ERASABLE INK FOR POROUS TIP WRITING INSTRUMENTS
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United States of America Patent
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Issued Date -
Oct 15, 2009
app pub date -
Apr 15, 2008
filing date -
Apr 15, 2008
priority date (Note) -
Abandoned
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Abstract
Disclosed herein is a water-based erasable ink for use in a writing instrument. The ink comprises platy-like pigment particles, film formers and an aqueous vehicle. Also disclosed are writing instruments using such inks as well as comprising a reservoir containing a water based erasable ink having a non-shear-thinning composition and a porous fiber nib in fluid communication with this reservoir. Related methods of forming an erasable marking are also disclosed.
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