A permanent-type flame retardant based on a bromoform adduct polymer of allyl phosphonitrilate in combination with THPC resin has been developed for use with cot ton fabrics. The combination flame retardant is applied to fabrics from aqueous emul sion using conventional textile finishing equipment. The flame retardant is very effi cient; 8-oz. twill and sateen are made highly flame-resistant with as little as 13% resin add-on.
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References
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"Flammability of Clothing Textiles," Commercial Standard 191-53, U. S. Government Printing Office, Washington, D. C. (1953).
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Hamalainen, C., Process for Flameproofing Textiles with Polyphosphonitrilic Ester, U. S. Pat. 2,681,295 (1954).
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