Metal salts of N,N-disubstituted .beta.-alanines and stabilized compositions
US4077941A · kind A · utility
29Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1976 |
| Grant date | Mar 7, 1978 |
| Priority date | — |
| Expiry date | Apr 21, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/2222
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compounds having the formula ##STR1## WHEREIN R.sub.1 and R.sub.2 are alkyl, cycloalkyl, phenyl, alkyl substituted phenyl, benzyl or alkyl substituted benzyl, PA1 R.sub.3 and R.sub.4 are both independently hydrogen or lower alkyl, PA1 M is a metal, and PA1 n is a value of from 1 to 4, Are good light stabilizers. The metal salts of this invention are prepared by reacting the appropriate amino acid or its alkali metal salt with a reactive form of the metal or metal complex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.