Stabilizer systems of triarylphosphites and phenols
US4360617A · kind A · utility
37Cited by
21References
10Claims
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Assignee
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Key dates
| Filing date | Feb 23, 1981 |
| Grant date | Nov 23, 1982 |
| Priority date | — |
| Expiry date | Feb 23, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/526
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Use of symmetrical triarylphosphites of the general formula I ##STR1## wherein R.sub.1 is tert.-butyl, 1,1-dimethylpropyl, cyclohexyl or phenyl, and one of PA1 R.sub.2 and R.sub.3 is hydrogen and the other is hydrogen, methyl, tert.-butyl, 1,1-dimethylpropyl, cyclohexyl or phenyl, in combination with phenolic antioxidants for stabilizing organic polymers which contain hetero atoms, double bonds or aromatic rings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.