Abstract
Several aromatic compounds have been synthesized and/or tested for their ability to flame-resist wool. Bromine is incorporated in the molecule to impart flame retardancy, sulfonic acid or other groups for water solubility or emulsifiability in aqueous systems, and nucleophilic or other reactive sites for the subsequent attachment of specialized fiber reactive groups to provide covalent bonding to wool where washfastness is desired. Flame resistance increases as the acidic nature of the molecule increases. Tribromometanilic acid and tetrabromophthalic acid, although not wash-fast, were the most promising of the compounds tested. Tribromometanilic acid is capable of flame-resisting wool fabrics which have been made shrink-resistant with ozone.
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