Patent ID: 8303857
Filing Date: 2012-11-06
Classification: C09K,Y10T

Abstract:
1. A composite with inverse thermochromic properties, the composite changing from a colourless into a coloured state with increasing temperature, comprising a colourant, wherein the colourant is selected from the group consisting of pyridinium phenolate betaines, sulphophthalein structures, Reichhardt colourants, triphenylmethane colourants, pyranines, indicator colourants, azo colourants and mixtures thereof, a fluxing agent, and an inorganic filler selected from the group consisting of muscovite, nepheline syenite, wollastonite, xonolite and mixtures thereof or an inorganic filler selected from the group consisting of muscovite, nepheline syenite, wollastonite, and xonolite, wherein each of said muscovite, nepheline syenite, wollastonite, and xonolite has a coating of an organic or organosilicon compound, and mixtures thereof.