1. D. Dieterich, Poluyurethane Handbook, G. Oertel, ed., Hanser Publisher, N. Y., 1985, Chap. 2.
2. J. W. Rosthauser and K. Nachtkamp, J. Coatings Fabrics, 16, 39 (1986); (b) D. Dieterich, Prog. Org. Coatings, 9, 281 (1981); (c) U. S. Pat. 4,278,578 (1981); (d) U. S. Pat. 4,380,596 (1983).
3. G.-N. Chen and K.-N. Chen, J. Appl. Polym. Sci., 63, 1609 (1997); (b) K.-N. Chen and C.-H. Wu, Tamkang J., 32, 457 (1993).
4. G.-N. Chen and K.-N. Chen, Preceedings of 10th Polymer Symposium, 12, Part II, 53 (1996).
5. J. J. King and J. P. Bell, Epoxy Resin Chemistry, R. S. Bauer, ed., American Chemical Society, Washington D. C., 1979, Chap. 16.