Process for making derivatized polymers of maleic anhydride containing maleamic acid and its corresponding cyclic imide repeat units
US5869695A · kind A · utility
23Cited by
4References
12Claims
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Key dates
| Filing date | Apr 25, 1997 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Apr 25, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/32
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for making derivatized polymers of maleic anhydride containing maleamic acid and its corresponding cyclic imide repeat units, in alcohol solution, at a temperature of about 60.degree.-160.degree. C., during a reaction period of about 1-25 hours. The product is a polymer having a predetermined ratio of the above repeat units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.