Number | Name | Date | Kind |
---|---|---|---|
3414459 | Wells | Dec 1968 | |
3432936 | Cole et al. | Mar 1969 | |
3556907 | Nystrand | Jan 1971 | |
3879257 | Gentile et al. | Apr 1975 | |
4125659 | Klowak et al. | Nov 1978 | |
4158594 | Becker et al. | Jun 1979 | |
4166001 | Dunning et al. | Aug 1979 | |
4351699 | Osborn, III | Sep 1982 | |
4507173 | Klowak et al. | Mar 1985 | |
4556450 | Chuang et al. | Dec 1985 | |
4894118 | Edwards et al. | Jan 1990 | |
5048589 | Cook et al. | Sep 1991 | |
5228954 | Vinson et al. | Jul 1993 | |
5292438 | Lee | Mar 1994 | |
5348620 | Hermans et al. | Sep 1994 | |
5501768 | Hermans et al. | Mar 1996 | |
5674590 | Anderson et al. | Oct 1997 | |
5679218 | Vinson et al. | Oct 1997 |
Number | Date | Country |
---|---|---|
0 115 172 | Aug 1984 | EP |
0604 824 A1 | Jun 1994 | EP |
Entry |
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Rydholm, Pulping Processes, (1967), Interscience Publishers, pp. 362, 611, 612, 652, and 653. |