Example 6

A blue-to-green color-change writing composition according to certain embodiments of the invention herein is shown in Table 6. The erasable writing composition is formed by combining stearic acid, stearyl alcohol, phenolic resin, a mineral filler, leuco dye, and a (permanent) dry pigment.

TABLE 6
Blue-to-Green Color-Change Writing Composition
Weight
ComponentGramsPercentage (wt %)
stearic acid7540.76086957
stearyl alcohol7540.76086957
Mineral filler (Ultrex 96105.434782609
(BASF) calcined clay)
phenolic resin (Durez 32420)105.434782609
Leuco dye (Copikem Cyan 39)42.173913043
Dry pigment (Fluorescent105.434782609
Green Pigment)
TOTAL184.00100

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