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US4400515A
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Quinacridone mixtures, process for their manufacture and their use as pigments
Assignee: Hoechst AG
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Filing: 1981-02-23
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Granted: 1983-08-23
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Expires: 2001-02-23
Abstract
Abstract Compositions of linear trans-quinacridones containing at least one component (I) selected from unsubstituted, chloro- and methyl-substituted quinacridone and at least one component (II) selected from bis-(carbamoyl)-quinacridones, the carbamoyl groups of which are unsubstituted, N-mono-alkyl substituted or N,N-dialkyl-substituted, are pigments useful for coloring plastics and especially lacquers. These compositions are preferably prepared by joint ring closure of the corresponding 2,5-dianilino-terephthalic acids or esters.
Inventors
- 👤 Otto Fuchs
- 👤 Adolf Kroh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:53
CPC Classifications
C; C07; C07D; C07D471/00; C07D471/02; C07D471/04; C09; C09B; C09B48/00
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
81 words
A composition of matter comprising 30 to 95% of at least one component of the formula (I) ##STR7## wherein R 1 and R 2 are the same or different and each is hydrogen, chlorine or methyl, and 5 to 70% of at least one component of the formula (II) ##STR8## wherein R 3 is --NH--R 4 or --N(R 5 ) 2 , R 4 being hydrogen or alkyl of 1 to 6 carbon atoms and R 5 being methyl or ethyl.
Claim 2
Dependent Claim
81 words
A composition of matter comprising 30 to 95% of at least one component of the formula (I) ##STR7## wherein R 1 and R 2 are the same or different and each is hydrogen, chlorine or methyl, and 5 to 70% of at least one component of the formula (II) ##STR8## wherein R 3 is --NH--R 4 or --N(R 5 ) 2 , R 4 being hydrogen or alkyl of 1 to 6 carbon atoms and R 5 being methyl or ethyl.
Claim 3
Dependent Claim
25 words
A composition as claimed in claim 1, containing 30 to 95% by weight of component(s) (I) and 5 to 70% by weight of component(s) (II).
Claim 4
Dependent Claim
25 words
A composition as claimed in claim 1, containing 50 to 95% by weight of component(s) (I) and 5 to 50% by weight of component(s) (II).
Claim 5
Dependent Claim
12 words
A composition as claimed in claim 1, wherein component (I) is 2,9-dimethyl-quinacridone.
Claim 6
Dependent Claim
30 words
A composition as claimed in claim 4, wherein component (II) is a 2,9-bis-carbamoyl-quinacridone, the carbamoyl groups of which are unsubstituted, monosubstituted by ethyl, n-butyl or n-hexyl, or disubstituted by methyl.
Claim 7
Dependent Claim
12 words
A composition as claimed in claim 4, wherein component (II) is 2,9-bis-(carbamoyl)-quinacridone.
Claim 8
Dependent Claim
12 words
A composition as claimed in claim 4, wherein component (II) is 2,9-bis-(N-n-hexyl-carbamoyl)-quinacridone.
Claim 9
Dependent Claim
12 words
A composition as claimed in claim 4, wherein component (II) is 2,9-bis-(N-n-butyl-carbamoyl)-quinacridone.
Claim 10
Dependent Claim
12 words
A composition as claimed in claim 4, wherein component (II) is 2,9-bis-(N-ethyl-carbamoyl)-quinacridone.
Claim 11
Dependent Claim
12 words
A composition as claimed in claim 4, wherein component (II) is 2,9-bis-(N,N-dimethyl-carbamoyl)-quinacridone.
Claim 12
Dependent Claim
26 words
A composition as claimed in claim 4, wherein components (II) are a mixture of 3,10-, 1,8- and 1,10-bis-(N-methyl-carbamoyl)-quinacridone as obtained by ring-closure of 2,5-bis-m-(N-methyl-carbamoyl)-anilino terephthalic acid.
Claim 13
Dependent Claim
23 words
A composition as claimed in claim 6, consisting of 85% by weight of component (I) and of 15% by weight of component (II).
Claim 14
Dependent Claim
24 words
A composition as claimed in claim 7, consisting of about 66.7% by weight of component (I) and about 33.3% by weight of component (II).
Claim 15
Dependent Claim
24 words
A composition as claimed in claim 8, consisting of about 59% by weight of component (I) and about 41% by weight of component (II).
Claim 16
Dependent Claim
24 words
A composition as claimed in claim 9, consisting of about 66.7% by weight of component (I) and about 33.3% by weight of component (II).
Claim 17
Dependent Claim
24 words
A composition as claimed in claim 10, consisting of about 66.7% by weight of component (II) and about 33.3% by weight of component (II).
Claim 18
Dependent Claim
28 words
A composition as claimed in claim 11, consisting of about 84.5% by weight of component (I) and of about 15.5% by weight of the mixture of components (II).
Claim 19
Dependent Claim
23 words
A composition as claimed in claim 6, consisting of 94% by weight of component (I) and of 6% by weight of component (II).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-22 | 1987-02-21 | 1987-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-22 | 1991-02-21 | 1991-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-22 | 1995-02-21 | 1995-08-23 | $7700.00 | Window Closed / Lapsed |