1. N. Watanabe, K. Hashimoto andG. S. Kyker, presented at a meeting of the Rubber Division American Chemical Society Dallas, Texas, April, 1988.
2. J. Thormer et al, Rubber World,201 (1989) 25.
3. Zetpol Technical literature (Nippon Zeon Co., Ltd, Japan).
4. ?Introduction of ZEOFORTE ZSC 2295? (Nippon Zeon Co., Ltd, Japan).
5. D. R. Hazelton andR. C. Puydak,Rubber Chem. Technol. 44 (1971) 1043.