Alkylated 1,1'-biphenyl-2,2'-diyl phosphites and stabilized compositions
US4196117A · kind A · utility
41Cited by
5References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 3, 1978 |
| Grant date | Apr 1, 1980 |
| Priority date | — |
| Expiry date | Jan 3, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/929
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Alkylated 1,1'-biphenyl-2,2'-diyl phosphiates are prepared by reacting alkylated 2,2'-biphenol with phosphorus trichloride in an organic solvent an then reacting the intermediate with an alcohol or a thiol. Said phosphites are useful as stabilizers of organic polymers and lubricating oils, especially as process stabilzers for polyolefins, polyesters and polycarbonates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.