US3767442A
Expired / Lapsed
US
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Phthalocyanines
Assignee: PRODUITS CHIMIQUES UGINE KUKLMANN
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Filing: 1971-11-22
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Granted: 1973-10-23
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Expires: 1991-11-22
Abstract
Abstract A phthalocyanine pigment mixture which contains a compound of the formula: IN WHICH Pc represents a phthalocyanine residue, the benzene nucleus A is substituted by at least one alkyl group having up to four carbon atoms, and n is a whole number from 1 to 4; process for the stabilisation of phthalocyanine pigments which comprises incorporating therewith at least one compound of formula (I); and paints, lacquers, enamels and plastic materials coloured by means of a phthalocyanine pigment mixture containing a compound of formula (I).
Inventors
- 👤 J Kienzle
- 👤 M Huille
- 👤 L Cabut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:30
CPC Classifications
C; C09; C09B; C09B68/00; C09B68/40; C09B68/44; C09B68/446; C09B47/00; C09B47/04; C09B47/08; C09B47/12; C09B47/16; C09B67/00; C09B67/0033; C09B67/0034; C09B67/0035
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
16 words
A mixture as claimed in claim 1 wherein n is 3 or 4 in formula (I).
Claim 2
Dependent Claim
22 words
A mixture as claimed in claim 1 wherein the residue Pc is copper phthalocyanine in its Alpha - or Beta - form.
Claim 3
Dependent Claim
16 words
A mixture as claimed in claim 1 wherein the residue Pc is a halogenated phthalocyanine derivative.
Claim 4
Dependent Claim
18 words
A mixture as claimed in claim 1 which comprises Alpha copper phthalocyanine and a compound of formula (I).
Claim 5
Dependent Claim
22 words
A mixture as claimed in claim 1 which comprises the monochloro derivative of Alpha copper phthalocyanine and a compound of formula (I).
Claim 6
Dependent Claim
24 words
A mixture as claimed in claim 1 which comprises 95 percent of copper phthalocyanine in a Alpha form and 5 percent of tris-(4-methyl-phenylaminomethyl)-copper phthalocyanine.
Claim 7
Dependent Claim
17 words
The mixture comprising 96 percent of copper phthalocyanine in Beta form and 4 percent of tris-(4-methyl-phenylaminomethyl)-copper phthalocyanine.
Claim 8
Dependent Claim
23 words
A mixture as claimed in claim 1 which comprises 25 parts of copper phthalocyanine in Beta form and 1 part of tris-(2,6-dimethyl-phenylaminomethyl)-copper phthalocyanine.
Claim 9
Dependent Claim
41 words
A mixture as claimed in claim 1, wherein there is 1 to 20 percent, based on the total weight of pigment to be stabilized plus the compound of formula (I), of the compound of formula (I) as defined in claim 1.
Claim 10
Dependent Claim
19 words
A process for the stabilisation of phthalocyanine pigments which comprises incorporating therewith at least one compound of the formula:
Claim 11
Dependent Claim
28 words
A process as claimed in claim 11 wherein the phthalocyanine pigment and compound of formula (I) are mixed in aqueous suspension at the ambient temperature, filtered, and dried.
Claim 12
Dependent Claim
36 words
A process as claimed in claim 11 wherein the dry phthalocyanine pigment and the compound of formula (I) are ground in the presence of a water-soluble mineral salt, the mixture dispersed in hot water and filtered.
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |