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US4156616A
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US
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Pigment dispersion for use in hydrophilic and hydrophobic media
Assignee: Hoechst AG
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Filing: 1977-08-25
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Granted: 1979-05-29
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Expires: 1997-08-25
Abstract
Abstract Dispersions of inorganic and organic pigments containing an alkylene oxide adduct on long-chain aliphatic amines and an anionic surfactant having an aliphatic radical of 3 to 40 carbon atoms can easily be distributed in hydrophilic and hydrophobic media and yield colorations of high tinctorial strength and purity of shade.
Inventors
- 👤 Erwin Dietz
- 👤 Robert Gutbrod
- 👤 Michael Maikowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:49
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/006; C09D; C09D17/00
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
63 words
A pigment dispersion consisting essentially of a. a pigment, b. an alkylene oxide addition product of a long chain amine, said long chain being an alkyl or alkenyl chain of 6 to 30 carbon atoms and said addition product containing 1 to 30 ethylene oxide units, and c. an anionic surfactant having at least one aliphatic radical with 3 to 40 carbon atoms.
Claim 2
Dependent Claim
63 words
A pigment dispersion consisting essentially of a. a pigment, b. an alkylene oxide addition product of a long chain amine, said long chain being an alkyl or alkenyl chain of 6 to 30 carbon atoms and said addition product containing 1 to 30 ethylene oxide units, and c. an anionic surfactant having at least one aliphatic radical with 3 to 40 carbon atoms.
Claim 3
Dependent Claim
13 words
A pigment dispersion as claimed in claim 1, containing additionally a preservation agent.
Claim 4
Dependent Claim
21 words
A pigment dispersion as claimed in claim 1, containing additionally an agent preventing the dispersion from drying up and optionally water.
Claim 5
Dependent Claim
25 words
A dispersion as claimed in claim 1, wherein said alkylene oxide addition product is an adduct of an alkylene oxide on a primary aliphatic amine.
Claim 6
Dependent Claim
30 words
A dispersion as claimed in claim 1, wherein said alkylene oxide addition product is an ethylene oxide addition product of oleyl amine, stearylamine, tallow fatty amine or coconut fatty amine.
Claim 7
Dependent Claim
119 words
A dispersion as claimed in claim 1, wherein said surfactant has the formula ##STR2## in which R is an aliphatic radical having 3 to 40 carbon atoms, A is benzene or naphthalene which are unsubstituted or substituted by 1 or 2 aliphatic radicals having 1 to 20 carbon atoms, B is a bivalent group selected from --O--, --CO--, --SO 2 --, --NR'-- wherein R' is hydrogen or alkyl of 1 to 4 carbon atoms, or a combination of such bivalent groups, C is alkylene of 1 to 6 carbon atoms or a polyalkylene oxide chain of 1 to 30 monomer units, D is an anionic group and n 1 , n 2 and n 3 are zero or 1.
Claim 8
Dependent Claim
15 words
A dispersion as claimed in claim 6, wherein R has 6 to 22 carbon atoms.
Claim 9
Dependent Claim
29 words
A dispersion as claimed in claim 6, wherein R is alkyl or alkenyl which are unsubstituted or substituted by 3 equal or different substituents selected from hydroxy and carboxy.
Claim 10
Dependent Claim
26 words
A dispersion as claimed in claim 6, wherein A is benzene which is unsubstituted or substituted by 1 or 2 substituents selected from alkyl and alkenyl.
Claim 11
Dependent Claim
27 words
A dispersion as claimed in claim 6, wherein B is --O--, --CO--, --SO 2 --, --NR'--, --CO--O--, --O--CO--, --CO--NR'--, --NR'--CO--, --SO 2 --NR'--, or --NR'--SO 2 --.
Claim 12
Dependent Claim
35 words
A dispersion as claimed in claim 6, wherein C is alkylene of 1 to 6 carbon atoms, or a polyalkylene oxide chain consisting of 1 to 30 ethylene oxide or propylene oxide units or both.
Claim 13
Dependent Claim
21 words
A dispersion as claimed in claim 6, wherein D is --COO - , --SO 3 - or --O--SO 3 - .
Claim 14
Dependent Claim
33 words
A dispersion as claimed in claim 1 wherein, in addition to the amine addition product and anionic surfactant, a non-ionic surfactant is used which is an alkoxylated alkylphenol or an alkoxylated fatty alcohol.
Claim 15
Dependent Claim
22 words
A process for pigmenting hydrophilic and hydrophobic media which comprises incorporating in these media a pigment dispersion as claimed in claim 1.
Claim 16
Dependent Claim
84 words
A pigment disperstion consisting essentially of a. from 3% to 70% by weight of a pigment, b. from 1% to 50% by weight of an alkylene oxide addition product of a long chain amine, said long chain being an alkyl or alkenyl chain of 6 to 30 carbon atoms and said addition product containing 1 to 30 ethylene oxide units, and c. from 1% to 50% by weight of an anionic surfactant having at least one aliphatic radical with 3 to 40 carbon atoms.
Claim 17
Dependent Claim
84 words
A pigment disperstion consisting essentially of a. from 3% to 70% by weight of a pigment, b. from 1% to 50% by weight of an alkylene oxide addition product of a long chain amine, said long chain being an alkyl or alkenyl chain of 6 to 30 carbon atoms and said addition product containing 1 to 30 ethylene oxide units, and c. from 1% to 50% by weight of an anionic surfactant having at least one aliphatic radical with 3 to 40 carbon atoms.
Claim 18
Dependent Claim
93 words
A pigment dispersion containing a. from 3% to 70% by weight of a pigment, b. from 1% to 50% by weight of an alkylene oxide addition product of a long chain amine, said long chain being an alkyl or akenyl chain of 6 to 30 carbon atoms and said addition product containing 1 to 30 ethylene oxide units, and c. from 1% to 50% by weight of an anionic surfactant having at least one aliphatic radical with 3 to 40 carbon atoms, and d. a liquid medium selected from alkylene glycols and formamide.
Claim 19
Dependent Claim
93 words
A pigment dispersion containing a. from 3% to 70% by weight of a pigment, b. from 1% to 50% by weight of an alkylene oxide addition product of a long chain amine, said long chain being an alkyl or akenyl chain of 6 to 30 carbon atoms and said addition product containing 1 to 30 ethylene oxide units, and c. from 1% to 50% by weight of an anionic surfactant having at least one aliphatic radical with 3 to 40 carbon atoms, and d. a liquid medium selected from alkylene glycols and formamide.
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) | 1982-05-28 | 1982-11-27 | 1983-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-28 | 1986-11-27 | 1987-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-28 | 1990-11-27 | 1991-05-29 | $7700.00 | Window Closed / Lapsed |