Number | Date | Country | Kind |
---|---|---|---|
2903134 | Jan 1979 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
1948568 | Farber et al. | Feb 1934 | |
2189209 | Jamgotch | Feb 1940 | |
2798788 | Studer et al. | Jul 1957 | |
2971812 | Moran et al. | Feb 1961 | |
3000830 | Fong et al. | Sep 1961 | |
3042573 | Roberts | Jul 1962 | |
3530517 | Nohl | Sep 1970 | |
3689435 | Berni et al. | Sep 1972 | |
4023526 | Ashmus et al. | May 1977 | |
4118189 | Reinwald et al. | Oct 1978 |
Number | Date | Country |
---|---|---|
2410824 | Sep 1975 | DEX |
7209130 | Jan 1973 | NLX |
Entry |
---|
Schwartz et al., Surface Active Agents, Interscience Publ., New York, 1949, p. 427. |