Soil-repellent coating compositions
US3940359A · kind A · utility
27Cited by
10References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 8, 1974 |
| Grant date | Feb 24, 1976 |
| Priority date | — |
| Expiry date | May 8, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Aqueous dispersions are disclosed containing up to 50% of particulate solids having a particle size less than 1.mu. and consisting essentially of PA0 A. 4 parts by weight of particles of hydrous metal oxides such as silica, alumina or aluminum-modified silica, and PA0 B. from 1 to 16 parts by weight of particles of a polymer containing from 0.5% to 92% by weight of --CF.sub.3 groups, and preferably having a Knoop hardness of at least 5. The dispersions can be used to coat fabrics, painted surfaces and the like to enhance soil repellancy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.