Claims
- 1. A mortar substrate sheet, for placement between a substrate and mortar to be coated during installation of mortar to an outer wall of a building; characterized in that
- a water absorption/retention sheet having water absorbent and water retentive properties is layered onto a surface which faces said mortar, of a water-resistant/vapor-permeable sheet having water-resistant and vapor permeable properties;
- said water-resistant/vapor-permeable sheet comprising an unwoven fabric layer and a resin layer which is layered onto a surface of said unwoven fabric layer facing said substrate, said resin layer having elasticity which enables it to seal holes made by staples attaching said mortar substrate sheet onto said outer wall;
- and a reinforcement sheet, which increases the tensile strength and tear strength along a direction parallel to a surface of said mortar substrate sheet, is coated onto a surface of said water absorption/retention sheet.
- 2. A mortar substrate sheet according to claim 1, wherein a coating layer, which does not easily dissolve in water and dissolves in a strongly alkaline solution, is coated onto a surface of said water absorption/retention sheet.
- 3. A mortar substrate sheet according to claim 2, wherein a product, obtained by adding polyvinyl alcohol to a co-polymer of polyvinyl acetate and acrylic acid, is used in said coating layer.
- 4. A mortar substrate sheet according to claim 2, wherein wax is added to said coating layer.
- 5. A mortar substrate sheet according to claim 4, wherein a product, obtained by adding polyvinyl alcohol to a co-polymer of polyvinyl acetate and acrylic acid, is used in said coating layer.
- 6. A mortar substrate sheet according to claim 1, wherein at least one type of material selected from among paper, unwoven fabric, and woven fabric is used in said water absorption/retention sheet.
Priority Claims (3)
Number |
Date |
Country |
Kind |
6/328837 |
Dec 1994 |
JPX |
|
7/101486 |
Apr 1995 |
JPX |
|
7/226824 |
Sep 1995 |
JPX |
|
Parent Case Info
This is a 371 of PCT/JP95/02648 filed Dec. 25, 1995.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
102e Date |
371c Date |
PCT/JP95/02648 |
12/25/1995 |
|
|
8/7/1996 |
8/7/1996 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO96/20321 |
7/4/1996 |
|
|
Foreign Referenced Citations (6)
Number |
Date |
Country |
02128071 |
May 1990 |
JPX |
3-144065 |
Jun 1991 |
JPX |
4-4997 |
Jan 1992 |
JPX |
5-24768 |
Mar 1993 |
JPX |
05111909 |
May 1993 |
JPX |
6-287085 |
Oct 1994 |
JPX |