| 摘要 |
PURPOSE:To provide the titled composition of high electrical conductivity, transparency and good plasticity, suitable for coatings on the cases or inner surfaces of electronic precision articles, comprising specific proportion of polymeric polycarboxylic acid compound and polytriethylenediamine. CONSTITUTION:In a polytriethylenediamine solution, an unsaturated carboxylic acid (e.g., acrylic acid, methacrylic acid) is polymerized, the solvent in the system being, if necessary, removed, thus obtaining the objective composition comprising (1) a polymeric polycarboxylic acid compound with a 0.4-1.5 residue of carboxyl group per nitrogen atom in the polytriethylenediamine and (2) said polytriethylenediamine. |
