Recycled elements and/or renewable resources, such as recycled carbon black or recycled carbon black and recycled particulate rubber, are incorporated into a rubber composition. The rubber composition can be used to manufacture tires or various tire components including tire subtreads.

Recycled elements and/or renewable resources, such as recycled carbon black or recycled carbon black and recycled particulate rubber, are incorporated into a rubber composition. The rubber composition can be used to manufacture tires or various tire components including tire subtreads.

This invention encompasses rubber modified asphalt cement compositions, as well as systems, apparatuses, methods for preparing, as well as methods for using rubber-modified asphalt cement compositions.

The invention relates to a process for devulcanizing a vulcanized rubber mixture, comprising the following steps: A) providing or producing a vulcanized rubber mixture, B) comminuting the vulcanized rubber mixture into a granulate of vulcanized rubber particles, C) extruding the vulcanized rubber particles produced in step B) in a twin-screw extruder to form a devulcanized rubber mixture, wherein, during the extruding in step C) at least one regeneration reagent is added to the extruded rubber particles, wherein the regeneration reagent comprises at least one silane, at least one plasticizer, at least one aging stabilizer or mixtures thereof. The invention also comprises an apparatus for performing the method and the uses of the apparatus, and a rubber mixture and also a pneumatic vehicle tyre or a technical rubber article comprising a component composed of the rubber mixture.

The invention relates to a process for devulcanizing a vulcanized rubber mixture, comprising the following steps: A) providing or producing a vulcanized rubber mixture, B) comminuting the vulcanized rubber mixture into a granulate of vulcanized rubber particles, C) extruding the vulcanized rubber particles produced in step B) in a twin-screw extruder to form a devulcanized rubber mixture, wherein, during the extruding in step C) at least one regeneration reagent is added to the extruded rubber particles, wherein the regeneration reagent comprises at least one silane, at least one plasticizer, at least one aging stabilizer or mixtures thereof. The invention also comprises an apparatus for performing the method and the uses of the apparatus, and a rubber mixture and also a pneumatic vehicle tyre or a technical rubber article comprising a component composed of the rubber mixture.

A novel polymer mixture having fast drying time, and good tensile strength and elongation at break properties, a multilayer article comprising a base layer made from the polymer mixture and a top layer, and a method of preparing the multilayer article.

A novel polymer mixture having fast drying time, and good tensile strength and elongation at break properties, a multilayer article comprising a base layer made from the polymer mixture and a top layer, and a method of preparing the multilayer article.

A method and system for generating a modified and enhanced dissolved tire rubber bitumen compound are described. The method includes receiving an rapid digestion process (“RDP”) compound, a bitumen compound, and a sulfur cross-linking agent. First heating the RDP compound, the bitumen compound, and the sulfur cross-linking agent to 320° F. to 420° F. with mixing for 3 to 5 hours. The method then proceeds to add SBC to the RDP compound, the bitumen compound, and the sulfur cross-linking agent. The RDP compound, the bitumen compound, the sulfur cross-linking agent, and the SBC are second heated to 320° F. to 420° F. with mixing for 15 minutes to 120 minutes.

A method and system for generating a modified and enhanced dissolved tire rubber bitumen compound are described. The method includes receiving an rapid digestion process (“RDP”) compound, a bitumen compound, and a sulfur cross-linking agent. First heating the RDP compound, the bitumen compound, and the sulfur cross-linking agent to 320° F. to 420° F. with mixing for 3 to 5 hours. The method then proceeds to add SBC to the RDP compound, the bitumen compound, and the sulfur cross-linking agent. The RDP compound, the bitumen compound, the sulfur cross-linking agent, and the SBC are second heated to 320° F. to 420° F. with mixing for 15 minutes to 120 minutes.

A method and system for generating a rapid digestion process (“RDP”) product are described. The method includes receiving a bitumen compound and first heating the bitumen compound to 320° F. to 420° F. The method then proceeds to add tire rubber to the bitumen compound. The bitumen compound and the tire rubber are mixed for 5 minutes to 360 minutes during a second heating to 525° F. to 700° F. Further, sulfur is added to the mixture of tire rubber and bitumen compound. These steps generate the RDP product. The RDP product is then cooled for transfer to a storage vessel.