Polyalkylpiperidine derivatives
US4238613A · kind A · utility
11Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1978 |
| Grant date | Dec 9, 1980 |
| Priority date | — |
| Expiry date | Oct 13, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/59
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Polyalkylpiperidinylesters and N-polyalkylpiperidinylamides of substituted malonic acids, methane tricarboxylic acids, .beta.-keto-, .alpha.-cyano-, .alpha.-phosphono- or .alpha.-sulfonocarboxylic acids are excellent stabilizers for polymers, especially against photochemical degradation. Polymers which can be stabilized in this way very effectively are polyolefins, styrene homo- and copolymers, polyamides and polyurethanes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.