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Class Information
Number: 516/145
Name: Colloid systems and wetting agents; subcombinations thereof; processes of > Compositions containing an agent for breaking (resolving) or inhibiting colloid systems; processes of breaking (resolving) or inhibiting colloid systems (e.g., gel breaking or inhibiting, coagulating, flocculating); processes of preparing the compositions > Continuous liquid phase colloid system and discontinuous liquid phase (e.g., breaking an emulsion) > The agent contains material which is different from the primary components of both liquid phases of the emulsion colloid system (i.e., more than only diluting) > Aqueous-petroleum, petroleum-aqueous, aqueous-hydrocarbon, or hydrocarbon-aqueous emulsion systems > The agent contains organic compound > The compound contains phosphorus (e.g., sulfonated lecithin)
Description: Subject matter in which the organic* compound contains phosphorus.


Patents under this class:

Patent Number Title Of Patent Date Issued
6989103 Method for separating fluids Jan. 24, 2006
6727388 Demulsifying compound and a method of breaking or inhibiting emulsions Apr. 27, 2004
6316396 Amphiphilic compounds with at least two hydrophilic and at least two hydrophobic groups based on di-, oligo- or polyolethers Nov. 13, 2001
6221389 Aqueous carrier systems for water-insoluble materials Apr. 24, 2001
6066753 Mixtures of long-chain alkyl phosphates May. 23, 2000
6015574 Lipophilic carrier systems Jan. 18, 2000
5851433 Method of and composition for breaking oil and water emulsions in crude oil processing operations Dec. 22, 1998
5597513 Demulsifier composition and method of use Jan. 28, 1997
5503774 Class of bifunctional additives for bioremediation of hydrocarbon contaminated soils and water Apr. 2, 1996
5478389 Pollution remedial composition and its preparation Dec. 26, 1995
5474607 Bitumen emulsions Dec. 12, 1995
5385695 Demulsifier methods employing b-iminodipropionate Jan. 31, 1995
5245070 Alkyl phosphates having a branched alkyl group Sep. 14, 1993
5110503 Demulsifying May. 5, 1992
4927519 Method for controlling fouling deposit formation in a liquid hydrocarbonaceous medium using multifunctional antifoulant compositions May. 22, 1990
4517102 Method of breaking an emulsion and an emulsion-emulsion breaker composition May. 14, 1985
4438026 Solvent dewatering composition Mar. 20, 1984
4432887 De-emulsification agents of microbiological origin Feb. 21, 1984
4404363 Separation of diphasic mixtures containing aromatic polyesters Sep. 13, 1983
4401584 Solvent based dewatering system with demulsifier Aug. 30, 1983
4237005 Method of breaking oil-in-water emulsions Dec. 2, 1980
4190615 Oligomeric ester chain condensates of substituted 1-hydroxy-1,1-diphosphonic acid Feb. 26, 1980



 
 
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