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US 5,672,630 AGranted
Process for producing reclaimed rubber or unvulcanized reclaimed rubber
AssigneeKabushiki Kaisha Toyota Chuo Kenkyusho
InventorsMakoto Mouri, Arimitsu Usuki, Norio Sato
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Abstract
A process for producing reclaimed rubber has the steps of: mixing waste vulcanized rubber with unvulcanized new rubber and a devulcanizing agent; and kneading the resulting mixture in a heating atmosphere for mastication of the unvulcanized new rubber and simultaneously reclamation of the waste vulcanized rubber. Furthermore, the obtained unvulcanized reclaimed rubber can be vulcanized with a vulcanizing agent.
Claims16
A process for producing unvulcanized reclaimed rubber, comprising the steps of:
- mixing a minor amount of waste vulcanized rubber with a major amount of unvulcanized new rubber, and a chemical devulcanizing agent;
- and
- kneading the resulting mixture in a heating atmosphere, thereby performing mastication of the unvulcanized new rubber and reclamation of the waste vulcanized rubber simultaneously to obtain unvulcanized reclaimed rubber.
A process for producing reclaimed rubber, comprising the steps of:
- mixing a minor amount of waste vulcanized rubber with a major amount of unvulvanized new rubber, and a chemical devulcanizing agent;
- kneading the resulting mixture in a heating atmosphere to obtain unvulcanized reclaimed rubber;
- and
- subsequently vulcanizing the unvulcanized reclaimed rubber with a vulcanizing agent to obtain reclaimed rubber.
1 more element
Dependencies are inferred from the claim text.