Patent ID: 6685997
Filing Date: 2004-02-03
Classification: C08L,C09D,C09K,G02F

Abstract:
A varnished composition comprisinga polymer composition comprising a polyamic acid represented by Formula (1): wherein R1 represents a tetravalent organic residue originating in tetracarboxylic acids which is given by removing carboxyl groups, and R2 represents a divalent organic residue originating in diamines which is given by removing amino groups: a polyamide represented by Formula (2): wherein R3 represents a divalent organic residue originaing in dicarboxylic acids which is given by removing carboxyl groups; R4 represents a divalent organic residue originating in diamines which is given by removing amino groups; at least one of R5 and R6 represents a group selected from monovalent organic groups, and the other represents hydrogen or a group selected from monovalent organic groups; and when both are groups selected from the orgasic groups, they may have the same structure or different structures: and a soluble polyimide represented by Formula (3): wherein R7 represents a tetravalent organic residue originating in tetacarboxylic acids which is given by removing carboxyl groups; R8 represents a divalent organiic residue originating in diamines which is given by removing amino groups; and at least one of R7 and R8 contains a group having a side chain group; anda solvent for dissolving this polymer composition, wherein said polymer composition contains 1 to 60% by weight of the polyamide represented by Formula (2) and the soluble polyimide represented by Formula (3) in total based on the polymer composition, and said varnish composition contains 0.1 to 40% by weight of the polymer composition.