Patent US1897453A successfully refreshed from Google Patents.
Patent US3595847A successfully refreshed from Google Patents.
US3595847A
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US
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Process for the production of sulphur-modified polychloroprenes
Assignee: Bayer AG
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Filing: 1968-12-30
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Granted: 1971-07-27
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Expires: 1988-12-30
Abstract
Abstract PROCESS FOR PRODUCING SULPHUR-MODIFIED CHLOROPRENE POLYMERS HAVING A PREDETERMINED MOONEY VISCOSITY BY POLYMERISING CHLOROPRENE AND UP TO 20% BY WEIGHT OF A COMONOMER IN AQUEOUS EMULSION WITH A PEPTISING AGENT, WHERE COAGULATION OF THE LATEX IS EFFECTED IMMEDIATELY AFTER ADDITION OF THE PEPTISING AGENT AND THAT THE POLYMER IS DRIED UNTIL A MOONEY VISCOSITY OF 30 TO 10 MOONEY UNITS ABOVE THE POTENTIAL MINIMUM IS OBTAINED.
Inventors
- 👤 Rudolf Mayer-Mader
- 👤 Willi Wolff
- 👤 Edmund Huther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:06
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C08F36/14; C08F36/16; C08C; C08C19/00; C08C19/08; C08C3/00; C08F236/00; C08F236/02; C08F236/04; C08F236/14; C08F236/16
Claims Analysis
Total Claims: 0
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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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |