Recycling of articles comprising hydroxy-phenoxyether polymers
US6528546B2 · kind B2 · utility
24Cited by
16References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2000 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Dec 20, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/918
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed are methods of recycling the components of composite articles and materials comprising hydroxy-phenoxyether polymers to facilitate reuse of such components. The recycling methods comprise dissolution of the hydroxy-phenoxyether polymer in an acidic solution which is separated from the other components which formed the composite article or material. The hydroxy-phenoxyether polymers may be reused as the acidic solution, or they may be precipitated by addition of a base prior to reuse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.