Gypsum composition with styrene butadiene latex additive
US6755907B1 · kind B1 · utility
2Cited by
85References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1999 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Dec 16, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/923
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Gypsum wallboard made lighter and less dense, without sacrificing strength, by adding to the gypsum slurry used in making the board a styrene butadiene polymer latex substantially stable against divalent ions in which the styrene butadiene polymer latex substantially stable against divalent ions in which the styrene butadiene polymer includes at least 0.25 wt. % of an ionic monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.