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1. (WO2018125987) METHOD OF RECYCLING RUBBER

Pub. No.:    WO/2018/125987    International Application No.:    PCT/US2017/068681
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Fri Dec 29 00:59:59 CET 2017
IPC: C08J 11/06
C08J 11/14
C08J 11/28
C08J 3/12
C08J 3/20
C08J 3/24
Applicants: APPIA, LLC
Inventors: BOHM, Georg
Title: METHOD OF RECYCLING RUBBER
Abstract:
A method of recycling rubber includes pre-treating vulcanized ground rubber to prevent the vulcanized ground rubber from encountering significant additional crosslinking during co-vulcanization with fresh rubber compound, and promoting better bonding between the vulcanized ground rubber and the fresh rubber compound. The ground vulcanized rubber can be coated with a layer of non-vulcanized rubber that includes cure inhibitors or other ingredients dispersed within the layer to aid in the coating process and/or co- vulcanization of the vulcanized ground rubber and fresh rubber compound. The vulcanized ground rubber can also be pre-treated with a mixture of at least one chemical curing agent inhibitor and a solvent capable of solubilizing the chemical curing agent inhibitor and dispersing the curing agent inhibitor within the vulcanized ground rubber.