Patent US5264032A successfully refreshed from Google Patents.
US5264032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment preparations
Assignee: Clariant Produkte Deutschland GmbH
•
Filing: 1992-10-21
•
Granted: 1993-11-23
•
Expires: 2012-10-21
Abstract
Abstract Pigment preparation essentially comprising a) at least one pigment from the class of azo, anthrapyrimidine, anthanthrone, quinacridone, perinone, diketopyrrolopyrrole, dioxazine, flavanthrone, indanthrone, isoindolinone, isoviolanthrone, perylene, phthalocyanine, pyranthrone or thioindigo pigments or a mixture of pigments belonging to various classes, and b) at least one dispersant of the formula (I) ##STR1## in which P, independently of the pigments mentioned in a), is a radical of an anthanthrone azo, quinacridone, perinone, diketopyrrolopyrrole, dioxazine, indanthrone, perylene, phthalocyanine or thioindigo pigment, R 1 and R 2 , independently of one another, are hydrogen, halogen, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or nitro, and n is a number from 1 to 4, and their use for pigmenting of high-molecular-weight materials in the form of plastic compositions, melts, spinning solutions, varnishes, in particular of polyurethane-based aqueous varnishes or low-solvent high-solid acrylic varnishes, coating compositions and printing inks, in particular based on nitrocellulose.
Inventors
- 👤 Erwin Dietz
- 👤 Manfred Urban
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:02
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0033; C09B67/006; D; D06; D06P; D06P1/00; D06P1/44
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
135 words
A pigment preparation consisting/essentially of a) at least one pigment from the class of azo, anthrapyrimidine, anthanthrone, quinacridone, perinone, diketopyrrolopyrrole, dioxazine, flavanthrone, indanthrone, isoindolinone, isoviolanthrone, perylene, phthalocyanine, pyranthrone or thioindigo pigments or a mixture of pigments belonging to various of the abovementioned classes, and b) at least one dispersant of the formula (I) ##STR14## in which P, independently of the pigments mentioned in a), is a radical of an azo, anthanthrone, quinacridone, perinone, diketopyrrolopyrrole, dioxazine, indanthrone, perylene, phthalocyanine or thioindigo pigment, R 1 and R 2 , independently of one another, are hydrogen, halogen, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or nitro, and n is a number from 1 to 4, and in which the CH 2 group of the saccharin radical is bound to an aromatic carbon atom of P.
Claim 2
Dependent Claim
135 words
A pigment preparation consisting/essentially of a) at least one pigment from the class of azo, anthrapyrimidine, anthanthrone, quinacridone, perinone, diketopyrrolopyrrole, dioxazine, flavanthrone, indanthrone, isoindolinone, isoviolanthrone, perylene, phthalocyanine, pyranthrone or thioindigo pigments or a mixture of pigments belonging to various of the abovementioned classes, and b) at least one dispersant of the formula (I) ##STR14## in which P, independently of the pigments mentioned in a), is a radical of an azo, anthanthrone, quinacridone, perinone, diketopyrrolopyrrole, dioxazine, indanthrone, perylene, phthalocyanine or thioindigo pigment, R 1 and R 2 , independently of one another, are hydrogen, halogen, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or nitro, and n is a number from 1 to 4, and in which the CH 2 group of the saccharin radical is bound to an aromatic carbon atom of P.
Claim 3
Dependent Claim
25 words
A pigment preparation as claimed in claim 1, which contains at least one pigment from the class of indanthrone, perylene, quinacridone, phthalocyanine or perinone pigments.
Claim 4
Dependent Claim
40 words
A pigment preparation as claimed in claim 1, which contains at least one dispersant of the formula (I) in which the radical P, independently of the pigments used, is a radical of an indanthrone, perylene, quinacridone, phthalocyanine or perinone pigment.
Claim 5
Dependent Claim
17 words
A pigment preparation as claimed in claim 1, wherein n is a number from 1 to 3.6.
Claim 6
Dependent Claim
17 words
A pigment preparation as claimed in claim 1, wherein R 1 and R 2 are each hydrogen.
Claim 7
Dependent Claim
68 words
A pigment preparation as claimed in claim 1, consisting essentially of a) 99.5 to 70% by weight of at least one of the pigments mentioned; b) 0.5 to 30% by weight of at least one of the dispersants mentioned; c) 0 to 10% by weight of one or more surfactants, the proportions of the components being based in each case on the total weight of the pigment preparation.
Claim 8
Dependent Claim
72 words
A pigment preparation as claimed in at least one of claim 1, consisting essentially of a) 95 to 80% by weight of at least one of the pigments mentioned; b) 5 to 20% by weight of at least one of the dispersants mentioned; c) 0 to 5% by weight of one or more surfactants, the proportions of the components being based in each case on the total weight of the pigment preparation.
Claim 9
Dependent Claim
29 words
A pigment preparation as claimed in claim 1, wherein the content of the dispersants(s) is between 0.5 and 30% by weight relative to the weight of the pigment(s) used.
Claim 10
Dependent Claim
28 words
A pigment preparation as claimed in claim 1, wherein the content of the dispersant(s) is between 1to 15% by weight relative to the weight of the pigment(s) used.
Claim 11
Dependent Claim
17 words
A pigment preparation as claimed in claim 1, consisting essentially of only one pigment and one dispersant.
Claim 12
Dependent Claim
31 words
A pigment preparation as claimed in claim 1, wherein the pigments on which the radical P of the dispersant is based and the pigments used both belong to the same class.
Claim 13
Dependent Claim
87 words
A dispersant of formula (I) ##STR15## in which P, independently of the pigments mentioned in a), is a radical of an azo, anthanthrone, quinacridone, perinone, diketopyrrolopyrrole, dioxazine, indanthrone, perylene, phthalocyanine or thioindigo pigment, R 1 and R 2 , independently of one another, are hydrogen, halogen, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or nitro, and n is a number from 1 to 4, and in which the CH 2 group of the saccharin radical is bound to an aromatic carbon atom of P.
Claim 14
Dependent Claim
87 words
A dispersant of formula (I) ##STR15## in which P, independently of the pigments mentioned in a), is a radical of an azo, anthanthrone, quinacridone, perinone, diketopyrrolopyrrole, dioxazine, indanthrone, perylene, phthalocyanine or thioindigo pigment, R 1 and R 2 , independently of one another, are hydrogen, halogen, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or nitro, and n is a number from 1 to 4, and in which the CH 2 group of the saccharin radical is bound to an aromatic carbon atom of P.
Claim 15
Dependent Claim
16 words
A dispersant as claimed in claim 12, wherein R 1 and R 2 are each hydrogen.
Claim 16
Dependent Claim
16 words
A dispersant as claimed in claim 12, wherein n is a number from 1 to 3.6.
Claim 17
Dependent Claim
62 words
A process of the preparation of a dispersant as claimed in claim 12, which comprises condensing the organic pigment on which the radical P is based with the corresponding saccharin derivative and formaldehyde or a formaldehyde-releasing compound or with the corresponding N-methylol derivative of saccharin in the presence of a condensing agent at a temperature of between 0° C. and 150° c.
Claim 18
Dependent Claim
17 words
A process as claimed in claim 15, wherein the condensing agent is sulfuric acid or polyphosphoric acid.
Claim 19
Dependent Claim
22 words
Method of pigmenting high-molecular-weight materials by adding a pigment preparation as claimed in claim 1 to the high-molecular-weight material to be pigmented.
Claim 20
Dependent Claim
28 words
Method of pigmenting as claimed in claim 17 wherein the high-molecular-weight materials are in the form of plastics compositions, melts, spinning solutions, varnishes, coating compositions or printing inks.
Claim 21
Dependent Claim
22 words
Method of pigmenting as claimed in claim 18 wherein the varnishes are highly polar, aqueous polyurethane-based varnishes or low-solvent high-solid acrylic varnishes.
Claim 22
Dependent Claim
16 words
Method of pigmenting as claimed in claim 18 wherein the printing inks are based on nitrocellulose.
References Cited (Backward Citations)
US3650792A
Cited
US4536219A
Cited
EP0243304A2
Cited
US4986852A
Cited
US5004588A
Cited
US5071483A
Cited
US5071482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-11-22 | 1997-05-24 | 1997-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-22 | 2001-05-24 | 2001-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-22 | 2005-05-24 | 2005-11-23 | $7700.00 | Window Closed / Lapsed |