Number | Date | Country | Kind |
---|---|---|---|
43 14 252.4 | Apr 1993 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3517039 | Wagner et al. | Jun 1970 | |
4049680 | Blachford | Sep 1977 | |
4485226 | Noll et al. | Nov 1984 | |
4663415 | Grogler et al. | May 1987 | |
5319052 | Prantl et al. | Jun 1994 | |
5459214 | Brahm et al. | Oct 1995 |
Number | Date | Country |
---|---|---|
301345 | Feb 1989 | EPX |
1484585 | Sep 1977 | GBX |
Entry |
---|
Ullmann, Encyclopadie der technischen Chemie, 4th Edition, vol. 19, pp. 75 et seq, Verlag Chemie Weinheim, Deerfield Beach Florida, Basle, 1980. |