Claims
- 1. A backerboard comprising opposing surfaces, a bonding coating on at least one surface, and at least one shaped cut or groove that penetrates through and traverses a surface opposing a surface containing a bonding coating but does not penetrate through the bonding coating on the opposing surface; wherein said backerboard can bend along said shaped cut or groove to form an L-shaped corner having a rounded outer edge and a sharp inner edge.
- 2. The backerboard of claim 1, wherein said shaped groove or cut comprises a shape selected from a group consisting of rounded grooves, trapezoidal grooves, and adjoining V-grooves.
- 3. The backerboard of claim 1, wherein said bonding coating comprises a mortar or plastic material.
- 4. The backerboard of claim 1, wherein said bonding coating further comprises a reinforcing component.
- 5. The backerboard of claim 1, wherein both surfaces contain a bonding coating.
- 6. The backboard of claim 1, wherein both surfaces comprise a bonding coating comprising a mortar and a reinforcing component.
- 7. The backerboard of claim 1, wherein said backerboard comprises a core selected from a group consisting of expanded thermoset and thermoplastic beadboards, extruded foam and fibers, beads, flakes, strips, fragments of organic material, and fragments of inorganic material.
- 8. The backerboard of claim 1, wherein said backerboard comprises a core of expanded polymeric foam.
- 9. The backerboard of claim 1, wherein said backerboard comprises a core of expanded polystyrene foam.
- 10. The backerboard of claim 1, further comprising an adhesive in said shaped groove or cut wherein said backerboard is bent along said shaped groove to form and L-shaped corner having a rounded outside surface and a sharp inside surface.
- 11. The backerboard of claim 10, further comprising a bullnose piece of tile adhered to the outside surface over the L-shaped corner.
CROSS REFERENCE
[0001] This is a continuation-in-part of application Ser. No. 09/755,759, filed Jan. 5, 2001; which is a continuation-in-part of Application Ser. No. 60/176,357, filed Jan. 14, 2000.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60176357 |
Jan 2000 |
US |
Continuations (1)
|
Number |
Date |
Country |
Parent |
09755759 |
Jan 2001 |
US |
Child |
10247070 |
Sep 2002 |
US |