Biobased polyesters
US8415496B2 · kind B2 · utility
2Cited by
48References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2010 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Mar 10, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to polyesters prepared from benzene, cyclohexene and cyclohexane compounds having carboxylic acid groups at the 1 and 4, and optionally the 2, positions, such as terephthalic acid or dimethyl terephthalates, and alkylene glycols, such ethylene glycol or 1,4-butane diol. The invention also relates to processes for preparing such polyesters. The invention also relates to such polyesters derived from starting materials derived from renewable resources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.