Patent ID: 9120907
Filing Date: 2015-09-01
Classification: B01J,C08J,Y02W

Abstract:
1. A method for devulcanization of rubber feedstock, comprising: obtaining a vulcanized rubber feedstock provided with at least one predetermined photoactive substance, the substance comprising a scintillator or a luminescent substance configured to emit, in response to external radiation of a predetermined first wavelength, radiation of a second wavelength selected so as to initiate selective scission of intermolecular crosslinks in vulcanized rubber elastomers within an effective range thereof; and exposing the vulcanized rubber feedstock provided with said at least one photoactive substance to external, rubber-penetrating radiation of said first wavelength, said photoactive substance configured to emit, in response to said external radiation of first wavelength, radiation of a second wavelength selected so as to initiate a response reaction of selective scission of the intermolecular crosslinks in the vulcanized rubber elastomers, wherein the external radiation comprises or consists of x-rays.