METHOD FOR PROCESSING WHICH GIV THE FIRE ENDURANCE FOR GROUND

A process for flame retarding blends of cellulosic and other fibres eg. polyester fibres involves impregnation thereof with tetra kis (hydroxyorgano) phosphonium compounds or condensates thereof followed by curing with ammonia, the operation being performed in at least two steps, and with 5-20% of o...

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Bibliographische Detailangaben
1. Verfasser: SMITH,GEOFFREY WILLIAM
Format: Patent
Sprache:eng
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Zusammenfassung:A process for flame retarding blends of cellulosic and other fibres eg. polyester fibres involves impregnation thereof with tetra kis (hydroxyorgano) phosphonium compounds or condensates thereof followed by curing with ammonia, the operation being performed in at least two steps, and with 5-20% of organophosphorus compound (as THP ion) applied in the first step.