Process for imparting flame retardancy to textile materials
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United States of America Patent
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Jan 25, 1994
Grant Date -
N/A
app pub date -
Jul 28, 1992
filing date -
Aug 5, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
According to the invention, the treatment process for imparting flame retardancy consists in grafting a textile material containing nitrogen atoms in its polymeric structure, especially silk, with a phosphoric acid ethyenic ester of the general formula ##STR1## in which R.sub.1 is selected from the group comprising H and alkyls and R.sub.2 is selected from the group comprising alkylenes and alkylene oxides and/or polyalkylene oxides, for example phosphated ethylene glycol methacrylate, the grafting rate being less than or equal to 20%.
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