US3324064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous dispersions of vinylidene chloride-acrylate-vinylsulfonic acid copolymers
Assignee: BASF SE
•
Filing: 1965-06-16
•
Granted: 1967-06-06
•
Expires: 1985-06-16
Abstract
No abstract record available.
Inventors
- 👤 Fikentscher Hans
- 👤 Herrle Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:41
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/08; C08F20/00; C08F20/62; C08F28/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
103 words
A STABLE AQUEOUS POLYMERIC DISPERSION WHICH COMPRISES: 60 TO 92 PARTS BY WEIGHT OF POLYMERIZED VINYLIDENE CHLORIDE, 8 TO 40 PARTS BY WEIGHT OF A POLYMERIZED ESTER OF AN ALKANOL CONTAINING FROM 1 TO 8 CARBON ATOMS AND AN ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC AND METHACRYLIC ACID AND 0.1% TO 2% BY WEIGHT BASED ON THE COMBINED WEIGHT OF SAID POLYMERIZED VINYLIDENE CHLORIDE AND SAID POLYMERIZED ESTER OF A POLYMERIZED COMPOUND SELECTED FROM THE GROUP CONSISTING OF FREE VINYLSULFONIC ACID AND A WATER-SOLUBLE SALT OF A VINYLSULFONIC ACID, SAID POLYMERIC DISPERSION HAVING A PH VALUE OF BETWEEN 4 AND 6.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |