Macromolecular antioxidants based on sterically hindered phenols and phosphites
US7956153B2 · kind B2 · utility
21Cited by
109References
2Claims
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Key dates
| Filing date | May 28, 2010 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | May 28, 2030 |
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 structural formula II: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.