THERMOCHROMIC INK AND COATING COMPOSITIONS AND METHODS FOR THERMAL ACTIVATION

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United States of America Patent

APP PUB NO 20090036304A1
SERIAL NO

11831180

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Abstract

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A thermochromic ink composition comprises at least one thermochromic optical-state change material, at least one thermally responsive pH modifier, at least one solvent, and at least one binder material, wherein the thermochromic ink composition has a viscosity between about 0.1 centipoise (cPs) and about 10,000 cps, and a maximum optical absorbance in a range from about 200 nm (nanometers) to about 800 nm, and wherein the thermochromic ink composition is capable of transforming from a first optical state to a second optical state upon exposure to a thermal stimulus. The thermochromic ink composition may be used to deposit a thermochromic coating composition which may be used as part of an anti-theft system for optical articles. Methods for thermal activation of the compositions are also provided.

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Patent Owner(s)

Patent OwnerAddress
NBCUNIVERSAL MEDIA LLC1209 ORANGE STREET WILMINGTON DE 19801

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Krishnan, Kasiraman Clifton Park , US 61 1444
Misner, Matthew Jeremiah Scotia, US 45 276
Patel, Ben Purushotam Niskayuna, US 28 199
Peters, Andrea Jeannine Clifton Park , US 12 88
White, James Mitchell Niskayuna, US 32 218
Wisnudel, Marc Brian Clifton Park , US 76 826

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