US 9,963,592 B2 · Modified colorants and inkjet ink compositions comprising modified colorants

Abstract

The present invention relates to a modified colorant comprising a colorant having at least one polymer attached or adsorbed thereto. The polymer comprises at least one functional group, and various embodiments of the functional group are disclosed. For each of these embodiments, preferably the functional group has a defined calcium index value. Also disclosed are various uses for these modified colorants, including inkjet ink compositions. Thus, the present invention further relates to an inkjet ink composition comprising a) a liquid vehicle, b) at least one colorant, and c) at least one polymer comprising at least one functional group as described herein.

Claims11

Dependent claims

A modified colorant comprising a pigment and a polymer having at least one functional group having a calcium index value greater than or equal to a calcium binding index value of 1,2,3-benzene tricarboxylic acid, wherein the polymer is a coating on the pigment,

wherein the functional group comprises at least one geminal bisphosphonic acid group, partial esters thereof, or salts thereof, and
wherein the polymer comprises at least one monomer comprising the functional group.

Dependencies are inferred from the claim text.

Facts

Application

15/643,605Filed 7 Jul 2017 · continuation

Priority

31 Oct 2005

Published

US 2017/0306156 A126 Oct 2017

Granted

8 May 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification40 codes

C09B 68/41
Characterised by the chemical nature of the attached groups: polymers attached to the pigment surface
B82Y 30/00
Nanotechnology for materials or surface science
C08K 5/0041
Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59: optical brightening agents, organic pigments
C09B 67/0001
Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents…

Family

Application60/731,721Us provisional application · filed 31 Oct 2005

Application60/815,305Us provisional application · filed 21 Jun 2006

Application60/815,326Us provisional application · filed 21 Jun 2006

Application60/815,327Us provisional application · filed 21 Jun 2006

Application11/590,170Parent of this continuation · filed 31 Oct 2006

US 2017/0306156 A1Pre-grant publication · published 26 Oct 2017

US 9,725,598 B2Parent of this continuation

US 2007/0100023 A1Published application

US 9,963,592 B2This patent

From the US filing history. Foreign family members aren’t listed.

Modified colorants and inkjet ink compositions comprising modified colorants

Life of this patent

Modified colorants and inkjet ink compositions comprising modified colorants

Life of this patent

Abstract

Claims11