and pulled at a pull rate of between 50 and 250 m/min, without breaking; 2-30% of an additional polypropylene functionalized by an unsaturated carboxylic acid anhydride; the MFI of the composition being between 10 and 50 g/10 min.
To determine the pull rate of the float, the flow rate of the chemical pump is divided by the calculated volume of magnesium hydroxide required per linear foot.