Title:
POROUS SHEET AND ABSORBING MATERIAL USING THE SAME
Document Type and Number:
Japanese Patent JP3474677
Kind Code:
B2
Abstract:
PURPOSE: To obtain a porous sheet capable of industrially safely and continuously producing at high rate and having air permeability, moisture permeability and resistance to water and excellent feeling and high strength (high tear strength and tensile breaking point strength) and to obtain an absorbing material using the porous sheet.
CONSTITUTION: This porous sheet is obtained by stretching a sheet molded of a melted and blended material of a resin composition composed of (a) 50-90 pts.wt. of a crystalline polyolefin resin, (b) 50-10 pts.wt. of an organic compound having miscibility to the crystalline polyolefin resin (a) at a temperature higher than the melting point of the crystalline polyolefin resin (a) and generating phase separation to the crystalline polyolefin resin (a) at a temperature below the melting point of the crystalline polyolefin resin (a) and (c) 0.01-3 pts.wt. (an amount to 100 pts.wt. of the crystalline polyolefin resin (a)) in at least one direction. The crystal nucleating agent (c) is a metallic salt of phosphoric ester of an aromatic alcohol.
Inventors:
Shingo Odajima
Yoshiaki Kumamoto
Katsuji Maeda
Osamu Yuasa
Yoshihiro Sakai
Yoshiaki Kumamoto
Katsuji Maeda
Osamu Yuasa
Yoshihiro Sakai
Application Number:
JP15191795A
Publication Date:
December 08, 2003
Filing Date:
June 19, 1995
Export Citation:
Assignee:
Kao Corporation
International Classes:
A61F13/49; A61F5/44; A61F13/15; A61F13/514; B29D7/01; C08J5/18; C08J9/00; (IPC1-7): C08J9/00; A61F13/15; A61F13/514
Other References:
【文献】特許3356357(JP,B2)
Attorney, Agent or Firm:
Osamu Hatori (1 person outside)