Ink for marking pen
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United States of America Patent
Stats
-
May 12, 1987
Issued Date -
N/A
app pub date -
Sep 3, 1985
filing date -
Dec 18, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A marking ink for use in marking pens is described, comprising 5 to 40% by weight of titanium dioxide surface treated with an alkaline earth metal or aluminum salt of a fatty acid having from 6 to 22 carbon atoms, 3 to 20% by weight of a resin, and a remainder of an organic solvent capable of dissolving therein the resin. The marking ink may further contain 0.5 to 30% by weight of a colorant. In this marking ink, precipitation and separation of titanium dioxide is controlled, and even if such precipitation and separation occur, titanium dioxide can be easily re-dispersed in the ink.
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