US4614547A
Expired / Lapsed
US
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Azine pigments
Assignee: Bayer AG
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Filing: 1985-08-19
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Granted: 1986-09-30
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Expires: 2005-08-19
Abstract
Abstract Pigments which, in one of their tautomeric forms, have the formula <IMAGE> in which R signifies -CH3 or <IMAGE> and which, in the event that R is -CH3, are present in the beta -modification which is characterized by the lattice plane spacings d/ ANGSTROM 13.33, 12.67, 9.17 and 15.15 having the relative intensities 100, 100, 60 and 2%, process for their preparation and their use.
Inventors
- 👤 Rutger Neeff, deceased
- 👤 Meinhard Rolf
- 👤 Walter Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:09
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0025; C09B57/00; C09B57/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
59 words
Pigments which, in one of their tautomeric forms, have the formula ##STR12## in which R signifies --CH 3 or ##STR13## and which, in the event that R is --CH 3 , are present in the β-modification which is characterised by the lattice plane spacings d/Å 13.33, 12.67, 9.17 and 15.15 having the relative intensities 100, 100, 60 and 2%.
Claim 2
Dependent Claim
59 words
Pigments which, in one of their tautomeric forms, have the formula ##STR12## in which R signifies --CH 3 or ##STR13## and which, in the event that R is --CH 3 , are present in the β-modification which is characterised by the lattice plane spacings d/Å 13.33, 12.67, 9.17 and 15.15 having the relative intensities 100, 100, 60 and 2%.
Claim 3
Dependent Claim
29 words
Pigment according to claim 1 where R=--CH 3 , characterised by the standard tristimulus values (by DIN No. 5,033) x=26.64, Y=15.36 and Z=4.09 and a hue angle of 33.7°.
Claim 4
Dependent Claim
32 words
β-Modification of the pigment according to claim 1 where R= ##STR14## characterised by the lattice plane spacings d/Å 13.07, 12.43, 15.75 and 3.28 having the relative intensities 100, 100, 70 and 60%.
Claim 5
Dependent Claim
28 words
Pigment according to claim 1 where R= ##STR15## characterised by the standard tristimulus values (by DIN No. 5,033) X=25.75, Y=15.00 and Z=4.25 and a hue angle of 33.3°.
Claim 6
Dependent Claim
31 words
α-Modification of the pigment according to claim 1 where R= ##STR16## characterised by the lattice plane spacings d/Å 10.92, 3.81, 3.17, 12.89 having the relative intensities 100, 80, 40 and 5%.
Claim 7
Dependent Claim
28 words
Pigment according to claim 1 where R= ##STR17## characterised by the standard tristimulus values (by DIN No. 5,033) X=32.40, Y=20.04 and Z=4.13 and a hue angle of 41.0°.
Claim 8
Dependent Claim
32 words
Process for preparing the β-modification of pigments according to claim 1, characterised in that the α-modification of the pigments is heated to 140°-250° C. in the absence or presence of a diluent.
Claim 9
Dependent Claim
16 words
Process for pigmenting macromolecular organic substances, characterised in that pigments according to claim 1 are used.
Claim 10
Dependent Claim
15 words
Process for pigmenting automotive paints, characterised in that pigments according to claim 1 are used.
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) | 1989-09-29 | 1990-03-31 | 1990-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-29 | 1994-03-31 | 1994-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-29 | 1998-03-31 | 1998-09-30 | $7700.00 | Window Closed / Lapsed |