US2940869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of adhering an organic compound to a shaped organic polymer
Assignee: EIDP Inc
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Filing: 1956-07-12
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Granted: 1960-06-14
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Expires: 1976-07-12
Abstract
No abstract record available.
Inventors
- 👤 Graham Boynton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:04
CPC Classifications
D; D06; D06M; D06M14/00; D06M14/18; D06M14/26; D06M14/28; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN A PROCESS FOR APPLYING A COATING TO THE SURFACE OF A SHAPED ORGANIC POLYMER, THE IMPROVEMENT FOR ADHERING AN ORGANIC COMPOUND WHICH IS CHEMICALLY DISTINCT FROM THE POLYMER, NON-POLYMERIZABLE AND FLUID AT A TEMPERATURE BELOW THE SOFTENING TEMPERATURE OF THE SHAPED POLYMER, COMPRISING THE SEPARATE STEPS OF EXPOSING THE SURFACE OF THE SHAPED ORGANIC POLYMER BEFORE THE COATING IS APPLIED TO AT LEAST 1 WATT-SECOND PER SQUARE CENTIMETER OF SURFACE OF AN IONIZING RADIATION WITH AN ENERGY OF AT LEAST 0.1 MILLION ELECTRON VOLTS TO ACTIVATE THE SURFACE TO BE COATED AND THEREBY ACTIVATING THE SAME, AND THEN, IN THE ABSENCE OF IONIZING RADIATION WHILE SAID SURFACE IS STILL ACTIVATED, APPLYING SAID COMPOUND IN FLUID FORM TO SAID SURFACE TO FORM A COATING WHICH REMAINS UNITED TO THE POLYMER EVEN WHEN TREATED WITH SOLVENTS WHICH NORMALLY DISSOLVE SAID COMPOUND.
Claim 2
Dependent Claim
140 words
IN A PROCESS FOR APPLYING A COATING TO THE SURFACE OF A SHAPED ORGANIC POLYMER, THE IMPROVEMENT FOR ADHERING AN ORGANIC COMPOUND WHICH IS CHEMICALLY DISTINCT FROM THE POLYMER, NON-POLYMERIZABLE AND FLUID AT A TEMPERATURE BELOW THE SOFTENING TEMPERATURE OF THE SHAPED POLYMER, COMPRISING THE SEPARATE STEPS OF EXPOSING THE SURFACE OF THE SHAPED ORGANIC POLYMER BEFORE THE COATING IS APPLIED TO AT LEAST 1 WATT-SECOND PER SQUARE CENTIMETER OF SURFACE OF AN IONIZING RADIATION WITH AN ENERGY OF AT LEAST 0.1 MILLION ELECTRON VOLTS TO ACTIVATE THE SURFACE TO BE COATED AND THEREBY ACTIVATING THE SAME, AND THEN, IN THE ABSENCE OF IONIZING RADIATION WHILE SAID SURFACE IS STILL ACTIVATED, APPLYING SAID COMPOUND IN FLUID FORM TO SAID SURFACE TO FORM A COATING WHICH REMAINS UNITED TO THE POLYMER EVEN WHEN TREATED WITH SOLVENTS WHICH NORMALLY DISSOLVE SAID COMPOUND.
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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |