Flameproofing textiles
US4494951A · kind A · utility
12Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1982 |
| Grant date | Jan 22, 1985 |
| Priority date | — |
| Expiry date | Sep 24, 2002 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M15/431
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The cure efficiency for the treatment of fabrics with tetra(hydroxymethyl) phosphonium compounds and their precondensates e.g. with urea especially from THP sulphate, is improved by passing gaseous ammonia through impregnated fabric then wetting the fabric and completing the cure with more ammonia, preferably again passed it through the fabric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.