Alkaline earth metal hydrocarbyl salicylate concentrates, their

Details Alkaline earth metal hydrocarbyl salicylate concentrates, their Alkaline earth metal hydrocarbyl salicylate concentrates, their

1994-12-08

1995-10-17

McAvoy, Ellen M.

Compositions

Electrolytes for electrical devices

252 39, 252 496, C10M15920, C10M15922

Patent

active

054587905

ABSTRACT:
An additive concentrate having a TBN greater than 300 suitable for incorporation into a finished lubricating oil comprises: (I) a lubricating oil soluble overbased alkaline earth metal hydrocarbyl salicylate modified by reaction to incorporate (a) an aldehyde, and (b) from 2 to 40% by weight, based on the weight of the concentrate, of either (i) at least one carboxylic acid having the formula: ##STR1## wherein R.sup.3 is a C.sub.10 to C.sub.24 alkyl or alkenyl group and R.sup.4 is either hydrogen, a C.sub.1 to C.sub.4 alkyl group or a CH.sub.2 COOH group, or an anhydride or ester thereof, or (ii) a di- or poly-carboxylic acid containing from 36 to 100 carbon atoms or an acid anhydride, acid chloride or ester thereof, and (II) a lubricating oil.

REFERENCES:
patent: 4627928 (1986-12-01), Karn
patent: 4719023 (1988-01-01), MacPhail et al.
patent: 4876020 (1989-10-01), Zon et al.
patent: 5162085 (1992-11-01), Cane et al.
patent: 5281345 (1994-01-01), Crawford et al.
patent: 5380508 (1995-01-01), Inoue

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