Polymeric phenolic antioxidants
US4028342A · kind A · utility
4Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1975 |
| Grant date | Jun 7, 1977 |
| Priority date | — |
| Expiry date | May 29, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F12/32
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Polymeric phenols of the formula ##STR1## WHEREIN N IS AN INTEGER FROM 3 TO 2,000, R.sub.1 is a lower alkyl and R.sub.2 is hydrogen or a lower alkyl, are disclosed. Their preparation and preferred use as antioxidants, especially nonabsorbable food antioxidants, are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.