ABSTRACT
Non-inhibited isotactic PP of "Montedison" firm production was applied without additional purification (the powder of polymerizate, d = 0,92103 kg/m3, cr = 60%, [] = 1,83 in decalin at 135, Mw = 330000, Mn = 40000). Isotactic PP of Bulgarian production of "Buplen" brand d = 0,93103kg/m3, cr = 62%, ITE = 4,0g / 10min, (230, 2,16kg); ƒ = 1330P, = 25,0MPa, 4 = 625%.
