Recovery of components from polyester resins
US5576456A · kind A · utility
9Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1996 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | Jan 22, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/03
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There is described a process for the depolymerization of polyethylene terephthalate into component monomers using a reactor in which the polyethylene terephthalate is a discontinuous phase which contacts a continuous phase of superheated methanol vapor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.