| 摘要 |
The invention relates to a dispersing agent or salts thereof, comprising the reaction product of: A) one or more polyisocyanates with an average functionality of about 2 to about 5, with B) a compound of the type Y-R-X, wherein Y represents a ring structure with at least one nitrogen atom in the ring, R represents a chain of at least three atoms and X has the meaning O-R1 or N(R1)(R2), wherein R1 is H or a group of the formula R3-Z, wherein R3 represents a chain with at least two atoms and Z represents OH or NH2, and R2 represents a group of the formula R3-Z, which compound is obtainable through reaction of an acrylate compound or an epoxide compound with a cyclic compound which has at least one group of structure (.alpha.) in the ring.
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