Heterocyclic-substituted quinacridone pigments

Details Heterocyclic-substituted quinacridone pigments Heterocyclic-substituted quinacridone pigments

C - Chemistry, Metallurgy

09

B

C09B 48/00 (2006.01) C08J 3/205 (2006.01) C08K 5/3447 (2006.01) C08K 5/353 (2006.01) C08K 5/47 (2006.01) C09D 11/00 (2006.01) C09D 17/00 (2006.01)

Patent

CA 2271400

This invention relates to quinacridone pigments of formula (I) (see formula I) wherein X is O, S, or NR; R is hydrogen, C1-C6 alkyl, C5-C7 cycloalkyl, or C7-C16 aralkyl; Y is C1-C6 alkyl, C1-C6 alkoxy, or halogen; the dashed line represents an optional double bond; R1 and R2 are independently hydrogen, C1-C6 alkyl, C5-C7 cycloalkyl, C6-C10 aryl, C7-C16 aralkyl, nitrile, or carboxyl or an ester or an amide thereof, or R1 and R2 together form a C5-C8 cycloaliphatic ring or a fused-on aromatic or heteroaromatic ring; R3 is hydrogen or C1-C6 alkyl; and m is 0, 1, or 2. This invention further relates to the preparation and use of such quinacridone pigments.

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