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US3203752A
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Aftertreatment of dyed polypropylene fibers containing a metal compound with metal complexes
Assignee: Imperial Chemical Industries Ltd
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Filing: 1962-12-17
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Granted: 1965-08-31
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Expires: 1982-12-17
Abstract
No abstract record available.
Inventors
- 👤 Mills Walter Percival
- 👤 O'neill William Alexander
- 👤 Price Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:53
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/02; D06P5/04; D06P5/06; D06P3/00; D06P3/005; D06P3/79; D06P3/795; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR IMPROVING DYEINGS OF DYESTUFFS SELECTED FROM THE CLASS CONSISTING OF METALLISABLE DYESTUFFS OF THE MONOAZO- AND ANTHRAQUIONE SERIES ON STEREOREGULAR POLYPROPYLENE FIBRES CONTAINING METAL COMPOUNDS SELECTED FROM THE CLASS CONSISTING OF ZINC, CALCIUM, MAGNESIUM AND ALUMINUM SALTS OF EIGHT TO EIGHTEEN CARBON ATOM CARBOXYLIC ACIDS WHICH COMPRISES IMMERSING SAID DYEINGS IN AN AQUEOUS DISPERSION OF A METAL COMPLEX SELECTED FROM THE CLASS CONSISTING OF CHROMIUM, COBALT, NICKEL AND COPPER COMPLEXES AND CHELATING AGENTS, WHICH CHELATING AGENTS YIELD ZINC COMPLEXES HAVING STABILITY CONSTANTS OF AT LEAST 4.0 AND AT MOST 12.0, AT A TEMPERATURE BETWEEN 70* AND 120*C.
Claim 2
Dependent Claim
100 words
A PROCESS FOR IMPROVING DYEINGS OF DYESTUFFS SELECTED FROM THE CLASS CONSISTING OF METALLISABLE DYESTUFFS OF THE MONOAZO- AND ANTHRAQUIONE SERIES ON STEREOREGULAR POLYPROPYLENE FIBRES CONTAINING METAL COMPOUNDS SELECTED FROM THE CLASS CONSISTING OF ZINC, CALCIUM, MAGNESIUM AND ALUMINUM SALTS OF EIGHT TO EIGHTEEN CARBON ATOM CARBOXYLIC ACIDS WHICH COMPRISES IMMERSING SAID DYEINGS IN AN AQUEOUS DISPERSION OF A METAL COMPLEX SELECTED FROM THE CLASS CONSISTING OF CHROMIUM, COBALT, NICKEL AND COPPER COMPLEXES AND CHELATING AGENTS, WHICH CHELATING AGENTS YIELD ZINC COMPLEXES HAVING STABILITY CONSTANTS OF AT LEAST 4.0 AND AT MOST 12.0, AT A TEMPERATURE BETWEEN 70* AND 120*C.
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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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |