Macromolecular antioxidants based on sterically hindered phenols and phosphites
US8242230B2 · kind B2 · utility
19Cited by
112References
5Claims
0Family size
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Key dates
| Filing date | May 17, 2011 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | May 17, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2261/1432
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Sterically hindered phenol and phosphite based compounds, represented by formula I:and their use as antioxidants in a wide range of materials including, but not limited to, food, plastics, elastomers, composites and petroleum based products is disclosed herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.