Number | Date | Country | Kind |
---|---|---|---|
3916502 | May 1989 | DEX | |
3923492 | Jul 1989 | DEX |
Filing Document | Filing Date | Country | Kind | 102e Date | 371c Date |
---|---|---|---|---|---|
PCT/EP90/00787 | 5/16/1990 | 2/20/1992 | 2/20/1992 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO90/14349 | 11/29/1990 |
Number | Name | Date | Kind |
---|---|---|---|
3264324 | Gould et al. | Aug 1966 | |
3875264 | Hofer et al. | Apr 1975 | |
3903208 | Hofer et al. | Sep 1975 | |
4143028 | Spivack | Mar 1979 | |
4238422 | Cozens et al. | Dec 1980 | |
4308218 | Hofer et al. | Dec 1981 | |
4406842 | Spivack | Sep 1983 | |
4474914 | Spivack | Oct 1984 | |
4481317 | Nakahara et al. | Nov 1984 | |
4952740 | Juge et al. | Aug 1990 | |
4999393 | Haruna | Mar 1991 |
Number | Date | Country |
---|---|---|
2834871 | Mar 1979 | DEX |
2562543 | Oct 1985 | FRX |
46-17896 | May 1971 | JPX |
Entry |
---|
Derwent Abs. of pub. Soviet appln. SU-897-797 (Polymer Prod. Res.), Apr. 7, 1980. |
Derwent Abs. of pub. Japanese appln. JA 7117896 (Mitsubishi Rayon Co. Ltd.), May 19, 1971. |
Hartman, W., et al., J. Molecular Catalysis 48: (Oct. 17, 1988). |