Colorants for ball point pen and ribbon inks

C - Chemistry – Metallurgy – 09 – B

Patent

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260/176, 6/27, 2

C09B 11/20 (2006.01) C09B 29/00 (2006.01) C09D 11/08 (2006.01) C09D 11/18 (2006.01)

Patent

CA 1271471

COLORANTS FOR BALL POINT PEN AND RIBBON INKS Abstract of the Disclosure Reddish-brown to yellow shade colorants suitable for ribbon and ball point inks are produced from the glassy waste by-product of pararosaniline manufacture.

559567

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