Number | Date | Country | Kind |
---|---|---|---|
2711184 | Mar 1977 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3220975 | Fox | Nov 1965 | |
3275601 | Schnell et al. | Sep 1966 | |
3305520 | Fritz et al. | Feb 1967 | |
3419526 | Schnell et al. | Dec 1968 | |
3787359 | Horn et al. | Jan 1974 | |
3794629 | Eimers et al. | Feb 1974 | |
3875112 | Bockmann et al. | Apr 1975 | |
4038252 | Vernaleken et al. | Jul 1977 | |
4073769 | Eimers et al. | Feb 1978 |
Entry |
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Encyclopedia of Chem. Technology, vol. 2, 1964, Kirk-Othmer, pp. 117 & 125. |