tests were run according to the laboratory testing procedure described above the data summarized in table v show for the first three polymers that the addition of a nonionic surfactant pluronic u00ae f 98 at a concentration of 20 parts per million ppm based on the water significantly increased their agglomeration temperature for the fourth polymer e ma mame 50 ppm pluronic u00ae f 108 based on the water significantly increased the agglomeration temperature of this terpolymer table iii______________________________________effect of concentration of 34 pluronic 34 f 98 on adhesiveproperties of elvax u00ae 40 peel strength data lbs inch melt heat seal 5 mil aluminum sup 2 cutter 248 u00b0 f 350 u00b0 f additive std std ex ppm sup 1 peel deviation peel deviation______________________________________c10 0 3 45 0 17 6 1 1 0617 5 2 75 0 53 3 85 0 2318 10 2 9 0 60 4 5 0 8619 20 3 58 0 36 4 83 0 3320 200 3 1 0 16 4 38 0 2121 2 000 3 65 0 10 4 68 0 3122 20 000 0 75 0 31 1 48 0 13______________________________________ sup 1 based on meltcutter water sup 2 heat seal conditions pressure 20 psi dwell time 6 seconds each side table iv______________________________________ example 23 c 10 20 ppm no additive 34 pluronic 34 f 98______________________________________pellet appearance normal normalpeel strength sup 1 lbs in initialsealing temp 120 u00b0 c 47 46sealing temp 177 u00b0 c 3 8 5 3aged 1 weeksealing temp 120 u00b0 c 43 73sealing temp 177 u00b0 c 4 0 3 6______________________________________ sup 1 sealed to aluminum foil.