Title:
HEAT SEALABLE COVER MATERIAL WITH THIN SHEET AS BASE MATERIAL
Document Type and Number:
Japanese Patent JP3301832
Kind Code:
B2
Abstract:
PURPOSE: To provide a heat sealable cover material which has no fluidity of a resin layer at the time of heat sealing and in which an external appearance is held beautifully even if a colored layer is provided and adhesive properties between layers are excellent in the moisture permeability resistant cover material in which thin sheet is used as a base material to be used for a blister packaging vessel for packaging drugs, food, etc., and a packaging vessel which has a beautiful external appearance and in which its content can be easily removed with a low cost.
CONSTITUTION: A heat sealable cover material A comprises a sealing layer 2 mostly colored and containing urethane resin in one side surface of a base material 1 made of thin sheet, an intermediate layer 3 containing acid modified vinyl chloride copolymer as a main ingredient, and a heat sealable layer 4 containing vinylidene chloride copolymer as a main ingredient sequentially provided in this order. A blister packaging vessel thermally seals the material A at a flange 9 of a vessel body 7.
Inventors:
Nobuo Nishio
Yoshitaka Kawamura
Masaaki Okamoto
Hironobu Kohama
Yoshitaka Kawamura
Masaaki Okamoto
Hironobu Kohama
Application Number:
JP25252293A
Publication Date:
July 15, 2002
Filing Date:
September 13, 1993
Export Citation:
Assignee:
Metal Color Co., Ltd.
Takeda GmbH
Kanae Co., Ltd.
Takeda GmbH
Kanae Co., Ltd.
International Classes:
A61J1/03; B32B27/10; B32B27/30; B32B27/40; B65D75/32; (IPC1-7): B32B27/10; B32B27/40; B65D75/32
Domestic Patent References:
| JP5421474A | ||||
| JP351400A | ||||
| JP5426567U |
Attorney, Agent or Firm:
Shigeo Akiyama
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