Polyolefins used were PP (Borealis PP HG 455FB) with anti-gasfading stabilisation as well as non-stabilized HDPE and
LDPE (from Versalis). All polymers were without UV stabilizers. The weight-average (Mw) and number-average (Mn) molecular
masses as well as molecular mass distributions (Mw/Mn) and melting temperatures (Tm) are shown in Table 1.