Yellow pigment blend for hot melt traffic markings

C - Chemistry – Metallurgy – 09 – B

Patent

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Details

C09B 67/22 (2006.01) C09B 57/04 (2006.01) C09C 1/36 (2006.01) C09D 5/00 (2006.01) C09D 7/12 (2006.01) C09D 17/00 (2006.01) E01F 9/04 (2006.01) E01F 9/08 (2006.01)

Patent

CA 2240307

The present invention relates to a yellow pigment blend containing a) a yellow nickel titanate pigment, b) a yellow bismuth vanadate, and c) a yellow isoindolinone pigment, wherein a hardened pigmented article resulting from the blend is characterized according to the CIE tristimulus values system by having a value for Y of at least about 36, a value for x between 0.48 and 0.51 and a value for y between 0.44 and 0.47. The yellow pigment blend has very good heat resistance for hot melt application and very good lightfastness for long term durability.

La présente invention concerne un mélange de pigments jaunes contenant a) un pigment jaune de titanate de nickel, b) un vanadate de bismuth jaune et c) un pigment iso-indolinone jaune. Un article pigmenté, durci, obtenu à partir de ce mélange est caractérisé, selon le système de composantes trichromatiques de la CIE, par une valeur de Y d'environ 36, par une valeur de x située entre 0,48 et 0,51 et par une valeur de y située entre 0,44 et 0,47. Le mélange de pigments jaunes possède une bonne thermorésistance pour des applications thermofusibles et une très bonne solidité à la lumière lui assurant une longue durabilité.

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