US2862785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulose triacetate fabrics of improved safe ironing temperature and process of heat treatment to obtain said fabrics
Assignee: Acordis UK Ltd
•
Filing: 1953-12-28
•
Granted: 1958-12-02
•
Expires: 1973-12-28
Abstract
No abstract record available.
Inventors
- 👤 Finlayson Donald
- 👤 Krzesinski Boleslaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:31
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/01; D06M11/05; D01; D01F; D01F2/00; D01F2/24; D01F2/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
58 words
TEXTILE FABRICS COMPRISING THERMOPLASTIC FIBERS, SAID FABRICS BEING CAPABLE OF BEING IRONED SAFELY AT A TEMPERATURE BETWEEN 220* AND 240*C., ALL THE SAID THERMOPLASTIC FIBERS CONSISTING OF A CELLULOSE TIACETATE OF ACETYL VALUE ABOVE 59% RECKONED AS ACETIC ACID, SAID CELLULOSE TRIACETATE BEING IN THAT CRYSTALLINE STATE IN WHICH FIBERS THEREOF HAVE A STICKING TEMPERATURE OF ABOUT 220*-240*C.
Claim 2
Dependent Claim
58 words
TEXTILE FABRICS COMPRISING THERMOPLASTIC FIBERS, SAID FABRICS BEING CAPABLE OF BEING IRONED SAFELY AT A TEMPERATURE BETWEEN 220* AND 240*C., ALL THE SAID THERMOPLASTIC FIBERS CONSISTING OF A CELLULOSE TIACETATE OF ACETYL VALUE ABOVE 59% RECKONED AS ACETIC ACID, SAID CELLULOSE TRIACETATE BEING IN THAT CRYSTALLINE STATE IN WHICH FIBERS THEREOF HAVE A STICKING TEMPERATURE OF ABOUT 220*-240*C.
Claim 3
Dependent Claim
127 words
PROCESS FOR THE MANUFACTURE OF TEXTILE FABRICS COMPRISING THERMOPLASTIC FIBERS YET CAPABLE OF BEING IRONED SAFETLY AT TEMPERATURE BETWEEN 220* AND 240*C., WHICH COMPRISES HEATING A FABRIC COMPRISING THERMOPLASTIC FIBERS ALL OF WHICH CONSIST OF A CELLULOSE TRIACETATE OF ACETYL VALUE ABOVE 59% RECKONED AS ACETIC ACID, THE SAID CELLULOSE TRIACETATE BEING IN THAT CRYSTALLINE STAGE IN WHICH FIBERS THEREOF HAVE A STICKING TEMPERATURE OF ABOUT 200* C., TO A TEMPERATURE BETWEEN 120* AND 285*C. AT LEAST UNTIL THE CELLULOSE TRIACETATE HAS BEEN CONVERTED INTO THAT CRYSTALLINE STATE IN WHICH FIBERS THEREOF HAVE A STICKING TEMPERATURE OF ABOUT 220*-240*C., THE TENSION ON THE FABRIC DURING THE SAID HEATING BEING AT MOST AT A VALUE AT WHICH THE DIMENSIONS OF THE FABRIC ARE SUBSTANTIALLY CONSTANT DURING SAID HEATING.
Claim 4
Dependent Claim
127 words
PROCESS FOR THE MANUFACTURE OF TEXTILE FABRICS COMPRISING THERMOPLASTIC FIBERS YET CAPABLE OF BEING IRONED SAFETLY AT TEMPERATURE BETWEEN 220* AND 240*C., WHICH COMPRISES HEATING A FABRIC COMPRISING THERMOPLASTIC FIBERS ALL OF WHICH CONSIST OF A CELLULOSE TRIACETATE OF ACETYL VALUE ABOVE 59% RECKONED AS ACETIC ACID, THE SAID CELLULOSE TRIACETATE BEING IN THAT CRYSTALLINE STAGE IN WHICH FIBERS THEREOF HAVE A STICKING TEMPERATURE OF ABOUT 200* C., TO A TEMPERATURE BETWEEN 120* AND 285*C. AT LEAST UNTIL THE CELLULOSE TRIACETATE HAS BEEN CONVERTED INTO THAT CRYSTALLINE STATE IN WHICH FIBERS THEREOF HAVE A STICKING TEMPERATURE OF ABOUT 220*-240*C., THE TENSION ON THE FABRIC DURING THE SAID HEATING BEING AT MOST AT A VALUE AT WHICH THE DIMENSIONS OF THE FABRIC ARE SUBSTANTIALLY CONSTANT DURING SAID HEATING.
References Cited (Backward Citations)
US2563394A
Cited
US1959350A
Cited
US2092477A
Cited
US1986945A
Cited
US2198660A
Cited
US2217113A
Cited
US2313173A
Cited
GB570588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |