Patent ID: 7750082
Filing Date: 2010-07-06
Classification: B65D,C08L

Abstract:
1. A screw cap comprising a screw cap formed from a composition based on a multimodal ethylene polymer having a standard density (SD) greater than 950 kg/m 3 and a melt flow index MI 2 of from 0.8 to less than 2 g/10 min, wherein said multimodal ethylene polymer includes from 35 to 65 wt %, based on the total weight of the multimodal ethylene polymer, of a fraction of ethylene polymer (A) having an SD(A) of more than 965 kg/m 3 and a melt flow index MI 2 (A) from 80 to 200 g/10 min, and from 65 to 35 wt %, based on the total weight of the multimodal ethylene polymer, of a fraction of a copolymer (B) of ethylene and at least one alpha-olefin containing from 3 to 12 carbon atoms, and having a melt flow index MI 2 (B) of at least 0.03 g/10 min, but less than 10 g/10 min and a content of said at least one alpha-olefin of from 0.1 to 5 mol %.