US3047520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective urethane coating composition
Assignee: Honeywell International Inc
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Filing: 1958-10-28
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Granted: 1962-07-31
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Expires: 1978-10-28
Abstract
No abstract record available.
Inventors
- 👤 Robert J Fiel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:11
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/36; C08G18/32; C08G18/3203; C08G18/3206; C09; C09D; C09D175/00; C09D175/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A PROTECTIVE COATING COMPOSITION COMPRISING AN ANHYDROUS MIXTURE CONSTITUTING 80% TO 20% BY WEIGHT OF AN ORGANIC SOLVENT HAVING A BOILING POINT WITHIN THE RANGE OF 30* C, TO 175* C, FREE OF ACTIVE HYDROGEN AS DETERMINED BY THE ZEREWITNOFF METHOD, AND 20% TO 80% BY WEIGHT OF A FILM-FORMING URETHANE SOLUTE PREPARED BY REACTION OF AN ALIPHATIC HYDROCARBON TRIOL SELECTED FROM THE GROUP CONSISTING OF GLYCERINE, HEXANETRIOL-1,2,6, TRIMETHYLOL PROPANE AND TRIMETHYLOL ETHANE, CASTOR OIL, AND AN ORGANIC DIISOCYANATE IN THE PROPORTION IN WHICH THE HYDROCARBON TRIOL OH/CASTOR OIL OH RATIO IS BETWEEN 0.05 AND 2.50 AND THE ISOCYANATE NCO/TOTAL OH RATIO IS BETWEEN 1.5 AND 3.5.
Claim 2
Dependent Claim
107 words
A PROTECTIVE COATING COMPOSITION COMPRISING AN ANHYDROUS MIXTURE CONSTITUTING 80% TO 20% BY WEIGHT OF AN ORGANIC SOLVENT HAVING A BOILING POINT WITHIN THE RANGE OF 30* C, TO 175* C, FREE OF ACTIVE HYDROGEN AS DETERMINED BY THE ZEREWITNOFF METHOD, AND 20% TO 80% BY WEIGHT OF A FILM-FORMING URETHANE SOLUTE PREPARED BY REACTION OF AN ALIPHATIC HYDROCARBON TRIOL SELECTED FROM THE GROUP CONSISTING OF GLYCERINE, HEXANETRIOL-1,2,6, TRIMETHYLOL PROPANE AND TRIMETHYLOL ETHANE, CASTOR OIL, AND AN ORGANIC DIISOCYANATE IN THE PROPORTION IN WHICH THE HYDROCARBON TRIOL OH/CASTOR OIL OH RATIO IS BETWEEN 0.05 AND 2.50 AND THE ISOCYANATE NCO/TOTAL OH RATIO IS BETWEEN 1.5 AND 3.5.
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) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |