Devulcanized rubber and methods
AssigneeLiquefied Fossil Fuels Corporation
InventorsLiang-tseng Fan, Mohammad Reza Shafie
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Abstract
Vulcanized rubber is devulcanized by contacting the vulcanized rubber with a terpentine liquid in a reaction mixture in the absence of an alkali metal.
Claims19
A system for devulcanizing rubber, in which a vulcanized rubber having a sulfur content with sulfur cross-links is provided, and the vulcanized rubber is contacted with a devulcanizing agent in a reaction mixture, the devulcanizing agent being a turpentine liquid, wherein said turpentine liquid is present in the reaction mixture in an amount sufficient such that said turpentine liquid acts to substantially break said cross-links of said vulcanized rubber and wherein the action of said turpentine liquid results in substantial devulcanization of said vulcanized rubber.
Dependencies are inferred from the claim text.