US5728206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface-treated organic pigments
Assignee: Covestro LLC
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Filing: 1996-12-20
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Granted: 1998-03-17
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Expires: 2016-12-20
Abstract
Abstract This invention relates to a process for preparing pigment compositions comprising (a) treating an organic pigment with (1) about 0.1 to about 100% by weight, relative to the organic pigment, of a tertiary alkyl primary amine having the formula (I) hatic group, and R2 and R3 are independently C1-C6 alkyl, (2) 0 to about 100% by weight, relative to the organic pigment, of a surfactant, and (3) about 5 to about 15 parts by weight per part by weight of the organic pigment of a liquid in which the organic pigment is substantially insoluble, thereby forming a suspension of the surface-treated pigment composition in the liquid; and (b) collecting the pigment composition.
Inventors
- 👤 Ibraheem T. Badejo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:34
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0041; C08K9/00; C08K9/04; C09; C09B; C09B67/00; C09B67/0001; C09B67/002
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
123 words
A process for preparing a pigment composition comprising (a) treating an organic pigment with (1) about 0.1 to about 100% by weight, relative to the organic pigment, of a tertiary alkyl primary amine having the formula ##STR4## wherein R 1 is a C 5 -C 30 (cyclo)aliphatic group, and R 2 and R 3 are independently C 1 -C 6 alkyl, (2) 0 to about 100% by weight, relative to the organic pigment, of a surfactant, and (3) about 5 to about 15 parts by weight per part by weight of the organic pigment of a liquid in which the organic pigment is substantially insoluble, thereby forming a suspension of the surface-treated pigment composition in the liquid; and (b) collecting the pigment composition.
Claim 2
Dependent Claim
123 words
A process for preparing a pigment composition comprising (a) treating an organic pigment with (1) about 0.1 to about 100% by weight, relative to the organic pigment, of a tertiary alkyl primary amine having the formula ##STR4## wherein R 1 is a C 5 -C 30 (cyclo)aliphatic group, and R 2 and R 3 are independently C 1 -C 6 alkyl, (2) 0 to about 100% by weight, relative to the organic pigment, of a surfactant, and (3) about 5 to about 15 parts by weight per part by weight of the organic pigment of a liquid in which the organic pigment is substantially insoluble, thereby forming a suspension of the surface-treated pigment composition in the liquid; and (b) collecting the pigment composition.
Claim 3
Dependent Claim
29 words
A process according to claim 1 wherein the organic pigment is treated with 2 to 20% by weight relative to the organic pigment, of the tertiary alkyl primary amine.
Claim 4
Dependent Claim
38 words
A process according to claim 1 wherein the tertiary alkyl primary amine is a compound having the formula ##STR5## wherein R 1 is a C 5 -C 22 aliphatic group, and R 2 and R 3 are methyl.
Claim 5
Dependent Claim
26 words
A process according to claim 1 wherein 6 to 12 parts by weight per part by weight of the organic pigment of liquid (a)(3) is used.
Claim 6
Dependent Claim
24 words
A process according to claim 1 wherein liquid (a)(3) in which the organic pigment is water, a water-miscible organic liquid, or a mixture thereof.
Claim 7
Dependent Claim
14 words
A process according to claim 1 wherein the pigment composition is collected by filtration.
Claim 8
Dependent Claim
19 words
A process according to claim 1 wherein the organic pigment is a quinacridone pigment or a metal phthalocyanine pigment.
Claim 9
Dependent Claim
124 words
A pigment composition prepared according to a process comprising (a) treating an organic pigment with (1) about 0.1 to about 100% by weight, relative to the organic pigment, of a tertiary alkyl primary amine having the formula ##STR6## wherein R 1 is a C 5 -C 30 (cyclo)aliphatic group, and R 2 and R 3 are independently C 1 -C 6 alkyl, (2) 0 to about 100% by weight, relative to the organic pigment, of a surfactant, and (3) about 5 to about 15 parts by weight per part by weight of the organic pigment of a liquid in which the organic pigment is substantially insoluble, thereby forming a suspension of the surface-treated pigment composition in the liquid; and (b) collecting the pigment composition.
Claim 10
Dependent Claim
124 words
A pigment composition prepared according to a process comprising (a) treating an organic pigment with (1) about 0.1 to about 100% by weight, relative to the organic pigment, of a tertiary alkyl primary amine having the formula ##STR6## wherein R 1 is a C 5 -C 30 (cyclo)aliphatic group, and R 2 and R 3 are independently C 1 -C 6 alkyl, (2) 0 to about 100% by weight, relative to the organic pigment, of a surfactant, and (3) about 5 to about 15 parts by weight per part by weight of the organic pigment of a liquid in which the organic pigment is substantially insoluble, thereby forming a suspension of the surface-treated pigment composition in the liquid; and (b) collecting the pigment composition.
Claim 11
Dependent Claim
131 words
A pigmented macromolecular material containing as pigment a pigment composition prepared according to a process comprising (a) treating an organic pigment with (1) about 0.1 to about 100% by weight, relative to the organic pigment, of a tertiary alkyl primary amine having the formula ##STR7## wherein R 1 is a C 5 -C 30 (cyclo)aliphatic group, and R 2 and R 3 are independently C 1 -C 6 alkyl, (2) 0 to about 100% by weight, relative to the organic pigment, of a surfactant, and (3) about 5 to about 15 parts by weight per part by weight of the organic pigment of a liquid in which the organic pigment is substantially insoluble, thereby forming a suspension of the surface-treated pigment composition in the liquid; and (b) collecting the pigment composition.
Claim 12
Dependent Claim
131 words
A pigmented macromolecular material containing as pigment a pigment composition prepared according to a process comprising (a) treating an organic pigment with (1) about 0.1 to about 100% by weight, relative to the organic pigment, of a tertiary alkyl primary amine having the formula ##STR7## wherein R 1 is a C 5 -C 30 (cyclo)aliphatic group, and R 2 and R 3 are independently C 1 -C 6 alkyl, (2) 0 to about 100% by weight, relative to the organic pigment, of a surfactant, and (3) about 5 to about 15 parts by weight per part by weight of the organic pigment of a liquid in which the organic pigment is substantially insoluble, thereby forming a suspension of the surface-treated pigment composition in the liquid; and (b) collecting the pigment composition.
Claim 13
Dependent Claim
131 words
A pigmented coating composition containing as pigment a pigment composition prepared according to a process comprising (a) treating an organic pigment with (1) about 0.1 to about 100% by weight, relative to the organic pigment, of a tertiary alkyl primary amine having the formula ##STR8## wherein R 1 is a C 5 -C 30 (cyclo)aliphatic group, and R 2 and R 3 are independently C 1 -C 6 alkyl, (2) 0 to about 100% by weight, relative to the organic pigment, of a surfactant, and (3) about 5 to about 15 parts by weight per part by weight of the organic pigment of a liquid in which the organic pigment is substantially insoluble, thereby forming a suspension of the surface-treated pigment composition in the liquid; and (b) collecting the pigment composition.
Claim 14
Dependent Claim
131 words
A pigmented coating composition containing as pigment a pigment composition prepared according to a process comprising (a) treating an organic pigment with (1) about 0.1 to about 100% by weight, relative to the organic pigment, of a tertiary alkyl primary amine having the formula ##STR8## wherein R 1 is a C 5 -C 30 (cyclo)aliphatic group, and R 2 and R 3 are independently C 1 -C 6 alkyl, (2) 0 to about 100% by weight, relative to the organic pigment, of a surfactant, and (3) about 5 to about 15 parts by weight per part by weight of the organic pigment of a liquid in which the organic pigment is substantially insoluble, thereby forming a suspension of the surface-treated pigment composition in the liquid; and (b) collecting the pigment composition.
Claim 15
Dependent Claim
131 words
A pigmented printing ink containing as pigment a pigment composition prepared according to a process comprising (a) treating an organic pigment with (1) about 0.1 to about 100% by weight, relative to the organic pigment, of a tertiary alkyl primary amine having the formula ##STR9## wherein R 1 is a C 5 -C 30 (cyclo)aliphatic group, and R 2 and R 3 are independently C 1 -C 6 alkyl, (2) 0 to about 100% by weight, relative to the organic pigment, of a surfactant, and (3) about 5 to about 15 parts by weight per part by weight of the organic pigment of a liquid in which the organic pigment is substantially insoluble, thereby forming a suspension of the surface-treated pigment composition in the liquid; and (b) collecting the pigment composition.
Claim 16
Dependent Claim
131 words
A pigmented printing ink containing as pigment a pigment composition prepared according to a process comprising (a) treating an organic pigment with (1) about 0.1 to about 100% by weight, relative to the organic pigment, of a tertiary alkyl primary amine having the formula ##STR9## wherein R 1 is a C 5 -C 30 (cyclo)aliphatic group, and R 2 and R 3 are independently C 1 -C 6 alkyl, (2) 0 to about 100% by weight, relative to the organic pigment, of a surfactant, and (3) about 5 to about 15 parts by weight per part by weight of the organic pigment of a liquid in which the organic pigment is substantially insoluble, thereby forming a suspension of the surface-treated pigment composition in the liquid; and (b) collecting the pigment composition.
References Cited (Backward Citations)
US3342828A
Cited
US4238386A
Cited
US4250079A
Cited
US4588576A
Cited
JPS63305172A
Cited
US4929279A
Cited
EP0544441A1
Cited
US5362780A
Cited
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