Hindered phenol amines
US4028416A · kind A · utility
3Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1972 |
| Grant date | Jun 7, 1977 |
| Priority date | — |
| Expiry date | Feb 14, 1992 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/17
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A class of compounds are disclosed of the formula: ##STR1## wherein R represents an alkylene or alkylidene radical having from 2 to 10 carbon atoms, which compounds are effective inhibitors for oxidation prone hydrocarbon materials in general and represent singularly effective stabilizersfor rubber, both natural and synthetic, as well as certain plastic compositions containing a rubbery phase. An improved process for preparing the aforesaid compounds and certain homologs thereof likewise representing useful oxidation inhibitors is additionally disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.