Browse Prior Art Database

INDOPHENOLS AS COLORANTS FOR TONERS

IP.com Disclosure Number: IPCOM000023547D
Original Publication Date: 1978-Feb-28
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 279K

Publishing Venue

Xerox Disclosure Journal

Abstract

The use of Indophenols in electrostatic toners is disclosed. This disclosure encompasses molecular species having the following structure: G10 o G9 - G1 G8 G2 G6 G3 G5 - G4 G11 G12 * where G1-G10 -H, alkyl, aryl, and substituted alkyl, aryl; -

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This is the abbreviated version, containing approximately 96% of the total text.

Page 1 of 2

XEROX DISCLOSURE JOURNAL

INDOPHENOLS AS COLORANTS FOR Proposed Classification
TONERS U.S. Cl. 252/62.1
David A. Allen mt. Ci. G03g 9/00
Richard A. Parent

The use of Indophenols in electrostatic toners is disclosed.
This disclosure encompasses molecular species having the
following structure: G10 o

G9 ~ G1
G8 G2

G6 G3

G5 ~ G4

G11 G12 *

where G1-G10 -H, alkyl, aryl, and substituted alkyl, aryl; -

CONR
2, -OR, -NR2, -SO2NR, -Halogen. G11 = G12 = -CH3, -C2H5,
higher alkyls, aryl, or methylenic chains terminating at G5
and G4.

Also disclosed are dirtier systems having similar substitutions

in which two molecules are bridged a G1, G2, G8 or G9
positions. Such bridging groups can be -0-, -5-, -SO

2-, -

(CH
2)n~~ (-R1-

Q

R2-)~~ or any combination.

All polymers used commonly for xerography are considered
useful. The colorants are blue to greenish blue and vary in
solubility with substituents.

The following derivatives are cited as examples:

1. G1-G10 = -H; = G12 -CH3

Colour Index 49700

Volume 3 Number 1 January/February 1978 39

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INDOPHENOLS AS COLORANTS FOR TONERS (Cont'd)

2. G1-G10 -H; G11 = G12 = -C2H5

Colour Index 49705

3. G1 = -CONH-Q -G210 -H; G11 = G12 = -C2H5

OCH
3

4. = _CONH_O -(CH
2)3CH G2-G10 = -H; G11 G12 -C2H5

5. G1 = -CONH(-CH2)-Q-SONH-(CH15CH3 G2-G10 = -H;
G11 = G12 = -C2H5

6. G1 = -CONH~, G2-G10 = -H; G11 = = -C2H5

7. = -CONH-~~~COOC
2H5 G2-G10 = H; = G12 = -CH3

                 XEROX DISCLOSURE JOURNAL
40 Volume 3 Number 1 J...