Number | Name | Date | Kind |
---|---|---|---|
4528364 | Prier | Jul 1985 | |
4658065 | Aoshima et al. | Apr 1987 | |
4665236 | Edwards | May 1987 |
Number | Date | Country |
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250168 | Dec 1987 | EPX |
Entry |
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Y. Zhang, "Ring Opening Polymerization of Ethylene Oxide by the Y(P.sub.204).sub.3 --Al(i--Bu).sub.3 --H.sub.2 O Catalyst", Inorganica Chemica Acta, 155 (1989), 263-265. |