Preparation of linear polyethylenepolyamines with an aluminum phosphate catalyst
US4448997A · kind A · utility
21Cited by
7References
8Claims
0Family size
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Key dates
| Filing date | Dec 27, 1982 |
| Grant date | May 15, 1984 |
| Priority date | — |
| Expiry date | Dec 27, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method of preparing predominantly linear polyethylenepolyamines from ethylenediamine and monoethanolamine reactants with an aluminum phosphate catalyst prepared from alumina, phosphoric acid, ammonium hydroxide and water is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.