182 04 231 62 230 56hexanediol 1 6 60 91 tmh diol 61 04 butanediol 1 4 57 90 sn octoate 2 0 2 0 2 0 2 0 2 0 2 0co mercial flowing agenton the basis of alkyl esters of perfluorinated 1 0 1 0 1 0 1 0 1 0 1 0carboxylic acidscomponents bipdi b sub 1 387 91 386 54 417 96 prepolymer b sub 6 465 55 prepolymer b sub 7 450 88 prepolymer b sub 8 478 24mechanical datatensile strength n mm sup 2 49 5 48 46 4 46 7 44 7 43 8elongation 200 190 205 210 185 175__________________________________________________________________________ the figures for the components a and b in tables 1 and 2 mean either gram product or weight parts product __________________________________________________________________________example 2 6 9 12 14 15 17 19__________________________________________________________________________washing liquid testbefore tensile strength u03c3 sub b n mm sup 2 46 5 44 41 5 40 5 39 4 48 7 46 1 44 1the elongation u03c3 sub b u03c3 sub b 220 230 180 215 175 205 200 175test u03c3 sub 100 tension u03c3 sub 100 n mm sup 2 14 0 13 5 12 5 13 11 5 14 4 13 9 15 3 after 5th cycle 26 0 23 5 22 0 23 0 20 3 27 3 25 8 23 2 u03c3 sub b n mm sup 2 after 24 h at rt 45 0 42 5 41 0 43 0 39 0 46 1 44 5 43 7after after 5th cycle 225 230 195 230 180 200 210 180the u03b5b test after 24 h at rt 195 195 200 205 160 185 190 165 after 5th cycle.