Hydraulic fluids with improved corrosion protection for...

C - Chemistry – Metallurgy – 10 – M

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C10M 133/44 (2006.01) C10M 133/38 (2006.01) C10M 169/04 (2006.01)

Patent

CA 2409263

The invention relates to hydraulic fluids, in particular to brake fluids for motor vehicles, said fluids containing 0.005 to 0.5 wt.- % of one or more heterocyclic compounds of formula (I). In said formula (i) X represents N, Y represents CR and Z represents N, or (ii) X represents N, Y represents N and Z represents N or CR, or (iii) X represents CR, Y represents N and Z represents N, whereby R signifies hydrogen, halogen or organic groups R1 that contain 1 to 30 C atoms and n represents 0, 1 or 2.

L'invention concerne des liquides hydrauliques, notamment des liquides de frein pour véhicules automobiles, qui contiennent 0,005 à 0,5 % en poids d'un ou de plusieurs composés hétérocycliques (I) dans lesquels (i) X signifie N, Y signifie CR et Z signifie N, ou (ii) X signifie N, Y signifie N et Z signifie N ou CR, ou (iii) X signifie CR, Y signifie N et Z signifie N, R représentant hydrogène, halogène ou des restes organiques R?1¿ contenant 1 à 30 atomes C et n signifie 0, 1 ou 2.

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