Process for decomposing vulcanized rubber
AssigneeBridgestone Tire Company Limited
InventorsYoji Watabe, Hideo Takeichi, Koichi Irako
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Abstract
A process for decomposing vulcanized rubber which comprises swelling 100 parts by weight of vulcanized rubber with 10-3000 parts by weight of an organic solution, and adding and mixing 0.1-20 parts by weight of an organic hydroperoxide (a) and of 0.001-1 mole equivalent per said (a) of at least one member (b) selected from the group consisting of copper salts, cobalt salts, and strongly alkaline compounds.
Claims5
A process for decomposing particles of compounded rubber which comprises swelling 100 parts by weight of the particulate rubber with 10-3000 parts by weight of an organic solvent for vulcanized rubber, and adding and mixing 0.1-20 parts by weight of an organic hydroperoxide (a) and 0.001-1 mol equivalent per said (a) of at least one strongly alkaline compound (b) selected from the group consisting of lithium hydroxide, sodium hydroxide, potassium hydroxide, and 1,8-diazabicyclo[5,4,0] undecene-7 and salts thereof, the decomposition being carried out at from 0.degree. to 100.degree. C.
Dependencies are inferred from the claim text.