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Patent Searching and Data


Title:
POROUS COMPOSITE SHEET AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JPH11140756
Kind Code:
A
Abstract:

To obtain a porous composite sheet that has excellent water-absorbing ability, a low swelling rate with reduced odor adsorption and excellent mechanical properties and to provide a production process for the porous composite sheet that can readily give such porous composite sheets.

The objective sheet is given by integrating polyvinyl alcohol fibers and binder fibers. This sheet has pores including continuous pores that passing through from one face to the other of the sheet with a porosity of 50-80%, and a water-absorption rate of ≤200 seconds/70 mm. The porous composite sheet is produced by forming the sheet with polyvinyl alcohol fibers and fibers for binder and integrating both the fibers by applying heat to the sheet at least at 110-150°C for 3-15 minutes.


Inventors:
SHINOHARA KENICHI
MATSUDA ERIKO
Application Number:
JP30524997A
Publication Date:
May 25, 1999
Filing Date:
November 07, 1997
Export Citation:
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Assignee:
UNITIKA LTD
International Classes:
C08J9/00; B29D7/00; D04H1/4309; D04H1/542; B29K105/04; (IPC1-7): D04H1/42; B29D7/00; C08J9/00; D04H1/54