US3699112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper coating pigment binder of alcoholized vinyl acetate-acrylamide copolymer
Assignee: Denka Co Ltd
•
Filing: 1969-03-11
•
Granted: 1972-10-17
•
Expires: 1989-03-11
Abstract
Abstract A PAPER COATING COMPOSITION HAVING AN IMPROVED FLUIDITY AND WATER RESISTANCE CAN BE OBTAINED BY USING AS A PIGMENT BINDER AN ALCOHOLYSIS PRODUCT OF VINYL ACETATEACRYLAMIDE COPOLYMER OR A COPOLYMER OF VINYL ACETATE, ACRYLMAIDE AND ONE OR MORE OTHER COPOLYMERIZABLE MONOOMER, OR THE PRODUCT ADDED WITH A WATER RESISTANCE AGENT WITHOUT LESSENING THE INHERENT CHARACTERISTIC OF PVA.
Inventors
- 👤 Kozo Konishi
- 👤 Masaaki Suzui
- 👤 Michio Otake
- 👤 Tatuo Maeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:57
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/60; D21H19/58
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |