Red colors

Details Red colors Red colors

C - Chemistry, Metallurgy

09

B

260/236.14

C09B 5/02 (2006.01) A23L 1/275 (2006.01) C09B 1/20 (2006.01) C09B 5/14 (2006.01) C09B 69/10 (2006.01)

Patent

CA 1107728

RED COLORS ABSTRACT OF THE DISCLOSURE Red colors having the anthraquinone structure Image are disclosed wherein R1 and R2 are independently selected from among hydrogen, halos, lower alkyls, lower alkoxies, nitros, and sulfonates, and R3 and R4 are independently selected from hydrogens, alkyls and alkylsulfonates. Pre- cursors are disclosed as well. In a preferred embodiment R4 is an alkyl-containing polymer linking a plurality of anthraquinones into a polymeric colorant especially useful as a nonabsorbable colorant for edibles.

293227

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