Hydridoaminosilane treatment for rendering surfaces water-repellent
US4789564A · kind A · utility
18Cited by
24References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1987 |
| Grant date | Dec 6, 1988 |
| Priority date | — |
| Expiry date | Mar 31, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H23/44
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Surfaces containing hydroxyl groups are rendered water-repellent through exposure to hydridoaminosilanes of the general formula EQU H.sub.x Si(NRH).sub.y (NR.sub.2.sup.1).sub.3-y In particular, tris(dimethylamino)silane and its derivatives have been found to make substrates with hydroxyl-containing surfaces hydrophobic without adversely effecting the physical properties of the substrate being treated and without the necessity of and pre- or post-treatment steps (i.e. moisturizing, neutralizing, etc.).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.