| 摘要 |
PROBLEM TO BE SOLVED: To provide a basic gas or acid gas detection paint having excellent color developing property and excellent color developing durability, and capable of forming a detection paint film having a coloring performance not declining simply with a passage of time and having a practical period of endurance (especially outdoors). SOLUTION: This basic gas or acid gas detection paint includes a paint film forming resin, a white inorganic pigment, a dispersant, and a coloring agent capable of color change (color development) by being reacted with a basic gas (alkali gas) or an acid gas. The dispersant is a carboxylic acid-introduced oligomer (unsaturated polycarboxylic acid copolymer), and the coloring agent is a sulfophthalein-based pH indicator or alizarin. COPYRIGHT: (C)2006,JPO&NCIPI
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