Pigment preparations based on py 155

Details Pigment preparations based on py 155 Pigment preparations based on py 155

C - Chemistry, Metallurgy

09

B

C09B 33/153 (2006.01) C09B 29/50 (2006.01) C09B 35/037 (2006.01) C09D 11/02 (2006.01)

Patent

CA 2582104

The invention concerns a pigment preparation based on C.I. Pigment Yellow 155, containing 0.1 % to 50% by weight, based on the weight of C.I. Pigment Yellow 155, of at least one pigment dispersant from the group of monoazo or disazo pigments substituted with at least one sulfonic acid group, characterized in that it has a chroma C greater than 53 in the CIELAB system in a solventborne alkyd melamine varnish comprising a 6.7% by weight concentration of the pigment preparation, and/or in that it has a chroma C greater than 35 in the CIELAB system in an aqueous base varnish system in a white reduction comprising a 0.2% by weight concentration of the pigment preparation in white reduction.

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