1. PETROFLEX Co.? LIQUIFLEX-H, Product Bulletin Brazil.
2. N.S. Schneider, C.M. Brunette, W.J. MacKnight ? Adv. Urethane. Sci. Technol. 8, 49?74 (1981).
3. B. Fu, W.J. MacKnight ? Rubber Chem. and Technol., 59(5), 896?911 (1987).
4. N.N. Schneider, R.W. Matton ? Poly. Eng. and Sci. 19(15), 1122?28 (1979).
5. Y. Yen, T. Tsao ? SRI International Report 45A, Supplement A, 223?40 (1982).