Patent ID: 8278021

Claim:
A photosensitive composition comprising: a terpolymer, wherein the terpolymer is derived from an unsaturated carboxylic acid, an unsaturated carboxylic acid anhydride, or a mixture thereof, an unsaturated epoxy group-containing compound and an olefinic compound; about 5 to about 100 parts by weight of a positive type photosensitizer, based on 100 parts by weight of the terpolymer; about 5 to about 20 parts by weight of a plasticizer, based on 100 parts by weight of the terpolymer and about 50 to about 90 parts by weight of a solvent, based on 100 parts by weight of the photosensitive composition, wherein the plasticizer is selected from the group consisting of an adipate, a monoisobutyrate, and a combination comprising at least one of the foregoing plasticizers.