Title:
SURFACE MODIFICATION OF PIGMENTS AND COMPOSITIONS COMPRISING THE SAME
Document Type and Number:
WIPO Patent Application WO/2013/166348
Kind Code:
A3
Abstract:
Disclosed herein is a method of making a modified pigment, comprising: reacting, under Mitsunobu conditions: (a) a first reactant comprising a protonated nucleophile having a pKa < 15, and (b) a second reactant comprising a hydroxyl-containing organic group, wherein a pigment is attached to either the first or second reactant. The method further comprises forming the modified pigment having attached an organic species comprising the nucleophile bonded to the organic group, with the net elimination of a proton and a hydroxyl. Also disclosed herein are modified pigments, which can have applications in chemical toners, inkjet ink and electrophoretic ink compositions, black matrix materials, color filters, and coatings.
Inventors:
ZHANG QINGLING (US)
LAROCHELLE RICHARD LYNNE K (US)
LAROCHELLE RICHARD LYNNE K (US)
Application Number:
PCT/US2013/039381
Publication Date:
April 17, 2014
Filing Date:
May 03, 2013
Export Citation:
Assignee:
CABOT CORP (US)
International Classes:
C09D5/00; C09B67/00; C09C1/48; C09D11/00; G02F1/167; G03F7/00
Domestic Patent References:
| WO2010040111A2 | 2010-04-08 |
Foreign References:
| EP2083289A1 | 2009-07-29 | |||
| EP1840172A2 | 2007-10-03 |
Attorney, Agent or Firm:
ROSEN, Valarie, B. (157 Concord RoadBillerica, MA, US)
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