US3206424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of polymerizing vinyl chloride in the presence of polyacrylic acid tridecyl ester to produce a shock resistant polymer
Assignee: Huels AG
•
Filing: 1962-03-30
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Granted: 1965-09-14
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Expires: 1982-03-30
Abstract
No abstract record available.
Inventors
- 👤 Heinrich Erwin
- 👤 Franke Walter
- 👤 Bueren Johannes
- 👤 Schneider Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:46
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
PROCESS FOR THE PRODUCTION OF SHOCK RESISTANT POLYVINYLCHLORIDE WHICH COMPRISES POLYMERIZING VINYLCHLORIDE IN AN AQUEOUS DISPERSION CONTAINING FROM 0.2 TO 7.5% BY WEIGHT OF A POLYACRYLIC ACID TRIDECYL ESTER AND A POLYMERIZATION CATALYST.
Claim 2
Dependent Claim
33 words
PROCESS FOR THE PRODUCTION OF SHOCK RESISTANT POLYVINYLCHLORIDE WHICH COMPRISES POLYMERIZING VINYLCHLORIDE IN AN AQUEOUS DISPERSION CONTAINING FROM 0.2 TO 7.5% BY WEIGHT OF A POLYACRYLIC ACID TRIDECYL ESTER AND A POLYMERIZATION CATALYST.
References Cited (Backward Citations)
US2686172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |