US3558541A
Expired / Lapsed
US
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Method for agglomerating latices with an anhydride
Assignee: Monsanto Co
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Filing: 1967-10-23
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Granted: 1971-01-26
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Expires: 1987-10-23
Abstract
Abstract THERE IS DISCLOSED A PROCESS FOR AGGLOMERATING LATICES OF A POLYMER TO PROVIDE LARGER PARTICLES. AN ACID ANHYDRIDE IS ADMIXED WITH AN AQUEOUS LATEX OF A POLYMER WHICH CONTAINS AN ORGANIC ACID SALT EMULSIGYING AGENT FOLTHE LATEX AND THE ADMIXTURE IS ALLOWED TO STAND FOR A PERIOD SUFFICIENT TO HYDROLYZE THE ACID ANHYDRIDE AND PRODUCE AGGLOMERATION OF THE PLYMER PARTICLES. THEREAFTER, THE LATEX IS STABILIZED WITH EMULSIFYING AGENT.
Inventors
- 👤 William O Dalton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:37
CPC Classifications
C; C08; C08C; C08C1/00; C08C1/02; C08C1/065; C08C1/07
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |