1. Carlson, D. P. and Milian, A. S. Fourth International Symposium meric per uorinated copolyethers and process for their on Fluorine Chemistry, Estes Park, CO (July, 1967). preparation from tetra uoroethylene.United States Patent
2. Gumprecht, W. H., The preparation and thermal behavior of 10. Maccone, P., Russo, A., Tonelli, C., and Gavezotti, P., New hexa uoropropylene epoxide polymers, Fourth International additives for uorinated Iubricants, NLGI Spokesman, 68(9), Symposium on Fluorine Chemistry, Estes Park, CO (July, 1967). 14-19 (2004).