US3174825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sodium chloride product having a reduced caking tendency and process for producing same
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1963-07-29
•
Granted: 1965-03-23
•
Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
- 👤 Birchall James Derek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:01
CPC Classifications
C; C01; C01D; C01D3/00; C01D3/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR REDUCING THE TENDENCY OF SODIUM CHLORIDE CRYSTALS TO CAKE COMPRISING PROVIDING A SMALL QUANTITY OF CRYSTALS OF A WATER-SOLUBLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF WATER-SOLUBLE FERROCYANIDES, FERRICYANIDES, NITROPRUSSIDES AND CARBONYL FERROCYANIDES AND NITRILOTRIACETAMIDE, COATING SAID CRYSTALS OF SAID WATER-SOLUBLE COMPOUND WITH ABOUT 0.1 TO 5.0% BY WEIGHT OF AT LEAST ONE LIQUID ORGANIC SILOXANE THAT IS CAPABLE OF REACTING WITH WATER TO YIELD A WATER-RESISTANT POLYMERIC FILM, AND ADDING SAID SILOXANE-COATED CRYSTALS OF SAID WATER-SOLUBLE COMPOUND TO SODIUM CHLORIDE AS AN ANTI-CAKING AGENT.
Claim 2
Dependent Claim
88 words
A PROCESS FOR REDUCING THE TENDENCY OF SODIUM CHLORIDE CRYSTALS TO CAKE COMPRISING PROVIDING A SMALL QUANTITY OF CRYSTALS OF A WATER-SOLUBLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF WATER-SOLUBLE FERROCYANIDES, FERRICYANIDES, NITROPRUSSIDES AND CARBONYL FERROCYANIDES AND NITRILOTRIACETAMIDE, COATING SAID CRYSTALS OF SAID WATER-SOLUBLE COMPOUND WITH ABOUT 0.1 TO 5.0% BY WEIGHT OF AT LEAST ONE LIQUID ORGANIC SILOXANE THAT IS CAPABLE OF REACTING WITH WATER TO YIELD A WATER-RESISTANT POLYMERIC FILM, AND ADDING SAID SILOXANE-COATED CRYSTALS OF SAID WATER-SOLUBLE COMPOUND TO SODIUM CHLORIDE AS AN ANTI-CAKING AGENT.
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |