The present invention relates to the use of nanocarbon (carbon nanotubes and/or carbon nanofibers) in the preparation of reinforced (filled) styrene-butadiene rubber (SBR). Furthermore, the present invention relates to a method of preparing reinforced SBR master batches having nanocarbon as reinforcing agent wherein the nanocarbon is uniformly predispersed within the SBR, as well reinforced rubber compositions containing said reinforced SBR which have nanocarbon and carbon black as reinforcing agents, and to uses thereof.

A high durability electrically conductive urethane foam acts as a variable resistor such that as the foam deflects, conductive particles get closer together, causing electrical resistance to decrease. The electrically conductive foam is further integrated into an automotive seat sensor system.

A modified asphalt binder with improved elastic properties and methods of making such modified asphalt binder. The modified asphalt binders may include one or more of an asphalt binder, a solvent deasphalted (SDA) pitch, a polymeric material, and optionally, a ground tire rubber. The disclosed modified asphalt binders exhibit properties consistent with decreased susceptibility to rutting and thus may be used in asphalt concrete applications.

A high durability electrically conductive urethane foam acts as a variable resistor such that as the foam deflects, conductive particles get closer together, causing electrical resistance to decrease. The electrically conductive foam is further integrated into an automotive seat sensor system.

A modified asphalt binder with improved elastic properties and methods of making such modified asphalt binder. The modified asphalt binders may include one or more of an asphalt binder, a solvent deasphalted (SDA) pitch, a polymeric material, and optionally, a ground tire rubber. The disclosed modified asphalt binders exhibit properties consistent with decreased susceptibility to rutting and thus may be used in asphalt concrete applications.

A sound-absorbing material block, a method for preparing the same and application thereof are provided. The sound-absorbing material block includes three-dimensional open-cell foam, sound-absorbing material powder, a binder, a gel, and a cross-linking agent. The sound-absorbing material powder is bonded to each other and connected to the three-dimensional open-cell foam by means of the gel, the cross-linking agent, and the binder, by mass of the sound-absorbing material powder, the gel accounts for 1 wt % to 5 wt % of the sound-absorbing material powder, and the binder accounts for 1 wt % to 8 wt % of the sound-absorbing material powder, and by mass of the gel, the cross-linking agent accounts for 1 wt % to 10 wt % of the gel. The sound-absorbing material block according to the present disclosure reduces an additive amount of the binder, and significantly improves sound-absorbing performance and strength of the material block.

Disclosed herein are compositions comprising an ionic crosslinking agent (e.g., compositions comprising crosslinked products prepared by ionically crosslinking a polymer derived from styrene and optionally butadiene using an ionic crosslinking agent). The present disclosure also relates to methods of making the disclosed compositions. The compositions disclosed herein can be used in a variety of applications including, but not limited to, asphalt compositions, paints, coatings, carpet compositions, paper binding and coating compositions, foams, or adhesives.

A rubber composition is provided. The rubber composition is based at least on an elastomer matrix comprising natural rubber and a functional diene elastomer, the functional diene elastomer bearing an SiOR function, R being hydrogen or a carbon-based group, the carbon black having a BET specific surface area of greater than 130 m.sup.2/g, the dispersion of the carbon black in the elastomer matrix having a Z value of greater than 80. The composition has an improved compromise between the hysteresis properties and the properties at break.

A wet mix elastomer composite comprising carbon black dispersed in an elastomer including a blend of a natural rubber and styrene-butadiene rubber. When the wet mix elastomer composite is processed with CTV Method 1, the vulcanized wet mix elastomer composite exhibits a resistivity that A) has a natural logarithm satisfying the equation ln(resistivity)0.1(loading)+x, where x is 14, or B) is at least 2.9 times greater than the resistivity of a vulcanized dry mix elastomer composite having the same composition and prepared using Comparative CTV Method 1.

Provided is a method for manufacturing a concrete pump cleaning foam. The method comprises: providing a mixture of a polymer containing an olefin block copolymer (OBC) having a DSC melting point of 100 C. or higher and a natural or synthetic rubber, a liquid softening agent, and one or more additives selected from the group consisting of a crosslinking agent, a foaming agent, a metal oxide, stearic acid, an antioxidant, zinc stearate, titanium dioxide, a crosslinking coagent, and a pigment; placing the mixture in a mold and pressurizing the mixture at elevated temperature to form a polymer foam; and after the foaming, polishing the surface of the polymer foam to separate closed cells into a surface.