or an alkyl group having from 1 to 4 carbon atoms, and R3 is an alkyl group having from 1 to 20 carbon atoms, said ring-brominated aromatic monomer units including an average of at least about 1.5 bromines per unit, said flame retardant polymer latex coating composition having a glass transition temperature of between -33.4??? C. and 25.4??? C., and in which the ring-brominated aromatic monomer un