US3714103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspension polymerization of vinylidene halide in presence of polyvinylidene halide stabilizer
Assignee: Dow Produktions und Vertriebs GmbH and Co OHG
•
Filing: 1970-09-08
•
Granted: 1973-01-30
•
Expires: 1990-09-08
Abstract
Abstract A PROCESS FOR THE CONTINUOUS PRODUCTION OF SOLID POLYVINYLIDENE HALIDE RESINS WHICH COMPRISES THE COPOLYMERISATION OF A MIXTURE OF STARTING MATERIALS SUCH AS VINYLIDENE HALIDES ACRYLONITRILE ACRYLIC ACID, METHACRYLIC ACID ITACONIC ACID AND CATALYST AND EMULSIFIERS TOGETHER WITH A POLYMERISED COMPONENT OF A SOLID POLYVINYLIDENE HALIDE RESIN OBTAINED BY EMULSION POLYMERISATION BY MEANS OF FREEZING COAGULATION.
Inventors
- 👤 H Huhn
- 👤 H Kuhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:06
CPC Classifications
C; C08; C08F; C08F259/00; C08F259/02; C08F259/06
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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |