Macromolecular antioxidants based on sterically hindered phenols and phosphites
US7705176B2 · kind B2 · utility
36Cited by
104References
2Claims
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Key dates
| Filing date | Oct 27, 2006 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Jul 9, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/527
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Sterically hindered phenol and phosphite based compounds, represented by a formula selected from I-III: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.