US3047425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing flame and soil resistant acrylic polymer fibers containing carpet fabric
Assignee: Monsanto Chemicals Ltd
•
Filing: 1959-07-16
•
Granted: 1962-07-31
•
Expires: 1979-07-16
Abstract
No abstract record available.
Inventors
- 👤 Julian J Hirshfeld
- 👤 Edward V Burnthall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:57
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; D06M15/43; D06M15/433; D06M11/00; D06M11/07; D06M11/11; D06M11/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A METHOD FOR IMPARTING FLAME AND SOILING RESISTANCE TO CARPET FABRIC AND THE LIKE CONTAINING A MAJOR PORTION OF ACRYLIC FIBERS WHICH ARE FORMED FROM POLYMERS CONTAINING AT LEAST 80 PERCENT BY WEIGHT OF ACRYLONITRILE IN POLYMERIC FORM COMPRISING IMPREGNATING SAID FABRIC WITH ABOUT 35 PERCENT BY WEIGHT OF A SOLUTE COMPRISING THE FOLLOWING INGREDIENTS IN THE SPECIFIED PROPORTIONS BY WEIGHT: (1) FROM ABOUT 30 TO 50 PARTS OF AMMONIUM BROMIDE, (2) FROM ABOUT 7 TO ABOUT 20 PARTS OF UREA, (3) FROM ABOUT 10 TO ABOUT 40 PARTS OF FORMALDEHYDE, (4) FROM ABOUT 1 TO ABOUT 7 PARTS OF GUANYL UREA PHOSPHATE, AND (5) FROM ABOUT 1 TO ABOUT 15 PARTS OF HYDROXYLALKYL GLYOXADIENE WHERE (1), (2), (3), (4) AND (5) ARE SUPPLIED IN AN AMOUNT OF FROM ABOUT 4 PERCENT TO ABOUT 15 PERCENT BASED ON THE WEIGHT OF SAID FABRIC; AND THEREAFTER DRYING THE IMPREGNATED FABRIC FOLLOWED BY HEATING THE DRIED FABRIC TO A TEMPERATURE WITHIN THE RANGE OF ABOUT 260* F. TO ABOUT 300* F. UNTIL A WATER-INSOLUBLE FINISH IS FORMED THEREON.
Claim 2
Independent Claim
176 words
A METHOD FOR IMPARTING FLAME AND SOILING RESISTANCE TO CARPET FABRIC AND THE LIKE CONTAINING A MAJOR PORTION OF ACRYLIC FIBERS WHICH ARE FORMED FROM POLYMERS CONTAINING AT LEAST 80 PERCENT BY WEIGHT OF ACRYLONITRILE IN POLYMERIC FORM COMPRISING IMPREGNATING SAID FABRIC WITH ABOUT 35 PERCENT BY WEIGHT OF A SOLUTE COMPRISING THE FOLLOWING INGREDIENTS IN THE SPECIFIED PROPORTIONS BY WEIGHT: (1) FROM ABOUT 30 TO 50 PARTS OF AMMONIUM BROMIDE, (2) FROM ABOUT 7 TO ABOUT 20 PARTS OF UREA, (3) FROM ABOUT 10 TO ABOUT 40 PARTS OF FORMALDEHYDE, (4) FROM ABOUT 1 TO ABOUT 7 PARTS OF GUANYL UREA PHOSPHATE, AND (5) FROM ABOUT 1 TO ABOUT 15 PARTS OF HYDROXYLALKYL GLYOXADIENE WHERE (1), (2), (3), (4) AND (5) ARE SUPPLIED IN AN AMOUNT OF FROM ABOUT 4 PERCENT TO ABOUT 15 PERCENT BASED ON THE WEIGHT OF SAID FABRIC; AND THEREAFTER DRYING THE IMPREGNATED FABRIC FOLLOWED BY HEATING THE DRIED FABRIC TO A TEMPERATURE WITHIN THE RANGE OF ABOUT 260* F. TO ABOUT 300* F. UNTIL A WATER-INSOLUBLE FINISH IS FORMED THEREON.
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) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |