| 摘要 |
Addition compounds suitable as dispersing agents, obtainable by the reaction of polyisocyanates having an average functionality of from 2.5 to 6 with monohydroxyl compounds, reaction of the resulting reaction product with compounds of the formula II G-(E)n II wherein E stands for -OH, -NH2 and/or -NHR (wherein R represents an alkyl group with 1 to 4 carbon atoms) and n stands for 2 or 3, and G represents an aliphatic, cycloaliphatic and/or aromatic group, and further reaction of the reaction product thus obtained with compounds of the formula III Z-Q III wherein Q stands for -OH, -NH2, -NHR (wherein R stands for an alkyl group having 1 to 4 carbon atoms) or -SH, and Z denotes a group having at least one basic group containing nitrogen. The invention also relates to processes for the preparation of these addition compounds, their use, and pulverulent or fibrous solids which are coated with these dispersing agents and are to be incorporated in liquid systems. |
