Embodiments described herein relate generally to systems and methods for manufacturing a master batch with a graphitic material dispersed in a polymer matrix. In some embodiments, a method for manufacturing the master batch can include combining the graphitic material with a polymer, adding a supercritical fluid to the mixture, and depressurizing the supercritical fluid to remove the supercritical fluid. In some embodiments, the method includes mixing the graphitic material and the polymer for a first time period to form a first mixture and transferring the supercritical fluid to the first mixture to form a second mixture. In some embodiments, the method includes mixing the second mixture for a second time period and depressurizing the second mixture to allow the supercritical fluid to transition to a gas phase.

A rubber composition for a tire according to an embodiment of the present technology includes: 100 parts by mass of a diene rubber and from 1 to 30 parts by mass of a thermally expandable microcapsule composite body, and the thermally expandable microcapsule composite body contains one or more thermally expandable microcapsules and an acrylonitrile butadiene copolymer and/or a crosslinked body thereof covering the one or more thermally expandable microcapsules.

A rubber composition for a tire according to an embodiment of the present technology includes: 100 parts by mass of a diene rubber and from 1 to 30 parts by mass of a thermally expandable microcapsule composite body, and the thermally expandable microcapsule composite body contains one or more thermally expandable microcapsules and an acrylonitrile butadiene copolymer and/or a crosslinked body thereof covering the one or more thermally expandable microcapsules.

Crumb rubber obtained from recycled tires is subjected to an interlinked substitution process. The process utilizes a reactive component that interferes with sulfur bonds. The resulting treated rubber exhibits properties similar to those of the virgin composite rubber structure prior to being granulated, and is suitable for use in fabricating new tires, engineered rubber articles, and asphalt rubber for use in waterproofing and paving applications.

Crumb rubber obtained from recycled tires is subjected to an interlinked substitution process. The process utilizes a reactive component that interferes with sulfur bonds. The resulting treated rubber exhibits properties similar to those of the virgin composite rubber structure prior to being granulated, and is suitable for use in fabricating new tires, engineered rubber articles, and asphalt rubber for use in waterproofing and paving applications.

Solid microcapsules are prepared by adding, with stirring, a composition having at least one active ingredient to a photocrosslinkable polymeric composition to obtain an emulsion, and adding the emulsion, with stirring, to a viscous composition. The viscosity of the viscous composition is greater than 2000 mPa.Math.s at 25 C. A double emulsion is obtained, to which shear is applied at a rate less than 1000 s.sup.1, to obtain a sheared emulsion. Polymerization of the sheared emulsion is accomplished by photopolymerization.

Solid microcapsules are prepared by adding, with stirring, a composition having at least one active ingredient to a photocrosslinkable polymeric composition to obtain an emulsion, and adding the emulsion, with stirring, to a viscous composition. The viscosity of the viscous composition is greater than 2000 mPa.Math.s at 25 C. A double emulsion is obtained, to which shear is applied at a rate less than 1000 s.sup.1, to obtain a sheared emulsion. Polymerization of the sheared emulsion is accomplished by photopolymerization.

A coating composition that includes: (a) core-shell particles having a polymeric core at least partially encapsulated by a polymeric shell; (b) an ethylenically unsaturated rubber polymer; and (c) an adhesion promoter including at least one polymer that is different from (a) and (b). The polymeric shell of (a) includes: (i) a barrier segment having aromatic groups; and urethane linkages, urea linkages, or a combination thereof; and (ii) an elastomeric segment that is different from (i), in which the polymeric shell is covalently bonded to at least a portion of the polymeric core. Further, the ethylenically unsaturated rubber polymer is: (i) a polymeric particle dispersed in an aqueous medium that is different from (a); or (ii) covalently bonded to the shell of the core-shell particles of (a) and forms at least a portion of the polymeric core.

Crumb rubber obtained from recycled tires is subjected to an interlinked substitution process. The process utilizes a reactive component that interferes with sulfur bonds. The resulting treated rubber exhibits properties similar to those of the virgin composite rubber structure prior to being granulated, and is suitable for use in fabricating new tires, engineered rubber articles, and asphalt rubber for use in waterproofing and paving applications.

Crumb rubber obtained from recycled tires is subjected to an interlinked substitution process. The process utilizes a reactive component that interferes with sulfur bonds. The resulting treated rubber exhibits properties similar to those of the virgin composite rubber structure prior to being granulated, and is suitable for use in fabricating new tires, engineered rubber articles, and asphalt rubber for use in waterproofing and paving applications.