Flame retardant composition for cotton articles
US8585813B2 · kind B2 · utility
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5References
8Claims
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Key dates
| Filing date | Jun 8, 2011 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Jun 8, 2031 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M2200/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Compositions useful for the flame retardant finishing of cotton articles or other cellulose materials are described. The compositions are obtainable by reacting a tetrakishydroxyalkylphosphonium (THP) salt with caprolactam and urea to form a condensation product and subsequently forming a condensate from excess THP salt and excess urea. The compositions endow cotton articles with flame retardant properties and a pleasantly soft hand coupled with good durability to laundering processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.