Number | Date | Country | Kind |
---|---|---|---|
4002082 | Jan 1990 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3725070 | Hamb et al. | Apr 1973 | |
4320224 | Rose et al. | Mar 1982 | |
4766197 | Clendinning et al. | Aug 1988 | |
4829143 | Clendinning et al. | May 1989 | |
4954604 | Genz et al. | Sep 1990 | |
4959454 | Fukuyama | Sep 1990 | |
4980453 | Brunelle et al. | Dec 1990 | |
5039185 | Uchida et al. | Aug 1991 |
Entry |
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Cella, et al "Ring Opening Polymerization of Cyclic Ether & Thioetherimides & Sulfones", pp. 142-143, General Electric Co. |
Cella, et al "The Preparation of Novel Cyclic Oligoners" pp. 581-582. |