US3660359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoset resins with hydroxy acrylate methacrylonitrile and blocked isocyanate
Assignee: Ford Motor Co
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Filing: 1970-06-05
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Granted: 1972-05-02
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Expires: 1990-06-05
Abstract
Abstract NOVEL THERMOSETTING RESIN POWDERS WHICH CAN BE MOLDED TO FORM PRODUCTS CHARACTERIZED IN TENSILE MEASUREMENT, BY HIGH ELONGATION-TO-BREAK, HIGH TENSILE STRENGTH AND MODULUS AND A HIGH GLASS TRANSITION TEMPERATURE ARE PREPARED FROM A MIXTURE OF (A) A PREPOLYMER FORMED BY REACTING (1) A HYDROXY ESTER OF ACRYLIC OR METHACRYLIC ACID AND A C2-C3 DIOL WITH (2) METHACRYLONITRILE OR ACRYLONITRILE OR A MIXTURE OF THE SAME, AND (B) BLOCKED DI- OR TRIISOCYANATE WHEREIN THE ISOCYANATE GROUPS ARE DIRECTLY ATTACHED TO AN AROMATIC RING AND DEBLOCK AT TEMPERATURES IN THE RANGE OF 120* TO 160*C.
Inventors
- 👤 Santokh S Labana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:16
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6216; C08G18/622; C08G18/6225; C08G18/6229; C08G18/6262; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; C08G18/807; C08G18/8074; C08G2140/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |