US3661611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Azo compounds
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1970-05-01
•
Granted: 1972-05-09
•
Expires: 1990-05-01
Abstract
Abstract A composition readily dispersible in an organic solvent and containing an azoacylacetarylamide and an azo compound of the formula WHEREIN X is selected from the group consisting of phenyl, diphenyl and quinoline radicals and is directly linked to the azo group through a nuclear carbon atom of said radicals, said radicals optionally carrying a substituent selected from the group consisting of chlorine, nitro, methyl and hydroxy, Y is methyl, Z is phenyl optionally substituted with a member selected from the group consisting of methoxy and methyl, R is a radical selected from the group consisting of alkyl, alkene, aminoalkyl and cyclohexyl and n is an integer of 1-2.
Inventors
- 👤 Fred Dawson
- 👤 John Mitchell
- 👤 Leslie Richard Rogers
- 👤 William Todd
- 👤 Arthur Topham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:11
CPC Classifications
C; C09; C09B; C09B43/00; C09B43/32; C09B35/00; C09B35/02; C09B35/039; C09B35/08; C09B35/10; C09B35/105; C09B39/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
9 words
The composition of claim 1 wherein R is aminoalkyl.
Claim 2
Dependent Claim
12 words
The composition of claim 2 wherein said aminoalkyl is aminoethyl or aminopropyl.
Claim 3
Dependent Claim
14 words
The composition of claim 2 wherein said aminoalkyl is a secondary or tertiary aminoalkyl.
Claim 4
Dependent Claim
12 words
The composition of claim 4 wherein said aminoalkyl is alkylaminoalkyl or dialkylaminoalkyl.
Claim 5
Dependent Claim
22 words
The composition of claim 1 wherein the azo compound is selected from the group consisting of 2-benzeneazo-3-cyclohexyliminobutyranilide, 2,2''-(3,3''-dichloro-4,4''-biphenylenedisazo)-3,3''-di-(3 -octadecylaminopropylamino)-bis-butyranilide and 2,2''-(3,3''-dichloro-4,4''-biphenylenedisazo)-3, 3''-di-(3-dimethylaminopropylimino)-bis-butyr-2-methoxyanilide.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |