PURPOSE: To impart a sufficient heat resistance, prevent a deterioration in sealing strength and drop strength even under sterilazation in a high-temperature condition, and prevent an occurrence of blocking by a method wherein inner and outer layers are made of a low-density polyethylene
CONSTITUTION: A multilayer film is a five-layer film made of an ethylene-α- olefin copolymer. The density of the resins forming the respective layers is determined as follows: a first layer as an outer layer is 0.935-0.950g/cm3, a second layer is 0.920g/cm3 or less, a third layer is 0.925-0.950g/cm3, a fourth layer is 0.920g/cm3 or less, and a fifth layer is 0.925-0.940g/cm3. The thickness of' the respective layers to the total film thickness is as follows: the first layer is 5-15%, the second layer is 35-45%, the third layer is 3-10%, the fourth layer is 35-45%, and the fifth layer is 5-15%. A medical. container 1 is made of this multilayer film.
WO/2002/074039 | ELECTRICALLY ACTIVE FILMS |
WO/2018/102004 | PROCESS FOR FORMING A NONWOVEN COMPOSITE |
OKAMOTO HIDESHI
TANIGUCHI HIROHISA