Patent US3806478A successfully refreshed from Google Patents.
US3806478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric dispersions stabilized by cellulosic precursors
Assignee: BASF Corp
•
Filing: 1972-04-19
•
Granted: 1974-04-23
•
Expires: 1992-04-19
Abstract
Abstract NOVEL SYNTHETIC POLYMERIC DISPERSIONS COMPRISING AN ORGANIC LIQUID MEDIUM, A DISPERSED POLYMER OF ETHYLENICALLY UNSATURATED MONOMERS AND A CELLULOSIC DISPERSION STABILIZER ARE PREPARED. IN THE DISPERSION THE CELLULOSIC PRECURSOR IS AT LEAST SWOLLEN BY THE ORGANIC LIQUID MEDIUM WHILE THE POLYMER IS SUBSTANTIALLY INSOLUBLE IN THIS MEDIUM. THESE DISPERSION ARE USEFUL ESPECIALLY IN THEIR PIGMENTED FORM IN PREPARING PROTECTIVE COATINGS FOR VARIOUS SUBSTRATA.
Inventors
- 👤 S Mansour
- 👤 J Rehfuss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:34
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/18; C08F2/20; C08F251/00; C08F251/02
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) | 1977-04-22 | 1977-10-22 | 1978-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-22 | 1981-10-22 | 1982-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-22 | 1985-10-22 | 1986-04-23 | $7700.00 | Window Closed / Lapsed |