Provided is a thermoplastic resin composition which contains three components, i.e., a polyethylene, a polyamide and a compatibilizer and is excellent in impact resistance while realizing a reduction in environmental load, and a modifier capable of imparting impact resistance to a polyethylene. The composition and the modifier each contain a polyethylene, a polyamide and a compatibilizer. The compatibilizer is a modified elastomer having a reactive group that reacts with the polyamide, and the polyethylene and the polyamide have a bio-based carbon content rate of 80% or more according to ISO 16620-2.

A continuous process for making a pressure-sensitive adhesive is disclosed. A mixture comprising natural rubber having a Mooney viscosity of 85 to 100, a tackifier, a filler, and 0.1 to 5 wt. % of an added C.sub.12-C.sub.24 fatty acid based on the amount of mixture is masticated in a first section of a single- or twin-screw extruder. Mastication of the mixture continues in at least one subsequent extruder section in the presence of additional tackifier. The product is a homogeneous, reduced-viscosity pressure-sensitive adhesive. The minor proportion of added C.sub.12-C.sub.24 fatty acid aids mastication of the rubber and enables high throughput without addition of peptizers. Duct tapes made from the adhesives display improved adhesion to steel, better adhesion bond strength, and enhanced seven-day clean removability from even difficult substrates such as marble or ceramic tile.

The disclosed embodiments describe a novel approach to the utilization of the fine mineral matter derived from coal and/or coal refuse (a by-product of coal refining) to convert a non-biodegradable plastic into a biodegradable plastic. The fine mineral matter could also be based on volcanic basalt, glacial rock dust deposits, iron potassium silicate and other sea shore mined deposits. The conversion of the non-biodegradable plastic into biodegradable plastic in soil further increases nutrients availability in soil with the transition metals released as a result of biodegradation of the biodegradable plastic.

A method for manufacturing a closure constructed for being inserted and securely retained in a portal-forming neck of a product-retaining container is provided. Such method may include intimately combining a plurality of particles comprising cork and having a specified particle size distribution with a plastic material including one or more thermoplastic polymers, optionally in combination with other constituent(s) to form a composition, heating the composition to form a melt, extruding or molding a closure precursor from the melt to provide a specified water content range, and optionally cutting and/or finishing the closure precursor. A composition for use in manufacturing a closure for a product-retaining container includes a plurality of particles comprising cork and having a specified particle size distribution with a plastic material including one or more thermoplastic polymer, optionally in combination with other constituent(s). Methods for producing particulate material, cork composite material, additional methods for producing closures, and resulting closures are also provided.

A method for producing molding compounds, at least including a binder and a softener, the binder and the softener being in the form of plastisols, the plastisol being essentially composed of PVC and softener, the method of production has the following steps: in a first step, mixing the PVC powder and the amount of softener with optionally other admixtures and/or additives and carrying out the mixing process at a mixing temperature of approximately 55 to 70° C.

A cellulose-fiber-dispersing polyolefin resin composite material, containing a polyolefin resin containing a polypropylene resin, and a cellulose fiber dispersed in the polyolefin resin, in which a proportion of the cellulose fiber is 1 mass part or more and 70 mass parts or less in a total content of 100 mass parts of the polyolefin resin and the cellulose fiber, and the polyolefin resin satisfies the expression: Mz/Mw≥4, which is a ratio of Z-average molecular weight Mz to weight-average molecular weight Mw to be obtained by a gel permeation chromatography measurement; a pellet or a formed body using this composite material; and a production method for the composite material.

The presently disclosed subject matter generally relates to environmentally friendly asphalt binder additive.

A tire is provided with an external sidewall, said external sidewall comprising at least one elastomeric composition based on: (a) an elastomeric matrix comprising at least one diene elastomer, (b) a crosslinking system, and (c) at least one polymer incompatible with the elastomeric matrix. A process for the preparation of an elastomeric composition for an external sidewall is also disclosed.

Provided is a method for producing a rubber composition containing: a rubber component (A) including at least 50 mass % of a styrene-butadiene copolymer rubber; a filler (B) including 80-130 parts by mass of silica; a silane coupling agent (C); a thermoplastic resin (D); at least one compound (E) selected from guanidines, sulfenamides, and thiazoles; an organic acid compound (F); and a vulcanizing agent (G). The method includes kneading the rubber composition over a plurality of stages. The kneading includes: a first kneading stage of kneading the rubber component (A), the filler (B), the silane coupling agent (C), the thermoplastic resin (D), all or some of the compound (E), and all or some of the organic acid compound (F); and a second kneading stage of, after the first kneading stage, kneading the vulcanizing agent (G) and a kneaded product prepared through kneading in the first kneading stage.

Provided is a method for producing a rubber composition containing: a rubber component (A) including at least 50 mass % of a styrene-butadiene copolymer rubber; a filler (B) including 80-130 parts by mass of silica; a silane coupling agent (C); a thermoplastic resin (D); at least one compound (E) selected from guanidines, sulfenamides, and thiazoles; an organic acid compound (F); and a vulcanizing agent (G). The method includes kneading the rubber composition over a plurality of stages. The kneading includes: a first kneading stage of kneading the rubber component (A), the filler (B), the silane coupling agent (C), the thermoplastic resin (D), all or some of the compound (E), and all or some of the organic acid compound (F); and a second kneading stage of, after the first kneading stage, kneading the vulcanizing agent (G) and a kneaded product prepared through kneading in the first kneading stage.