Needle-punch carpet with binder containing alkali-stabilized silicic acid
US4293612A · kind A · utility
3Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1980 |
| Grant date | Oct 6, 1981 |
| Priority date | — |
| Expiry date | Jan 16, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/56
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for the production of needle-punch carpets with improved properties, in which method use is made, in the chemical bonding of the needle-felt, of alkali-stabilized silicic acid sol in combination with a latex of an organic binder which is conventional in this context. The amount of silicic acid is of the order of magnitude of from 1 to 30 weight % calculated as dry SiO.sub.2 on dry polymer and the particle size may vary between 1 and 100 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.