Cleavage of polyethylene glycol ethers by hydrolysis
US4806658A · kind A · utility
5Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1982 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | Nov 15, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D319/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
High molecular weight polyethylene glycol monoethers are cleaved to prepare lower oligomeric reaction products by contacting a mixture of the high molecular weight polyethylene glycol monoether and water with a hydrolytic cleavage catalyst such as alumina at elevated temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.