US5482548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment compositions
Assignee: BASF Corp
•
Filing: 1994-10-25
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Granted: 1996-01-09
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Expires: 2014-10-25
Abstract
Abstract The present invention provides a pigment composition comprising a diarylide pigment, a monoprimary amine, a diprimary amine and an inorganic compound having active oxide or hydroxide surfaces.
Inventors
- 👤 John A. Stirling
- 👤 Edward J. Anderson
- 👤 Carol J. Farnocchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:28
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0033; C09B67/0001; C09B67/002; C09C; C09C3/00; C09C3/08; C09D; C09D11/00; C09D11/02; C09D11/03; C09D11/037
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
23 words
A pigment composition comprising a diarylide pigment, a monoprimary amine, a diprimary amine and an inorganic compound having active oxide or hydroxide surfaces.
Claim 2
Dependent Claim
23 words
A pigment composition comprising a diarylide pigment, a monoprimary amine, a diprimary amine and an inorganic compound having active oxide or hydroxide surfaces.
Claim 3
Dependent Claim
16 words
A composition as claimed in claim 1 in which the diarylide pigment is Pigment Yellow 12.
Claim 4
Dependent Claim
26 words
A composition as claimed in claim 1 in which the monoprimary amine is one having a long chain alkyl group of 10 to 24 carbon atoms.
Claim 5
Dependent Claim
44 words
A composition as claimed in claim 1 in which the diprimary amine is one having the general formula I H.sub.2 N--A--(NHCH.sub.2 CH.sub.2).sub.n --NH.sub.2 (I) in which A is an alkylene group having 2 to 8 carbon atoms and n is from 0 to 8.
Claim 6
Dependent Claim
15 words
A composition as claimed in claim 4 in which the diprimary amine is tetraethylene pentamine.
Claim 7
Dependent Claim
26 words
A composition as claimed in claim 1 in which the inorganic compound having active oxide or hydroxide surfaces is added as such or formed in situ.
Claim 8
Dependent Claim
26 words
A composition as claimed in claim 6 in which the inorganic compound is, or is derived from titanium dioxide, magnesium sulphate, aluminium sulphate or butyl titanate.
Claim 9
Dependent Claim
23 words
A composition as claimed in claim 1 in which the amount of monoprimary amine is from 5 to 30% by weight of pigment.
Claim 10
Dependent Claim
23 words
A composition as claimed in claim 8 in which the mount of monoprimary mine is from 15 to 25% by weight of pigment.
Claim 11
Dependent Claim
23 words
A composition as claimed in claim 1 in which the mount of diprimary mine is from 1 to 15% by weight of pigment.
Claim 12
Dependent Claim
23 words
A composition as claimed in claim 10 in which the mount of diprimary mine is from 1.5 to 8% by weight of pigment.
Claim 13
Dependent Claim
23 words
A composition as claimed in claim 1 in which the mount of inorganic compound is from 0.1 to 10% by weight of pigment.
Claim 14
Dependent Claim
23 words
A composition as claimed in claim 12 in which the mount of inorganic compound is from 2.5 to 10% by weight of pigment.
Claim 15
Dependent Claim
35 words
A process for preparing a pigment composition as claimed in claim 1 which comprises adding the monoprimary amine, diprimary mine and inorganic compound to the pigment before, during or after completion of the pigment synthesis.
Claim 16
Dependent Claim
39 words
A process as claimed in claim 14 in which the pigment synthesis is carded out in the presence of a diprimary mine, a monoprimary amine is added after the synthesis is complete, followed by addition of the inorganic compound.
Claim 17
Dependent Claim
13 words
An ink containing, as colourant, a pigment composition as claimed in claim 1.
References Cited (Backward Citations)
GB1472781A
Cited
US4515639A
Cited
EP0062304A1
Cited
US4462833A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-01-08 | 1999-07-10 | 2000-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-08 | 2003-07-10 | 2004-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-08 | 2007-07-10 | 2008-01-09 | $7700.00 | Window Closed / Lapsed |