Flame retardant with improved durability comprising an alkali metal polyantimonate and cellulosic materials treated therewith in the absence of chlorine
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United States of America Patent
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Dec 22, 1981
Grant Date -
N/A
app pub date -
Aug 20, 1979
filing date -
Aug 20, 1979
priority date (Note) -
Expired
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Abstract
A process for improving the flame-retardant properties of cellulose containing fibrous materials in the absence of halogen compounds which comprises treating said fibrous materials with an effective amount of a colloidal aqueous dispersion of an alkali metal polyantimonate containing a mole ratio of alkali metal to antimony in the dispersion of at least about 0.3:1, and drying said materials is described.
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