Patent ID: 6482565
Filing Date: 2002-11-19
Classification: C07D

Abstract:
A photoresist cross-linker copolymer which comprises repeating units derived from:(i) a compound represented by following Chemical Formula 1: wherein,R represents straight or branched C1-10 alkylene optionally comprising an ester functional group, a ketone functional group, a carboxylic acid functional group, or an acetal functional group, or straight or branced C1-10 alkylene comprising at least one hydroxyl group and optionally comprising an ester functional group, a ketone functional group, a carboxylic acid functional group or an acetal functional group; R1 and R2 are independently hydrogen, straight or branched C1-10 alkyl comprising an ester functional group, a ketone functional group, a carboxylic acid functional group or an acetal functional group, or straight or branched C1-10 alkyl comprising at least one hydroxyl group and optionally comprising an ester functional group, a ketone functional group, a carboxylic acid functional group or an acetal functional group; R3 represents hydrogen or methyl; m represents 0 or 1; and n represents a number of 1 to 5; ii) one or more compounds selected from the group consisting of acrylic acid, methacrylic acid and maleic anhydride; and (iii) a compound represented by the following Chemical Formula 2: wherein,X and Y individually represent O, S or C; g and h individually represent a number of 1 or 2; l is a number of 0 to 5; R5 and R6 individually represent hydrogen or methyl; and R7, R8, R9 and R10 are independently straight or branched C1-10 alkyl optionally comprising an ester functional group, a ketone functional group, a carboxylic acid functional group, or an acetal functional group, or straight or branched C1-10 alkyl comprising at least one hydroxyl group and optionally comprising an ester functional group, a ketone functional group, a carboxylic acid functional group, or an acetal functional group.