US3236584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft polymerization on a paper base by ionizing radiation
Assignee: Individual
•
Filing: 1962-11-08
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Granted: 1966-02-22
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Expires: 1982-11-08
Abstract
No abstract record available.
Inventors
- 👤 Edward F Degering
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:32
CPC Classifications
C; C08; C08F; C08F251/00; C08F251/02; D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/18; D21H17/19; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
METHOD OF GRAFTING A POLYMERIC COATING ON THE CELLULOSE MOLECULES OF PAPER, COMPRISING COATING A SURFACE OF SAID PAPER WITH A MONOMER HAVING A POLYMERIZABLE VINYL GROUP, EXPOSING SAID COATED SURFACE TO HIGH ENERGY IONIZING RADIATION EQUIVALENT TO AT LEAST ABOUT 100,000 ELECTRON VOLTS AT A DOSAGE OF NOT MORE THAN ABOUT 100,000 RADS PER PASS, SAID DOSAGE BEING LESS THAN DOSAGE NEEDED FOR COMPLETELY POLYMERIZING SAID MONOMER, AND REPEATING SAID EXPOSURE UNTIL SAID MONOMER HAS POLYMERIZED AND IS GRAFTED ON SAID PAPER, THE INTERVALS BETWEEN SUCCESSIVE EXPOSURES BEING AT LEAST ABOUT 15 MINUTES EACH, SAID PAPER BEING AT AN ELEVATED TEMPERATURE OF ABOUT 40*-85*C. DURING SAID INTERVALS.
Claim 2
Dependent Claim
108 words
METHOD OF GRAFTING A POLYMERIC COATING ON THE CELLULOSE MOLECULES OF PAPER, COMPRISING COATING A SURFACE OF SAID PAPER WITH A MONOMER HAVING A POLYMERIZABLE VINYL GROUP, EXPOSING SAID COATED SURFACE TO HIGH ENERGY IONIZING RADIATION EQUIVALENT TO AT LEAST ABOUT 100,000 ELECTRON VOLTS AT A DOSAGE OF NOT MORE THAN ABOUT 100,000 RADS PER PASS, SAID DOSAGE BEING LESS THAN DOSAGE NEEDED FOR COMPLETELY POLYMERIZING SAID MONOMER, AND REPEATING SAID EXPOSURE UNTIL SAID MONOMER HAS POLYMERIZED AND IS GRAFTED ON SAID PAPER, THE INTERVALS BETWEEN SUCCESSIVE EXPOSURES BEING AT LEAST ABOUT 15 MINUTES EACH, SAID PAPER BEING AT AN ELEVATED TEMPERATURE OF ABOUT 40*-85*C. DURING SAID INTERVALS.
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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |