US3042545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resins as adhesives for bonding polyurethane to metal
Assignee: Uniroyal Inc
•
Filing: 1959-08-12
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Granted: 1962-07-03
•
Expires: 1979-08-12
Abstract
No abstract record available.
Inventors
- 👤 Robert N Kienle
- 👤 Daniel T Szura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:09
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/36; B05D7/00; B05D7/50; B05D7/52; B05D7/54; B05D7/542; B32; B32B; B32B15/00; B32B15/04; B32B15/08; C; C09; C09D; C09D175/00; C09D175/04; C09J; C09J163/00; B05D2202/00; B05D2503/00; B05D2504/00; C08; C08L; C08L2666/00; C08L2666/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS OF BONDING URETHANE POLYMERS TO METAL SURFACES WITH A DEGREE OF ADHESION OF AT LEAST 80 POUNDS PER INCH AT A STATIC 90* PULL COMPRISING THE STEPS OF COATING A METAL SURFACE WITH A LAYER OF FLUID, INCOMPLETELY CURED 1,2-EPOXIDE RESIN CONTAINING FROM ABOUT 6 TO ABOUT 10 PARTS BY WEIGHT OF AN AMINE CURATIVE PER HUNDRED PARTS OF RESIN, SAID LAYER HAVING A FILM THICKNESS OF AT LEAST 0.02O GRAM PER SQUARE INCH OF METAL SURFACE, APPLYING A LAMINA OF FLUID, INCOMPLETELY CURED POLYURETHANE PREPOLYMER CONTAINING AN AMINE CURATIVE UPON SAID LAYER OF 1,2-EPOXIDE RESIN AND SUBSEQUENTLY FULLY CO-CURING SAID 1,2-EPOXIDE TESIN AND SAID POLYURETHANE PREPOLYMER.
Claim 2
Dependent Claim
109 words
A PROCESS OF BONDING URETHANE POLYMERS TO METAL SURFACES WITH A DEGREE OF ADHESION OF AT LEAST 80 POUNDS PER INCH AT A STATIC 90* PULL COMPRISING THE STEPS OF COATING A METAL SURFACE WITH A LAYER OF FLUID, INCOMPLETELY CURED 1,2-EPOXIDE RESIN CONTAINING FROM ABOUT 6 TO ABOUT 10 PARTS BY WEIGHT OF AN AMINE CURATIVE PER HUNDRED PARTS OF RESIN, SAID LAYER HAVING A FILM THICKNESS OF AT LEAST 0.02O GRAM PER SQUARE INCH OF METAL SURFACE, APPLYING A LAMINA OF FLUID, INCOMPLETELY CURED POLYURETHANE PREPOLYMER CONTAINING AN AMINE CURATIVE UPON SAID LAYER OF 1,2-EPOXIDE RESIN AND SUBSEQUENTLY FULLY CO-CURING SAID 1,2-EPOXIDE TESIN AND SAID POLYURETHANE PREPOLYMER.
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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) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |