US3561996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving adhesion of vinyl addition polymer aqueous-based composition sealants, etc.
Assignee: Rohm and Haas Co
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Filing: 1968-05-27
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Granted: 1971-02-09
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Expires: 1988-05-27
Abstract
Abstract IN ACCORDANCE WITH THE PRESENT INVENTION, IT HAS BEEN FOUND THAT COATING THE SURFACE OF A CAULK OR PAINTED LAYER COMPRISING A THERMOPLASTIC POLYMER, SUCH AS A VINYL ADDITION POLYMER, WITH CERTAIN TYPES OF SILANES, SURPRISINGLY INCREASES THE ADHESION OF THE CAULK TO MANY SUBSTRATES, AND ESPECIALLY TO THOSE OF SULICEOUS TYPE, SUCH AS GLASS, CERAMICS, PORCLEAIN, CONCRETE, ETC.
Inventors
- 👤 Harold C Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:39
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/24; B05D7/26
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |