US5362780A
Expired / Lapsed
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Compositions based on 2,9-dichloroquinacridone pigments
Assignee: Dominion Colour Co Ltd
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Filing: 1993-06-15
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Granted: 1994-11-08
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Expires: 2013-06-15
Abstract
Abstract A violet quinacridone pigment composition comprising a pigmentary 2,9-dichloroquinacridone pigment having a specific surface area below 75 m 2 /g and a sulfonated indanthrone or copper phthalocyanine. The compositions have excellent fastness properties when used for pigmenting engineering plastics.
Inventors
- 👤 Fridolin Babler
- 👤 Charles G. Orange
- 👤 Edward E. Jaffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:39
CPC Classifications
C; C09; C09B; C09B48/00; C09B67/00; C09B67/0033; C08; C08K; C08K5/00; C08K5/0091; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3437; C08K5/36; C08K5/41; C08K5/42
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
54 words
A violet-colored pigment composition which comprises (A) a 2,9-dichloroquinacridone pigment having a specific surface area below 75m 2 /gram; and (B) a sulfonic acid of formula II P--(SO.sub.3 H).sub.m (II) or a salt thereof; wherein P is a blue-colored indanthrone radical or a blue-colored copper phthalocyanine radical, and m is from 0.2 to 4.0.
Claim 2
Dependent Claim
54 words
A violet-colored pigment composition which comprises (A) a 2,9-dichloroquinacridone pigment having a specific surface area below 75m 2 /gram; and (B) a sulfonic acid of formula II P--(SO.sub.3 H).sub.m (II) or a salt thereof; wherein P is a blue-colored indanthrone radical or a blue-colored copper phthalocyanine radical, and m is from 0.2 to 4.0.
Claim 3
Dependent Claim
20 words
A composition of claim 1, wherein the specific surface area of component (A) is less than 30 m 2 /gram.
Claim 4
Dependent Claim
16 words
A composition of claim 2, wherein the specific surface area is from 4-28 m 2 /gram.
Claim 5
Dependent Claim
29 words
A composition of claim 1, wherein component (B) is the sulfonic acid of formula II or an alkali metal, an alkaline earth metal or zinc or aluminum salt thereof.
Claim 6
Dependent Claim
22 words
A composition of claim 4, wherein component (B) is the sulfonic acid of formula II or a sodium or calcium salt thereof.
Claim 7
Dependent Claim
12 words
A composition of claim 1, wherein m is from 0.5 to 2.0.
Claim 8
Dependent Claim
12 words
A composition of claim 6, wherein m is from 0.9 to 1.1.
Claim 9
Dependent Claim
45 words
A composition of claim 1, wherein the composition comprises from 88 to 99.9 percent by weight of component (A) and from 0.1 to 12.0 percent by weight of component (B), the percentage by weight being based on the combined weights of components (A) and (B).
Claim 10
Dependent Claim
32 words
A composition of claim 8, wherein the composition comprises from 97 to 99.7 percent by weight of component (A) and from about 0.3 to about 3 percent by weight of component (B).
Claim 11
Dependent Claim
12 words
A composition of claim 1, wherein P is an unsubstituted indanthrone radical.
Claim 12
Dependent Claim
12 words
A composition of claim 3, wherein P is an unsubstituted indanthrone radical.
Claim 13
Dependent Claim
13 words
A composition of claim 1, wherein P is an unsubstituted copper phthalocyanine radical.
Claim 14
Dependent Claim
13 words
A composition of claim 3, wherein P is an unsubstituted copper phthalocyanine radical.
Claim 15
Dependent Claim
26 words
A process for preparing a pigmented plastic material, which comprises incorporating of an effective pigmenting amount of a composition of claim 1 into said plastic material.
Claim 16
Dependent Claim
35 words
A process of claim 14, wherein the composition is present in said plastic material in a concentration of from 0.01 to about 30 percent by weight, based on the weight of said pigmented plastic material.
Claim 17
Dependent Claim
56 words
A process of claim 14, wherein said plastic material is selected from the group consisting of cellulose ethers, cellulose esters, polyurethanes, polyesters, polycarbonates, polyolefins, polystyrene, polysulfones, polyamides, polycycloamides, polyimides, polyethers, polyether ketones, polyvinyl halides, polytetrafluoroethylene, acrylic and methacrylic polymers, rubber, silicone polymers, phenol/formaldehyde resins, melamine/formaldehyde resins, urea/formaldehyde resins, epoxy resins and diene rubbers and copolymers thereof.
Claim 18
Dependent Claim
65 words
A composition of claim 1 which further comprises from 0.05 to 20 percent by weight, based on the combined weights of components (A) and (B), of a texture improving agent selected from the group consisting of fatty acids having at least 12 carbon atoms, amides, esters or salts of said fatty acids, aliphatic 1,2-diols, epoxidized soya bean oil, waxes, resin acids and resin acid salts.
Claim 19
Dependent Claim
19 words
A composition of claim 17 wherein the texture improving agent is a rosin acid or a rosin acid salt.
Claim 20
Dependent Claim
33 words
A composition of claim 17 wherein the texture improving agent is present in an amount of from 1 to 10 percent by weight, based on the combined weights of components (A) and (B).
Claim 21
Dependent Claim
78 words
A process for the preparation of a composition of claim 1 which comprises: (a) blending an aqueous suspension comprising components (A) and (B) and from about 1 to about 10 percent by weight, based on the combined weight of components (A) and (B), of a water-soluble rosin acid salt; (b) precipitating an insoluble salt of the rosin acid by adding a divalent or trivalent metal salt to the suspension; and (c) isolating the composition by filtering the suspension.
References Cited (Backward Citations)
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