Lubricant compositions which contain sulfur-containing phenol de

Details Lubricant compositions which contain sulfur-containing phenol de Lubricant compositions which contain sulfur-containing phenol de

1986-08-14

1988-09-20

Dixon, Jr., William R.

Compositions

Electrolytes for electrical devices

252 482, 252 781, 252404, 568 41, 568 44, 568 46, 568 47, 524330, 524331, 564440, 564340, 564341, 564355, C10M13500, C10M13300

Patent

active

047724056

ABSTRACT:
The invention relates to compositions comprising a lubricant or a hydraulic fluid and at least one compound of formula I ##STR1## wherein X is --S--, --O--, --CO--O--, --CH.sub.2 -- or --NR.sup.5 --, where R.sup.5 is hydrogen or C.sub.1 --C.sub.8 alkyl, n is 0, 1, 2 or 3, R.sup.1 and R.sup.2 are each independently of the other hydrogen or C.sub.1 -C.sub.12 alkyl, R.sup.3 is hydrogen or methyl, and R.sup.4 is C.sub.1 -C.sub.22 alkyl, C.sub.5 -C.sub.8 cycloalkyl, aryl or aryl which is substituted by one or two C.sub.1 -C.sub.8 alkyl radicals, or is C.sub.7 -C.sub.12 aralkyl or the group ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and n have the given meanings. The sulfur-containing phenol derivatives of formula I are particularly suitable antiwear, extreme pressure and antioxidant additives for mineral and synthetic lubricants and for hydraulic fluids.
The invention further relates to novel phenol derivatives of formula I which are suitable additives for lubricants, hydraulics and elastomers.

REFERENCES:
patent: 3330804 (1967-07-01), O'Shea
patent: 3465029 (1969-09-01), Beirne
patent: 3510427 (1970-05-01), Worrel
patent: 3590085 (1971-06-01), Braus et al.
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patent: 3773722 (1973-11-01), Dexter
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patent: 4021468 (1977-05-01), Lind
patent: 4108831 (1978-08-01), Cottman
patent: 4147666 (1979-04-01), Michaelis et al.
patent: 4165333 (1979-08-01), Kline
patent: 4260503 (1981-04-01), Michaelis
patent: 4511910 (1985-04-01), Taniguchi et al.
patent: 4612341 (1986-09-01), Spivack et al.
patent: 4618440 (1986-10-01), Steinberg et al.
Chem. Abstracts 96:189575n (1982).
Chem. Abstracts 96:199204e (1982).
Fessenden et al., Organic Chemistry, p. 966.

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