| abstract |
A gasket for closures comprising a polyolefin composition (I) containing A) from 25 to 62% by weight of a copolymer of butene-1 with ethylene having a copolymerized ethylene content of up to 18% by mole and no melting peak detectable at the DSC at the second heating scan; B) from 38 to 75% by weight, of (i) a propylene homopolymer, or (ii) a propylene copolymer, or (iii) a mixture of two or more of (i) and (ii), having a melting temperature T m , measured by DSC at the second heating scan, of from 130°C to 165°C; wherein the amounts of A) and B) are referred to the total weight of A) + B). |