US3371059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monomer stripping
Assignee: Teknika Inc
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Filing: 1965-06-04
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Granted: 1968-02-27
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Expires: 1985-06-04
Abstract
No abstract record available.
Inventors
- 👤 Stanley R Rich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:42
CPC Classifications
F; F04; F04D; F04D1/00; F04D1/12; B; B01; B01D; B01D19/00; B01D19/0042; B01D19/0052; B01D19/0057; B01D19/02; B04; B04B; B04B15/00; B04B15/04; B04B5/00; B04B5/08; Y; Y10; Y10S; Y10S159/00; Y10S159/04; Y10S159/10; Y10S159/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A METHOD OF REMOVING UNREACTED MONOMER FROM A POLYMER LATEX COMPRISING: (A) CENTRIFUGATING SAID LATEX IN A CENTRIFUGE TO THE RANGE OF ABOUT 10 TO 150 GRAVITIES; (B) HEATING SAID LATEX TO AT LEAST THE TEMPERATURE AT WHICH THE VAPOR PRESSURE OF THE MONOMER TO BE REMOVED IS EQUAL TO THE AMBIENT PRESSURE WITHIN SAID CENTRIFUGE; (C) DURING SAID CENTRIFUGATING, IRRADIATING THE SURFACE OF SAID LATEX WITH SUFFICIENT GAS-BORNE ELASTIC WAVE ENERGY SAID UNREACTED MONOMER IS STRIPPED FROM SAID LATEX; AND (D) MAINTAINING THE RELATIVE HUMIDITY WITHIN SAID CENTRIFUGE ABOVE 75%.
Claim 2
Independent Claim
91 words
A METHOD OF REMOVING UNREACTED MONOMER FROM A POLYMER LATEX COMPRISING: (A) CENTRIFUGATING SAID LATEX IN A CENTRIFUGE TO THE RANGE OF ABOUT 10 TO 150 GRAVITIES; (B) HEATING SAID LATEX TO AT LEAST THE TEMPERATURE AT WHICH THE VAPOR PRESSURE OF THE MONOMER TO BE REMOVED IS EQUAL TO THE AMBIENT PRESSURE WITHIN SAID CENTRIFUGE; (C) DURING SAID CENTRIFUGATING, IRRADIATING THE SURFACE OF SAID LATEX WITH SUFFICIENT GAS-BORNE ELASTIC WAVE ENERGY SAID UNREACTED MONOMER IS STRIPPED FROM SAID LATEX; AND (D) MAINTAINING THE RELATIVE HUMIDITY WITHIN SAID CENTRIFUGE ABOVE 75%.
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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |