Number | Name | Date | Kind |
---|---|---|---|
2549520 | Prichard | Apr 1951 | |
3305586 | Phielix | Feb 1967 | |
3305587 | Sperbert et al. | Feb 1967 | |
3420887 | Noddings et al. | Jan 1969 | |
3422146 | Defoor et al. | Jan 1969 | |
3446850 | Cotrupe et al. | May 1969 | |
3689544 | Scanlon et al. | Sep 1972 | |
3778477 | Mueller et al. | Dec 1973 | |
3884981 | Kiff | May 1975 | |
3941845 | Voskuil et al. | Mar 1976 | |
3974221 | Duggan | Aug 1976 | |
3998884 | Gibson | Dec 1976 | |
4053524 | Stapp et al. | Oct 1977 | |
4154762 | Huang et al. | May 1979 |
Entry |
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Kirk-Othmer Encyclopedia of Chemical Technology, 2nd Ed., vol. 6, pp. 684-686, John Wiley & Sons, (1965). |