Phthalocyanine pigments greens, properties

However, there are metal complex pigments. Without doubt the most important metal complex pigment is copper phthalocyanine (4). The phthalocyanines were discovered by accident in 19286 and now represent the second most important class of colorants after the azo colorants. Copper phthalocyanine itself exists in several polymorphic forms and gives beautiful blue and cyan colors with outstanding fastness properties.5-7 Halogenated copper phthalocyanines provide green pigments (see Section 9.12.4.3). 

Pigment green 50 is a niche player as well. Its relationship to phthalocyanine green parallels that of cobalt blue to phthalocyanine blue. Its opportunities are further constrained by chromium oxide green, which offers similar but not quite comparable performance properties and a similar but less chromatic and dirtier hue at about one-seventh the price. 

Phthalocvanine Pigments In the blue-green region of the color spectrum the formulatofs requirements are well met by the phthalocyanine pigments, which represent some of the best cost for performance values in the industry. As a class, these pigments, which were discovered serendipitously in an ICI research lab, share the following desirable properties ... 

Phthalocyanine pigments. A limited colour range of blues and greens is available. The basic structure is an extremely chemically stable copper complex with outstanding heat, light and non migratory properties. 

Uses Dispersant for org. pigments contg. transition metals like phthalocyanine blue and green Properties 100% solids Raybo 27370 - OptiSperse [Raybo]... 

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