Number | Name | Date | Kind |
---|---|---|---|
2427683 | Ludwig | Sep 1947 | |
2470505 | Ludwig | May 1949 | |
2848304 | Haldas | Aug 1958 | |
4210455 | Metcalf et al. | Jul 1980 | |
4657948 | Roark et al. | Apr 1987 | |
4676832 | Childs et al. | Jun 1987 | |
4706755 | Roark et al. | Nov 1987 |
Entry |
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"Functionalization and Chelating Properties of a Porous Polymer Derived From Vinylamine", Eur. Polym. J. vol. 28, No. 6, pp. 671-679, 1992, no month. |