Gypsum backer board
US4948647A · kind A · utility
36Cited by
2References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 13, 1989 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Feb 13, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/143
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A backer board for use as a base to which ceramic tile is bonded for a bathtub or shower area, in which the board is made by forming a gypsum core board with fiber glass laminated composite facings, which include an inner fiber glass scrim, an outer fiber glass nonwoven matte and an acrylic film, which film is formed of an acrylic latex of a class commonly employed as an ingredient in Portland cement mortar for applying ceramic tile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.