Recycling of self-sealing tyres
AssigneesDow Global Technologies LLC, Dow Silicones Corporation
InventorsLiangkai MA, Timothy MORLEY, Kyle ATKINS, Frederic GUBBELS, Joel CERVA, Francois DE BUYL, Thomas DAVIDIAN
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Abstract
The present disclosure generally relates to a method for recycling self-sealing tyres and the products resulting from the recycling process. The tyres in question comprise a tyre body having an inner surface and an outer surface and a puncture-resistant layer applied on the inner surface, wherein the puncture-resistant layer is a layer of a condensation cured self-sealing silicone sealant.
Claims15
A method of recycling one or more self-sealing tyres, the or each self-sealing tyre having a tyre body made of a flexible and airtight material and optionally containing one or more reinforcing wires, reinforcing fibres or both made from one or more of metals, polymers, and/or glass, the tyre body having an inner surface and an outer surface and a puncture-resistant layer applied on the inner surface, wherein the puncture-resistant layer is a layer of a condensation cured self-sealing silicone sealant, the method comprising the steps of:
- ai) removing the layer of condensation cured self-sealing silicone sealant by scraping it off the inner surface of the tyre body with a scraper, or
- aii) making a cut in the layer of condensation cured self-sealing silicone sealant, to form a first and second end thereof, attaching the first end of the layer of condensation cured self-sealing silicone sealant to a roller and removing the condensation cured self-sealing silicone sealant by peeling it from the inner surface of the tyre body;
- b) optionally, removing reinforcing wires, reinforcing fibres or both made from one or more of metals, polymers, and/or glass from the tyre body;
- c) recycling the tyre body resulting from step (ai), step (aii), or step (b) by shredding, grinding, cryogenic crushing, pyrolysis, and/or microwave techniques;
- and
- d) recycling or reusing the condensation cured self-sealing silicone sealant removed in step (ai) or step (aii).
Dependencies are inferred from the claim text.