COPPER PHTHALOCYANINE AMINE DERIVATIVES, NIR ABSORPTION POLYCARBONATE FILTER AND METHOD FOR THE CHEMICAL SYNTHESIS AND USE OF SUCH DERIVATIVES

摘要

The invention relates to a copper phthalocyanine amine derivative, obtained by a pressure amination process of phthalocyanine green with morpholine under specific reaction conditions. Moreover, the invention relates to a dye or pigment comprising one or several copper phthalocyanine amine derivatives with varying degrees of amination. The dye may be added to polycarbonate in the molten state, which is then processed to yield a finished product by extrusion. The recommended concentration of copper phthalocyanine amine derivative for a polycarbonate layer with 2 mm thickness is 0.01 % of the polymer weight. Due to its near infrared (NIR) absorption properties, the dye or pigment particularly allows for superior thermoisolation when coating walls, facades, glass, etc. It also allows for good transmittance in the visible light spectrum. Consequently, the field of application is wide. The dye is e.g. suitable for camouflage, preventing detection by night-sight devices.