| abstract |
A sufficient amount of a new halogenated aromatic imide sulfonate of the structural formula wherein X is a halogen, n is 1 to 4, Y is a lower alkyl having 1 to 4 carbon atoms, a halogen or a hydrogen atom, a is 0 to 4, M is an alkali metal and T is either 0 or 1 after incorporation into an aromatic polycarbonate gives it flame resistance. |