US2957814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for modifying polymers and products thus obtained
Assignee: EIDP Inc
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Filing: 1956-07-12
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Granted: 1960-10-25
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Expires: 1976-07-12
Abstract
No abstract record available.
Inventors
- 👤 Busse Warren Froemming
- 👤 Hines Roger Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:20
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/16; C08J7/18; B; B01; B01J; B01J19/00; B01J19/08; B01J19/081; B01J19/085; C08F; C08F255/00; C08F255/02; C08J2323/00; C08J2323/02; C08J2323/04; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A PROCESS FOR MODIFYING A PREVIOUSLY-EXISTING, NORMALLY SOLID POLYMER OF ETHYLENE WHICH COMPRISES SUBJECTING SAID POLYMER IN CONTACT WITH FROM 0.02% TO 10% BY WEIGHT OF A MONOMERIC CYANOALKENE HAVING OLEFINIC UNSATURATION IN THE ALPHA, BETA-POSITION, TO BOMBARDMENT WITH A RADIATION DOSE OF FROM ABOUT 0.4 TO ABOUT 12 MEGA-ROENTGENS OF HIGH ENERGY IONIZING RADIATION, WHERE BY CROSS-LINKS ARE CREATED IN SAID POLYMER AT A RATE FASTER THAN IN THE ABSENCE OF SAID ADDED MONOMER.
Claim 2
Dependent Claim
75 words
A PROCESS FOR MODIFYING A PREVIOUSLY-EXISTING, NORMALLY SOLID POLYMER OF ETHYLENE WHICH COMPRISES SUBJECTING SAID POLYMER IN CONTACT WITH FROM 0.02% TO 10% BY WEIGHT OF A MONOMERIC CYANOALKENE HAVING OLEFINIC UNSATURATION IN THE ALPHA, BETA-POSITION, TO BOMBARDMENT WITH A RADIATION DOSE OF FROM ABOUT 0.4 TO ABOUT 12 MEGA-ROENTGENS OF HIGH ENERGY IONIZING RADIATION, WHERE BY CROSS-LINKS ARE CREATED IN SAID POLYMER AT A RATE FASTER THAN IN THE ABSENCE OF SAID ADDED MONOMER.
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) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |