Title:
MULTILAYER SEALANT FILM FOR MEDICAL TREATMENT AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3787669
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a multilayer sealant film for medical treatment which may be produced with high productivity and high quality and a process for producing the same.
SOLUTION: The multilayer sealant film for medical treatment used mainly in the field of medical treatment has at least a first layer as the innermost layer consisting of at least one kind of the resins selected from a group of linear low-density polyethylene, low-density polyethylene, polypropylene and polybutene-1 and a third layer consisting of an ethylene-vinyl alcohol copolymer laminated on the outer side of the first layer via a second layer as an adhesive layer consisting of a resin composed mainly of at least one kind among non- crystalline polyolefin, adhesive polyolefin and ethylene-vinyl acetate copolymer. The density difference of the resins between the first layer and the second layer is specified to ≤0.02g/cm3.
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Inventors:
Fujio Inoue
Izumi Masamitsu
Kaoru Kashiyama
Izumi Masamitsu
Kaoru Kashiyama
Application Number:
JP1227397A
Publication Date:
June 21, 2006
Filing Date:
January 27, 1997
Export Citation:
Assignee:
OTSUKA PHARMACEUTICAL FACTORY,INC.
International Classes:
A61J1/10; A61J1/05; B32B27/28; B32B27/32; (IPC1-7): A61J1/10; B32B27/28; B32B27/32
Domestic Patent References:
| JP7136234A | ||||
| JP58142848A |
Foreign References:
| WO1995025010A1 | ||||
| US4557780 |
Attorney, Agent or Firm:
Eiji Saegusa
Kakehi Yuro
Takeshi Ohara
Hiroji Nakagawa
Yasumitsu Tate
Kakehi Yuro
Takeshi Ohara
Hiroji Nakagawa
Yasumitsu Tate
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