Substituted lactone acid materials are friction modifiers

Details Substituted lactone acid materials are friction modifiers Substituted lactone acid materials are friction modifiers

1978-10-13

1981-04-28

Metz, Andrew

Compositions

Electrolytes for electrical devices

252 482, 252 496, 252 56R, 252 781, 252 475, 252 515R, C10M 138, C10M 120

Patent

active

042644607

ABSTRACT:
Substituted lactone acid materials are usefully incorporated into an automatic transmission fluid (ATF) in an at least friction modifying amount to provide the ATF with a reduced rate of torque change normally found in ATF formulations when subjected to oxidative conditions. The sulfur-bridged C.sub.6 -C.sub.30 alkyl lactone acids are preferred.

REFERENCES:
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patent: 3520903 (1970-07-01), Pierce
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patent: 4017406 (1977-04-01), Brois et al.
patent: 4029587 (1977-06-01), Koch
patent: 4062786 (1977-12-01), Brois et al.
patent: 4123373 (1978-10-01), Brois et al.

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