US3054761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrudable composition comprising tetrafluoroethylene, methyl methacrylate, and a volatile organic lubricant
Assignee: Raybestos Manhattan Inc
•
Filing: 1960-06-22
•
Granted: 1962-09-18
•
Expires: 1980-06-22
Abstract
No abstract record available.
Inventors
- 👤 Robert L Moore
- 👤 William J Atwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:30
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/28; C08J2327/00; C08J2327/02; C08J2327/12; C08J2327/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A PRESSURE-COALESCING COMPOSITION IN THE FORM OF A PASTE FOR EXTRUSION THROUGH A DIE WHICH COMPRISES AN INTIMATE MIXTURE OF FROM ABOUT 28% TO ABOUT 76% BY WEIGHT OF UNSINTERED TETRAFLUOROETHYLENE POLYMER PARTICLES OF COLLOIDAL SIZE, AND FROM ABOUT 10% TO ABOUT 50% OF METHYL METHACRYLATE POLYMER PARTICLES HAVING A PARTICLE SIZE OF FROM ABOUT 50 TO ABOUT 300 MICRONS DISPERSED IN FROM ABOUT 14 TO ABOUT 22% OF A VOLATILE ORGANIC LUBRICANT IN WHICH SAID METHYL METHACRYLATE POLYMER IS INSOLUBLE AND WHICH IS ESSENTIALLY A HYDROCARBON LUBRICANT SELECTED FROM THE GROUP CONSISTING OF SATURATED ALIPHATIC AND SATURATED CYCLOALIPHATIC HYDROCARBON HAVING A VISCOSITY OF AT LEAST 0.45 CENTIPOISE AT 25* C, AND BOILING IN THE RANGE BETWEEN ABOUT 150* AND ABOUT 550* F.
Claim 2
Dependent Claim
123 words
A PRESSURE-COALESCING COMPOSITION IN THE FORM OF A PASTE FOR EXTRUSION THROUGH A DIE WHICH COMPRISES AN INTIMATE MIXTURE OF FROM ABOUT 28% TO ABOUT 76% BY WEIGHT OF UNSINTERED TETRAFLUOROETHYLENE POLYMER PARTICLES OF COLLOIDAL SIZE, AND FROM ABOUT 10% TO ABOUT 50% OF METHYL METHACRYLATE POLYMER PARTICLES HAVING A PARTICLE SIZE OF FROM ABOUT 50 TO ABOUT 300 MICRONS DISPERSED IN FROM ABOUT 14 TO ABOUT 22% OF A VOLATILE ORGANIC LUBRICANT IN WHICH SAID METHYL METHACRYLATE POLYMER IS INSOLUBLE AND WHICH IS ESSENTIALLY A HYDROCARBON LUBRICANT SELECTED FROM THE GROUP CONSISTING OF SATURATED ALIPHATIC AND SATURATED CYCLOALIPHATIC HYDROCARBON HAVING A VISCOSITY OF AT LEAST 0.45 CENTIPOISE AT 25* C, AND BOILING IN THE RANGE BETWEEN ABOUT 150* AND ABOUT 550* F.
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) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |