Document Type and Number:
Japanese Patent JPS616862
Kind Code:
B2
Abstract:
Certain solid dye bases which are precursors of acrylic fiber dyes and which contain a tertiary nitrogen atom are effectively quaternized in high yield and purity in a "dry state" quaternization process comprising contacting the dye base with an essentially stoichiometric amount of an alkylating agent at a temperature of 30 DEG -90 DEG C., said alkylating agent being added to said dye base gradually at a rate such that the reaction mixture is a free-flowing solid throughout the reaction.
Inventors:
RICHAADO BENJAMIN BARUSURII
Application Number:
JP11227177A
Publication Date:
March 01, 1986
Filing Date:
September 20, 1977
Export Citation:
Assignee:
AMERICAN CYANAMID CO
International Classes:
C09B43/00; C09B44/00
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