Reclaimed rubber and process for reclaiming vulcanized rubber

Abstract

Reclaimed rubber having excellent performance is applied for reuse in tires or for asphalt, etc. The reclaimed rubber obtained by devulcanization treatment of vulcanized rubber from discard tires, etc. has a proportion of sol to gel: 10-80%, a weight-average molecular weight (Mw) of the sol by gel permeation chromatography (GPC): 20,000-300,000, and a degree of swelling of the gel: 3.0-20.0. A process for reclaiming the vulcanized rubber is also disclosed.

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