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US 2013/0061773 A1Published application
Modified pigments
AssigneeCabot Corporation
InventorAlexander I. Shakhnovich
Life of this patent
Estimating the term…
Abstract
Modified pigments including an organic group containing a 5-membered heteroaromatic ring, as well as related compositions, articles, and methods, are disclosed. The diazonium salts containing a 5-membered heteroaromat is ring exhibit enhanced activity in modifying pigments, thereby resulting in modified pigments with a higher treatment level and improved dispersibility in an ink composition.
Claims34
1-22. (canceled)
A method, comprising:
- reacting a pigment with a diazonium salt comprising, a 5-membered heteroaromatie ring and a diazonium group directly bonded to the 5-membered heteroaromatie ring, thereby forming a modified pigment that comprises the 5-membered hoteroaromatie ring;
- wherein the 5-inembered heteroaromatic ring comprises three ring heteroatoms, at least. two of which are nitrogen atoms.
A method, comprising:
- reacting a pigment with a diazonium salt comprising a 5-membered heteroarornatic ring, thereby forming, a modified pigment that comprises the 5-1flembered heteroaromatic ring:
- wherein the diazonitim salt comprises a cation of formula (Ha):
- in which
- X is O, N(Ra) or S:
- and
- each of R1 and R2, independently, is H, C1-C 10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, C3-C20 cycloalkyl, C3-C20 cycloalkenyl, C1-C20 heterocycloalkyl, C1-C20 heterocycloalkenyl, aryl, heteroaryl, halo, cyano, ORb, COORb, OC(O)Rb, C(O)Rb, C(O)NRb, Rc, NRbRc, or N+(RbRcRd)Y, each of Ra, RbRc, and Rd, independently, being, H, C1-C10 alkyl, C3-C20 cycloalkyl, C1-C20 heteroeyeloalkyl, aryl, or heteroaryl and Y being an anion;
- provided that at least one of R1 and R2 is not H.
4 more elements
An ink composition, comprising:
- a liquid vehicle;
- and
- a material comprising a pigment and an organic group bonded to the pigment, the organic group comprising only one aromatic ring and the only one aromatic ring being a 5-membered heteroaroinatic ring;
- wherein the 5-membered heteroaromatie ring comprises three ring heleroatoms, at least two of which are nitrogen atoms.
1 more element
A composition, comprising:
- a pigment;
- and
- an organic group bonded to the pigment, the organic group comprising only one aromatic ring and the only one aromatic ring being a 5-membered heteroaromatic ring;
- wherein the 5-membered heteroaromatic rirw, comprises three ring heteroatoms, at least two of which are nitrogen atoms.
1 more element
(canceled)
An ink composition, comprising:
- a liquid vehicle;
- and
- a material comprising a pigment and an organic group bonded to the pigment;
- wherein the organic group is of formula (IIb):
- wherein
- X is O, N(Ra), or S;
- and
- each of R1 and R2, independently, is H, C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, C3-C20 cycloalkyl, C3-C20 cycloalkenyl, C1-C20 heterocycloalkyl, C1-C20heterocycloalkenyl, aryl, heteroaryl, halo, cyano, ORb, COORb, OC(O)Rb, C(O)Rb, C(O )NRbRc, SO3Rc, NRbRc, or N+(RbRcRd)Y, each of Ra, Rb, Rc, and Rd, independently, being H, C1-C10 alkyl, C3-C20 cycloalkyl, C1-C20 heterocycloalkyl, aryl, or heteroaryl and Y being an anion;
- provided that at least one of R1 and R2 is not H.
6 more elements
A composition, comprising:
- a pigment;
- and
- an organic group bonded to the piktment the organic group being of formula (IIb):
- wherein
- X is O, N(Ra), or S;
- and
- each of R1 and R2, independently, is H, C1-C10 alkyl, C2-C10, alkenyl, C2-C10 alkynyl, C3-C20 cycloalkyl, C3-C20 cycloalkenyl, C1-C20 heterocycloalkyl, C1-C20 heterocycloalkenyi, aryl, heteroaryl, halo, cyano, ORbCOORb, OC(O)Rb, C(O)Rb, C(O)NRbRc, SO3Rc, NRbRc, or N+(RbRcRd)Y each of Ra, Rb, Rc, and Rd, independently, being H, C1-C10 alkyl, C3-C20 cycloalkyl, C1-C20 heterocycloalkyl, aryl, or heteroaryl and Y being an anion;
- provided that at least one of R1 and R2 is not H.
5 more elements
46-52. (canceled)
Dependencies are inferred from the claim text.