Number | Name | Date | Kind |
---|---|---|---|
3099642 | Holtschmidt et al. | Jul 1963 | |
3248370 | Reischl et al. | Apr 1966 | |
3923713 | Hermann | Dec 1975 | |
3993641 | Tiemann et al. | Nov 1976 | |
4044171 | Muller et al. | Aug 1977 | |
4238378 | Markusch et al. | Dec 1980 | |
4336365 | Reischl et al. | Jun 1982 | |
4413079 | Disteldorf et al. | Nov 1983 |
Number | Date | Country |
---|---|---|
944309 | Dec 1963 | GBX |
Entry |
---|
Saunders et al., Polyurethanes, Part I, Interscience, NY, 1962, pp. 91-94. |