Number | Name | Date | Kind |
---|---|---|---|
3307944 | Weyde et al. | Mar 1967 | |
3615522 | Obl et al. | Oct 1971 | |
3647451 | Kdwig et al. | Mar 1972 | |
3718468 | Berthold et al. | Feb 1973 | |
3832186 | Masuda et al. | Aug 1974 |
Entry |
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Derwent 43394 D/24 AE (1980). |
M. I. Shtil'man, et al., Polymer Sci. USSR, 10, 2827, (1969). |
Simionescu, et al, Acta Chim. Acad. Sci. Hung. 86, 459 (1975), Chem. Abstr., 84, 44710v (1976). |
Chem. Abstr, 94, 104319t (1981). |