Number | Date | Country | Kind |
---|---|---|---|
3324903 | Jul 1983 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2880208 | Yost | Mar 1959 | |
4026934 | Daum et al. | May 1977 | |
4144344 | Eichenberger et al. | Mar 1979 |
Number | Date | Country |
---|---|---|
2035364 | Feb 1971 | DEX |
364828 | Nov 1981 | DEX |
Entry |
---|
Shenoy et al., "2-Imidazolidinones (Ethylene Ureas)--A Review", Amer. Dye Report, 10, pp. 352-369 (1968). |