Hydroxyamino-derivatized polymers of olefin-maleic anhydride in the form of their maleimide maleamic acid and .alpha.- olefin-maleic anhydride half-acid/half ester or full acid repeat units process for making same
US5886194A · kind A · utility
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1References
16Claims
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Key dates
| Filing date | Jun 24, 1998 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Jun 24, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/32
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention describes hydroxyamino-derivatized polymers of .alpha.-olefin-maleic anhydride in the form of their maleimide, maleamic acid and .alpha.-olefin-maleic anhydride half-acid/half ester or full acid repeat units process for making same. The polymers are made by reacting an .alpha.-olefin-maleic anhydride, half-acid/half-ester or full acid with a hydroxy containing .alpha.-unsubstituted primary amine in aqueous or aqueous alcoholic solution at a temperature of about 60.degree.-160.degree. C. during a reaction period of about 1-25 hours.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.