Number | Name | Date | Kind |
---|---|---|---|
3243414 | DeWitt et al. | Mar 1966 | |
3356650 | McElroy | Dec 1967 | |
3620905 | Ahramjian | Nov 1971 | |
3755262 | Slagel | Aug 1973 | |
3764457 | Chang et al. | Oct 1973 | |
3791914 | Ammons et al. | Feb 1974 | |
3965057 | Ammons et al. | Jun 1976 |
Entry |
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"Polyurethanes, Chemistry and Technology" Part I by Sounders et al., pp. 264-267, 1966, Interscience Publ. N.Y. |