Black dyes for ball-point pen inks

Details Black dyes for ball-point pen inks Black dyes for ball-point pen inks

1979-04-16

1980-09-23

Woodberry, Edward M.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

260154, C09B 2922, C09D 1118

Patent

active

042240719

ABSTRACT:
Nitro-substituted monoazo dihydroperimidines which are useful as black dyes for ball-point pen inks are disclosed.

REFERENCES:
patent: 3119806 (1964-01-01), Voltz et al.

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