Hydraulic fluid compositions, novel glucamine derivatives and co

Details Hydraulic fluid compositions, novel glucamine derivatives and co Hydraulic fluid compositions, novel glucamine derivatives and co

1987-12-23

1989-05-16

Howard, Jacqueline V.

Compositions

Heat-exchange, low-freezing or pour point, or high boiling...

Organic components

252 515A, 252 515R, C10M12904

Patent

active

048307700

ABSTRACT:
The invention relates to compositions comprising a lubricant or a hydraulic fluid and at least one compound of the general formula ##STR1## wherein n is 2, 3 or 4, X is --S--, --O--, --O--CO-- or --CH.sub.2 --, R.sup.1 is C.sub.1 -C.sub.22 alkyl, C.sub.5 -C.sub.6 cycloalkyl or phenyl, and R.sup.2 is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.4 alkyl which is substituted by an --OH group, or a group of the formula --CH.sub.2 --CH(OH)--CH.sub.2 --X--R.sup.1, wherein X and R.sup.1 have the given meanings, and to novel compounds of the formula indicated above. The glucamine derivatives of formula I are especially suitable for use as antiwear agents and as extreme pressure additives for mineral and synthetic lubricant oils and hydraulic fluids, and also as amphipolar ligands for imparting lipophilic properties to intrinsically hydrophilic metal salts, metal oxides, metal hydroxides and to protic acids. The complex compounds so obtained of the formula

REFERENCES:
patent: 2856363 (1958-10-01), Brennan
patent: 3872116 (1975-03-01), Gyson
patent: 4549882 (1985-10-01), Knapp
patent: 4551257 (1985-11-01), Horodysky
patent: 4732691 (1988-03-01), Wirth et al.

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