Additives for fluorinated oils

Details Additives for fluorinated oils Additives for fluorinated oils

2008-07-29

2008-07-29

Balasubram, Venkataraman (Department: 1624)

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C544S215000, C508S257000, C508S182000, C252S400230

Reexamination Certificate

active

07405296

ABSTRACT:
Compounds of formulawhereinRfis a (per)fluoropolyoxyalkylene chain having a number average molecular weight in the range 500-10,000;W1, W2, equal to or different from each other, are —F or —CF3;T1is equal to —CHAa—Ba(CH2CH2O)na— wherein Aa=H, CF3; Ba=O, S, NH; na=0 or an integer between 1 and 6;T2is equal to —F, —CF3, —C2F5, —(C2F4) Cl, or a group of formula:Q1, Q2equal to or different from each other, are a chain of formula -T1-l -CFW1—O—Rf—CFW2-T′2, wherein: T′2is equal to —F, —CF3, —C2F5, —(C2F4) Cl; or is a group of formula:wherein B is equal to O, S, NH; R1, R2, R3, R4, R5 equal to or different from each other are selected from H, F, NO2, CN, C1-C8perfluoroalkyl, carboxyl, phenyl (Ph), O- Ph, NH-Ph, S-Ph;wherein B is equal to O, S, NH; R1, R2, R3, R4, R5 equal to or different from each other are selected from H, F, NO2, CN, C1-C8perfluoroalkyl, carboxyl, phenyl (Ph), O- Ph, NH-Ph, S-Ph;with the proviso that at least one of Q1and Q2a is equal to:

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