Compositions – Light transmission modifying compositions – Modification caused by energy other than light
Patent
1999-07-27
2000-10-31
Page, Thurman K.
Compositions
Light transmission modifying compositions
Modification caused by energy other than light
106 3113, G02F 100, C09D 1112
Patent
active
061397792
ABSTRACT:
A method of making a solvent based ink formulation which includes a thermochromic pigment, wherein the pigment being formed of microcapsules, includes drying a slurry that contains the pigment to a solids concentration between 70% and 99%, mixing the dried slurry in an appropriate mixing base, and adding any desired ink components to the base formulation. Each microcapsule contains a reversible thermochromic coloring material which exhibits a visible change in color between a first color state and a second color state in response to a change in temperature. Acceptable ink components include a gel vehicle, a free flow vehicle, a drying agent, a lithographic varnish, an ink wax, a polyester vehicle, a polyglycol solvent, a colloidal dispersion resin water, and a defoamer.
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Highberger Gerald
Small Lyle D.
Chromatic Technologies, Inc.
Howard S.
Page Thurman K.
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