US3660324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for production of cationic synthetic rubber latex
Assignee: JSR Corp
•
Filing: 1970-03-02
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Granted: 1972-05-02
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Expires: 1990-03-02
Abstract
Abstract A CATIONIC SURFACTANT COMPRISING AN ADDUCT OF ETHYLENE OXIDE AND AN ALKYLAMINE AND AN AMPHOLYTIC SURFACTANT OR LIGNIN DERIVATIVE ARE ADDED TO AN ORDINARY ANIONIC SYNTHETIC RUBBER LATEX AND THE PH OF THE LATEX IS MAINTAINED WITHIN A CERTAIN RANGE OF ABOUT 7.5 TO 2.0; A CATIONIC SYNTHETIC RUBBER LATEX IS OBTAINED WHICH IS NOT DILUTED WITH A GREAT AMOUNT OF AN AQUEOUS MEDIUM AND WHICH IS EXCELLENT IN DISPERSION STABILITY.
Inventors
- 👤 Kotaro Onchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:11
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J2321/00
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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |