Hydrolytically stable ortho-alkylated phenyl phosphonites and stabilized compositions
US4233207A · kind A · utility
13Cited by
13References
20Claims
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Inventor
Key dates
| Filing date | Jul 9, 1979 |
| Grant date | Nov 11, 1980 |
| Priority date | — |
| Expiry date | Jul 9, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2223/065
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Hydrolytically stable, ortho-alkylated phenyl phosphonites of the formula ##STR1## wherein R.sup.1 and R.sup.2 are alkyl or phenylalkyl, R.sup.3 is hydrogen, alkyl or carboalkoxyalkyl, R.sup.4 is alkyl, phenyl or phenyl substituted by alkyl, R.sup.5 is halogen, --XH or XR.sup.6 where X is O or S and R.sup.6 is phenyl substituted by alkyl, phenylalkyl or carboalkoxyalkyl, are useful as stabilizers for organic polymers and lubricating oils, particularly as processing stabilizers for polyolefins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.