| 摘要 |
<p>Ink compositions for use in capillary type writing instruments containing quaternary ammonium of the formula: RCH2N(CH3)3+Xwherein R is -CH2OH or -COOH, and X is -OH, -Cl, -Br, or -I. These ink compositions, when used in capillary type writing instruments, allow rejuvenation of writing points which have dried out from exposure to the atmosphere.</p> |
