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.

公开(公告)号：GB708908A

公开(公告)日：1954-05-12

申请号：GB2195250

申请日：1950-09-06

Applicant: STANDARD OIL DEV CO

Inventor： MORWAY ARNOLD JESSE ,  BALL EARL WILSON

IPC: C10M169/00

Abstract: A lubricating grease comprises from 30 to 60 per cent. by weight of an asphaltic residuum having a viscosity of from 1000 to 5000 s.s.u. at 100 DEG F., 20 to 50 per cent. by weight of a mineral lubricating oil having a viscosity between 35 and 300 s.s.u. at 210 DEG F., 8 to 18 per cent. by weight of an alkali or alkaline earth metal soap of fatty acids having 12 to 22 carbon atoms in the molecule and 1 to 15 per cent., preferably 6 to 12 per cent., by weight of an extreme-pressure additive. The composition is non-brittle at temperatures below 0 DEG F. and remains solid up to 250 DEG F. The asphaltic residuum preferably has a viscosity of 2500 s.s.u. at 100 DEG F. The preferred alkali or alkaline-earth metal soap is the sodium soap of rapeseed oil, but sodium stearate or calcium stearate may also be used. Lead oleate is the preferred extreme-pressure agent, and may be used in an amount of about 10 per cent. Conveniently it may be added as a 50-50 solution in mineral soil. Chlorinated and/or sulphurized fatty oils or hydrocarbons may also be used as extreme-pressure agents. From 0.05 to 1 per cent., preferably about 0.2 per cent., based on the total composition, of an oil-soluble sodium petroleum sulphonate, preferably of molecular weight 450 to 500, may also be added, to inhibit rust-formation. Other known corrosion inhibitors such as partial esters of polyhydric alcohols may be used in place of the sodium petroleum sulphonate. The petroleum sulphonate is preferably added after the grease has been cooled from its maximum temperature. Other additives such as antioxidants, rust inhibitors, viscosity index improvers, tackiness agents and polymeric thickeners may be added if desired. In an example a grease composition is prepared from 8.8 per cent. by weight of rapeseed oil, 1.9 per cent. of caustic soda, 29.1 per cent. of low and cold-test mineral oil of 50 s.s.u. viscosity at 210 DEG F., 0.2 per cent. of sodium petroleum sulphonate of molecular weight 450 to 500, 40 per cent. of asphaltic residuum of 2500 s.s.u. viscosity at 100 DEG F., and 20 per cent. of a 50 per cent. solution of lead oleate in mineral oil.