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Patent Searching and Data


Title:
MULTILAYER FILM AND CONTAINER
Document Type and Number:
Japanese Patent JPH0796589
Kind Code:
A
Abstract:

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.


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Inventors:
WATANABE KATSUSHI
OKAMOTO HIDESHI
TANIGUCHI HIROHISA
Application Number:
JP30305293A
Publication Date:
April 11, 1995
Filing Date:
December 02, 1993
Export Citation:
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Assignee:
OTSUKA PHARMA FACTORY INC
International Classes:
B32B7/02; B32B27/32; B65D1/00; B65D65/40; (IPC1-7): B32B27/32; B65D1/09
Attorney, Agent or Firm:
Hirokatsu Kamei (1 person outside)