Method for preparing telechelic oligomers from tire waste
US8962765B2 · kind B2 · utility
1Cited by
2References
13Claims
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Key dates
| Filing date | Feb 19, 2010 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Oct 19, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/938
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for manufacturing a composition including telechelic oligomers the ends of which carry reactive functions, the method including the contacting of at least one waste material containing rubber, preferable tire waste, with a chemical degradation agent selected from cleavage agents that are specific for double bonds; and a transfer agent in the presence of a catalysts; at a temperature from 15 to 400° C., preferably from 17 to 35° C.; at ambient pressure. The composition of oligomers that can be prepared by the method is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.