Patent US3895041A successfully refreshed from Google Patents.
US3895041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallised pigments
Assignee: Novartis Corp
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Filing: 1973-03-15
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Granted: 1975-07-15
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Expires: 1993-03-15
Abstract
Abstract An unsymmetrical compound having either the formula: WHEREIN M is a transition metal atom, X and Y are the same or different, and each is hydrogen or each represents a non water solubilising group, and Z has the same significance as X and Y, or two adjacent X groups or two adjacent Y groups or two adjacent Z groups form a fused arylene, and k, m and n are the same or different and each is an integer from 1 to 4; or the formula: WHEREIN M, X, Y, m and k have their previous significance, R1 and R11 are the same or different and each is an alkyl residue having from 1 to 4 carbon atoms or an aryl residue and R111 is hydrogen or an arylazo residue.
Inventors
- 👤 Eric Richard Inman
- 👤 James Mcgeachie Mccrae
- 👤 John Andrew Stirling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:31
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091; C09; C09B; C09B55/00; C09B55/002; C09B55/005; C09B55/007
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
7 words
AN UNSYMMETRICAL COMPOUND HAVING EITHER THE FORMULA:
Claim 2
Dependent Claim
7 words
AN UNSYMMETRICAL COMPOUND HAVING EITHER THE FORMULA:
Claim 3
Dependent Claim
14 words
A compound as claimed in claim 1, wherein M is a copper or nickel.
Claim 4
Dependent Claim
51 words
A compound as claimed in claim 1, wherein X, Y and Z are non water solubilising groups selected from halogen, alkyl having from 1 to 4 carbon atoms, alkoxy having from 1 to 4 carbon atoms, nitro, carboxy or form a naphthylene ring with the group to which they are attached.
Claim 5
Dependent Claim
13 words
A compound of formula II according to claim 1 wherein R111 is hydrogen.
Claim 6
Dependent Claim
9 words
A compound according to claim 1 having the formula:
Claim 7
Dependent Claim
11 words
A compound as claimed in claim 1 and having the formula:
Claim 8
Dependent Claim
9 words
A process of producing a compound of the formula:
Claim 9
Dependent Claim
9 words
A process of producing a compound of the formula:
Claim 10
Dependent Claim
33 words
A process as claimed in claim 7, wherein the reaction between compounds III and IV is effected in solution or in a finely-dispersed suspension with good agitation, using water as the reaction medium.
Claim 11
Dependent Claim
30 words
A process as claimed in claim 7, wherein the reaction between the compounds III and IV is effected at a temperature between 50*C. and the reflux temperature of the mixture.
Claim 12
Dependent Claim
38 words
A process as claimed in claim 7, wherein the metallisation of compound V is carried out in situ or the compound V is filtered off, washed and resuspended in the same or a different solvent prior to metallisation.
Claim 13
Dependent Claim
23 words
A process as claimed in claim 7, wherein an aqueous solution of copper acetate, cuprammonium sulphate or sodium cuprotartrate is used for metallisation.
Claim 14
Dependent Claim
21 words
A process as claimed in claim 7, wherein a solution of nickel acetate tetrahydrate in dimethyl formamide is used for metallisation.
Claim 15
Dependent Claim
47 words
A process for the production of a compound of formula I or II comprising reacting a compound of formula III as defined in claim 7 with, respectively, a metal salt of an o-hydroxy aldehyde of formula IV as defined in claim 7, the salt having the formula:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |