Organosilicon emulsions for rendering porous substrates water repellent
US5449712A · kind A · utility
34Cited by
27References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1993 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Jan 13, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2383/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There are provided aqueous emulsions useful for rendering porous substrates water repellent comprising PA1 a) a hydrolyzable silane and/or siloxane, b) an organopolysiloxane resin consisting of R.sub.3 SiO.sub.0.5 siloxane units and SiO.sub.2 siloxane units, or R.sub.3 SiO.sub.0.5 units, R.sub.2 SiO units, and SiO.sub.2 siloxane units, PA1 c) a filler having a surface area of at least 40 m.sup.2 /g, PA1 d) an emulsifying agent, and PA1 e) water. Such compositions are especially useful on masonry exposed to wind-driven rain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.