Bisphenol ester derivatives
US5616780A · kind A · utility
17Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1996 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Jan 31, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2602/42
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The novel compounds of the formula I ##STR1## in which A is a group of the formula IIa or IIb, ##STR2## Y is oxygen, methylene, ethylidene or a >C.dbd.C(CH.sub.3).sub.2 group, Z is nitrogen, ##STR3## R.sub.1 and R.sub.2 are, for example C.sub.1 -C.sub.5 alkyl, R.sub.3 and R.sub.4 are, for example, hydrogen or methyl, and R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11, R.sub.12, R.sub.13 and R.sub.14 are, for example, hydrogen, are suitable for stabilizing organic material against oxidative, thermal or light-induced degradation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.