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Title:
MOISTURE PERMEABLE SHEET
Document Type and Number:
Japanese Patent JP2001315234
Kind Code:
A
Abstract:

To provide a moisture permeable sheet having the good feel, high light transmissivity and high moisture permeability.

The moisture permeable sheet is constituted by integrally laminating an air permeable film and a nonwoven fabric. The air permeable film is obtained by stretching a film, which contains 25-55 wt.% of a polyolefinic resin with a melt flow rate of 1-10 g/10 min and 75-45 wt.% of an inorganic filler, by 1.1-1.6 times at least in a uniaxial direction and the nonwoven fabric is a nonwoven fabric made of a polyolefinic resin with a mean fiber diameter of 0.8-10 denier and a basis weight of 10-30 g/m2. The total light transmissivity of the moisture permeable sheet after integral lamination is at least 60% and the moisture permeability thereof is at least 800 g/m2.24 hr.


Inventors:
TSUJI YOICHIRO
ICHIKAWA TARO
Application Number:
JP2000137138A
Publication Date:
November 13, 2001
Filing Date:
May 10, 2000
Export Citation:
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Assignee:
MITSUI CHEMICALS INC
International Classes:
C08J9/00; B29C55/02; B32B5/02; B32B27/32; C08K3/00; C08K3/26; C08K3/30; C08L23/00; C08L23/06; C08L23/12; D04H1/4291; (IPC1-7): B32B5/02; B29C55/02; B32B27/32; C08J9/00; C08K3/00; C08K3/26; C08K3/30; C08L23/00; C08L23/06; C08L23/12; D04H1/42
Attorney, Agent or Firm:
Shinichi Naemura (1 person outside)