SYSTEMS AND METHODS FOR RECYCLING RUBBER WASTE INTO SURFACE-MODIFIED DEVULCANIZED RUBBER OR AN END-OF-LIFE TIRE (ELT) COMPOUND
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United States of America
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Apr 3, 2025
app pub date -
Sep 27, 2024
filing date -
Sep 27, 2024
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Abstract
A system and a method for producing a surface devulcanized crumb rubber from vulcanized crumb rubber. The method comprising applying a dose of microwave energy to micronized vulcanized crumb rubber sufficient to sever sulfidic cross-links in the surface of the micronized vulcanized rubber crumb to produce a devulcanized crumb rubber. In aspects, the method relates to a method for producing an end-of-life tire compound from vulcanized crumb rubber comprising obtaining a surface devulcanized crumb rubber; mixing the surface devulcanized crumb rubber with a plastic polymer and/or an oil to form a devulcanized rubber mixture; and extruding the mixture through an extruder to produce the end-of-life tire compound.
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