Number | Name | Date | Kind |
---|---|---|---|
3948668 | Hayek et al. | Apr 1976 | |
3985663 | Lu et al. | Oct 1976 | |
4139509 | Matsunaga et al. | Feb 1979 | |
4426226 | Ohta et al. | Jan 1984 | |
4508570 | Fujii et al. | Apr 1985 | |
4554555 | Aruga et al. | Nov 1985 | |
4623689 | Shintani et al. | Nov 1986 | |
4627875 | Kobayashi et al. | Dec 1986 | |
4732616 | Kondo et al. | Mar 1988 |
Entry |
---|
McCutcheon's Detergents & Emulsifiers, 1978 North American Ed., pp. 194 and 204. |