Bio-based MEG and polyester compositions and methods of making the same
US11352463B2 · kind B2 · utility
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Key dates
| Filing date | Nov 9, 2017 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Nov 9, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2390/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are bio-based mono-ethylene glycol (MEG) compositions containing from about 1 ppm to about 5000 ppm of at least one C3-C12 1,2-diol, bio-based polyester compositions made therefrom, and methods of making the same are disclosed. Preforms and blow-molded polyester containers prepared from the bio-based MEG and polyester are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.