| 摘要 |
The present invention relates to a process for increasing the storage stability of solid aromatic isocyanatosulphonic acids by the addition of a substantially apolar, stabilizing agent which is inert towards isocyanate groups and sulphonic acid groups, which has a melting point in the region between about 27 DEG and 250 DEG C. and which, in the molten state, is a non-solvent for the isocyanatosulphonic acids. The present invention also relates to mixtures which are stable in storage and which may be in the form of a moist powder or a paste containing a mixture of solid, finely dispersed, aromatic isocyanatosulphonic acid and the substantially apolar, inert stabilizing agent mentioned above. |
