1,5(8)-bis (substituted-N-propylamino)-4,8(5)-bis(arylthio)anthr

Details 1,5(8)-bis (substituted-N-propylamino)-4,8(5)-bis(arylthio)anthr 1,5(8)-bis (substituted-N-propylamino)-4,8(5)-bis(arylthio)anthr

1997-11-21

1999-09-21

Truong, Duc

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From ketone or ketene reactant

528224, 528226, 528228, 528125, 528127, 528128, 528272, C08G 400, C08G 1000, C08G 1400

Patent

active

059555645

ABSTRACT:
This invention relates to new blue anthraquinone colorants having Formula I ##STR1## wherein R and R1 are the same or different and are selected from hydrogen and unsubstituted or substituted C1-C6 alkyl, C3-C7 cycloalkyl 2-furyl, 2-thienyl, or phenyl; R2 is aryl; X is a group selected from hydroxy, C1-C6 alkanolyloxy, carboxy, C1-C6 carbalkoxy and carbamoyloxy.
The colorants are useful for copolymerizing into polymers such as polyesters and polyurethanes. In particular, they are advantageous for preparing colored sulfopolyesters which are useful for coloring human hair.

REFERENCES:
patent: 4804719 (1989-02-01), Weaver et al.
patent: 4841057 (1989-06-01), Miura et al.
patent: 4999418 (1991-03-01), Krutak et al.

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