Novel light stabilizers
US4231921A · kind A · utility
5Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1978 |
| Grant date | Nov 4, 1980 |
| Priority date | — |
| Expiry date | Jul 10, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/0091
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel compounds of the general formula I ##STR1## wherein M.sup.q.sym. is a metal ion carrying a double or triple positive charge and q is 2 or 3 and r is 1 or 2, the quotient q/r being 1, 1.5, 2 or 3, and L is a piperidine which is substituted by at least one enolate group in the 1-position or 4-position and wherein the ring nitrogen is sterically hindered by alkyl substituents in the adjacent positions, and m is 0, 1 or 2 and A is H.sub.2 O or an amine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.