Number | Name | Date | Kind |
---|---|---|---|
4937363 | Smith, Jr. et al. | Jun 1990 | |
4939217 | Stricklen | Jul 1990 | |
5106804 | Bailly et al. | Apr 1992 | |
5124418 | Welborn, Jr. | Jun 1992 | |
5153157 | Hlatky et al. | Oct 1992 | |
5198401 | Turner et al. | Mar 1993 | |
5225500 | Elder et al. | Jul 1993 | |
5308817 | Reddy et al. | May 1994 |
Entry |
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Boor, Jr., John, Ziegler-Natta Catalysts and Polymerizations, Academic Press, New York, 1979, pp. 602-609. |
C&EN, "Zirconinm Catalysts Polymerize Olefins Faster," Dermot O'Sullivan, 1983, pp. 29, 30. |