US2947700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inhibited chlorite baths and method
Assignee: Hoechst AG
•
Filing: 1956-10-02
•
Granted: 1960-08-02
•
Expires: 1976-10-02
Abstract
No abstract record available.
Inventors
- 👤 Waibel Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:26
CPC Classifications
C; C01; C01B; C01B11/00; C01B11/08; C01B11/10; D; D06; D06L; D06L4/00; D06L4/20; D06L4/22; D06L4/24; D06L4/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A METHOD OF DIMINISHING THE FORMATION OF CHLORINE DIOXIDE IN ACID SODIUM CHLORIDE BATHS USED FOR BLEACHING TEXTILE MATERIALS AND HAVING A PH OF ABOUT 2.5 TO 4.5 COMPRISING ADDING TO SAID BATHS AN AMMONIUM SALT SELECTED FROM THE GROUP CONSISTING OF AMMONIUM CHLORIDE, AMMONIUM SULPHATE, AMMONIUM CHLORATE AND AMMONIUM ACETATE IN A CONCENTRATION OF ABOUT 0.3 TO 5 GRAMS PER LITER AND FURTHER ADDING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF SULFONIC ACIDS AND CARHOXYLIC ACID CONTAINING AN ALIPHATIC RADICAL HAVING EIGHT TO EIGHTEEN CARBON ATOMS WHICH IS INTERRUPTED BY A CARBOXYLIC AMIDE GROUP AND OF SULPHONIC ACID AND CARBOXYLIC ACIDS CONTAINING AN ALIPHATIC RADICAL HAVING EIGHT TO EIGHTEEN CARBON ATOMS WHICH IS INTERRUPTED BY A CARBOXYLIC ESTER GROUP AND THE SALTS THEREOF.
Claim 2
Independent Claim
125 words
A METHOD OF DIMINISHING THE FORMATION OF CHLORINE DIOXIDE IN ACID SODIUM CHLORIDE BATHS USED FOR BLEACHING TEXTILE MATERIALS AND HAVING A PH OF ABOUT 2.5 TO 4.5 COMPRISING ADDING TO SAID BATHS AN AMMONIUM SALT SELECTED FROM THE GROUP CONSISTING OF AMMONIUM CHLORIDE, AMMONIUM SULPHATE, AMMONIUM CHLORATE AND AMMONIUM ACETATE IN A CONCENTRATION OF ABOUT 0.3 TO 5 GRAMS PER LITER AND FURTHER ADDING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF SULFONIC ACIDS AND CARHOXYLIC ACID CONTAINING AN ALIPHATIC RADICAL HAVING EIGHT TO EIGHTEEN CARBON ATOMS WHICH IS INTERRUPTED BY A CARBOXYLIC AMIDE GROUP AND OF SULPHONIC ACID AND CARBOXYLIC ACIDS CONTAINING AN ALIPHATIC RADICAL HAVING EIGHT TO EIGHTEEN CARBON ATOMS WHICH IS INTERRUPTED BY A CARBOXYLIC ESTER GROUP AND THE SALTS THEREOF.
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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) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |