US3152920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antistatic, soil-resistant coatings
Assignee: Eastman Kodak Co
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Filing: 1962-09-20
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Granted: 1964-10-13
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Expires: 1982-09-20
Abstract
No abstract record available.
Inventors
- 👤 John R Caldwell
- 👤 Gilkey Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:03
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/564; D06M15/21; D06M15/263; D06M15/267; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/17; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T442/00; Y10T442/20; Y10T442/2279; Y10T442/2418; Y10T442/2451; Y10T442/2467
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
141 words
THE PROCESS OF IMPARTING ANTISTATIC, SOIL-RESISTANT PROPERTIES TO AN ARTICLE COMPRISING A STRUCTURE COMPOSED OF A HYDROPHOBIC RESIN WHICH COMPRISES FORMING A MIXTURE, WITH COMPATIBLE SOLVENT, OF (A) A POLYMER HAVING A MOLECULAR WEIGHT OF 500-750000 AND CONTAINING AN ACIDIC GROUP SELECTED FROM THE CLASS CONSISTING OF CARBOXYL, SULFONIC AND PHOSPHORIC, AT LEAST 10% OF THE ACIDIC GROUPS BEING CARBOXYL, AND HAVING A RATIO OF CARBON ATOMS TO ACIDIC GROUPS IN THE REPEATING UNIT OF POLYMER OF 2:1 TO 20:1, AND (B) 10-400%, BASED ON THE WEIGHT OF THE POLYMER, OF THE REACTION PRODUCT OF ORGANIC POLYISOCYANATE AND POLYOL, THE REACTIVITY OF THE ISOCYANATE GROUPS OF SAID REACTION PRODUCT BEING INHIBITED TO FORM A HEAT-REVERSIBLE INTERMEDIATE; COATING SAID MIXTURE ONTO SAID ARTICLE, REMOVING THE SOLVENT AND HEATING THE COATING TO REACT THE POLYMER WITH THE REACTION PRODUCT OF POLYOL AND POLYISOCYANATE.
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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |