Acidolysis process
US4011199A · kind A · utility
12Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1975 |
| Grant date | Mar 8, 1977 |
| Priority date | — |
| Expiry date | Nov 28, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/6826
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is an acidolysis process for preparation of terephthalate, isophthalate, hydroquinone type polyesters wherein the acidolysis process is conducted within a critical temperature range. Use of the critical temperature range provides a polyester with a low enough apparent melt viscosity to be prepared in commercial, gravity flow reactors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.