Dry erase inks, and associated methods and writing instruments
AssigneeSanford, L.P.
InventorsRussell Andrew Vanderhoof, Wing Sum Vincent Kwan
Life of this patent
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Abstract
Dry erase ink formulations containing at least one colorant encapsulated in a plurality of capsules wherein the capsules comprise a release agent, methods of erasing dry erase ink formulations, and writing instruments including a writing tip portion connected to a tubular member or refill and a dry erase ink formulation are provided herein.
Claims15
An ink formulation comprising a colorant encapsulated in a plurality of capsules, wherein the plurality of capsules comprises a release agent, where the release agent comprises epoxy acrylate, polyester acrylate, polyether acrylate, 2-(2-ethoxyethoxy) ethylacrylate, 2-phenoxy ethyl acrylate, tetrahydrofurfuryl methacylate, ortho-phenoxy ethyl acrylate, pentaerythriol acrylate, cyclic trimethylolpropane formal acrylate, isobornyl acrylate, benzyl acrylate, 3,3,5-trimethylcyclohexyl acrylate, or any combination thereof, wherein the ink formulation is a dry erase ink.
Dependencies are inferred from the claim text.