Patent ID: 8883892

Claim:
Adduct consisting essentially of O-PF-A wherein O is an oil, PF is a perfluoropolyether phosphate (PFPE) having the formula: (HO) 2 OP—O—(CH 2 CH 2 O) n —CH 2 —R f —CH 2 —(OCH 2 CH 2n —O—P-0(OH) 2 and wherein R f =—(CF 2 CF 2 O)p-(CF 2 O) q represents a (per)fluoropolyether chain: with random distribution of —CF 2 CF 2 O— and —CF 2 O— units, with p/q=0.5-3.0 n=1-2 and the average molecular weight of R f is from 500 to 4000, A is a substance selected from: a water-soluble polyhydroxylated substance or compound (X), a water-insoluble inorganic substance or compound (Y) and wherein it is insoluble in water and oils and oil-repellent.