The present invention is enclosed in the area of panels for structural and decorative surfaces, in particular panels containing polymer-based materials, suitable for the coating of surfaces, for example, and containing such polymer-based materials in the respective layers. The present invention may relate to the integration of polymer granules, recycled or unrecycled, being particularly relevant when the granules are obtained from end-of-life polymer-based materials, for instance obtained from car tires into the core of compact laminate boards. It is therefore an object of the present invention a composite panel (100) for structural and decorative surfaces wherein it comprises a core panel, the core panel (10) comprising a mixture of granules of a polymeric material and a bonding element (1), the bonding element providing for the bonding of the granules of a polymeric material.

An elastomer composition is provided, the composition comprising a polyolefin; crumb rubber; a peroxide; and a polyolefin grafted maleic anhydride. A method of forming the composition is also provided.

A thermoplastic copolymer is made by first de-vulcanizing a sulfur-crosslinked elastomeric material to produce a liquid phase component. The liquid phase component is subsequently mixed with a compatible thermoplastic polymer at a temperature above its melting point thereof, and the resulting mixture is cooled to produce a solid product.

A novel polymer mixture having fast drying time, a multilayer article comprising at least one layer of the dried polymer mixture and having good mechanical properties, and a method of preparing the multilayer article.

A green high viscosity toughness asphalt modifier includes following raw material components by weight: 70-232 parts of waste rubber and plastic mixture; 4-10 parts of nano-clay material; and 15-50 parts of compatilizer. A preparation method of the green high viscosity toughness asphalt modifier includes steps of (1) preparing masterbatch by a first melt blending extrusion, which includes weighing the nano-clay material, the waste rubber and plastic mixture and the compatilizer in accordance with a weight ratio of 1:(2-4):(1-2), mixing evenly at high speed, extruding and granulating for obtaining the masterbatch; and (2) performing a second melt blending extrusion, which includes mixing evenly the waste rubber and plastic mixture, the masterbatch obtained by the step (1) and the compatilizer with a weight ratio of (5-9):(1-5):(1-3) at high speed, extruding and granulating for obtaining the asphalt modifier.

A process for preparing a styrene-butadiene rubber includes micronized recycled rubber powder and includes the following steps: preparing a suspension having micronized recycled rubber powder, water and at least one surfactant; mixing the suspension from step (a) with at least one styrene-butadiene latex to obtain a styrene-butadiene latex having micronized recycled rubber powder; and subjecting the latex from step (b) to coagulation to obtain a coagulated styrene-butadiene rubber having micronized recycled rubber powder. In step (a), the particle size of the micronized recycled rubber powder ranges from 0.05 mm to 0.8 mm; the at least one surfactant is present in an amount ranging from 0.5% by weight to 3% by weight, with respect to total weight of the micronized recycled rubber powder; and the micronized recycled rubber powder has a concentration in water ranging from 1% by weight to 50% by weight, with respect to the total weight of the water.