Number | Name | Date | Kind |
---|---|---|---|
2205883 | Graves | Jun 1940 | |
3408319 | Rau | Oct 1968 | |
3961881 | Sumner et al. | Jun 1976 | |
3994744 | Anderle et al. | Nov 1976 | |
4081383 | Warburton, Jr. et al. | Mar 1978 | |
4334876 | Beier et al. | Jun 1982 | |
4388372 | Champaneria et al. | Jun 1983 | |
4408995 | Guth et al. | Oct 1983 | |
4448581 | Fennekels et al. | May 1984 | |
4501591 | Ucci et al. | Feb 1985 | |
4526581 | Prentiss et al. | Jul 1985 | |
4579762 | Ucci et al. | Apr 1986 | |
4592940 | Blyth et al. | Jun 1986 | |
4695497 | Nagy, Jr. et al. | Sep 1987 | |
4699812 | Munk et al. | Oct 1987 | |
4822373 | Olson et al. | Apr 1989 | |
4875901 | Payet et al. | Oct 1989 |
Number | Date | Country |
---|---|---|
0090788 | May 1983 | EPX |
0235980 | Sep 1987 | EPX |
0235989 | Sep 1987 | EPX |
Entry |
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Sulfonation and Related Reactions, E. E. Gilbert, Interscience Publishers, 1965. |
Phenolic Resins, A. Knopf et al., Springer-Verlag, 1985. |