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US3897439A Expired / Lapsed US ⏱️ 0.0 years remaining

Certain isoindolinone pigments containing heavy metals

Assignee: Novartis Corp
•
Filing: 1973-11-21
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Granted: 1975-07-29
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Expires: 1993-11-21
📄 Original PDF 🌐 Google Patents

Abstract

Abstract Isoindolinone pigments of the formula WHEREIN M denotes a polyvalent metal atom other than an alkaline earth, R denotes an organic radical, X denotes an O or S atom or an imino group, X1 and Y1 denote H or halogen atoms, alkyl, alkoxy, alkoxycarbonyl, alkylsulphonyl or alkylcarbamoyl groups containing 1-6 C atoms, or nitro, carbamoyl or aralcarbamoyl groups, or the radicals X1 and Y1 form a fused benzene ring, X2 denotes an H atom, Y denotes a halogen atom and Z denotes a nitro, a carbamoyl or phenylcarbamoyl group, an alkylcarbamoyl group having 2-6 C atoms, or a group of the formula R1Y2, wherein R1 represents an H atom, an alkyl or cycloalkyl group containing 1-6 C atoms or an aralkyl or aryl group and Y2 represents an O or S atom, m denotes 0-4, n denotes 0-4 and p denotes 0-3 and the sum of m+n+p must be 4, are useful for coloring plastics and lacquers in yellow to orange shades of excellent fastness properties.

Inventors

  • 👤 Christoph Frey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 17:33
CPC Classifications
C; C09; C09B; C09B57/00; C09B57/04

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 6 words
AN ISOINDOLINONE PIGMENT OF THE FORMULA
Claim 2
Dependent Claim 6 words
AN ISOINDOLINONE PIGMENT OF THE FORMULA
Claim 3
Dependent Claim 10 words
An isoindolinone pigment according to claim 1, of the formula
Claim 4
Dependent Claim 13 words
An isoindolinone pgiment according to claim 2, wherein X is an imino group.
Claim 5
Dependent Claim 9 words
The compounds according to claim 1 of the formula
Claim 6
Dependent Claim 9 words
The compound according to claim 1 of the formula
Claim 7
Dependent Claim 9 words
The compound according to claim 1 of the formula
Claim 8
Dependent Claim 9 words
The compound according to claim 1 of the formula
Claim 9
Dependent Claim 9 words
The compound according to claim 1 of the formula

References Cited (Backward Citations)

US3256291A Cited
US3481945A Cited
US3678007A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-07-28 1979-01-27 1979-07-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-07-28 1983-01-27 1983-07-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-07-28 1987-01-27 1987-07-29 $7700.00 Window Closed / Lapsed

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