| 摘要 |
The present invention is directed to a metallic pigment composition which comprises a metallic pigment and a phosphorus compound selected from the group consisting of a phosphite represented by the following formula (I); <IMG> (I) wherein R1, R2 and R3, which are the same or different, represent a hydrogen atom, an alkyl group having 1 to 24 carbon atoms, a halogen-substituted alkyl group having 1 to 24 carbon atoms, an aryl group, a cycloalkyl group, an alkenyl group and an alkanol group, and n represents an integer of 2 to 4, and a phosphobetain represented by the following formula (II); <IMG> (II) wherein R4, R5, R6 and R7, which are the same or different, represent a hydrogen atom, an alkyl group having 1 to 24 carbon atoms, a halogen-substituted alkyl group having 1 to 24 carbon atoms, an aryl group, a cycloalkyl group, an alkenyl group and an alkanol group, n is the same as mentioned above. The metallic pigment composition of the present invention is suitable for use in a waterborne coating composition.
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