Number | Date | Country | Kind |
---|---|---|---|
3317193 | May 1983 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3830760 | Bengtson | Aug 1974 |
Entry |
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Saunders & Frisch, "Polyurethanes, Chemistry and Technology", vol. XVI, High Polymer Series, Interscience Publishers, Part I (1962), Part II (1964). |
I. R. Schmolka, "Nonionic Surfactants", ed. by M. J. Schick, vol. 2, Marcel Dekker, New York, (1967). |