Patent ID: 7943856

Claim:
A composition for producing a printed circuit board, comprising a polyamic acid having a crosslinkable functional group located at both ends thereof, a liquid crystal polymer or a liquid crystalline thermoset oligomer and an organic solvent wherein the polyamic acid has a structure represented by Formula 1: wherein A is represented by Formula 2: in which X is a tetravalent aliphatic or aromatic organic group and Y 2 is a divalent aliphatic or aromatic organic group, Z 1 and Z 2 , which are identical to or different from each other, each representing a monovalent crosslinkable functional group having at least one carbon-carbon double bond, Y 1 , which is identical to or different from Y 2 , represents a divalent aliphatic or aromatic organic group, and n is an integer from about 1 to about 1,000, provided that when n is 2 or greater, the repeating units A are the same or different.