| 摘要 |
A cold-stretchable, self-adhesive film composition comprising (a) from 88 to 97% by weight of an ethylene- alpha -olefin copolymer, the alpha -olefin having from 3 to 10 carbon atoms and the copolymer having a density of between 0.905 and 0.940 g/cm3 and a melt index of between 0.1 and 2 dg/minutes and; (b) from 3 to 12% by weight of a polymer selected from among polyisobutylene, atactic polypropylene, cis-polybutadiene and bromobutyl rubber. The film compositions find particular use in the automation of the spiral wrap-round packaging technique. |
