Rheology control agent and curable composition using the same

A curable composition comprising:

• a binder;
• and
• a rheology control agent, the rheology control agent comprising:
• a diamide compound (A), the diamide compound (A) being obtained by condensation reaction between a diamine component (Al) and a monocarboxylic acid component (A2);
• and
• a polyamide compound (B) obtained by polycondensation of an amine component (B1) and a carboxylic acid component (B2), wherein
• the amine component (B1) contains at least one amine selected from the group consisting of a diamine with 2 to 54 carbon atoms and a triamine with 2 to 54 carbon atoms,
• the carboxylic acid component (B2) contains at least one carboxylic acid selected from the group consisting of a dicarboxylic acid with 4 to 54 carbon atoms and a tricarboxylic acid with 4 to 54 carbon atoms,
• the polyamide compound (B) is a polyamide obtained by polycondensation of at least one of the amine component (B1) containing polymerized fatty acid derivatives and the carboxylic acid component (B2) containing polymerized fatty acids,
• a content of the polyamide compound (B) is 1 wt % to 30 wt % with respect to a total amount of the polyamide compound (B) and the diamide compound (A), and the rheology control agent is in a form of a powdered solid, and
• the polyamide compound (B) has a weight-average molecular weight of 2,000 to 50,000.