| 摘要 |
An anionic electrocoating composition is provided including an electrodepositable .beta.- hydroxyalkylamide curing agent and an electrodepositable polymer capable of crosslinking with the curing agent. This curing agent includes an organic radical that (a) contain s from 8 to 60 carbon atoms; (b) is derived from a substituted or unsubstituted aliphatic, alicycl ic or aromatic hydrocarbon radical; and (c) is bonded to n .beta.-hydroxyalkylamide groups, wherein n i s an integer from 1 to 4, to form: Where R1 can be H or a substituted or unsubstituted aliphatic, alicyclic or aromatic group containing up to 6 carbon atoms; where R2 and R3 can be the same or differen t and can be H or a substituted or unsubstituted aliphatic, alicyclic, or aromatic group containing up to 36 carbon atoms; where R4 can be H or a substituted or unsubstituted aliphatic group containing up to 8 carbon atoms when n is an integer from 2 to 4, and a .beta.-hydroxy substituted aliphatic group containing up to 6 carbon atoms when n is 1; where A is the organic radical; where x is the valency of the organic radical and an integer greater than or equal to n; and where R1, R2, R3, R4 and A, either individually or combined, have a carbon chain length, or substituted groups, or both, such that the resulting curing agent hasa lipophilic nature enabling it to associate with the organic phase of the electrocoating composition and deposits onto a conductive during an anionic electrocoating process.
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