| 摘要 |
PURPOSE:The titled cheap flameproofing agent with excellent thermal discoloration resistance, prolonged chemical stability and flameproofing effect evolving little smoke and exerting little metal corrosiveness when burnt, which is prepd. by incorporating a mixture compsn. obtd. by mixing boric acid with sodium phosphate in a specified proportion as an effective component. CONSTITUTION:20-100pts.wt. mixture compsn. obtd. by mixing 20-70wt% boric acid with 80-30wt% sodium phosphate of the formula (wherein x is 1.5-2.5) such as Na2HPO4 is, if necessary, compounded with another flameproofing agent such as guanidine phosphate, guanidine sulfamate, guanidine sulfate or guanylurea phosphate to obtain the titled flameproofing agent compsn. A treating stock consisting of a cellulosic material is given a high flameproofing effect by attachment of 8-15wt% said compsn.
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