Polymeric N-substituted maleimide antioxidants
US4205151A · kind A · utility
42Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1977 |
| Grant date | May 27, 1980 |
| Priority date | — |
| Expiry date | Aug 2, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11B5/0057
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
N-substituted maleimide polymers comprising the recurring structural units: ##STR1## wherein R and R' independently are lower alkyl groups of from 1 to 5 carbon atoms and n is an integer of from about 2 to about 2,000, are disclosed. Their preparation as well as the preparation of their monomer precursors and the preferred use of the polymers as antioxidants, particularly nonabsorbable food antioxidants, are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.