| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polyester resin which has superior paint film performance such as water resistance, which has a wide ranged aptitude for coating operation, and with which a coating film excellent in finished quality, such as coated surface smoothness and metallic appearance is formed. <P>SOLUTION: An oligomer having a specific acid value, hydroxyl value and number average molecular weight is obtained by making a compound having at least one hydroxyl group and at least one carboxyl group in a molecule thereof, a monoepoxide compound having a long-chain hydrocarbon group, and as necessary, a polyvalent carboxylic acid and/or polyvalent carboxylic acid anhydride react with one another, and/or a polyester resin is obtained by further making a polyvalent carboxylic acid and/or a polyvalent carboxylic acid anhydride and/or a polyisocyanate compound react with the oligomer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
