Preparation of aminomethanols
US4395311A · kind A · utility
4Cited by
10References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1981 |
| Grant date | Jul 26, 1983 |
| Priority date | — |
| Expiry date | Nov 30, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C215/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Crude aminomethanols are converted to salt form by the addition of a strong acid and subsequently distilled under vacuum. The resulting purified aminomethanol is essentially free of unreacted aldehydes and other volatile impurities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.