摘要:
Provided are a wholly aromatic polyester amide copolymer resin, a polymer film containing the wholly aromatic polyester amide copolymer resin, a flexible metal clad laminate containing the polymer film, and a flexible printed circuit board employing the flexible metal clad laminate. The disclosed wholly aromatic polyester amide copolymer resin includes 5-25 parts by mole of a repeating unit (A) derived from an aromatic hydroxy carboxylic acid; 20-40 parts by mole of at least one repeating unit selected from the group consisting of a repeating unit (B) derived from an aromatic amine having a phenolic hydroxyl group and a repeating unit (B′) derived from an aromatic diamine; 20-40 parts by mole of a repeating unit (C) derived from an aromatic dicarboxylic acid; 5-20 parts by mole of a repeating unit (D) derived from an aromatic diol; and 5-20 parts by mole of a repeating unit (E) derived from an aromatic amino carboxylic acid.
摘要:
Provided are a wholly aromatic polyester amide copolymer resin, a polymer film containing the wholly aromatic polyester amide copolymer resin, a flexible metal clad laminate containing the polymer film, and a flexible printed circuit board employing the flexible metal clad laminate. The disclosed wholly aromatic polyester amide copolymer resin includes 5-25 parts by mole of a repeating unit (A) derived from an aromatic hydroxy carboxylic acid; 20-40 parts by mole of at least one repeating unit selected from the group consisting of a repeating unit (B) derived from an aromatic amine having a phenolic hydroxyl group and a repeating unit (B′) derived from an aromatic diamine; 20-40 parts by mole of a repeating unit (C) derived from an aromatic dicarboxylic acid; 5-20 parts by mole of a repeating unit (D) derived from an aromatic diol; and 5-20 parts by mole of a repeating unit (E) derived from an aromatic amino carboxylic acid.
摘要:
Disclosed are a polyamic acid solution, a polyimide resin prepared by imidization of the polyamic acid solution, a flexible metal clad laminate using the polyimide resin, and a printed circuit board including the flexible metal clad laminate, wherein the polyamic acid solution includes (a) 3,3′,4,4′-biphenyltetracarboxylic acid dianhydride (BPDA), and pyromellitic dianhydride (PMDA) as aromatic tetracarboxylic acid dianhydride; (b) at least one aromatic diamine; (c) an organic solvent; and (d) an inorganic filler.
摘要:
Provided are a flexible metal clad laminate including: (a) a first conductive metal foil in which a first polyimide layer is formed on a surface thereof; and (b) a second conductive metal foil in which a second polyimide layer is formed on a surface thereof, wherein the first polyimide layer and the second polyimide layer are joined together by an epoxy adhesive, and a method of manufacturing the same. The inventive flexible metal clad laminate can maintain the intrinsic properties of polyimide, and thus, can exhibit good heat resistance and flexibility to comparable with a conventional two-layer, double-sided flexible copper clad laminate, and a manufacturing process thereof is simple and easy, thus ensuring enhanced productivity and economical effectiveness.
摘要:
Disclosed are a polyamic acid solution, a polyimide resin prepared by imidization of the polyamic acid solution, a flexible metal clad laminate using the polyimide resin, and a printed circuit board including the flexible metal clad laminate, wherein the polyamic acid solution includes (a) 3,3′,4,4′-biphenyltetracarboxylic acid dianhydride (BPDA), and pyromellitic dianhydride (PMDA) as aromatic tetracarboxylic acid dianhydride; (b) at least one aromatic diamine; (c) an organic solvent; and (d) an inorganic filler.