Number | Name | Date | Kind |
---|---|---|---|
2459076 | Hultquist | Jan 1949 | A |
2823226 | Tsukamoto et al. | Feb 1958 | A |
3373189 | Lum | Mar 1968 | A |
4410733 | Mangold et al. | Oct 1983 | A |
4518785 | Eckhardt et al. | May 1985 | A |
4647708 | Hunter et al. | Mar 1987 | A |
4655841 | Gerhardt | Apr 1987 | A |
Number | Date | Country |
---|---|---|
0058928 | Sep 1982 | EP |
Entry |
---|
Ullmann's Encyclopedia of Industrial Chemistry, 5th Edition, VCH Verlagsgesellschaft, Weinbeim, vol. A1, p. 36-38. |