Number | Date | Country | Kind |
---|---|---|---|
3839334 | Nov 1988 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2994674 | Rudkin et al. | Aug 1961 | |
3546148 | Diamond et al. | Dec 1970 | |
4677181 | Hohlein et al. | Jun 1987 | |
4814410 | Hohlein et al. | Mar 1989 | |
4868224 | Harasin et al. | Sep 1989 |
Number | Date | Country |
---|---|---|
1900867 | Jul 1969 | DEX |
821368 | Oct 1959 | GBX |
953357 | Mar 1964 | GBX |
1391066 | Apr 1975 | GBX |
Entry |
---|
Becker/Braun, Kunststoff-Handbuch, vol. VII, Polyurethane, 1983, pp. 410-425, (English Version Submitted-pp. 388-405) pp. 86-87, (English Version Submitted-p. 85). |