| 摘要 |
PURPOSE:To enable erasion operation rapidly, easily, and always with good reproductivity, by using the entitled correction soln. contg. a polymer easily soluble in water, an org. or inorg. acid, a soluble metal compd., and a low b.p. solvent. CONSTITUTION:A content of polymer easily soluble in water is generally 2.2- 30wt%, preferably, 1-15wt%. For example, a monomer having a carboxylic acid, such as acrylic, methacrylic, or maleic acid, is used. As the org. acid, aliphatic carboxylic acid having 1-6C or sulfonic acid, it may be a monobasic or dibasic acid. A content of soluble metal compd. is generally 0.2-30wt%, preferably, 0.5-20wt%. A content of low b.p. solvent is generally 50-99.9wt%, preferably, 70-99wt%. |
