Acetylation of crude reaction products containing polymeric colo

Details Acetylation of crude reaction products containing polymeric colo Acetylation of crude reaction products containing polymeric colo

1980-03-10

1981-11-24

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260144, 260208, 260378, 260691, 546 75, 546 76, 546100, 546154, 564144, C09B 140, C09B 542, C09B 4312, C09B 5100

Patent

active

043023991

ABSTRACT:
Acetylation of residual primary and secondary alkyl amine groups in polymeric colorants, when said colorants are in the form of a crude preparation reaction mixture, is disclosed. The acetylation improves the colorants' water solubility.

REFERENCES:
patent: 1948224 (1934-02-01), Misslin et al.
patent: 3114754 (1963-12-01), Lodge et al.
Houben-Weyl, "Methoden der Organischen Chemie-Stickstoff Verbindungen II und III", vol. XI/2, pp. 30 to 33 (1958).
Southwick et al., J. Amer. Chem. Soc., vol. 78, pp. 1608 to 1611 (1956).

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