Number | Name | Date | Kind |
---|---|---|---|
3025323 | Rose et al. | Mar 1962 | |
3458456 | Levy et al. | Jul 1969 | |
3786031 | Katayama et al. | Jan 1974 | |
4143159 | Moller et al. | Mar 1979 | |
4190693 | Martorano et al. | Feb 1980 | |
4448905 | Lin et al. | May 1984 |
Number | Date | Country |
---|---|---|
2302579 | Aug 1973 | DEX |
2509237 | Oct 1975 | DEX |
2852785 | Jun 1979 | DEX |
3510347 | Feb 1957 | JPX |
5832673 | Aug 1981 | JPX |
Entry |
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I. S. Lin et al: Lactone-Based Diol Chain Extenders for Polyurethanes, pp. 24-30; Plastics Compounding (Mar./Apr. 1985). |