US3244774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanizates from polymerized olefins chlorinated in aqueous suspension above the agglomeration temperature
Assignee: Hoechst AG
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Filing: 1961-09-05
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Granted: 1966-04-05
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Expires: 1981-09-05
Abstract
No abstract record available.
Inventors
- 👤 Kaupp Josef
- 👤 Klug Helmut
- 👤 Kolm Hans-Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:23
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025; C08F; C08F8/00; C08F8/18; C08F8/20; C08K3/00; C08K3/01; C08K3/011
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A PROCESS FOR PREPARING CHLORINE-CONTAINING SYNTHETIC RUBBERS COMPRISING VULCANIZING A HETEROGENEOUSLY CHLORINATED POLYMER OF MONO OLEFIN, SAID POLYMER HAVING A MOLECULAR WEIGHT WITHIN A RANGE OF 10,000 TO 500,000 AND SAID CHLORINATION HAVING BEEN CONDUCTED IN AN AQUEOUS SUSPENSION AND AT A TEMPERATURE ABOVE THE AGGLOMERATION TEMPERATURE OF SAID POLYMER.
Claim 2
Dependent Claim
50 words
A PROCESS FOR PREPARING CHLORINE-CONTAINING SYNTHETIC RUBBERS COMPRISING VULCANIZING A HETEROGENEOUSLY CHLORINATED POLYMER OF MONO OLEFIN, SAID POLYMER HAVING A MOLECULAR WEIGHT WITHIN A RANGE OF 10,000 TO 500,000 AND SAID CHLORINATION HAVING BEEN CONDUCTED IN AN AQUEOUS SUSPENSION AND AT A TEMPERATURE ABOVE THE AGGLOMERATION TEMPERATURE OF SAID POLYMER.
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |