The present invention relates to a microporous membrane of polyethylene-based composite material with adhesion under hot pressing, which utilises ethylene-propylene rubber and polyisobutene rubber with medium molecular weights to modify high density polyet...

A microporous polyethylene film, including a blend that contains a high density polyethylene copolymer which has a melt index (MI) of 0.1 to 100 and a content of an ±-olefin unit with 3 or more carbon atoms of 0.1 to 1% by mole; and a high density polyeth...