Coating for wallboards
US4735027A · kind A · utility
5Cited by
18References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1986 |
| Grant date | Apr 5, 1988 |
| Priority date | — |
| Expiry date | Aug 8, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/00612
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A coating for a wallboard comprises of silica sand, cement and a particulate, non-fibrous filler, where the ratio of the average sand diameter to the average filler diameter is within the range of from about 40:1 to about 20:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.