1. Hama, I., T. Okamoto, E. Hidai, and K. Yamada, Direct Ethoxylation of Fatty Methyl Ester over Al-Mg Composite Oxide Catalyst, Ibid.:19–24 (1997).
2. Hama, I., T. Okamoto, H. Sasamoto, and H. Nakamura, Japanese Patent JP6-277016A (1994).
3. Behler, A., B. Guckenbiehl, and H.-C. Raths, Fatty Acid Methyl Ester Ethoxylated Revisited: Synthesis via Direct Ethoxylation and Properties, The Proceedings of the 87th AOCS Annual Meeting, Indianapolis, AOCS Press, Champaign, 1996, p. 79.
4. Cox, M.F., and U. Weerasooriya, Methyl Ester Ethoxylates, Ibid.,, Indianapolis, AOCS Press, Champaign, 1996, p. 82.
5. Behler, A., German Patent DE3914131 (1989).