公开(公告)号：GB720673A

公开(公告)日：1954-12-22

申请号：GB338653

申请日：1953-02-06

Applicant: STANDARD OIL DEV CO

Inventor： BARTLETT JEFFREY HOBART ,  MORWAY ARNOLD JESSE ,  SERNIUK GEORGE EMIL

IPC: C10M169/00

Abstract: Hydroxyl aryl-substituted fatty acids in which the non-aryl portion contains 10-30 carbon atoms are prepared by the reaction of a phenol with a fatty acid or ester or a nitrile, and hydrolysis of the ester or nitrile to the acid. If unsaturated acids, esters or nitriles are used they are first chlorinated and then reacted with the phenol. Fatty acids and esters referred to are undecylenic, lauroleic, myristoleic, palmitoleic, oleic, gadoleic, erucic, ricinoleic, linoleic, linolenic, elaeostearic, licanic, arachidonic and clupanodonic acids and glyceryl oleate. Phenols specified are phenol, cresols, naphthols such as alpha and beta naphthols and alkyl and aryl naphthols and di- and tri-hydric phenols such as resorcinol, catechol and pyrogallol. In an example phenol, BF3 and oleic acid are mixed in a flask. The reaction mixture, after cooling and standing for 20 hours, is diluted with toluene, washed with water containing a little isopropyl alcohol and steam distilled to obtain hydroxy-phenyl stearic acid. Metal soaps of the above hydroxyl aryl-substituted fatty acids, such as the alkali or alkaline earth metal soaps, form complexes with low molecular weight salts, for example of acetic, furoic, acrylic, crotonic and ethoxypropionic acids, for example sodium acetate.ALSO:A lubricating grease comprises a lubricating oil and a metallic soap of an aryl-substituted fatty acid, the aryl group thereof containing a free hydroxyl group, and the non-aryl portion containing 10-30 carbon atoms. The aryl-substituted fatty acid may be one formed by the reaction of a fatty acid or ester or a nitrile with a phenol. Fatty acids and esters referred to are undecylenic, lauroleic, myristoleic, palmitoleic, oleic, gadoleic, erucic, ricinoleic, linoleic, linolenic, elaeostearic, licanic, arachidonic, and cluparodonic acids and glyceryl oleate. Phenols specified are phenol, cresols, naphthols such as alpha and beta naphthols and alkyl and aryl naphthols and di- and tri-hydric phenols such as resorcinol, catechol and pyrogallol. The esters and nitriles are hydrolized to the acid after reaction with the phenol. Hydroxyphenyl stearic acid is specified. The metal soap may be an alkali or alkaline earth metal, for example sodium or lithium, soap. Lubricating oils referred to are mineral oils and synthetic oils such as the branched chain esters of dibasic acids, for example di-2-ethyl hexyl sebacate, and complex esters formed by reacting together a glycol or polyglycol and a dibasic acid and an alcohol. Optional ingredients specified are soaps, for example lithium stearate, and low molecular weight salts, for example of acetic, furoic, acrylic, crotonic and ethoxypropionic acids. Examples are given of the preparation of the greases.