepared using suspension polymerizing vinyl chloride based monomers so as to reduce foaming and improve a protrusion, thermal stability and the like.

Abstract: A formulation of material includes a polymeric material, a nucleating agent, and a surface active agent. The formulation of material may be polymeric materials that relate morphology and crystalline structure of cellular polymeric material that may be used to form usable articles, such as an insulated container useful for containing food or liquid.

Abstract: There is provided a novel material used for solar cells that can contribute to the improvement in maximum output of solar cells. A film-forming material for forming a light-collecting film on a transparent electrode of a solar cell, including an aromatic group-containing organic polymer compound (A), wherein the film-forming material exhibits an index of refraction of 1.5 to 2.0 at a wavelength of 633 nm and a transmittance of 95% or more with respect to light having a wavelength of 400 nm, and a solar cell obtained by coating a cured film made from the film-forming material on a surface of a transparent electrode.

Abstract: The invention relates to the use of at least one comb polymer which includes side chains which have at least one cationic group, and does not include side chains having polyether groups, and which has a main chain which has carboxyl groups, as dispersant for hydraulically settable compositions. The invention also relates to hydraulically settable cement compositions, moldings, comb polymers and method for producing comb polymers.

Abstract: Polymers may be functionalzed with terminal groups, where the terminal groups have, at the chain end, an ether-containing carbinol group of the formula (I) O-A-OH]??(I) where A is a divalent organic moiety which can comprise not only C and H but also heteroatoms, such as O, N, S, Si.