US4278601A
Expired / Lapsed
US
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Process for conditioning phthalocyanine pigment
Assignee: BASF Corp
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Filing: 1979-11-13
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Granted: 1981-07-14
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Expires: 1999-11-13
Abstract
Abstract A process for conditioning pigments which comprises grinding a crude copper phthalocyanine pigment and a crystallizing solvent in the absence of inorganic salt but in the presence of one or more sulphonated phthalocyanine amine derivative having the general formula ##STR1## wherein Pc is a phthalocyanine, R 1 , R 3 and R 4 are hydrogen or a hydrocarbon residue, R 2 is a hydrocarbon residue, p is 0 to 3, q is 1 to 4, and the sum of p and q is 1 to 4, the resulting pigment composition is freely dischargeable from the mill in high yield and is, moreover largely in the β-form.
Inventors
- 👤 Ian R. Wheeler
- 👤 George H. Robertson
- 👤 David McGregor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:59
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0033; C09B67/0034; C09B67/0035; C09B47/00; C09B47/04; C09B47/08; C09B47/24; C09B47/26; C09B67/0032
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
146 words
A process for conditioning pigments which comprises grinding a crude copper phthalocyanine pigment and a crystallizing solvent, capable of converting alpha-form copper phthalocyanine into the beta-form thereof, in the absence of inorganic salt but in the presence of one or more sulphonated phthalocyanine amine derivatives having the general formula ##STR7## wherein Pc represents a metal or metal free phthalocyanine; R 1 , R 3 and R 4 are the same or different and are hydrogen or a residue containing 1 to 22 carbon atoms; R 2 is a residue containing 1 to 22 carbon atoms; with the proviso that the total number of carbon atoms in the sum of R 1 , R 2 , R 3 and R 4 is not greater than 66; p is 0 to 3, q is 1 to 4 and the sum of p and q is 1 to 4.
Claim 2
Dependent Claim
146 words
A process for conditioning pigments which comprises grinding a crude copper phthalocyanine pigment and a crystallizing solvent, capable of converting alpha-form copper phthalocyanine into the beta-form thereof, in the absence of inorganic salt but in the presence of one or more sulphonated phthalocyanine amine derivatives having the general formula ##STR7## wherein Pc represents a metal or metal free phthalocyanine; R 1 , R 3 and R 4 are the same or different and are hydrogen or a residue containing 1 to 22 carbon atoms; R 2 is a residue containing 1 to 22 carbon atoms; with the proviso that the total number of carbon atoms in the sum of R 1 , R 2 , R 3 and R 4 is not greater than 66; p is 0 to 3, q is 1 to 4 and the sum of p and q is 1 to 4.
Claim 3
Dependent Claim
145 words
A process as claimed in claim 1 wherein the amine moiety or moieties in the compound of the formula X are selected from C 1 -C 22 cyclic or acyclic alkyl, aryl, or aralkyl primary amines, or dehydroabietylamine, the alkyl, aryl or aralkyl groups, being optionally substituted by one or more hydroxyl groups; tertiary amines of the formula III: ##STR8## or quaternary ammonium salts having the formula ##STR9## wherein R 1 1 , R 2 1 , R 3 1 and R 4 1 each represent an alkyl, alkenyl or alkapolyenyl group, the total number of carbon atoms in the tertiary amine or quaternary ammonium salt being from 20-60, and at least one and more preferably two of the groups R 1 1 , R 2 1 , R 3 1 and R 4 1 has a backbone of at least 12 consecutive carbon atoms.
Claim 4
Dependent Claim
19 words
A process as claimed in claim 2 wherein in the formula IV Q.sup.⊖ represents a halide, acetate or hydroxide.
Claim 5
Dependent Claim
24 words
A process as claimed in claim 2 wherein the said amine moiety or moieties are derived from naturally occurring oils, fats or wood rosin.
Claim 6
Dependent Claim
13 words
A process as claimed in claim 1 wherein q is 1 to 2.5.
Claim 7
Dependent Claim
42 words
A process as claimed in claim 1 wherein the crystallising solvent is selected from aryl and aralkyl hydrocarbons such as toluene, xylene, cumene, mesitylene, octyl benzene, dodecylbenzene, aromatic amines such as aniline, N,N-dimethyl aniline, N,N-diethyl aniline and chlorinated hydrocarbons such as tetrachloroethylene.
Claim 8
Dependent Claim
34 words
A process as claimed in claim 6 wherein the amount of crystallizing solvent present is between 1 to 2.5% by weight with respect to the sum of the crude phthalocyanine and phthalocyanine derivative components.
Claim 9
Dependent Claim
39 words
A process as claimed in claim 1 wherein the amount of aminated phthalocyanine sulphonic acid of the formula I is between 2 and 15% by weight based on the total weight of crude copper phthalocyanine and copper phthalocyanine derivative.
Claim 10
Dependent Claim
21 words
A process as claimed in claim 8 wherein the amount of said copper phthalocyanine derivative present is between 6 and 12%.
Claim 11
Dependent Claim
26 words
A process as claimed in claim 1 wherein the phthalocyanine moiety of the compound of the formula I is metal free or is a metal phthalocyanine.
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) | 1984-07-13 | 1985-01-12 | 1985-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-13 | 1989-01-12 | 1989-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-13 | 1993-01-12 | 1993-07-14 | $7700.00 | Window Closed / Lapsed |