Phosphite esters of hindered bis and tris phenols
US3949024A · kind A · utility
4Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1971 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Dec 1, 1991 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/929
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A phosphite ester of a hindered bis phenol of the formula: ##SPC1## Wherein X is an alkylene radical or sulfur, R is hydrogen or alkyl, and R.sub.1 is alkyl, cycloalkyl or an alkyl-substituted aryl radical, which compounds are useful as stabilizers for polymeric materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.