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US 2011/0178191 A1Published application
Devulcanization of Rubber and Other Elastomers
AssigneeVertex, Inc.
InventorMichel Marc
Life of this patent
Estimating the term…
Abstract
A process for devulcanizing crosslinked elastomer particles comprising applying an alternating radio frequency dielectric field to a composition comprising crosslinked elastomer particles. The alternating radio frequency dielectric field preferably has a frequency between 1 and 100 MHz and a voltage between 1000 and 10,000 V.
Claims25
A process for devulcanizing crosslinked elastomer particles comprising:
- providing a composition comprising vulcanized crosslinked elastomeric particles in a devulcanization apparatus;
- and
- applying an alternating radio frequency dielectric field to said composition comprising said vulcanized crosslinked elastomer particles, said alternating radio frequency dielectric field having a frequency and voltage sufficient to devulcanize said crosslinked elastomer particles.
A process for forming a vulcanized elastomer composition comprising:
- applying an alternating radio frequency dielectric field to a first composition comprising vulcanized crosslinked elastomer particles, said alternating radio frequency dielectric field having a frequency and voltage sufficient to devulcanize said crosslinked elastomer particles to form a second composition comprising devulcanized elastomer particles;
- adding a crosslinking agent to said second composition comprising said devulcanized elastomer particles;
- vulcanizing said second composition having said crosslinking agent to form said vulcanized elastomer composition.
Dependencies are inferred from the claim text.