Number | Name | Date | Kind |
---|---|---|---|
3563934 | Burnett | Feb 1971 | |
3925509 | Cooper et al. | Dec 1975 | |
4016138 | Anderson | Apr 1977 | |
4024093 | Abolins et al. | May 1977 | |
4288631 | Ching | Sep 1981 | |
4315848 | Dexter et al. | Feb 1982 | |
4385146 | Axelrod | May 1983 | |
4444934 | Kasahara et al. | Apr 1984 |
Entry |
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A. R. Patel et al, "Ultraviolet Stabilization of Polymers: Development with Hindered-Amine Light Stabilizers", Stabilization and Degradation of Polymers, David L. Allara et al, Advances in Chemistry Series No. 169, American Chemical Society, Wash., D.C., 116-132, (1978). |