PURPOSE: To obtain the titled flameproofing agent having improved stability, dilution stability, impregnating and permeating properties, etc. without using a dispersing agent, by pulverizing and dispersing a polybrominated organic compound which is a solid at ordinary temperature into ultrafine particles in water containing a protective colloid by a wet ultrafine pulverizing and dispersing machine.
CONSTITUTION: (A) A polybrominated organic compound, e.g. 1,2,3,4,5,6-hexabromocycloheptane, is mixed with (B) a protective colloid, e.g. carboxylmethyl cellulose, and (C) water at a weight ratio between the of components (A) and (B) of (400W500):(1W50)g/kg and the remainder water by a wet ultrafine pulverizing and dispersing machine, preferably the horizontal type, to pulverize and disperse the component (A) to an average particle diameter <1μ and give the aimed flameproofing agent.
EFFECT: Improved heat resistance in hot curing without the deterioration of flameproofing effect due to the dispersing agent and corrosion of metal in contact with the flameproofed cloth.
TAKEUCHI SUEJI
KUROKAWA KENICHI
