Redispersible acrylic polymer powder for cementitious compositions
US5519084A · kind A · utility
20Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1993 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Dec 23, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L29/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for preparing an acrylic polymer powder which is redispersible in water by atomizing an aqueous polymer dispersion containing a dispersing aid, the improvement which comprises employing an acrylic polymer containing 1-15 wt % olefinically unsaturated carboxylic acid comonomer and an effective amount of a dispersing aid consisting essentially of polyvinyl alcohol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.