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US3634306A
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US
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Moisture-curing polyurethanes soluble in mineral spirits
Assignee: NL SPENCER KELLOG Inc
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Filing: 1967-09-01
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Granted: 1972-01-11
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Expires: 1987-09-01
Abstract
Abstract SOLVENT SOLUTIONS OF MOISTURE-CURING POLYURETHANES MADE FROM A POLYOL COMPONENT CONTAINING BRANCHED CHAIN POLYOXYBUTYLENE POLYOL IN ORDER THAT A PARAFFINIC OR ALICYCLIC HYDROCARBON-CONTAINING SOLVENT CAN BE EMPLOYED AND STILL OBTAINED ESSENTIALLY CLEAR SOLUTIONS. SUCH SOLVENTS ARE ESPECIALLY ADVANTAGEOUS IN VIEW OF POLLUTION PROBLEMS ENCOUNTERED WITH AROMATIC, OLEFINIC AND OXYGENATED SOLVENTS. A HIGHLY PREFERRED DISOCYANATE IS 1-ISOCYANATO-3ISOCYANATOMETHYL-3,5,5-TRIMETHYLCYCLOHEXANE WHOSE USE PERMITS THE PRODUCTION OF SOLUTIONS HAVING AT LEAST ABOUT 70 OR 80% OF THE PARAFFINIC OR ALICYCLIC HYDROCARBON SOLVENT COMPONENTS.
Inventors
- 👤 Herbert M Schroeder
- 👤 David W Teloh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:54
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/12; C08G18/0838; C08G18/0842; C08G18/0847; C08G18/0852; C08G18/28; C08G18/40; C08G18/48; C08G18/4854; C08G18/65; C08G18/66; C08G18/6666; C08G18/667; C08G18/6674; C08G18/6677; C09; C09D; C09D175/00; C09D175/04; C09D175/08
Claims Analysis
Total Claims: 0
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |