Dimethyl terephthalate composition and process for producing the same
US7078440B2 · kind B2 · utility
6Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2001 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Feb 13, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A dimethyl terephthalate composition includes 0.001 to 200 ppm of methyl 4-(1,3-dioxolan-2-yl)benzoate and 0 to 1 ppm of dimethyl hydroxyterephthalate contained in dimethyl terephthalate, and exhibits improved properties as a material for producing polyester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.