| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a polyhydroxyamide which is a base polymer of a positive type photosensitive resin composition and enabling the control of molecular weight, molecular weight distribution and dissolution rate to an alkaline developing liquid in high reproducibility. <P>SOLUTION: The polyhydroxyamide is produced by reacting a bisaminophenol compound with a dicarboxylic acid derivative compound expressed by formula (1) (in the formula, R is an organic group), wherein the solid concentration of the reaction solution is 30-50%, the reaction temperature is 50-90°C, the reaction time is 3-12 hours, the reaction molar ratio of the bisaminophenol compound to the dicarboxylic acid derivative compound is 0.7-1.3, and the terminal is blocked. <P>COPYRIGHT: (C)2009,JPO&INPIT |
