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Flame retardant process for cellulosic material including cyanamide, phosphonic acid, antimony oxide and polymeric halogen- containing material
Flame retardant process for cellulosic material including cyanamide, phosphonic acid, antimony oxide and polymeric halogen- containing material
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机译:纤维素材料的阻燃工艺,包括氰胺,膦酸,氧化锑和含卤素的聚合材料
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摘要
A process for imparting durable flame-retardant properties to cellulosic fiber-containing materials without detrimentally affecting other properties (e.g., shrinkage, hand, etc.) of the material is disclosed. The material is contacted with cyanamide; at least one phosphonic acid represented by the structural formula: ##EQU1## wherein R. sup.1 represents a monovalent radical selected from the group consisting of hydrogen, halogen, hydroxy, lower alkyl and lower alkoxy, and wherein R.sup.2 represents a monovalent radical selected from the group consisting of hydrogen and lower alkyl; antimony oxide; and a polymeric halogen-containing material.
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