US3065157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for modifying polymers and products thus obtained
Assignee: EIDP Inc
•
Filing: 1956-06-11
•
Granted: 1962-11-20
•
Expires: 1976-06-11
Abstract
No abstract record available.
Inventors
- 👤 Busse Warren Froemming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:53
CPC Classifications
C; C08; C08F; C08F291/00; C08F291/18; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR MODIFYING A PREVIOUSLY EXSISTING NORMALLY-SOLID SYNTHTIC POLYMER CONSISTING OF A POLYMER OF A VINYL HYDROCARBON COMPOUND, WHICH COMPRISES SUBJECTING SAID POLYMER, IN CONTACT WITH FROM 0.01% TO 10.0% BY WEIGHT OF A MONOMER OF THE CLASS CONSISTING OF TETRAFLUOROETHYLENE, HEXAFLUOROPROPENE, AND PERFLUOROCYCLOBUTENE, TO BOMBARDMENT WITH HIGH ENERGY PARTICLE RADIATION FOR A TIME SUFFICIENT TO ACHIEVE A DOSE OF FROM 0.4 TO 20 MEGA-ROENTGENS, WHEREBY CROSS-LINKS ARE CREATED IN SAID POLYMER AT A RATE FASTER THAN IN THE ABSENCE OF SAID ADDED MONOMER.
Claim 2
Dependent Claim
85 words
A PROCESS FOR MODIFYING A PREVIOUSLY EXSISTING NORMALLY-SOLID SYNTHTIC POLYMER CONSISTING OF A POLYMER OF A VINYL HYDROCARBON COMPOUND, WHICH COMPRISES SUBJECTING SAID POLYMER, IN CONTACT WITH FROM 0.01% TO 10.0% BY WEIGHT OF A MONOMER OF THE CLASS CONSISTING OF TETRAFLUOROETHYLENE, HEXAFLUOROPROPENE, AND PERFLUOROCYCLOBUTENE, TO BOMBARDMENT WITH HIGH ENERGY PARTICLE RADIATION FOR A TIME SUFFICIENT TO ACHIEVE A DOSE OF FROM 0.4 TO 20 MEGA-ROENTGENS, WHEREBY CROSS-LINKS ARE CREATED IN SAID POLYMER AT A RATE FASTER THAN IN THE ABSENCE OF SAID ADDED MONOMER.
References Cited (Backward Citations)
US2153553A
Cited
US2484530A
Cited
US2816883A
Cited
FR1079401A
Cited
FR64192E
Cited
FR1121084A
Cited
US2878174A
Cited
US2830943A
Cited
US2957814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |