Coating friction material with alkanolamine-carboxylic acid salts
AssigneeFord Motor Company
InventorsDonald J. Melotik, Marvin H. Weintraub, Arnold E. Anderson
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Abstract
A method for using alkanolamine-carboxylic acid salts as a coating for friction materials which during use contact, at least part of the time, rustable metals. The method comprises contacting the friction material with an aqueous solution comprising at least about 0.05 weight alkanolamine-carboxylic acid salts being the reaction product of: (i) alkanolamine; and (ii) C.sub.4 -C.sub.20 carboxylic acid; and thereafter evaporating water from the aqueous coating on the friction material so as to leave the friction material with a coating comprising alkanolamine-carboxylic acid salts. Friction materials coated by above method are also claimed.
Claims12
A method for using alkanolamine-carboxylic acid salts as a coating for friction materials which during use contact rustable metals, which method comprises:
- (A) contacting said friction material with an aqueous solution comprising at least about 0.05 weight percent said alkanolamine-carboxylic acid salts which are the reaction product of:
- (i) one or more alkanolamines;
- and
- (ii) one or more C.sub.4 -C.sub.20 carboxylic acids;
- (B) evaporating water from the aqueous coating on said friction material so as to leave said friction material with a coating comprising said alkanolamine carboxylic acid salts.
Dependencies are inferred from the claim text.