Number | Date | Country | Kind |
---|---|---|---|
99 14834 | Nov 1999 | FR |
Number | Name | Date | Kind |
---|---|---|---|
3639521 | Hsieh et al. | Feb 1972 | A |
3709957 | Brebner | Jan 1973 | A |
4547413 | Lustig | Oct 1985 | A |
6107454 | Schmieg et al. | Aug 2000 | A |
Number | Date | Country |
---|---|---|
1 321 437 | Aug 1993 | CA |
0 244 982 | Nov 1987 | EP |
0 849 323 | Jun 1998 | EP |
WO 9420574 | Sep 1994 | WO |
Entry |
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Ullman's Encyclopedia of Industrial Chemistry, 5th Ed. (1995), vol. A26, pp. 655-659. |