US3025129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for increasing the crystallinity and safe ironing temperature of cellulose triacetate textiles with acetone mixtures
Assignee: Acordis UK Ltd
•
Filing: 1957-04-23
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Granted: 1962-03-13
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Expires: 1977-04-23
Abstract
No abstract record available.
Inventors
- 👤 Finlayson Donald
- 👤 Goddard Arthur Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:01
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/08; D06M13/02; D06M13/03; D06M13/07; D06M13/10; D06M13/12; D06M13/127; D06M13/144
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A PROCESS FOR THE MANUFACTURE OF TEXTILE MATERIALS CONTAINING CELLULOSE TRIACETATE FIBRES WHICH COMPRISES BRINING A TEXTILE MATERIAL COMPRISING AS THE SOLE THERMOPLASTIC CONSTITUENT FIBRES OF CELLULOSE TRIACETATE WHICH IS IN THAT CRYSTALLINE STATE IN WHICH FIBRES THEREOF HAVE A STICKING TEMPERATURE ABOUT 200* C. INTO CONTACT WITH A MIXTURE AT A TEMPERATURE OF 15* TO 45 C. CONSISTING OF FROM 30 TO 70 PERCENT BY WEIGHT OF ACETONE AND FROM 70 TO 30 PERCENT BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF WATER AND MONOHYDRTIC ALKANOLS CONTAINING UP TO 4 CARBON ATOMS IN THE MOLECULE AND MAINTAINING THE TECTILE MATERIAL IN CONTACT WITH THE SAID MIXTURE IN THE TEMPERATURE RANGE OF 1K TO 40* C. UNTIL THE SAFE IRONING TEMPERATURE OF THE SAID CELLULOSE TRIACETATE FIBRES IS RAISED TO BETWEEN 195* C. AND 230* C.
Claim 2
Dependent Claim
139 words
A PROCESS FOR THE MANUFACTURE OF TEXTILE MATERIALS CONTAINING CELLULOSE TRIACETATE FIBRES WHICH COMPRISES BRINING A TEXTILE MATERIAL COMPRISING AS THE SOLE THERMOPLASTIC CONSTITUENT FIBRES OF CELLULOSE TRIACETATE WHICH IS IN THAT CRYSTALLINE STATE IN WHICH FIBRES THEREOF HAVE A STICKING TEMPERATURE ABOUT 200* C. INTO CONTACT WITH A MIXTURE AT A TEMPERATURE OF 15* TO 45 C. CONSISTING OF FROM 30 TO 70 PERCENT BY WEIGHT OF ACETONE AND FROM 70 TO 30 PERCENT BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF WATER AND MONOHYDRTIC ALKANOLS CONTAINING UP TO 4 CARBON ATOMS IN THE MOLECULE AND MAINTAINING THE TECTILE MATERIAL IN CONTACT WITH THE SAID MIXTURE IN THE TEMPERATURE RANGE OF 1K TO 40* C. UNTIL THE SAFE IRONING TEMPERATURE OF THE SAID CELLULOSE TRIACETATE FIBRES IS RAISED TO BETWEEN 195* C. AND 230* 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) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |