| 摘要 |
A polycarbamic acid ester-type curing agent for thermosetting resin paints, said curing agent containing per molecule at least two groups represented by the following formula <IMAGE> (I) wherein Y represents <IMAGE> -O-, or -S-; R1 represents a direct bond, or a divalent aliphatic hydrocarbon group having 1 to 6 carbon atoms which may be substituted by a hydroxyl group or an alkoxy group, provided that when Y is <IMAGE> R1 represents a direct bond; R2 and R4, independently from each other, represent a hydrogen atom, or an aliphatic hydrocarbon group having 1 to 6 carbon atoms which may be substituted by an amino group, a hydroxyl group or an alkoxy group, or a group of the formula <IMAGE> and R3 represents a hydrogen atom or a monovalent aliphatic hydrocarbon group having 1 to 6 carbon atoms which may be substituted by a hydroxyl group or an alkoxy group.
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