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TONERS CONTAINING HINDERED PHENOLS

IP.com Disclosure Number: IPCOM000022775D
Original Publication Date: 1976-Jan-31
Included in the Prior Art Database: 2004-Mar-26
Document File: 2 page(s) / 206K

Publishing Venue

Xerox Disclosure Journal

Abstract

Certain hindered phenols may be used as the only or principal binder for pigments and dyes for xerographic toners, The phenols are compounds having 2 to 8 sterically hindered phenol groups, a crystalline melting

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

TONERS CONTAINING
HINDERED PHENOLS
R. A. Braun

Proposed Classification
U~S~CL 62,1
mt. CL G03g 9/00

Certain hindered phenols may be used as the only or
principal binder for pigments and dyes for xerographic
toners, The phenols are compounds having 2 to 8
sterically hindered phenol groups, a crystalline melting
point between 45°C and 150°C, and a molecular weight
between 800 and 3,000,

Typical of the materials which fall within the scope of
this concept are those shown below:

[0

C tH2O~CH2CH2

O~X

X-O 0-~X

X~O 0~X

CU
3 - CU3

XO~CH-CH
2-~0~ 0 C

2 CH

3

4

0 CU

CH3

C CE

3 CH~

CH
22~OH

CE
3 C(CH,)3

XOCH
2~C~CH-O-C~

2 OX,

CU
3

CU
3

where X is -

Volume 1 Number 1 January 1976 71

0~X

L

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Page 2 of 2

TONERS CONTAINING HINDERED PHENOLS (Cont d)

or

0 C(CH

3)

   I where Y = A1~yl C
YOP1- C CE2 - K~9)- OH

C(CH
3) C6H5 or C6~4~5H.

Such hindered phenols be used as the only binder material
for toners or where increased mechanical strength is
required, polymers may be used as additives to conven~
tional toner polymers in the 1 to ~ 50 percent concentra-
tion range. The toners of this type have low fusing
temperatures and may be used in radiant and flash fusing
systems

72 XEROX DISCLOSURE JOURNAL

Volume 1 Number 1 January 1976

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