Patent ID: 9458279
Filing Date: 2016-10-04
CPC Classification: C08G,C09D,G03F,H01B,H05K

Claim Text:
1. A resin composition solution obtained by dissolving, in an organic solvent, a thermosetting resin composition containing at least: a (A) urethane imide oligomer having a terminal carboxylic acid group; and a (B) thermosetting resin wherein: the (A) urethane imide oligomer having a terminal carboxylic acid group is obtained by: (i) reacting at least a (a) diol compound and a (b) diisocyanate compound so as to synthesize a terminal isocyanate compound; (ii) reacting the terminal isocyanate compound with a (c) tetracarboxylic acid dianhydride so as to synthesize a urethane imide oligomer having a terminal acid anhydride; and (iii) reacting the urethane imide oligomer having a terminal acid anhydride with (d) water, the (a) diol compound being represented by General Formula (1): wherein R represents a divalent organic group; and 1 represents an integer of 1 to 20, the (b) diisocyanate compound being represented by General Formula (2): wherein X represents a divalent organic group, and the (c) tetracarboxylic acid dianhydride being represented by General Formula (3): wherein Y represents a tetravalent organic group; wherein the (A) urethane imide oligomer having a terminal carboxylic acid group is a tetracarboxylic acid urethane imide oligomer, wherein the (a) diol compound contains at least a polycarbonate diol represented by General Formula (4): wherein each R wherein the resin composition solution having a solute concentration of 60% by weight or more and 90% by weight or less, and wherein the resin composition solution has a viscosity of not less than 180 poise and not more than 250 poise at 23° C.