Fluorosurfactants

The present invention provides a surfactant having a formula selected from the group consisting of: B-((X)x-(CH2)a-A)n (VI), (A-(CH2)a-(X)x-B-(X)x-(CH2)a-A)n (IV), (A-(CH2)a- (Χ)x-Β)n (V), and (B)n-(X)x-(CH2)a-A (VII), wherein A is a perfluoropolyether; a is a positive integer; X is either a covalen...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Clive A Smith, Xin Li, Frank F Craig, Alexandra Clay
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention provides a surfactant having a formula selected from the group consisting of: B-((X)x-(CH2)a-A)n (VI), (A-(CH2)a-(X)x-B-(X)x-(CH2)a-A)n (IV), (A-(CH2)a- (Χ)x-Β)n (V), and (B)n-(X)x-(CH2)a-A (VII), wherein A is a perfluoropolyether; a is a positive integer; X is either a covalent bond or a linking group; x is a positive integer; B is a polyalkylene oxide unit; n is a positive integer greater than 1 and, in compounds comprising more than one A, B, X, a and x, each may be the same or different. The present invention also relates to methods of making such surfactants, uses of such surfactants and emulsions comprising such surfactants.