| 摘要 |
A carbamate or terminal urea functional vinyl polymer is prepared by (a) reacting a compound having an hydroxyl group and a carbamate group, terminal urea group, or a group that can be converted to a carbamate or terminal urea group, with a cyclic carboxylic acid anhydride group to form an ester bond a nd a free acid group from the anhydride; and (b) reacting the free acid group with a compound having an epoxide group. The cyclic carboxylic acid anhydrid e group may be pendant to a vinyl polymer, or one of the compound having an hydroxyl group, a compound having the cyclic carboxylic acid anhydride group , and the compound having an epoxide group may have polymerizable ethylenic unsaturation that is polymerized, optionally with one or more copolymerizabl e monomers to form a vinyl polymer. When the compound having an hydroxyl group has a group that can be converted to a carbamate or terminal urea group, the group is converted to the carbamate or terminal urea group after step (a).Th e carbamate or terminal urea functional vinyl polymer may be included in a coating composition. The coating composition may be applied to a substrate a nd cured to form a cured coating on the substrate.
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