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US3748285A Expired / Lapsed US ⏱️ 0.0 years remaining

Composition and process for cleaning ion exchange resins

Assignee: ChampionX LLC
•
Filing: 1972-06-26
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Granted: 1973-07-24
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Expires: 1992-06-26
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Abstract

Abstract WHERE Z IS SELECTED FROM THE GROUP CONSISTING OF H AND ALIPHATIC HYDROCARBON RADICALS OF FROM 4 TO 18 CARBON ATOMS, AND X IS AN INTEGER OF FROM 1 TO 20; AND (E) FROM 1 TO 15% OF AN ALKALI INORGANIC PHOSPHATE, IS DISCLOSED. A PROCESS FOR USING THIS COMPOSITION IS ALSO DISCLOSED. Z-CYCLOHEXYL- WHERE R IS INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF H, LOWER ALIPHATIC RADICAL OF FROM 1 TO 6 CARBON ATOMS AND RADICALS HAVING THE FORMULA: R(OCH2CH2)XOR A COMPOSITION USEFUL FOR CLEANING ION EXCHANGE RESIN BEDS, COMPRISING: (A) FROM 60 TO 90% BY WEIGHT OF WATER; (B) FROM 0.5 TO 4% OF AN UNSUBSTITUTED, LIQUID ALIPHATIC HYDROCARBONS HAVING FROM 5 TO 10 CARBON ATOMS IN CHAIN LENGTH; (C) FROM 0 TO 10.0% OF A WETTING AGENT SELECTED FROM THE GROUP CONSISTING OF SULFATED ALCOHOLS AND SULFONATED HYDROCARBONS AND HAVING FROM 6 TO 22 CARBON ATOMS IN CHAIN LENGTH; (D) FROM 5.0 TO 15.0% OF AN ORGANIC COMPOUND HAVING THE FORMULA

Inventors

  • 👤 D Wiltsey
  • 👤 A Oberhofer
  • 👤 R Bloemke
  • 👤 A Karklins

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 20:03
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2068; B; B01; B01J; B01J49/00; B01J49/60; C11D3/18; C11D3/43; C11D1/00; C11D1/02; C11D1/12; C11D1/14; C11D1/146

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-07-23 1977-01-22 1977-07-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-07-23 1981-01-22 1981-07-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-07-23 1985-01-22 1985-07-24 $7700.00 Window Closed / Lapsed

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