Process for the manufacture of aminoalkyl-phosponic acid esters
US4151229A · kind A · utility
5Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 2, 1975 |
| Grant date | Apr 24, 1979 |
| Priority date | — |
| Expiry date | May 2, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/657181
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for the manufacture of aminoalkyl-phosphonic acid esters by catalytic hydrogenation of cyanoalkylphosphonic acid esters. After having separated the catalyst and solvents, in general the crude product is distilled. The esters which can be obtained by the process of this invention are of importance as intermediate products, because all reactions of amines can be carried out with these products. They can also be used as additives for amine curing agents for epoxide resins in order to achieve flame-retarding properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.