Invention Grant
US08258090B2 Fluorinated lubricants 有权
氟化润滑剂

Fluorinated lubricants
Abstract:
Fluorinated lubricants of formula: T-O-[A-B]z-[A-B′]z′-A-T′  (I) wherein: A=—(X)a—O-A′-(X′)b wherein A′ is a perfluoropolyether chain comprising units (CF2O), (CF2CF2O), (CF2CF2CF2O), (CF2CF2CF2CF2O); X, X′=—CF2—, —CF2CF2—; a, b=0 or 1; B derives from olefins, of which at least one homopolymerizable by radical route, of formula: —[(CR1R2—CR3R4)j(CR5R6—CR7R8)j′]—  (Ia) wherein j=1-5, j′=0-4 and 2
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