POSITIVE-TYPE PHOTO-SENSITIVE ANIONIC ELECTRODEPOSITION PAINT RESIN COMPOSITION, ELECTRODEPOSITION COATING BATH USING THE COMPOSITION, ELECTRODEPOSITION COATING METHOD AND PRODUCTION OF PRINTED CIRCUIT BOARD

摘要

PURPOSE: To provide the subject composition having excellent sensitivity, resolution and electrodeposition bath stability and containing a copolymer composed of (meth)acrylic acid and tetrahydropyranyl methacrylate, etc., and a compound capable of forming an acid by the irradiation of actinic light. ;CONSTITUTION: The objective composition contains (A) a copolymer produced by copolymerizing (i) (meth)acrylic acid, (ii) tetrahydropyranyl (meth)acrylate and (iii) a polymerizable monomer giving a homopolymer having a glass transition temperature of ≤0°C as essential components and (B) a compound expressed by formula (R is alkyl) and capable of forming an acid by the irradiation of actinic light.;COPYRIGHT: (C)1993,JPO&Japio