US2961290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of rubberlike shaped elements from rubbery polymers containing carboxyl groups
Assignee: Bayer AG
•
Filing: 1957-11-27
•
Granted: 1960-11-22
•
Expires: 1977-11-27
Abstract
No abstract record available.
Inventors
- 👤 Kolb Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:25
CPC Classifications
C; C08; C08C; C08C1/00; C08C1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PROCESS FOR THE PRODUCTION OF A RUBBER-LIKE SHAPED ARTICLE WHICH COMPRISES CONTACTING AN AQUEOUS EMULSION OF A SYNTHETIC RUBBERY POLYMER CONTAINING CARBOXYL GROUPS, IN SHAPED FORM, IN A COAGULATING BATH CONTAINING A CROSS-LINKING AGENT SELECTED FROM THE GROUP CONSISTING OF A POLYAMINE AND AN ALKANOLAMINE AS WELL AS A POLYBASIC ORGANIC ACID TO FORM A COAGULATE CONTAINING SAID CROSS-LINKING AGENT AND SAID POLYBASIC OR GANIC ACID IN A QUANTITY SUFFICIENT TO EFFECT CROSS-LINKAGE OF SAID POLYMER BY REACTION OF THE CARBOXYL GROUPS WITH SAID CROSS-LINKING AGENT, REMOVING SAID COAGULATE FROM THE COAGULATING BATH, AND THEN DRYING SAID COAGULATE AT A TEMPERATURE OF ABOUT 50*C. TO 150*C. TO EFFECT CROSS-
Claim 2
Dependent Claim
110 words
A PROCESS FOR THE PRODUCTION OF A RUBBER-LIKE SHAPED ARTICLE WHICH COMPRISES CONTACTING AN AQUEOUS EMULSION OF A SYNTHETIC RUBBERY POLYMER CONTAINING CARBOXYL GROUPS, IN SHAPED FORM, IN A COAGULATING BATH CONTAINING A CROSS-LINKING AGENT SELECTED FROM THE GROUP CONSISTING OF A POLYAMINE AND AN ALKANOLAMINE AS WELL AS A POLYBASIC ORGANIC ACID TO FORM A COAGULATE CONTAINING SAID CROSS-LINKING AGENT AND SAID POLYBASIC OR GANIC ACID IN A QUANTITY SUFFICIENT TO EFFECT CROSS-LINKAGE OF SAID POLYMER BY REACTION OF THE CARBOXYL GROUPS WITH SAID CROSS-LINKING AGENT, REMOVING SAID COAGULATE FROM THE COAGULATING BATH, AND THEN DRYING SAID COAGULATE AT A TEMPERATURE OF ABOUT 50*C. TO 150*C. TO EFFECT CROSS-
References Cited (Backward Citations)
US2131982A
Cited
US2227277A
Cited
US2203387A
Cited
US2369191A
Cited
US2288982A
Cited
US2849426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |