Patent ID: 7238405
Filing Date: 2007-07-03
Classification: B32B,H01B,H05K,Y10T

Abstract:
1. A dry film formed from a curable resin composition comprising (a) a cycloolefin polymer containing a polar group, wherein the polar group is selected from the group consisting of a carboxyl group and a hydroxyl group and the rate of introduction of the polar group in the cycloolefin polymer is within a range of 0.1–100 mol % based on the total number of units in the polymer, and at least 50 mol % of a repeating unit derived from a cycloolefin monomer, and having a number average molecular weight within a range of 1,000 to 1,000,000 as measured by gel permeation chromatography, and (b) a hardener selected from the group consisting of an organic peroxide and a hardener capable of exhibiting its effect by heat.