Patent ID: 8623449
Filing Date: 2014-01-07
Classification: H05K,Y10T

Abstract:
1. A method for producing a laminated base material, comprising: a step of applying a liquid composition containing an aprotic polar solvent and a liquid crystal polyester to a substrate; and a step of forming a covering material by removing the aprotic polar solvent in the liquid composition; wherein the substrate comprises an insulating layer and a conductor laminated on the insulating layer, the conductor forms a circuit pattern on the insulating layer, the liquid composition is applied to the substrate in a manner such that the liquid composition covers the conductor in the applying step, and the liquid crystal polyester comprises 30 mol % to 50 mol % of the structural unit represented by formula (1), 25 mol % to 35 mol % of the structural unit represented by formula (2), and 25 mol % to 35 mol % of the structural unit represented by formula (3), relative to a total content of all structural units: wherein Ar wherein Ar