US2668784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for flameproofing textile materials
Assignee: EIDP Inc
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Filing: 1951-09-04
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Granted: 1954-02-09
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Expires: 1971-09-04
Abstract
No abstract record available.
Inventors
- 👤 Dills William Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:47
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/07; D06M11/11; D06M11/22; D06M11/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A METHOD FOR TREATING A CELLULOSIC MATERIAL TO IMPART FLAME-RESISTANCE CHARACTERISTICS THERETO, COMPRISING CONTACTING SAID MATERIAL WITH AN ACIDIC AQUEOUS SOLUTION OF TITANIUM AND TERVALENT ANTIMONY DILUTED WITH A DISSOLVED, VOLATILE, INITIALLY STABLE ORGANIC LIQUID, SAID SOLUTION HAVING FROM ABOUT 12-600G./. OF COMBINED TITANIUM AND ANTIMONY OXIDES WITH THE WEIGHT TI/SB RATIO IN SAID SOLUTION NOT EXCEEDING 10 AND THE ATOMIC SB/TI RATIO NOT EXCEEDING 2 AND SAID DISSOLVED ORGANIC LIQUID BEING PRESENT IN AN AMOUNT RANGING FROM 5-70% BY WEIGHT OF THEFINAL SOLUTION, REMOVING A PORTION OF SAID ORGANIC LIQUID FROM THE RESULTING TREATED CELLULOSIC PRODUCT BY EVAPORATING SUCH PORTION THEREFROM, SUBJECTING SAID TREATED PRODUCT TO ALKALI TREATMENT TO NEUTRALIZE RESIDUAL ACID PRESENT AFTER CONTACT OF SAID MATERIAL WITH SAID SOLUTION, AND THEN WASHING THE NEUTRALIZED PRODUCT IN AQUEOUS MEDIA AND RECOVERING THE NEUTRALIZED, FLAME-RESISTANT PRODUCT FROM SAID MEDIA.
Claim 2
Independent Claim
140 words
A METHOD FOR TREATING A CELLULOSIC MATERIAL TO IMPART FLAME-RESISTANCE CHARACTERISTICS THERETO, COMPRISING CONTACTING SAID MATERIAL WITH AN ACIDIC AQUEOUS SOLUTION OF TITANIUM AND TERVALENT ANTIMONY DILUTED WITH A DISSOLVED, VOLATILE, INITIALLY STABLE ORGANIC LIQUID, SAID SOLUTION HAVING FROM ABOUT 12-600G./. OF COMBINED TITANIUM AND ANTIMONY OXIDES WITH THE WEIGHT TI/SB RATIO IN SAID SOLUTION NOT EXCEEDING 10 AND THE ATOMIC SB/TI RATIO NOT EXCEEDING 2 AND SAID DISSOLVED ORGANIC LIQUID BEING PRESENT IN AN AMOUNT RANGING FROM 5-70% BY WEIGHT OF THEFINAL SOLUTION, REMOVING A PORTION OF SAID ORGANIC LIQUID FROM THE RESULTING TREATED CELLULOSIC PRODUCT BY EVAPORATING SUCH PORTION THEREFROM, SUBJECTING SAID TREATED PRODUCT TO ALKALI TREATMENT TO NEUTRALIZE RESIDUAL ACID PRESENT AFTER CONTACT OF SAID MATERIAL WITH SAID SOLUTION, AND THEN WASHING THE NEUTRALIZED PRODUCT IN AQUEOUS MEDIA AND RECOVERING THE NEUTRALIZED, FLAME-RESISTANT PRODUCT FROM SAID MEDIA.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-08 | 1957-08-10 | 1958-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-08 | 1961-08-10 | 1962-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-08 | 1965-08-10 | 1966-02-09 | $7700.00 | Window Closed / Lapsed |