Patent US2611861A successfully refreshed from Google Patents.
US2970066A
Expired / Lapsed
US
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Process of treating polymeric structures and product thereof
Assignee: EIDP Inc
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Filing: 1959-08-31
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Granted: 1961-01-31
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Expires: 1979-08-31
Abstract
No abstract record available.
Inventors
- 👤 Brasure Donald Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:52
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; B; B05; B05D; B05D7/00; B05D7/02; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/32; C08G18/3203; C08G18/3215; Y; Y10; Y10S; Y10S8/00; Y10S8/02; Y10S8/04; Y10S8/09; Y10S8/10; Y10S8/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS WHICH COMPRISES COATING THE SURFACE OF AN ORGANIC POLYMERIC STRUCTURE HAVING AN ACTIVE-HYDROGEN-CONTAINING SURFACE WITH A COMPOSITION CONTAINING AT LEAST ONE ORGANIC COMPOUND HAVING A PLURALITY OF ISOCYANATE GROUPS AND AT LEAST ONE BENZOYL COMPOUND, SAID BENZOYL COMPOUND HAVING SUBSTITUTED THEREIN AT LEAST ONE ORTHO-HYDROXYL GROUP AND AT LEAST ONE ADDITIONAL ACTIVEHYDROGEN-CONTAINING GROUP BESIDES SAID HYDROXYL GROUP, THE RATIO OF THE NUMBER OF GRAM EQUIVALENTS OF ISOCYANATE GROUPS IN SAID ORGANIC COMPOUND TO THE NUMBER OF GRAM EQUIVALENTS OF ACTIVE-HYDROGEN ATOMS IN SAID ADDITIONAL ACTIVE-HYDROGEN-CONTAINING GROUPS OF SAID BENZOYL COMPOUND BEING AT LEAST 1:20, AND CAUSING SAID STRUCTURE, SAID ISOCYANATE COMPOUND AND SAID BENZOYL COMPOUND TO INTERREACT.
Claim 2
Dependent Claim
109 words
A PROCESS WHICH COMPRISES COATING THE SURFACE OF AN ORGANIC POLYMERIC STRUCTURE HAVING AN ACTIVE-HYDROGEN-CONTAINING SURFACE WITH A COMPOSITION CONTAINING AT LEAST ONE ORGANIC COMPOUND HAVING A PLURALITY OF ISOCYANATE GROUPS AND AT LEAST ONE BENZOYL COMPOUND, SAID BENZOYL COMPOUND HAVING SUBSTITUTED THEREIN AT LEAST ONE ORTHO-HYDROXYL GROUP AND AT LEAST ONE ADDITIONAL ACTIVEHYDROGEN-CONTAINING GROUP BESIDES SAID HYDROXYL GROUP, THE RATIO OF THE NUMBER OF GRAM EQUIVALENTS OF ISOCYANATE GROUPS IN SAID ORGANIC COMPOUND TO THE NUMBER OF GRAM EQUIVALENTS OF ACTIVE-HYDROGEN ATOMS IN SAID ADDITIONAL ACTIVE-HYDROGEN-CONTAINING GROUPS OF SAID BENZOYL COMPOUND BEING AT LEAST 1:20, AND CAUSING SAID STRUCTURE, SAID ISOCYANATE COMPOUND AND SAID BENZOYL COMPOUND TO INTERREACT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |