Process for production of a polysuccinimide and derivatives thereof
US5681920A · kind A · utility
3Cited by
17References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1994 |
| Grant date | Oct 28, 1997 |
| Priority date | — |
| Expiry date | Jun 28, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/1092
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polysuccinimide is produced by thermal polymerization of a precursor or a reactant admixture that includes an unsaturated compound in a plate-type reactor at temperatures sufficient to initiate polymerization and to form a brittle solid. The so-obtained polysuccinimide can be hydrolyzed to polyaspartic acidor to a polyaspartic acid salt, if desired. The precursor can be a monomer or a mixture of reactants that form polymerizable intermediates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.