Number | Date | Country | Kind |
---|---|---|---|
2766/90 | Aug 1990 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
2977370 | Oken | Mar 1961 | |
3108100 | Tate et al. | Oct 1963 | |
3424719 | Masters | Jan 1969 | |
3494888 | McElroy | Feb 1970 | |
3585227 | Dreyfuss | Jun 1971 | |
4085161 | Sekmakas et al. | Apr 1978 | |
4134866 | Tominaga | Jan 9179 | |
4401499 | Kaneko et al. | Aug 1983 | |
4562227 | Rogler et al. | Dec 1985 | |
4564651 | Markert et al. | Jan 1986 | |
4728676 | Muller | Mar 1988 | |
4788224 | Muller et al. | Nov 1988 | |
4855368 | Tufts et al. | Aug 1989 | |
4906722 | Eldin et al. | Mar 1990 |
Number | Date | Country |
---|---|---|
3542569 | Dec 1984 | DEX |
Entry |
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Patent Abstract of Japan 58098325. |
International Polymer Science and Technology, vol. 13, (1986) No. 8. |
WPI Acc. No: 86-028492/05. |