Flameproofing of textiles
US4078101A · kind A · utility
25Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 11, 1975 |
| Grant date | Mar 7, 1978 |
| Priority date | — |
| Expiry date | Dec 11, 1995 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M15/667
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for flameproofing cellulosic textile fibres which comprises impregnating the fabric with an aqueous solution containing a pre-condensate of urea and a THP salt together with any excess of the THP salt necessary to make up a ratio of urea to THP lying between 0.05:1 and 0.25:1 molar, the solution being neutralized by the addition of an alkali or base to a pH in the range 5 to 8, and treating the impregnated fibres with ammonia to form a cross-linked polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.