Title:
CUT-OFF SHEET ATTACHED WITH WATER ABSORPTIVE RESIN
Document Type and Number:
Japanese Patent JP2021001538
Kind Code:
A
Abstract:
To provide a cut-off sheet which is not expensive, can be installed easily by anyone, has air permeability in normal time and is self-closing automatically in water immersion to solve the problem in which currently in natural disasters such as heavy rain a muddy stream flows into from an underfloor ventilation port due to an occurrence of a flood and extends damage and generally sandbags are installed as realistic countermeasures, however there are no other countermeasures.SOLUTION: A sheet with a water absorptive resin 13 locally fixed to a non-woven cloth 11 with air permeability is made. On the other hand four faces are sewn together using a thin non-woven cloth 11 with ventilation and water conduction (fusion, crimp, adhesive, sewing machine, etc). A water absorptive resin 13 fixed in the sheet expands while absorbing water and turns into a hydrous gelatinous shape in a closed non-woven cloth 11, generates a blocking and forms a plate shape. The cut-off sheet 10 has a function of a ventilation port in normal time and has a function of stopping entrance of water from the ventilation port in immersion.SELECTED DRAWING: Figure 5
Inventors:
ISHINUKI AKIRA
Application Number:
JP2020106684A
Publication Date:
January 07, 2021
Filing Date:
June 22, 2020
Export Citation:
Assignee:
ISHINUKI AKIRA
International Classes:
E04B1/66