Patent US3799902A successfully refreshed from Google Patents.
US3799902A
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Polymeric latices and sodium aluminate
Assignee: ChampionX LLC
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Filing: 1972-01-31
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Granted: 1974-03-26
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Expires: 1992-01-31
Abstract
Abstract A COATING COMPOSITION COMPRISING: (A) FROM 1 TO 99% BY WEIGHT OF SODIUM ALUMINATE; AND (B) FROM 1 TO 99% BY WEIGHT OF A STABLE LIQUID DISPERSION OF: (1) A POLYMERIC LATEX COMPOSED OF A WATER-IN-OIL EMULSION WHICH CONTAINS DISPERSED THEREIN A FINELYDIVIDED WATER-SOLUBLE ANIONIC VINYL ADDITION POLYMER, SAID POLYMERIC LATEX HAVING UNIFORMLY DISTRIBUTED THERETHROUGHOUT; (2) A WATER-SOLUBLE CATIONIC POLYMER: WITH THE WEIGHT RATIO OF (1):(2) BEING WITHIN THE RANGE OF 1:10 TO 10:1 AND THE TOTAL AMOUNT OF THIS ANIONIC POLYMER OF (1)+(2) PRESENT WITH SAID DISPERSION BEING WITHIN THE RANGE OF FROM 0.001% TO 75% BY WEIGHT.
Inventors
- 👤 D Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:53
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; A; A01; A01N; A01N25/00; A01N25/08; A01N25/10; C; C08; C08K; C08K3/00; C08K3/18; C08K3/24; C08L; C08L101/00; C08L33/00; C08L35/00; C08L57/00; C08L79/00; C08L79/02; C09; C09D; C09D157/00; C09D179/00; C09D179/02; D06M11/00; D06M11/32; D06M11/36; D06M11/45; D06M13/00; D06M13/322; D06M13/325; D06M13/332
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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |