US3822113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid dye and ethylene oxide condensate of an n-long chain alkyl dipropylene triamine
Assignee: Novartis AG
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Filing: 1973-05-18
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Granted: 1974-07-02
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Expires: 1993-05-18
Abstract
Abstract CHEMICAL COMPOSISTIONS ARE PROVIDED WHICH ARE USEFUL AS SURFACE ACTIVE AGENTS, AND ESPECIALLY AS AUXILLARIES MORE PARTICULARLY AS LEVELLING AGENTS IN THE DYEING OF TEXTILES THESE COMPOSITIONS ARE PRODUCED BY A PROCESS WHICH COMPRISES FIRST CYANOETHYLATING AN ALKYL AMINE TO GIVE AN NN'', DI(CYANOETHYL) DERIVATIVE, SECOND HYDROGENATING THIS DERIVATIVE TO FORM AN AMINE AND THIRD REACTING THIS AMINE WITH ETHYLENE OXIDE.
Inventors
- 👤 J Keenan
- 👤 T Jones
- 👤 N Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:30
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/653; D06P1/60; D06P1/607; D06P1/6076; D06P3/00; D06P3/02; D06P3/04; D06P3/14; D06P3/16; D06P3/24; D06P3/241; Y; Y10; Y10S; Y10S8/00; Y10S8/907; Y10S8/92; Y10S8/924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |